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Date: Fri, 19 Jul 2013 08:20:18 -0700
From: Dave Hansen <dave@sr71.net>
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Subject: Re: [RESEND][PATCH] mm: vmstats: tlb flush counters
References: <20130716234438.C792C316@viggo.jf.intel.com> <CAC4Lta1mHixqfRSJKpydH3X9M_nQPCY3QSD86Tm=cnQ+KxpGYw@mail.gmail.com>
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To: Raghavendra KT <raghavendra.kt.linux@gmail.com>
Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-mm@kvack.org, Raghavendra KT <raghavendra.kt@linux.vnet.ibm.com>

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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