The Intel processor manuals are probably the best reference for the low-level stuff. They are available online in pdf format.

Perfctr is a Linux kernel patch and user library which permits users to access the performance counters on a per-process basis. One drawback to that approach is that is very platform specific. It would be difficult to write a perl module distribution of acceptable generality.

After Compline,
Zaxo

In reply to Re: Re: Re: Dreaming of a Better Profiler by Zaxo
in thread Dreaming of a Better Profiler by samtregar

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