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Re: [PATCH 08/12] perf: Carve out mmap helpers for general use

From:  Arnaldo Carvalho de Melo <>
To:  Borislav Petkov <>
Subject:  Re: [PATCH 08/12] perf: Carve out mmap helpers for general use
Date:  Fri, 21 Jan 2011 15:29:37 -0200
Message-ID:  <>
Cc:,,,,,,, Borislav Petkov <>
Archive-link:  Article

Em Fri, Jan 21, 2011 at 04:09:31PM +0100, Borislav Petkov escreveu:
> From: Borislav Petkov <>
> Export the mmap_read* helpers into tools/lib/perf/mmap.[ch]

Borislav, can you take a look at:;...

More specifically take a look at the function test__basic_mmap in:;...

434 /*
435  * This test will generate random numbers of calls to some getpid syscalls,
436  * then establish an mmap for a group of events that are created to monitor
437  * the syscalls.
438  *
439  * It will receive the events, using mmap, use its PERF_SAMPLE_ID generated
440  * field to map back to its respective perf_evsel instance.
441  *
442  * Then it checks if the number of syscalls reported as perf events by
443  * the kernel corresponds to the number of syscalls made.
444  */

I'll read the rest of your patchset to see if there are more things like

- Arnaldo

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