linux-kernel - Re: [PATCH] Add per-process flag to control thp

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Message-ID: <87wqo050fc.fsf@tassilo.jf.intel.com>
Date:	Sun, 04 Aug 2013 19:36:07 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Alex Thorlton <athorlton@....com>
Cc:	"Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mgorman@...e.de>, Rik van Riel <riel@...hat.com>,
	Johannes Weiner <hannes@...xchg.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Sedat Dilek <sedat.dilek@...il.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Dave Jones <davej@...hat.com>,
	Michael Kerrisk <mtk.manpages@...il.com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	David Howells <dhowells@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Al Viro <viro@...iv.linux.org.uk>,
	Oleg Nesterov <oleg@...hat.com>,
	Srikar Dronamraju <srikar@...ux.vnet.ibm.com>,
	Kees Cook <keescook@...omium.org>, Robin Holt <holt@....com>
Subject: Re: [PATCH] Add per-process flag to control thp

Alex Thorlton <athorlton@....com> writes:

>> What kind of workloads are you talking about?
>
> Our benchmarking team has a list of several of the SPEC OMP benchmarks
> that perform significantly better when THP is disabled. I tried to get
> the list but one of our servers is acting up and I can't get to it
> right now :/

Please try it with the vclear patches.

https://lkml.org/lkml/2012/7/20/165
et.al.

-Andi


-- 
ak@...ux.intel.com -- Speaking for myself only
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