linux-kernel - Re: [RESEND][PATCH] mm: vmstats: tlb flush counters

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Message-ID: <51E95932.5030902@sr71.net>
Date:	Fri, 19 Jul 2013 08:20:18 -0700
From:	Dave Hansen <dave@...1.net>
To:	Raghavendra KT <raghavendra.kt.linux@...il.com>
CC:	linux-kernel@...r.kernel.org, x86@...nel.org, linux-mm@...ck.org,
	Raghavendra KT <raghavendra.kt@...ux.vnet.ibm.com>
Subject: Re: [RESEND][PATCH] mm: vmstats: tlb flush counters

On 07/19/2013 04:38 AM, Raghavendra KT wrote:
> While measuring non - PLE performance, one of the bottleneck, I am seeing is
> flush tlbs.
> perf had helped in alaysing a bit there, but this patch would help
> in precise calculation. It will aslo help in tuning the PLE window
> experiments (larger PLE window
> would affect remote flush TLBs)

Interesting.  What workload is that?  I've been having problems finding
workloads that are too consumed with TLB flushes.


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