Intel® VTune™ Amplifier XE and Intel® VTune™ Amplifier for Systems Help
This section provides reference for hardware events that can be monitored for the CPU(s):
The following performance-monitoring events are supported:
This event counts the number of the divide operations executed. Uses edge-detect and a cmask value of 1 on ARITH.FPU_DIV_ACTIVE to get the number of the divide operations executed
Counts the total number when the front end is resteered, mainly when the BPU cannot provide a correct prediction and this is corrected by other branch handling mechanisms at the front end.
This event counts both taken and not taken speculative and retired branch instructions.
This event counts both taken and not taken speculative and retired macro-conditional branch instructions.
This event counts both taken and not taken speculative and retired macro-unconditional branch instructions, excluding calls and indirects.
This event counts both taken and not taken speculative and retired direct near calls.
This event counts both taken and not taken speculative and retired indirect branches excluding calls and return branches.
This event counts both taken and not taken speculative and retired indirect branches that have a return mnemonic.
This event counts not taken macro-conditional branch instructions.
This event counts taken speculative and retired macro-conditional branch instructions.
This event counts taken speculative and retired macro-conditional branch instructions excluding calls and indirect branches.
This event counts taken speculative and retired direct near calls.
This event counts taken speculative and retired indirect branches excluding calls and return branches.
This event counts taken speculative and retired indirect calls including both register and memory indirect.
This event counts taken speculative and retired indirect branches that have a return mnemonic.
This event counts all (macro) branch instructions retired.
This is a precise version of BR_INST_RETIRED.ALL_BRANCHES that counts all (macro) branch instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts conditional branch instructions retired.
This is a precise version (that is, uses PEBS) of the event that counts conditional branch instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts far branch instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts both direct and indirect near call instructions retired.
This is a precise version (that is, uses PEBS) of the event that counts both direct and indirect near call instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts both direct and indirect macro near call instructions retired (captured in ring 3).
This is a precise version (that is, uses PEBS) of the event that counts both direct and indirect macro near call instructions retired (captured in ring 3).
This is a non-precise version (that is, does not use PEBS) of the event that counts return instructions retired.
This is a precise version (that is, uses PEBS) of the event that counts return instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts taken branch instructions retired.
This is a precise version (that is, uses PEBS) of the event that counts taken branch instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts not taken branch instructions retired.
This event counts both taken and not taken speculative and retired mispredicted branch instructions.
This event counts both taken and not taken speculative and retired mispredicted macro conditional branch instructions.
This event counts both taken and not taken mispredicted indirect branches excluding calls and returns.
This event counts not taken speculative and retired mispredicted macro conditional branch instructions.
This event counts taken speculative and retired mispredicted macro conditional branch instructions.
This event counts taken speculative and retired mispredicted indirect branches excluding calls and returns.
Taken speculative and retired mispredicted indirect calls
This event counts all mispredicted macro branch instructions retired.
This is a precise version of BR_MISP_RETIRED.ALL_BRANCHES that counts all mispredicted macro branch instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts mispredicted conditional branch instructions retired.
This is a precise version (that is, uses PEBS) of the event that counts mispredicted conditional branch instructions retired.
number of near branch instructions retired that were mispredicted and taken.
number of near branch instructions retired that were mispredicted and taken. (Precise Event - PEBS)
This is a non-precise version (that is, does not use PEBS) of the event that counts mispredicted return instructions retired.
This is a precise version (that is, uses PEBS) of the event that counts mispredicted return instructions retired.
This event counts the unhalted core cycles during which the thread is in the ring 0 privileged mode.
This event counts when there is a transition from ring 1,2 or 3 to ring0.
This event counts unhalted core cycles during which the thread is in rings 1, 2, or 3.
Count XClk pulses when this thread is unhalted and the other thread is halted.
This is a fixed-frequency event programmed to general counters. It counts when the core is unhalted at 100 Mhz.
Reference cycles when the at least one thread on the physical core is unhalted (counts at 100 MHz rate)
This event counts the number of reference cycles when the core is not in a halt state. The core enters the halt state when it is running the HLT instruction or the MWAIT instruction. This event is not affected by core frequency changes (for example, P states, TM2 transitions) but has the same incrementing frequency as the time stamp counter. This event can approximate elapsed time while the core was not in a halt state. This event has a constant ratio with the CPU_CLK_UNHALTED.REF_XCLK event. It is counted on a dedicated fixed counter, leaving the four (eight when Hyperthreading is disabled) programmable counters available for other events. Note: On all current platforms this event stops counting during 'throttling ™' states duty off periods the processor is 'halted'. This event is clocked by base clock (100 Mhz) on Sandy Bridge. The counter update is done at a lower clock rate then the core clock the overflow status bit for this counter may appear 'sticky'. After the counter has overflowed and software clears the overflow status bit and resets the counter to less than MAX. The reset value to the counter is not clocked immediately so the overflow status bit will flip 'high (1)' and generate another PMI (if enabled) after which the reset value gets clocked into the counter. Therefore, software will get the interrupt, read the overflow status bit '1 for bit 34 while the counter value is less than MAX. Software should ignore this case....
This event counts the number of core cycles while the thread is not in a halt state. The thread enters the halt state when it is running the HLT instruction. This event is a component in many key event ratios. The core frequency may change from time to time due to transitions associated with Enhanced Intel SpeedStep Technology or TM2. For this reason this event may have a changing ratio with regards to time. When the core frequency is constant, this event can approximate elapsed time while the core was not in the halt state. It is counted on a dedicated fixed counter, leaving the four (eight when Hyperthreading is disabled) programmable counters available for other events...
Core cycles when at least one thread on the physical core is not in halt state
This is an architectural event that counts the number of thread cycles while the thread is not in a halt state. The thread enters the halt state when it is running the HLT instruction. The core frequency may change from time to time due to power or thermal throttling. For this reason, this event may have a changing ratio with regards to wall clock time.
Core cycles when at least one thread on the physical core is not in halt state
Cycles while L1 cache miss demand load is outstanding.
Counts number of cycles the CPU has at least one pending demand load request missing the L1 data cache.
Cycles while L2 cache miss demand load is outstanding.
Counts number of cycles the CPU has at least one pending demand* load request missing the L2 cache.
Counts number of cycles the CPU has at least one pending demand load request (that is cycles with non-completed load waiting for its data from memory subsystem)
Cycles while memory subsystem has an outstanding load.
Counts number of cycles nothing is executed on any execution port.
Execution stalls while L1 cache miss demand load is outstanding.
