Processors White Papers

IA64-Linux Perf Tools for IO Dorks: Examples of IA-64 PMU Usage

Overview Itanium processors have very sophisticated performance monitoring tools integrated into the CPU. McKinley and Madison Itanium CPUs have over three hundred different types of events they can filter, trigger on, and count. The restrictions on which combinations of triggers are allowed are daunting and vary across CPU implementations. Fortunately, the tools hide this complicated mess. While the tools prevents from shooting ourselves in the foot, it's not obvious how to use those tools for measuring kernel device driver behaviors.

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PublisherHewlett-Packard File FormatPDF
Date PublishedJuly 2004
FormatWhite Papers   
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