From: Peter Zijlstra <peterz@infradead.org>
To: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-kernel@vger.kernel.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH] perfcounters: Make s/w counters in a group only count when group is on
Date: Fri, 13 Mar 2009 14:04:00 +0100 [thread overview]
Message-ID: <1236949440.5188.709.camel@laptop> (raw)
In-Reply-To: <1236948283.22447.36.camel@twins>
On Fri, 2009-03-13 at 13:44 +0100, Peter Zijlstra wrote:
> The same for task migration, most migrations happen when they are in
> fact running, so there too we can account the migration either before we
> rip it off the src cpu, or after we place it on the dst cpu.
Right, I got confused between being on the cpu and having ->state = R.
Migrations are the odd one out indeed, but I'd rather fudge a little
with the migration counter itself than have this weird asymmetry.
next prev parent reply other threads:[~2009-03-13 13:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-13 1:59 Paul Mackerras
2009-03-13 10:23 ` Peter Zijlstra
2009-03-13 12:23 ` Paul Mackerras
2009-03-13 12:44 ` Peter Zijlstra
2009-03-13 13:04 ` Peter Zijlstra [this message]
2009-03-13 13:13 ` Ingo Molnar
2009-03-13 23:43 ` Paul Mackerras
2009-03-13 22:41 ` Paul Mackerras
2009-03-14 11:51 ` Ingo Molnar
2009-03-16 9:56 ` Peter Zijlstra
2009-03-16 10:33 ` Paul Mackerras
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