Counts number of cycles nothing is executed on any execution port, while there was at least one pending demand load request missing the L1 data cache.
Execution stalls while L2 cache miss demand load is outstanding.
Counts number of cycles nothing is executed on any execution port, while there was at least one pending demand* load request missing the L2 cache. (as a footprint) * includes also L1 HW prefetch requests that may or may not be required by demands
Counts number of cycles nothing is executed on any execution port, while there was at least one pending demand load request.
Execution stalls while memory subsystem has an outstanding load.
Total execution stalls.
This event counts Decode Stream Buffer (DSB)-to-MITE switch true penalty cycles. These cycles do not include uops routed through because of the switch itself, for example, when Instruction Decode Queue (IDQ) pre-allocation is unavailable, or Instruction Decode Queue (IDQ) is full. SBD-to-MITE switch true penalty cycles happen after the merge mux (MM) receives Decode Stream Buffer (DSB) Sync-indication until receiving the first MITE uop. MM is placed before Instruction Decode Queue (IDQ) to merge uops being fed from the MITE and Decode Stream Buffer (DSB) paths. Decode Stream Buffer (DSB) inserts the Sync-indication whenever a Decode Stream Buffer (DSB)-to-MITE switch occurs. Penalty: A Decode Stream Buffer (DSB) hit followed by a Decode Stream Buffer (DSB) miss can cost up to six cycles in which no uops are delivered to the IDQ. Most often, such switches from the Decode Stream Buffer (DSB) to the legacy pipeline cost 0?2 cycles.
This event counts load misses in all DTLB levels that cause page walks of any page size (4K/2M/4M/1G).
Load operations that miss the first DTLB level but hit the second and do not cause page walks
Load misses that miss the DTLB and hit the STLB (4K)
Demand load Miss in all translation lookaside buffer (TLB) levels causes a page walk that completes of any page size.
This event counts load misses in all DTLB levels that cause a completed page walk (4K page size). The page walk can end with or without a fault.
This event counts the number of cycles while PMH is busy with the page walk.
This event counts store misses in all DTLB levels that cause page walks of any page size (4K/2M/4M/1G).
Store operations that miss the first TLB level but hit the second and do not cause page walks
Store misses that miss the DTLB and hit the STLB (4K)
Store misses in all DTLB levels that cause completed page walks
This event counts store misses in all DTLB levels that cause a completed page walk (4K page size). The page walk can end with or without a fault.
This event counts the number of cycles while PMH is busy with the page walk.
This event counts cycles for an extended page table walk. The Extended Page directory cache differs from standard TLB caches by the operating system that use it. Virtual machine operating systems use the extended page directory cache, while guest operating systems use the standard TLB caches.
Number of SSE/AVX computational 128-bit packed double precision floating-point instructions retired. Each count represents 2 computations. Applies to SSE* and AVX* packed double precision floating-point instructions: ADD SUB MUL DIV MIN MAX SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational 128-bit packed single precision floating-point instructions retired. Each count represents 4 computations. Applies to SSE* and AVX* packed single precision floating-point instructions: ADD SUB MUL DIV MIN MAX RCP RSQRT SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational 256-bit packed double precision floating-point instructions retired. Each count represents 4 computations. Applies to SSE* and AVX* packed double precision floating-point instructions: ADD SUB MUL DIV MIN MAX SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational 256-bit packed single precision floating-point instructions retired. Each count represents 8 computations. Applies to SSE* and AVX* packed single precision floating-point instructions: ADD SUB MUL DIV MIN MAX RCP RSQRT SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational double precision floating-point instructions retired. Applies to SSE* and AVX*scalar, double and single precision floating-point: ADD SUB MUL DIV MIN MAX SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element. ?
Number of SSE/AVX computational packed floating-point instructions retired. Applies to SSE* and AVX*, packed, double and single precision floating-point: ADD SUB MUL DIV MIN MAX RSQRT RCP SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational scalar floating-point instructions retired. Applies to SSE* and AVX* scalar, double and single precision floating-point: ADD SUB MUL DIV MIN MAX RSQRT RCP SQRT FM(N)ADD/SUB. FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational scalar double precision floating-point instructions retired. Each count represents 1 computation. Applies to SSE* and AVX* scalar double precision floating-point instructions: ADD SUB MUL DIV MIN MAX SQRT FM(N)ADD/SUB. FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational scalar single precision floating-point instructions retired. Each count represents 1 computation. Applies to SSE* and AVX* scalar single precision floating-point instructions: ADD SUB MUL DIV MIN MAX RCP RSQRT SQRT FM(N)ADD/SUB. FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element.
Number of SSE/AVX computational single precision floating-point instructions retired. Applies to SSE* and AVX*scalar, double and single precision floating-point: ADD SUB MUL DIV MIN MAX RCP RSQRT SQRT DPP FM(N)ADD/SUB. DPP and FM(N)ADD/SUB instructions count twice as they perform multiple calculations per element. ?
This event counts cycles with any input and output SSE or x87 FP assist. If an input and output assist are detected on the same cycle the event increments by 1.
This is a non-precise version (that is, does not use PEBS) of the event that counts any input SSE* FP assist - invalid operation, denormal operand, dividing by zero, SNaN operand. Counting includes only cases involving penalties that required micro-code assist intervention.
This is a non-precise version (that is, does not use PEBS) of the event that counts the number of SSE* floating point (FP) micro-code assist (numeric overflow/underflow) when the output value (destination register) is invalid. Counting covers only cases involving penalties that require micro-code assist intervention.
This is a non-precise version (that is, does not use PEBS) of the event that counts x87 floating point (FP) micro-code assist (invalid operation, denormal operand, SNaN operand) when the input value (one of the source operands to an FP instruction) is invalid.
This is a non-precise version (that is, does not use PEBS) of the event that counts the number of x87 floating point (FP) micro-code assist (numeric overflow/underflow, inexact result) when the output value (destination register) is invalid.
Number of times HLE abort was triggered
Number of times an HLE abort was attributed to a Memory condition (See TSX_Memory event for additional details)
Number of times the TSX watchdog signaled an HLE abort
Number of times a disallowed operation caused an HLE abort
Number of times HLE caused a fault
Number of times HLE aborted and was not due to the abort conditions in subevents 3-6
Number of times HLE abort was triggered (PEBS)
Number of times HLE commit succeeded
Number of times we entered an HLE region; does not count nested transactions
This event counts the number of both cacheable and noncacheable Instruction Cache, Streaming Buffer and Victim Cache Reads including UC fetches.
