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Re: r8169: page allocation failure

To: Jan Killius <jkillius@xxxxxxxx>
Subject: Re: r8169: page allocation failure
From: Francois Romieu <romieu@xxxxxxxxxxxxx>
Date: Sun, 17 Oct 2004 12:39:18 +0200
Cc: netdev@xxxxxxxxxxx, davem@xxxxxxxxxxxxx, jgarzik@xxxxxxxxx
In-reply-to: <200410170940.28350.jkillius@arcor.de>
References: <200410162004.17573.jkillius@arcor.de> <200410162323.01006.jkillius@arcor.de> <20041016214903.GC21849@electric-eye.fr.zoreil.com> <200410170940.28350.jkillius@arcor.de>
Sender: netdev-bounce@xxxxxxxxxxx
User-agent: Mutt/1.4.1i
Jan Killius <jkillius@xxxxxxxx> :
[scp test]
> without TSO(1628MB  11.1MB/s   02:27):
>  1  0 166388  27716    332  97264    0    0 12300     0 12323  7616 37 45  0 
> 18
>  1  0 166388  26108    332  99804    0    0 12880     4 12727  7975 39 52  0 9
>  1  0 166388  24612    336 102796    0    0 12720     0 12590  7900 38 48  0 
> 15
[...]
> with TSO(1628MB  12.8MB/s   02:07):
>  1  0 166340  27672    376 120056    0    0 13740     0 11879  2041 36 58  6  > 0
>  1  0 166340  25352    384 122288    0    0 13968     4 12148  2072 41 55  3  
> 1
>  1  0 166340  22924    376 124692    0    0 14028     0 12174  2050 36 60  4  > 0

It could be done again now that M. Xu fixed the issue but the numbers seem
consistent with the improvement I see here. TSO saves 5~8% of the cpu for
this kind of setup.

Thanks for the testing.

--
Ueimor

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