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Date: Mon, 9 Nov 2009 02:58:16 +0100
From: Frederic Weisbecker <fweisbec@gmail.com>
To: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>,
       Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>,
       Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
       linux-kernel@vger.kernel.org, zhaolei@cn.fujitsu.com,
       Li Zefan <lizf@cn.fujitsu.com>, Thomas Gleixner <tglx@linutronix.de>,
       Jason Baron <jbaron@redhat.com>
Subject: Re: [PATCH] softirq,tracing: enable to trace softirq raise latency
Message-ID: <20091109015812.GA13153@nowhere>
References: <4AF284CF.3010407@cn.fujitsu.com>
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On Thu, Nov 05, 2009 at 03:54:55PM +0800, Lai Jiangshan wrote:
> 
> Add a tracepoint for tracing when softirq action is raised.
> 
> It and the existed tracepoints complete softirq's tracepoints:
> softirq_raise, softirq_entry and softirq_exit.
> 
> And when this tracepoint is used in combination with
> the softirq_entry tracepoint we can determine
> the softirq raise latency.
> 
> Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>


Looks good!

Acked-by: Frederic Weisbecker <fweisbec@gmail.com>