Message-ID: <52CEFBFD.3080800@redhat.com>
Date: Thu, 09 Jan 2014 14:43:57 -0500
From: Rik van Riel <riel@redhat.com>
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To: Mel Gorman <mgorman@suse.de>, Alex Shi <alex.shi@linaro.org>,
        Ingo Molnar <mingo@kernel.org>
CC: Linus Torvalds <torvalds@linux-foundation.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Fengguang Wu <fengguang.wu@intel.com>, H Peter Anvin <hpa@zytor.com>,
        Linux-X86 <x86@kernel.org>, Linux-MM <linux-mm@kvack.org>,
        LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 1/5] x86: mm: Account for TLB flushes only when debugging
References: <1389278098-27154-1-git-send-email-mgorman@suse.de> <1389278098-27154-2-git-send-email-mgorman@suse.de>
In-Reply-To: <1389278098-27154-2-git-send-email-mgorman@suse.de>
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On 01/09/2014 09:34 AM, Mel Gorman wrote:
> Bisection between 3.11 and 3.12 fingered commit 9824cf97 (mm: vmstats:
> tlb flush counters).  The counters are undeniably useful but how often
> do we really need to debug TLB flush related issues? It does not justify
> taking the penalty everywhere so make it a debugging option.
>
> Signed-off-by: Mel Gorman <mgorman@suse.de>

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

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