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From: Christoph Lameter <cl@linux.com>
To: Shan Wei <shanwei88@gmail.com>
Cc: rostedt@goodmis.org, fweisbec@gmail.com, mingo@redhat.com,
	Kernel-Maillist <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] trace: use __this_cpu_inc/dec operation instead of __get_cpu_var
Date: Mon, 19 Nov 2012 21:34:57 +0000	[thread overview]
Message-ID: <0000013b1a987395-2afa8715-e3f8-4bd1-8f56-6a8073da757b-000000@email.amazonses.com> (raw)
In-Reply-To: <50A9C1BD.1060308@gmail.com>

On Mon, 19 Nov 2012, Shan Wei wrote:

> __this_cpu_inc_return() or __this_cpu_dec generates a single instruction,
> which is faster than __get_cpu_var operation.

Reviewed-by: Christoph Lameter <cl@linux.com>

  reply	other threads:[~2012-11-19 21:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-19  5:21 [PATCH] trace: use __this_cpu_inc/dec operation instead of __get_cpu_var Shan Wei
2012-11-19 21:34 ` Christoph Lameter [this message]
2012-11-30  6:37 ` Shan Wei
2013-02-03 19:18 ` [tip:perf/core] tracing: Use __this_cpu_inc/ dec " tip-bot for Shan Wei

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