This event counts cycles during which the demand fetch waits for data (wfdM104H) from L2 or iSB (opportunistic hit).
This event counts the number of instruction cache, streaming buffer and victim cache misses. Counting includes UC accesses.
This event counts the number of cycles 4 uops were delivered to Instruction Decode Queue (IDQ) from the Decode Stream Buffer (DSB) path. Counting includes uops that may "bypass" the IDQ.
This event counts the number of cycles uops were delivered to Instruction Decode Queue (IDQ) from the Decode Stream Buffer (DSB) path. Counting includes uops that may "bypass" the IDQ.
This event counts the number of cycles 4 uops were delivered to Instruction Decode Queue (IDQ) from the MITE path. Counting includes uops that may "bypass" the IDQ. This also means that uops are not being delivered from the Decode Stream Buffer (DSB).
This event counts the number of cycles uops were delivered to Instruction Decode Queue (IDQ) from the MITE path. Counting includes uops that may "bypass" the IDQ. This also means that uops are not being delivered from the Decode Stream Buffer (DSB).
This event counts cycles during which uops are being delivered to Instruction Decode Queue (IDQ) from the Decode Stream Buffer (DSB) path. Counting includes uops that may "bypass" the IDQ.
This event counts the number of uops delivered to Instruction Decode Queue (IDQ) from the Decode Stream Buffer (DSB) path. Counting includes uops that may "bypass" the IDQ.
This counts the number of cycles that the instruction decoder queue is empty and can indicate that the application may be bound in the front end. It does not determine whether there are uops being delivered to the Alloc stage since uops can be delivered by bypass skipping the Instruction Decode Queue (IDQ) when it is empty.
This event counts the number of uops delivered to Instruction Decode Queue (IDQ) from the MITE path. Counting includes uops that may "bypass" the IDQ. This also means that uops are not being delivered from the Decode Stream Buffer (DSB).
This event counts cycles during which uops are being delivered to Instruction Decode Queue (IDQ) from the MITE path. Counting includes uops that may "bypass" the IDQ.
This event counts the number of uops delivered to Instruction Decode Queue (IDQ) from the MITE path. Counting includes uops that may "bypass" the IDQ. This also means that uops are not being delivered from the Decode Stream Buffer (DSB).
This event counts cycles during which uops are being delivered to Instruction Decode Queue (IDQ) while the Microcode Sequenser (MS) is busy. Counting includes uops that may "bypass" the IDQ. Uops maybe initiated by Decode Stream Buffer (DSB) or MITE.
This event counts cycles during which uops initiated by Decode Stream Buffer (DSB) are being delivered to Instruction Decode Queue (IDQ) while the Microcode Sequencer (MS) is busy. Counting includes uops that may "bypass" the IDQ.
This event counts the number of deliveries to Instruction Decode Queue (IDQ) initiated by Decode Stream Buffer (DSB) while the Microcode Sequencer (MS) is busy. Counting includes uops that may "bypass" the IDQ.
This event counts the number of uops initiated by Decode Stream Buffer (DSB) that are being delivered to Instruction Decode Queue (IDQ) while the Microcode Sequencer (MS) is busy. Counting includes uops that may "bypass" the IDQ.
This event counts the number of uops initiated by MITE and delivered to Instruction Decode Queue (IDQ) while the Microcode Sequenser (MS) is busy. Counting includes uops that may "bypass" the IDQ.
Number of switches from DSB (Decode Stream Buffer) or MITE (legacy decode pipeline) to the Microcode Sequencer
This event counts the total number of uops delivered to Instruction Decode Queue (IDQ) while the Microcode Sequenser (MS) is busy. Counting includes uops that may "bypass" the IDQ. Uops maybe initiated by Decode Stream Buffer (DSB) or MITE.
This event counts the number of uops not delivered to Resource Allocation Table (RAT) per thread adding ?4 ? x? when Resource Allocation Table (RAT) is not stalled and Instruction Decode Queue (IDQ) delivers x uops to Resource Allocation Table (RAT) (where x belongs to {0,1,2,3}). Counting does not cover cases when: a. IDQ-Resource Allocation Table (RAT) pipe serves the other thread; b. Resource Allocation Table (RAT) is stalled for the thread (including uop drops and clear BE conditions); c. Instruction Decode Queue (IDQ) delivers four uops.
This event counts, on the per-thread basis, cycles when no uops are delivered to Resource Allocation Table (RAT). IDQ_Uops_Not_Delivered.core =4.
Counts cycles FE delivered 4 uops or Resource Allocation Table (RAT) was stalling FE.
This event counts, on the per-thread basis, cycles when less than 1 uop is delivered to Resource Allocation Table (RAT). IDQ_Uops_Not_Delivered.core >=3.
Cycles with less than 2 uops delivered by the front end
Cycles with less than 3 uops delivered by the front end
This event counts stalls occured due to changing prefix length (66, 67 or REX.W when they change the length of the decoded instruction). Occurrences counting is proportional to the number of prefixes in a 16B-line. This may result in the following penalties: three-cycle penalty for each LCP in a 16-byte chunk.
This event counts the number of instructions retired from execution. For instructions that consist of multiple micro-ops, this event counts the retirement of the last micro-op of the instruction. Counting continues during hardware interrupts, traps, and inside interrupt handlers. Notes: INST_RETIRED.ANY is counted by a designated fixed counter, leaving the four (eight when Hyperthreading is disabled) programmable counters available for other events. INST_RETIRED.ANY_P is counted by a programmable counter and it is an architectural performance event. Counting: Faulting executions of GETSEC/VM entry/VM Exit/MWait will not count as retired instructions...
This event counts the number of instructions (EOMs) retired. Counting covers macro-fused instructions individually (that is, increments by two).
This is a precise version (that is, uses PEBS) of the event that counts instructions retired.
This is a non-precise version (that is, does not use PEBS) of the event that counts FP operations retired. For X87 FP operations that have no exceptions counting also includes flows that have several X87, or flows that use X87 uops in the exception handling.
This event counts the number of cycles during which Resource Allocation Table (RAT) external stall is sent to Instruction Decode Queue (IDQ) for the current thread. This also includes the cycles during which the Allocator is serving another thread.
Cycles checkpoints in Resource Allocation Table (RAT) are recovering from JEClear or machine clear
Core cycles the allocator was stalled due to recovery from earlier clear event for any thread running on the physical core (e.g. misprediction or memory nuke)
This event counts the number of flushes of the big or small ITLB pages. Counting include both TLB Flush (covering all sets) and TLB Set Clear (set-specific).
This event counts store misses in all DTLB levels that cause page walks of any page size (4K/2M/4M/1G).
