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Message-ID: <20100519091333.GL5704@nowhere> Date: Wed, 19 May 2010 11:13:35 +0200 From: Frederic Weisbecker <fweisbec@...il.com> To: Peter Zijlstra <peterz@...radead.org> Cc: mingo@...hat.com, hpa@...or.com, paulus@...ba.org, acme@...hat.com, linux-kernel@...r.kernel.org, efault@....de, rostedt@...dmis.org, tglx@...utronix.de, mingo@...e.hu, linux-tip-commits@...r.kernel.org Subject: Re: [tip:perf/core] perf/ftrace: Optimize perf/tracepoint interaction for single events On Wed, May 19, 2010 at 11:12:28AM +0200, Peter Zijlstra wrote: > On Wed, 2010-05-19 at 11:06 +0200, Frederic Weisbecker wrote: > > On Wed, May 19, 2010 at 10:58:45AM +0200, Peter Zijlstra wrote: > > > How about something like the below? > > > > > > > > > --- > > > Subject: perf, trace: Remove IRQ-disable from perf/tracepoint interaction > > > From: Peter Zijlstra <a.p.zijlstra@...llo.nl> > > > Date: Wed May 19 10:52:27 CEST 2010 > > > > > > > > > > > > Signed-off-by: Peter Zijlstra <a.p.zijlstra@...llo.nl> > > > --- > > > > > > > > Looks fine if we don't have nested irqs. > > Well, I was thinking the per-context recursion thing would sort that > out. We can have 1 event per context in-flight. Ah good point. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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