Re: [rfc] perf p4 events aliases

From: Cyrill Gorcunov
Date: Fri Jul 08 2011 - 11:27:10 EST


On Fri, Jul 08, 2011 at 11:21:13AM -0400, Steven Rostedt wrote:
> On Fri, 2011-07-08 at 11:13 -0400, Don Zickus wrote:
> > On Thu, Jul 07, 2011 at 07:28:49PM +0400, Cyrill Gorcunov wrote:
> > > Hi Don, if you have a chance could you please check if this
> > > patch does a trick for nmi-watchdog and perf top? The idea
> > > is to use aliases as being proposed early.
> >
> > Hmm, didn't work for me. The watchdog seems to work but 'perf top' showed
> > nothing (even after 30 seconds). I tried this on Linus's latest -tip and
> > Ingo's perf/core -tip. No luck.
>
> Yeah I did the same. Without the patch, perf top works, with the patch I
> get nothing.
>

In real it's good that it didn't find alias, since there a potential dead-lock
if event become alternative and alternative then found to be busy, i'm working
on it as well ;)

Cyrill
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