Operations that miss the first ITLB level but hit the second and do not cause any page walks
Core misses that miss the DTLB and hit the STLB (4K)
Misses in all ITLB levels that cause completed page walks
This event counts store misses in all DTLB levels that cause a completed page walk (4K page size). The page walk can end with or without a fault.
This event counts the number of cycles while PMH is busy with the page walk.
This event counts L1D data line replacements including opportunistic replacements, and replacements that require stall-for-replace or block-for-replace.
Cycles a demand request was blocked due to Fill Buffers inavailability
This event counts duration of L1D miss outstanding, that is each cycle number of Fill Buffers (FB) outstanding required by Demand Reads. FB either is held by demand loads, or it is held by non-demand loads and gets hit at least once by demand. The valid outstanding interval is defined until the FB deallocation by one of the following ways: from FB allocation, if FB is allocated by demand; from the demand Hit FB, if it is allocated by hardware or software prefetch. Note: In the L1D, a Demand Read contains cacheable or noncacheable demand loads, including ones causing cache-line splits and reads due to page walks resulted from any request type.
This event counts duration of L1D miss outstanding in cycles.
Cycles with L1D load Misses outstanding from any thread on physical core
This event counts the number of WB requests that hit L2 cache.
This event counts the number of L2 cache lines filling the L2. Counting does not cover rejects.
This event counts the number of L2 cache lines in the Exclusive state filling the L2. Counting does not cover rejects.
This event counts the number of L2 cache lines in the Invalidate state filling the L2. Counting does not cover rejects.
This event counts the number of L2 cache lines in the Shared state filling the L2. Counting does not cover rejects.
Clean L2 cache lines evicted by demand
This event counts the total number of L2 code requests.
This event counts the number of demand Data Read requests (including requests from L1D hardware prefetchers). These loads may hit or miss L2 cache. Only non rejected loads are counted.
Demand requests that miss L2 cache
Demand requests to L2 cache
This event counts the total number of requests from the L2 hardware prefetchers.
This event counts the total number of RFO (read for ownership) requests to L2 cache. L2 RFO requests include both L1D demand RFO misses as well as L1D RFO prefetches.
L2 cache hits when fetching instructions, code reads.
L2 cache misses when fetching instructions
This event counts the number of demand Data Read requests that hit L2 cache. Only not rejected loads are counted.
This event counts the number of demand Data Read requests that miss L2 cache. Only not rejected loads are counted.
This event counts the number of requests from the L2 hardware prefetchers that hit L2 cache. L3 prefetch new types
This event counts the number of requests from the L2 hardware prefetchers that miss L2 cache.
All requests that miss L2 cache
All L2 requests
RFO requests that hit L2 cache
RFO requests that miss L2 cache
This event counts L2 or L3 HW prefetches that access L2 cache including rejects.
This event counts transactions that access the L2 pipe including snoops, pagewalks, and so on.
This event counts the number of L2 cache accesses when fetching instructions.
This event counts Demand Data Read requests that access L2 cache, including rejects.
This event counts L1D writebacks that access L2 cache.
This event counts L2 fill requests that access L2 cache.
This event counts L2 writebacks that access L2 cache.
This event counts Read for Ownership (RFO) requests that access L2 cache.
This event counts the number of times that split load operations are temporarily blocked because all resources for handling the split accesses are in use.
This event counts how many times the load operation got the true Block-on-Store blocking code preventing store forwarding. This includes cases when: - preceding store conflicts with the load (incomplete overlap); - store forwarding is impossible due to u-arch limitations; - preceding lock RMW operations are not forwarded; - store has the no-forward bit set (uncacheable/page-split/masked stores); - all-blocking stores are used (mostly, fences and port I/O); and others. The most common case is a load blocked due to its address range overlapping with a preceding smaller uncompleted store. Note: This event does not take into account cases of out-of-SW-control (for example, SbTailHit), unknown physical STA, and cases of blocking loads on store due to being non-WB memory type or a lock. These cases are covered by other events. See the table of not supported store forwards in the Optimization Guide.
This event counts false dependencies in MOB when the partial comparison upon loose net check and dependency was resolved by the Enhanced Loose net mechanism. This may not result in high performance penalties. Loose net checks can fail when loads and stores are 4k aliased.
This event counts all not software-prefetch load dispatches that hit the fill buffer (FB) allocated for the hardware prefetch.
This event counts the number of cycles when the L1D is locked. It is a superset of the 0x1 mask (BUS_LOCK_CLOCKS.BUS_LOCK_DURATION).
This event counts cycles in which the L1 and L2 are locked due to a UC lock or split lock. A lock is asserted in case of locked memory access, due to noncacheable memory, locked operation that spans two cache lines, or a page walk from the noncacheable page table. L1D and L2 locks have a very high performance penalty and it is highly recommended to avoid such access.
This event counts core-originated cacheable demand requests that miss the last level cache (LLC). Demand requests include loads, RFOs, and hardware prefetches from L1D, and instruction fetches from IFU.
This event counts core-originated cacheable demand requests that refer to the last level cache (LLC). Demand requests include loads, RFOs, and hardware prefetches from L1D, and instruction fetches from IFU.
Cycles 4 Uops delivered by the LSD, but didn't come from the decoder
Cycles Uops delivered by the LSD, but didn't come from the decoder
Number of Uops delivered by the LSD. Read more on LSD under LSD_REPLAY.REPLAY
Number of machine clears (nukes) of any type.
This event counts both thread-specific (TS) and all-thread (AT) nukes.
Maskmov false fault - counts number of time ucode passes through Maskmov flow due to instruction's mask being 0 while the flow was completed without raising a fault.
This event counts the number of memory ordering Machine Clears detected. Memory Ordering Machine Clears can result from one of the following: 1. memory disambiguation, 2. external snoop, or 3. cross SMT-HW-thread snoop (stores) hitting load buffer.
This event counts self-modifying code (SMC) detected, which causes a machine clear.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were L3 hit and a cross-core snoop hit in the on-pkg core cache.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were HitM responses from a core on same socket (shared L3).
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were HitM responses from a core on same socket (shared L3).
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were L3 hit and a cross-core snoop hit in the on-pkg core cache.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were L3 Hit and a cross-core snoop missed in the on-pkg core cache.
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were L3 Hit and a cross-core snoop missed in the on-pkg core cache.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were hits in the last-level (L3) cache without snoops required.
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were hits in the last-level (L3) cache without snoops required.
