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Date:	Mon, 7 Apr 2008 23:37:43 -0700
From:	"Paul Menage" <menage@...gle.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	"Pavel Emelianov" <xemul@...nvz.org>,
	"Hugh Dickins" <hugh@...itas.com>,
	"Sudhir Kumar" <skumar@...ux.vnet.ibm.com>,
	"YAMAMOTO Takashi" <yamamoto@...inux.co.jp>,
	linux-kernel@...r.kernel.org, taka@...inux.co.jp,
	linux-mm@...ck.org, "David Rientjes" <rientjes@...gle.com>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"KAMEZAWA Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>
Subject: Re: [-mm] Add an owner to the mm_struct (v8)

On Sat, Apr 5, 2008 at 10:38 PM, Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
>  >
>  > How long does the test run for? How many threads does each client have?
>
>  The test on each client side runs for about 10 seconds. I saw the client create
>  up to 411 threads.
>

I'm not convinced that an application that creates 400 threads and
exits in 10 seconds is particular representative of a high-performance
application.

But I agree that it's an example of something it may be worth trying
to optimize for.

You mention that you saw tgid exits - what order did the individual
threads exit in? If we threw the mm to the last thread in the thread
group rather than the first, would that help?

Paul
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