Re: [PATCH] perf, x86: catch spurious interrupts after disablingcounters

From: Cyrill Gorcunov
Date: Wed Sep 15 2010 - 15:34:43 EST


On Wed, Sep 15, 2010 at 08:44:24PM +0200, Robert Richter wrote:
...
>
> Do you know at which period the counters running for the following?
>
> perf record ./hackbench 10
> perf record -e cycles -e instructions -e cache-references \
> -e cache-misses -e branch-misses -a -- <cmd>
>
> I couldn't find something about this in the man page.
>

It's on top of tools/perf/builtin-record.c so by default they
should be sampled with frequency 1KHz. Frederic or Peter knows
for sure ;)

-- Cyrill
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