Retired load uop whose Data Source was: local DRAM either Snoop not needed or Snoop Miss (RspI)
tbd
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were load uops missed L1 but hit a fill buffer due to a preceding miss to the same cache line with the data not ready. Note: Only two data-sources of L1/FB are applicable for AVX-256bit even though the corresponding AVX load could be serviced by a deeper level in the memory hierarchy. Data source is reported for the Low-half load.
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were load uops missed L1 but hit a fill buffer due to a preceding miss to the same cache line with the data not ready. Note: Only two data-sources of L1/FB are applicable for AVX-256bit even though the corresponding AVX load could be serviced by a deeper level in the memory hierarchy. Data source is reported for the Low-half load.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were hits in the nearest-level (L1) cache. Note: Only two data-sources of L1/FB are applicable for AVX-256bit even though the corresponding AVX load could be serviced by a deeper level in the memory hierarchy. Data source is reported for the Low-half load. This event also counts SW prefetches independent of the actual data source
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data source were hits in the nearest-level (L1) cache. Note: Only two data-sources of L1/FB are applicable for AVX-256bit even though the corresponding AVX load could be serviced by a deeper level in the memory hierarchy. Data source is reported for the Low-half load. This event also counts SW prefetches independent of the actual data source
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were misses in the nearest-level (L1) cache. Counting excludes unknown and UC data source.
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were misses in the nearest-level (L1) cache. Counting excludes unknown and UC data source.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were hits in the mid-level (L2) cache.
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were hits in the mid-level (L2) cache.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were misses in the mid-level (L2) cache. Counting excludes unknown and UC data source.
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were misses in the mid-level (L2) cache. Counting excludes unknown and UC data source.
This is a non-precise version (that is, does not use PEBS) of the event that counts retired load uops which data sources were data hits in the last-level (L3) cache without snoops required.
This is a precise version (that is, uses PEBS) of the event that counts retired load uops which data sources were data hits in the last-level (L3) cache without snoops required.
Miss in last-level (L3) cache. Excludes Unknown data-source.
Miss in last-level (L3) cache. Excludes Unknown data-source. (Precise Event - PEBS)
This event counts loads with latency value being above 128.
This event counts loads with latency value being above 16.
This event counts loads with latency value being above 256.
This event counts loads with latency value being above 32.
This event counts loads with latency value being above four.
This event counts loads with latency value being above 512.
This event counts loads with latency value being above 64.
This event counts loads with latency value being above eight.
This event counts load uops retired to the architected path with a filter on bits 0 and 1 applied. Note: This event counts AVX-256bit load/store double-pump memory uops as a single uop at retirement. This event also counts SW prefetches.
This is a precise version (that is, uses PEBS) of the event that counts load uops retired to the architected path with a filter on bits 0 and 1 applied. Note: This event ?ounts AVX-256bit load/store double-pump memory uops as a single uop at retirement. This event also counts SW prefetches.
This event counts store uops retired to the architected path with a filter on bits 0 and 1 applied. Note: This event counts AVX-256bit load/store double-pump memory uops as a single uop at retirement.
This is a precise version (that is, uses PEBS) of the event that counts store uops retired to the architected path with a filter on bits 0 and 1 applied. Note: This event ?ounts AVX-256bit load/store double-pump memory uops as a single uop at retirement.
This is a non-precise version (that is, does not use PEBS) of the event that counts load uops with locked access retired to the architected path.
This is a precise version (that is, uses PEBS) of the event that counts load uops with locked access retired to the architected path.
This is a non-precise version (that is, does not use PEBS) of the event that counts line-splitted load uops retired to the architected path. A line split is across 64B cache-line which includes a page split (4K).
This is a precise version (that is, uses PEBS) of the event that counts line-splitted load uops retired to the architected path. A line split is across 64B cache-line which includes a page split (4K).
This is a non-precise version (that is, does not use PEBS) of the event that counts line-splitted store uops retired to the architected path. A line split is across 64B cache-line which includes a page split (4K).
This is a precise version (that is, uses PEBS) of the event that counts line-splitted store uops retired to the architected path. A line split is across 64B cache-line which includes a page split (4K).
This is a non-precise version (that is, does not use PEBS) of the event that counts load uops with true STLB miss retired to the architected path. True STLB miss is an uop triggering page walk that gets completed without blocks, and later gets retired. This page walk can end up with or without a fault.
This is a precise version (that is, uses PEBS) of the event that counts load uops with true STLB miss retired to the architected path. True STLB miss is an uop triggering page walk that gets completed without blocks, and later gets retired. This page walk can end up with or without a fault.
This is a non-precise version (that is, does not use PEBS) of the event that counts store uops with true STLB miss retired to the architected path. True STLB miss is an uop triggering page walk that gets completed without blocks, and later gets retired. This page walk can end up with or without a fault.
This is a precise version (that is, uses PEBS) of the event that counts store uops true STLB miss retired to the architected path. True STLB miss is an uop triggering page walk that gets completed without blocks, and later gets retired. This page walk can end up with or without a fault.
This event counts speculative cache-line split load uops dispatched to the L1 cache.
This event counts speculative cache line split store-address (STA) uops dispatched to the L1 cache.
Number of integer Move Elimination candidate uops that were eliminated.
Number of integer Move Elimination candidate uops that were not eliminated.
Number of SIMD Move Elimination candidate uops that were eliminated.
Number of SIMD Move Elimination candidate uops that were not eliminated.
This event counts the demand and prefetch data reads. All Core Data Reads include cacheable "Demands" and L2 prefetchers (not L3 prefetchers). Counting also covers reads due to page walks resulted from any request type.
This event counts both cacheable and noncachaeble code read requests.
This event counts the Demand Data Read requests sent to uncore. Use it in conjunction with OFFCORE_REQUESTS_OUTSTANDING to determine average latency in the uncore.
This event counts the demand RFO (read for ownership) requests including regular RFOs, locks, ItoM.
This event counts the number of cases when the offcore requests buffer cannot take more entries for the core. This can happen when the superqueue does not contain eligible entries, or when L1D writeback pending FIFO requests is full. Note: Writeback pending FIFO has six entries.
This event counts the number of offcore outstanding cacheable Core Data Read transactions in the super queue every cycle. A transaction is considered to be in the Offcore outstanding state between L2 miss and transaction completion sent to requestor (SQ de-allocation). See corresponding Umask under OFFCORE_REQUESTS.
This event counts cycles when offcore outstanding cacheable Core Data Read transactions are present in the super queue. A transaction is considered to be in the Offcore outstanding state between L2 miss and transaction completion sent to requestor (SQ de-allocation). See corresponding Umask under OFFCORE_REQUESTS.
