tracking performance, actual cache hits/misses, page hits/misses

This is a discussion on tracking performance, actual cache hits/misses, page hits/misses within the C Programming forums, part of the General Programming Boards category; I am writing a calculation intensive program in C (Linux OS, specifically Fedora 11) and was wondering if there is ...

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    tracking performance, actual cache hits/misses, page hits/misses

    I am writing a calculation intensive program in C (Linux OS, specifically Fedora 11) and was wondering if there is a way to track cache hits/misses and page hits/misses?

    And more generally I'm looking for a way to track anything that could be of use in analysis of performance on different machines, is there a way to do this in the C program itself or a utility already out there that can do this?

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    The sar and vmstat utilities come to mind; however since Linux is open source there probably are many interfaces to the kernel that can be invoked to get at that information. I only work in Unix but there are many Linux folks in this forum and I'm sure they can provide better answers.

  3. #3
    cas
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    If it supports your CPU, look at valgrind. Its cachegrind tool will do some of what you want. callgrind (an extended version of cachegrind) + the KCachegrind front end is an especially useful way to do profiling.

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