Messages in this thread | | | Date | Thu, 24 May 2012 10:00:15 +0200 | Subject | Re: [PATCH] perf, x86: Make cycles:p working on SNB | From | Stephane Eranian <> |
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On Thu, May 24, 2012 at 9:57 AM, Peter Zijlstra <peterz@infradead.org> wrote: > On Thu, 2012-05-24 at 09:52 +0200, Peter Zijlstra wrote: >> >> OK, so how about I queue the below and if the u-code updates gets >> released before this hits Linus' tree we'll make it all go away ;-) >> > Also, I suspect the u-code update might make INST_RETIRED.ANY_P > available on SNB again voiding the need to use a different encoding. But > we'll cross that bridge when we'll get to it.
The PREC_DIST is by design, it is not a work-around of any sort. It is an attempt at getting a better distribution of samples when sampling with inst_retired.
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