This event counts cycles when offcore outstanding Demand Data Read transactions are present in the super queue (SQ). A transaction is considered to be in the Offcore outstanding state between L2 miss and transaction completion sent to requestor (SQ de-allocation).
This event counts the number of offcore outstanding demand rfo Reads transactions in the super queue every cycle. The "Offcore outstanding" state of the transaction lasts from the L2 miss until the sending transaction completion to requestor (SQ deallocation). See the corresponding Umask under OFFCORE_REQUESTS.
This event counts the number of offcore outstanding Code Reads transactions in the super queue every cycle. The "Offcore outstanding" state of the transaction lasts from the L2 miss until the sending transaction completion to requestor (SQ deallocation). See the corresponding Umask under OFFCORE_REQUESTS.
This event counts the number of offcore outstanding Demand Data Read transactions in the super queue (SQ) every cycle. A transaction is considered to be in the Offcore outstanding state between L2 miss and transaction completion sent to requestor. See the corresponding Umask under OFFCORE_REQUESTS. Note: A prefetch promoted to Demand is counted from the promotion point.
Cycles with at least 6 offcore outstanding Demand Data Read transactions in uncore queue
This event counts the number of offcore outstanding RFO (store) transactions in the super queue (SQ) every cycle. A transaction is considered to be in the Offcore outstanding state between L2 miss and transaction completion sent to requestor (SQ de-allocation). See corresponding Umask under OFFCORE_REQUESTS.
tbd
Counts all demand & prefetch data reads that have any response type.
Counts all demand & prefetch data reads that hit in the L3.
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all demand & prefetch data reads that hit in the L3 with a snoop miss response.
Counts all demand & prefetch data reads that hit in the L3 with no details on snoop-related information.
Counts all demand & prefetch data reads that hit in the L3 and the target was non-DRAM system address.
Counts all demand & prefetch data reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that miss the L3 with a snoop miss response.
Counts all demand & prefetch data reads that miss the L3 with no details on snoop-related information.
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all demand & prefetch data reads that tbd
Counts all prefetch code reads that have any response type.
Counts all prefetch code reads that hit in the L3.
Counts all prefetch code reads that tbd
Counts all prefetch code reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all prefetch code reads that hit in the L3 with a snoop miss response.
Counts all prefetch code reads that hit in the L3 with no details on snoop-related information.
Counts all prefetch code reads that hit in the L3 and the target was non-DRAM system address.
Counts all prefetch code reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all prefetch code reads that tbd
Counts all prefetch code reads that miss the L3 with a snoop miss response.
Counts all prefetch code reads that miss the L3 with no details on snoop-related information.
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch code reads that tbd
Counts all prefetch data reads that have any response type.
Counts all prefetch data reads that hit in the L3.
Counts all prefetch data reads that tbd
Counts all prefetch data reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all prefetch data reads that hit in the L3 with a snoop miss response.
Counts all prefetch data reads that hit in the L3 with no details on snoop-related information.
Counts all prefetch data reads that hit in the L3 and the target was non-DRAM system address.
Counts all prefetch data reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all prefetch data reads that tbd
Counts all prefetch data reads that miss the L3 with a snoop miss response.
Counts all prefetch data reads that miss the L3 with no details on snoop-related information.
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts all prefetch data reads that tbd
Counts prefetch RFOs that have any response type.
Counts prefetch RFOs that hit in the L3.
Counts prefetch RFOs that tbd
Counts prefetch RFOs that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts prefetch RFOs that hit in the L3 with a snoop miss response.
Counts prefetch RFOs that hit in the L3 with no details on snoop-related information.
Counts prefetch RFOs that hit in the L3 and the target was non-DRAM system address.
Counts prefetch RFOs that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts prefetch RFOs that tbd
Counts prefetch RFOs that miss the L3 with a snoop miss response.
Counts prefetch RFOs that miss the L3 with no details on snoop-related information.
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts prefetch RFOs that tbd
Counts all demand & prefetch RFOs that have any response type.
Counts all demand & prefetch RFOs that hit in the L3.
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all demand & prefetch RFOs that hit in the L3 with a snoop miss response.
Counts all demand & prefetch RFOs that hit in the L3 with no details on snoop-related information.
Counts all demand & prefetch RFOs that hit in the L3 and the target was non-DRAM system address.
Counts all demand & prefetch RFOs that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that miss the L3 with a snoop miss response.
Counts all demand & prefetch RFOs that miss the L3 with no details on snoop-related information.
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts all demand & prefetch RFOs that tbd
Counts writebacks (modified to exclusive) that have any response type.
Counts writebacks (modified to exclusive) that hit in the L3.
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts writebacks (modified to exclusive) that hit in the L3 with a snoop miss response.
Counts writebacks (modified to exclusive) that hit in the L3 with no details on snoop-related information.
Counts writebacks (modified to exclusive) that hit in the L3 and the target was non-DRAM system address.
Counts writebacks (modified to exclusive) that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that miss the L3 with a snoop miss response.
Counts writebacks (modified to exclusive) that miss the L3 with no details on snoop-related information.
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts writebacks (modified to exclusive) that tbd
Counts all demand code reads that have any response type.
Counts all demand code reads that hit in the L3.
Counts all demand code reads that tbd
Counts all demand code reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all demand code reads that hit in the L3 with a snoop miss response.
Counts all demand code reads that hit in the L3 with no details on snoop-related information.
Counts all demand code reads that hit in the L3 and the target was non-DRAM system address.
Counts all demand code reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all demand code reads that tbd
Counts all demand code reads that miss the L3 with a snoop miss response.
Counts all demand code reads that miss the L3 with no details on snoop-related information.
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts all demand code reads that tbd
Counts demand data reads that have any response type.
Counts demand data reads that hit in the L3.
Counts demand data reads that tbd
Counts demand data reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts demand data reads that hit in the L3 with a snoop miss response.
Counts demand data reads that hit in the L3 with no details on snoop-related information.
Counts demand data reads that hit in the L3 and the target was non-DRAM system address.
Counts demand data reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts demand data reads that tbd
Counts demand data reads that miss the L3 with a snoop miss response.
Counts demand data reads that miss the L3 with no details on snoop-related information.
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts demand data reads that tbd
Counts all demand data writes (RFOs) that have any response type.
Counts all demand data writes (RFOs) that hit in the L3.
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all demand data writes (RFOs) that hit in the L3 with a snoop miss response.
Counts all demand data writes (RFOs) that hit in the L3 with no details on snoop-related information.
