linux-kernel - Re: commit 6dccd16b7c2703e8bbf8bca62b5cf248332afbe2 kills r8169 send performance

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Message-ID: <Pine.LNX.4.64.0709271832270.5849@limbo>
Date:	Thu, 27 Sep 2007 18:39:59 +0300 (EEST)
From:	Timo Jantunen <jeti@....fi>
To:	Francois Romieu <romieu@...zoreil.com>
cc:	LKML <linux-kernel@...r.kernel.org>
Subject: Re: commit 6dccd16b7c2703e8bbf8bca62b5cf248332afbe2 kills r8169 send
 performance

On Wed, 26 Sep 2007, Francois Romieu wrote:

> Apply and try each patch of the attached tarball on top of 2.6.23-git
> until the behavior changes (assuming it does).
> 
> Patch #000n applies on top of patch #000(n - 1).

I tested the series on top of -rc8 and 0005 did the trick. And if I use 
0005 only, I can get 93MB/s send and 97MB/s receive, so there is a nice 
increase on send too since .22!


iperf numbers (send/receive):

revert.0001:[  4]  0.0-10.1 sec    234 MBytes    194 Mbits/sec
revert.0001:[  5]  0.0-10.0 sec    445 MBytes    373 Mbits/sec

revert.0002:[  5]  0.0-10.0 sec    325 MBytes    272 Mbits/sec
revert.0002:[  4]  0.0-10.1 sec    969 MBytes    802 Mbits/sec

revert.0003:[  4]  0.0-10.1 sec    328 MBytes    272 Mbits/sec
revert.0003:[  5]  0.0-10.0 sec    742 MBytes    622 Mbits/sec

revert.0004:[  4]  0.0-10.2 sec    329 MBytes    271 Mbits/sec
revert.0004:[  5]  0.0-10.0 sec    759 MBytes    637 Mbits/sec

revert.0005:[  4]  0.0-10.1 sec    829 MBytes    691 Mbits/sec
revert.0005:[  5]  0.0-10.0 sec    772 MBytes    647 Mbits/sec

revert.0005-only:[  5]  0.0-10.0 sec    933 MBytes    780 Mbits/sec
revert.0005-only:[  4]  0.0-10.1 sec    970 MBytes    806 Mbits/sec



//T


> Good night.


// /
....................................Timo Jantunen  ......................
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