linux-kernel - Re: [Resend][PATCH V3] trace,x86: add x86 irq vector tracepoints

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Message-ID: <50500D04.6030907@zytor.com>
Date:	Tue, 11 Sep 2012 21:18:12 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Seiji Aguchi <seiji.aguchi@....com>
CC:	"Thomas Gleixner (tglx@...utronix.de)" <tglx@...utronix.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"rostedt@...dmis.org" <rostedt@...dmis.org>,
	"'mingo@...e.hu' (mingo@...e.hu)" <mingo@...e.hu>,
	"x86@...nel.org" <x86@...nel.org>,
	"dle-develop@...ts.sourceforge.net" 
	<dle-develop@...ts.sourceforge.net>,
	Satoru Moriya <satoru.moriya@....com>
Subject: Re: [Resend][PATCH V3] trace,x86: add x86 irq vector tracepoints

On 09/11/2012 05:00 PM, Seiji Aguchi wrote:
> Thomas,
>
> Please review my patch as we talked in Plumbers.
>

Is there any measurable latency added here?  These are some of the most 
performance- (or at least latency-)critical paths in the kernel.

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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