Re: perf: counter and event question
From: Peter Zijlstra
Date: Mon Dec 28 2009 - 06:26:56 EST
On Mon, 2009-12-28 at 12:16 +0100, Tim Blechmann wrote:
> like it is impossible to sample instructions with a period of 1?
Pretty much, imagine the cpu getting a trap every cycle.
In order to avoid the machine grinding to a halt, we've implemented a
throttle which defaults to 100k samples/s, anything over that will be
discarted.
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