linux-kernel - Re: RSS controller v2 Test results (lmbench )

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Message-ID: <464D1599.1000506@redhat.com>
Date:	Thu, 17 May 2007 22:55:21 -0400
From:	Rik van Riel <riel@...hat.com>
To:	balbir@...ux.vnet.ibm.com
CC:	Pavel Emelianov <xemul@...ru>, Paul Menage <menage@...gle.com>,
	Kirill Korotaev <dev@...ru>, devel@...nvz.org,
	Linux Containers <containers@...ts.osdl.org>,
	linux kernel mailing list <linux-kernel@...r.kernel.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Herbert Poetzl <herbert@...hfloor.at>
Subject: Re: RSS controller v2 Test results (lmbench )

Balbir Singh wrote:

> A meaningful container size does not hamper performance. I am in the process
> of getting more results (with varying container sizes). Please let me know
> what you think of the results? Would you like to see different benchmarks/
> tests/configuration results?

AIM7 results might be interesting, especially when run to crossover.

OTOH, AIM7 can make the current VM explode spectacularly :)

I saw it swap out 1.4GB of memory in one run, on my 2GB memory test
system.  That's right, it swapped out almost 75% of memory.

Presumably all the AIM7 processes got stuck in the pageout code
simultaneously and all decided they needed to swap some pages out.
However, the shell got stuck too so I could not get sysrq output
on time.

I am trying out a little VM patch to fix that now, carefully watching
vmstat output.  Should be fun...

-- 
Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is.  Each group
calls the other unpatriotic.
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