Re: [PATCH -tip] perf, x86: fix unknown NMIs on a Pentium4 box

From: David Ahern
Date: Thu Apr 14 2011 - 15:36:10 EST

On 04/14/11 12:19, Cyrill Gorcunov wrote:
> On 04/14/2011 10:12 PM, Shaun Ruffell wrote:

> Btw, Shaun, perf top wont work on P4 for a while (since it needs nmi-watchdog
> to be disabled).

perf-top defaults to H/W cycles event. Just need to force it to S/W
events (the fallback for systems that do not support cycles event):
perf top -e cpu-clock

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