From: Christoph Lameter <cl@linux-foundation.org>
To: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
netdev@vger.kernel.org, Mel Gorman <mel@csn.ul.ie>,
David Miller <davem@davemloft.net>,
Lennert Buytenhek <buytenh@marvell.com>
Subject: Re: Patch for tbench regression.
Date: Mon, 29 Sep 2008 08:34:50 -0500 [thread overview]
Message-ID: <48E0D97A.8000305@linux-foundation.org> (raw)
In-Reply-To: <20080929103437.GD14943@2ka.mipt.ru>
I did some graphs of the time that each pass through the network stack takes
and from what I see we still have measurements where we get the optimal
performance with 2.6.27 that 2.6.22 does. However, the time differentials vary
much more with 2.6.27. 2.6.22 times results cluster around the minimum. 2.6.27
has periods where the time increases by around 30usec. It dips down repeatedly
to 2.6.22 performance.
next prev parent reply other threads:[~2008-09-29 13:36 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-28 21:15 Patch for tbench regression Evgeniy Polyakov
2008-09-29 3:12 ` Herbert Xu
2008-09-29 5:36 ` Evgeniy Polyakov
2008-09-29 5:40 ` Herbert Xu
2008-09-29 5:52 ` Evgeniy Polyakov
2008-09-29 6:40 ` Herbert Xu
2008-09-29 6:45 ` Evgeniy Polyakov
2008-09-29 7:02 ` Herbert Xu
2008-09-29 7:11 ` Evgeniy Polyakov
2008-09-29 7:20 ` Herbert Xu
2008-09-29 9:43 ` Herbert Xu
2008-09-29 9:51 ` Herbert Xu
2008-09-29 17:07 ` Rick Jones
2008-09-29 10:34 ` Evgeniy Polyakov
2008-09-29 13:34 ` Christoph Lameter [this message]
2008-09-29 17:01 ` Rick Jones
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