Finding Hotspots

You can use the Intel® VTune™ Amplifier to identify and analyze hotspot functions in your serial or parallel application by performing a series of steps in a workflow. This tutorial guides you through these workflow steps while using a sample ray-tracer application named tachyon.

Workflow steps to find hotspots

Step 1: Prepare for analysis	Build an application to analyze for hotspots and create a new VTune Amplifier project
Step 2: Find hotspots	Choose and run the Basic Hotspots analysis. Interpret the result data. View and analyze code of the performance-critical function.
Step 3: Eliminate hotspots	Modify the code to tune the algorithms or rebuild the code with Intel® Compiler.
Step 4: Check your work	Re-build the target, re-run the Basic Hotspots analysis, and compare the result data before and after optimization.