Counts all demand data writes (RFOs) that hit in the L3 and the target was non-DRAM system address.
Counts all demand data writes (RFOs) that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that miss the L3 with a snoop miss response.
Counts all demand data writes (RFOs) that miss the L3 with no details on snoop-related information.
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts all demand data writes (RFOs) that tbd
Counts any other requests that have any response type.
Counts any other requests that hit in the L3.
Counts any other requests that tbd
Counts any other requests that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts any other requests that hit in the L3 with a snoop miss response.
Counts any other requests that hit in the L3 with no details on snoop-related information.
Counts any other requests that hit in the L3 and the target was non-DRAM system address.
Counts any other requests that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts any other requests that tbd
Counts any other requests that miss the L3 with a snoop miss response.
Counts any other requests that miss the L3 with no details on snoop-related information.
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts any other requests that tbd
Counts all prefetch (that bring data to LLC only) code reads that have any response type.
Counts all prefetch (that bring data to LLC only) code reads that hit in the L3.
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all prefetch (that bring data to LLC only) code reads that hit in the L3 with a snoop miss response.
Counts all prefetch (that bring data to LLC only) code reads that hit in the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to LLC only) code reads that hit in the L3 and the target was non-DRAM system address.
Counts all prefetch (that bring data to LLC only) code reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that miss the L3 with a snoop miss response.
Counts all prefetch (that bring data to LLC only) code reads that miss the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to L2) data reads that have any response type.
Counts prefetch (that bring data to L2) data reads that hit in the L3.
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts prefetch (that bring data to L2) data reads that hit in the L3 with a snoop miss response.
Counts prefetch (that bring data to L2) data reads that hit in the L3 with no details on snoop-related information.
Counts prefetch (that bring data to L2) data reads that hit in the L3 and the target was non-DRAM system address.
Counts prefetch (that bring data to L2) data reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that miss the L3 with a snoop miss response.
Counts prefetch (that bring data to L2) data reads that miss the L3 with no details on snoop-related information.
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts prefetch (that bring data to L2) data reads that tbd
Counts all prefetch (that bring data to L2) RFOs that have any response type.
Counts all prefetch (that bring data to L2) RFOs that hit in the L3.
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all prefetch (that bring data to L2) RFOs that hit in the L3 with a snoop miss response.
Counts all prefetch (that bring data to L2) RFOs that hit in the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to L2) RFOs that hit in the L3 and the target was non-DRAM system address.
Counts all prefetch (that bring data to L2) RFOs that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that miss the L3 with a snoop miss response.
Counts all prefetch (that bring data to L2) RFOs that miss the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts all prefetch (that bring data to L2) RFOs that tbd
Counts prefetch (that bring data to LLC only) code reads that have any response type.
Counts prefetch (that bring data to LLC only) code reads that hit in the L3.
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts prefetch (that bring data to LLC only) code reads that hit in the L3 with a snoop miss response.
Counts prefetch (that bring data to LLC only) code reads that hit in the L3 with no details on snoop-related information.
Counts prefetch (that bring data to LLC only) code reads that hit in the L3 and the target was non-DRAM system address.
Counts prefetch (that bring data to LLC only) code reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that miss the L3 with a snoop miss response.
Counts prefetch (that bring data to LLC only) code reads that miss the L3 with no details on snoop-related information.
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts prefetch (that bring data to LLC only) code reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that have any response type.
Counts all prefetch (that bring data to LLC only) data reads that hit in the L3.
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all prefetch (that bring data to LLC only) data reads that hit in the L3 with a snoop miss response.
Counts all prefetch (that bring data to LLC only) data reads that hit in the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to LLC only) data reads that hit in the L3 and the target was non-DRAM system address.
Counts all prefetch (that bring data to LLC only) data reads that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that miss the L3 with a snoop miss response.
Counts all prefetch (that bring data to LLC only) data reads that miss the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) data reads that tbd
Counts all prefetch (that bring data to LLC only) RFOs that have any response type.
Counts all prefetch (that bring data to LLC only) RFOs that hit in the L3.
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that hit in the L3 and the snoops to sibling cores hit in either E/S state and the line is not forwarded.
Counts all prefetch (that bring data to LLC only) RFOs that hit in the L3 with a snoop miss response.
Counts all prefetch (that bring data to LLC only) RFOs that hit in the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to LLC only) RFOs that hit in the L3 and the target was non-DRAM system address.
Counts all prefetch (that bring data to LLC only) RFOs that hit in the L3 and sibling core snoops are not needed as either the core-valid bit is not set or the shared line is present in multiple cores.
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that miss the L3 with a snoop miss response.
Counts all prefetch (that bring data to LLC only) RFOs that miss the L3 with no details on snoop-related information.
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Counts all prefetch (that bring data to LLC only) RFOs that tbd
Number of times any microcode assist is invoked by HW upon uop writeback.
This is a non-precise version (that is, does not use PEBS) of the event that counts the number of transitions from AVX-256 to legacy SSE when penalty is applicable.
This is a non-precise version (that is, does not use PEBS) of the event that counts the number of transitions from legacy SSE to AVX-256 when penalty is applicable.
Number of DTLB page walker hits in the L1+FB
Number of DTLB page walker hits in the L2
Number of DTLB page walker hits in the L3 + XSNP
Number of DTLB page walker hits in Memory
Number of ITLB page walker hits in the L1+FB
Number of ITLB page walker hits in the L2
Number of ITLB page walker hits in the L3 + XSNP
This event counts resource-related stall cycles. Reasons for stalls can be as follows: - *any* u-arch structure got full (LB, SB, RS, ROB, BOB, LM, Physical Register Reclaim Table (PRRT), or Physical History Table (PHT) slots) - *any* u-arch structure got empty (like INT/SIMD FreeLists) - FPU control word (FPCW), MXCSR and others. This counts cycles that the pipeline backend blocked uop delivery from the front end.
This event counts ROB full stall cycles. This counts cycles that the pipeline backend blocked uop delivery from the front end.
This event counts stall cycles caused by absence of eligible entries in the reservation station (RS). This may result from RS overflow, or from RS deallocation because of the RS array Write Port allocation scheme (each RS entry has two write ports instead of four. As a result, empty entries could not be used, although RS is not really full). This counts cycles that the pipeline backend blocked uop delivery from the front end.
This event counts stall cycles caused by the store buffer (SB) overflow (excluding draining from synch). This counts cycles that the pipeline backend blocked uop delivery from the front end.
This event counts cases of saving new LBR records by hardware. This assumes proper enabling of LBRs and takes into account LBR filtering done by the LBR_SELECT register.
