linux-kernel - Re: [PATCH 1/4] x86, mm: Trace when an IPI is about to be sent

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Message-ID: <552FDA78.7040505@redhat.com>
Date:	Thu, 16 Apr 2015 11:51:20 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Mel Gorman <mgorman@...e.de>, Linux-MM <linux-mm@...ck.org>
CC:	Hugh Dickins <hughd@...gle.com>, Minchan Kim <minchan@...nel.org>,
	Dave Hansen <dave.hansen@...el.com>,
	Andi Kleen <andi@...stfloor.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/4] x86, mm: Trace when an IPI is about to be sent

On 04/16/2015 06:22 AM, Mel Gorman wrote:
> It is easy to trace when an IPI is received to flush a TLB but harder to
> detect what event sent it. This patch makes it easy to identify the source
> of IPIs being transmitted for TLB flushes on x86.
> 
> Signed-off-by: Mel Gorman <mgorman@...e.de>

Reviewed-by: Rik van Riel <riel@...hat.com>

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