cvs commit: src/gnu/usr.bin/groff/tmac mdoc.local src/lib Makefile src/lib/libpmc Makefile libpmc.c pmc.3 pmc.h Makefile hwpmc.ms src/share/examples/hwpmc README src/share/man/man4 Makefile ...

[Alexander Leidinger]

David O'Brien <obrien at freebsd.org> wrote:

>> I assume this is like a portable version of the measurement backend in
>> Intels VTune... at least I assume VTune does something like this
>> itself.
>
> Not quite - it isn't purely an Intel thing; nor is accessing event

That's the reason why I wrote "portable". :-)

> counters all VTune does.

Yes, but the other things VTune does (e.g. code analysis, knowledge about
internals of the CPU to visualize pipeline behavior, knowledge about code
structure pitfalls to optimize for more vectorization) doesn't belong into a
performance monitoring API/implementation.

Bye,
Alexander.

-- 
http://www.Leidinger.net  Alexander @ Leidinger.net: PGP ID = B0063FE7
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