This event counts cycles during which the reservation station (RS) is empty for the thread. Note: In ST-mode, not active thread should drive 0. This is usually caused by severely costly branch mispredictions, or allocator/FE issues.
Counts end of periods where the Reservation Station (RS) was empty. Could be useful to precisely locate Frontend Latency Bound issues.
Number of times RTM abort was triggered
Number of times an RTM abort was attributed to a Memory condition (See TSX_Memory event for additional details)
Number of times the TSX watchdog signaled an RTM abort
Number of times a disallowed operation caused an RTM abort
Number of times a RTM caused a fault
Number of times RTM aborted and was not due to the abort conditions in subevents 3-6
Number of times RTM abort was triggered (PEBS)
Number of times RTM commit succeeded
Number of times we entered an RTM region; does not count nested transactions
Unfriendly TSX abort triggered by a flowmarker
Unfriendly TSX abort triggered by a vzeroupper instruction
Unfriendly TSX abort triggered by a nest count that is too deep
RTM region detected inside HLE
# HLE inside HLE+
Number of times a TSX Abort was triggered due to an evicted line caused by a transaction overflow
Number of times a TSX line had a cache conflict
Number of times a TSX Abort was triggered due to release/commit but data and address mismatch
Number of times a TSX Abort was triggered due to commit but Lock Buffer not empty
Number of times a TSX Abort was triggered due to attempting an unsupported alignment from Lock Buffer
Number of times a TSX Abort was triggered due to a non-release/commit store to lock
Number of times we could not allocate Lock Buffer
Number of entries allocated. Account for Any type: e.g. Snoop, Core aperture, etc.
Each cycle count number of all Core outgoing valid entries. Such entry is defined as valid from it's allocation till first of IDI0 or DRS0 messages is sent out. Accounts for Coherent and non-coherent traffic.
Cycles with at least one request outstanding is waiting for data return from memory controller. Account for coherent and non-coherent requests initiated by IA Cores, Processor Graphics Unit, or LLC.;
Each cycle count number of 'valid' coherent Data Read entries that are in DirectData mode. Such entry is defined as valid when it is allocated till data sent to Core (first chunk, IDI0). Applicable for IA Cores' requests in normal case.
Total number of Core outgoing entries allocated. Accounts for Coherent and non-coherent traffic.
Number of Core coherent Data Read entries allocated in DirectData mode
Number of Writes allocated - any write transactions: full/partials writes and evictions.
L3 Lookup any request that access cache and found line in E or S-state
L3 Lookup any request that access cache and found line in I-state
L3 Lookup any request that access cache and found line in M-state
L3 Lookup any request that access cache and found line in MESI-state
L3 Lookup read request that access cache and found line in E or S-state
L3 Lookup read request that access cache and found line in I-state
L3 Lookup read request that access cache and found line in M-state
L3 Lookup read request that access cache and found line in any MESI-state
L3 Lookup write request that access cache and found line in E or S-state
L3 Lookup write request that access cache and found line in M-state
L3 Lookup write request that access cache and found line in MESI-state
A cross-core snoop initiated by this Cbox due to processor core memory request which hits a modified line in some processor core.
A cross-core snoop initiated by this Cbox due to processor core memory request which hits a non-modified line in some processor core.
A cross-core snoop resulted from L3 Eviction which misses in some processor core.
A cross-core snoop initiated by this Cbox due to processor core memory request which misses in some processor core.
This 48-bit fixed counter counts the UCLK cycles
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 0.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 1.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 2.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 3.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 4.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 5.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 6.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 7.
Number of uops executed from any thread
Cycles at least 1 micro-op is executed from any thread on physical core
Cycles at least 2 micro-op is executed from any thread on physical core
Cycles at least 3 micro-op is executed from any thread on physical core
Cycles at least 4 micro-op is executed from any thread on physical core
Cycles with no micro-ops executed from any thread on physical core
Cycles where at least 1 uop was executed per-thread
Cycles where at least 2 uops were executed per-thread
Cycles where at least 3 uops were executed per-thread
Cycles where at least 4 uops were executed per-thread
This event counts cycles during which no uops were dispatched from the Reservation Station (RS) per thread.
Number of uops to be executed per-thread each cycle.
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 0.
Cycles per core when uops are exectuted in port 0
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 1.
Cycles per core when uops are exectuted in port 1
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 2.
Cycles per core when uops are dispatched to port 2
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 3.
Cycles per core when uops are dispatched to port 3
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 4.
Cycles per core when uops are exectuted in port 4
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 5.
Cycles per core when uops are exectuted in port 5
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 6.
Cycles per core when uops are exectuted in port 6
This event counts, on the per-thread basis, cycles during which uops are dispatched from the Reservation Station (RS) to port 7.
Cycles per core when uops are dispatched to port 7
This event counts the number of Uops issued by the Resource Allocation Table (RAT) to the reservation station (RS).
Number of flags-merge uops being allocated. Such uops considered perf sensitive; added by GSR u-arch.
Number of Multiply packed/scalar single precision uops allocated
Number of slow LEA uops being allocated. A uop is generally considered SlowLea if it has 3 sources (e.g. 2 sources + immediate) regardless if as a result of LEA instruction or not.
This event counts cycles during which the Resource Allocation Table (RAT) does not issue any Uops to the reservation station (RS) for the current thread.
This event counts all actually retired uops. Counting increments by two for micro-fused uops, and by one for macro-fused and other uops. Maximal increment value for one cycle is eight.
This is a precise version (that is, uses PEBS) of the event that counts all actually retired uops. Counting increments by two for micro-fused uops, and by one for macro-fused and other uops. Maximal increment value for one cycle is eight.
This is a non-precise version (that is, does not use PEBS) of the event that counts the number of retirement slots used.
This is a precise version (that is, uses PEBS) of the event that counts the number of retirement slots used.
This is a non-precise version (that is, does not use PEBS) of the event that counts cycles without actually retired uops.
Number of cycles using always true condition (uops_ret < 16) applied to non PEBS uops retired event.
This event counts the number of micro-operations cancelled after they were dispatched from the scheduler to the execution units when the total number of physical register read ports across all dispatch ports exceeds the read bandwidth of the physical register file. The SIMD_PRF subevent applies to the following instructions: VDPPS, DPPS, VPCMPESTRI, PCMPESTRI, VPCMPESTRM, PCMPESTRM, VFMADD*, VFMADDSUB*, VFMSUB*, VMSUBADD*, VFNMADD*, VFNMSUB*. See the Broadwell Optimization Guide for more information.