Re: [PATCH] perf_events: fix bogus warn_on(_once) in perf_prepare_sample()

[Stephane Eranian]

On Thu, Apr 8, 2010 at 11:24 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> On Thu, 2010-04-08 at 23:18 +0200, Stephane Eranian wrote:
>> I am not sure I understand what you mean by buffered PEBS. Are you talking
>> about using PEBS buffer bigger than one entry?
>
> Yep.
>
>> If so, how can you do:
>> Â - the LBR based fixups for multiple samples (on PMU interrupt)
>
> Not, so it would be the offset on.
>
Not sure I understand what you mean here.

>> Â - attribute PID/TID in system-wide mode
>
> flush on context switches.
>
cost?
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