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Intel s Vtune Performance Analyzer for Windows Assessment

Test Code. Serial and pthreaded stencil codesPro: Codes are well understoodCon: Codes may be too smallFull apps may have been better test. Windows VTune Pros. Analyzes executable directlyNo extra recompiling / instrumentation neededLanguage / compiler independentGUI helps on several frontsEas

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Intel s Vtune Performance Analyzer for Windows Assessment

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    1. Intel’s Vtune Performance Analyzer (for Windows) Assessment Kaushik Datta December 5, 2007

    2. Test Code Serial and pthreaded stencil codes Pro: Codes are well understood Con: Codes may be too small Full apps may have been better test

    3. Windows VTune Pros Analyzes executable directly No extra recompiling / instrumentation needed Language / compiler independent GUI helps on several fronts Easier to use Graphical perf results displayed instantly Supports Intel quad-core processors However, I didn’t test this

    4. Windows VTune Cons No hooks to specify what code segments to profile Too many other processes also profiled Possibly useful for full apps, but not kernels Insufficient perf data about your process Some counter values seemed wrong Perf counters are only sampled continuous data collection might be available “Thread Profiler” tool didn’t seem to profile my kernel’s spawned threads No direct flop counts

    5. Available Events on Windows ClockTicks Instructions Retired MMX / x87 / SIMD Instructions Retired (but no direct flop counts found) Loads/Stores Retired Cache Read Hits / Misses TLB Load / Store Misses Calls / Conditionals / Branches Bus Accesses

    6. Call Graph

    7. Time Breakdown

    8. Counter Monitors

    9. Counter Sampling

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