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From: "David S. Miller" <davem@davemloft.net>
To: Andi Kleen <ak@suse.de>
Cc: ak@suse.de, anton@samba.org, netdev@oss.sgi.com
Subject: Re: bad TSO performance in 2.6.9-rc2-BK
Date: Wed, 22 Sep 2004 13:28:16 -0700	[thread overview]
Message-ID: <20040922132816.1553292c.davem@davemloft.net> (raw)
In-Reply-To: <20040922195515.GA2619@wotan.suse.de>

On Wed, 22 Sep 2004 21:55:15 +0200
Andi Kleen <ak@suse.de> wrote:

> I must add that this is a CSA e1000 (directly integrated into
> the chipset and doesn't use PCI) and TSO doesn't seem to be 
> bring any advantage. On 2.6.5 the performance is the same
> with both TSO on or off.

That's expected.  It decreases the cpu and bus load, but if
those are capable of running the card full tilt already TSO
buys you nothing except spare cpu and memory cycles for
other work on your system.

  parent reply	other threads:[~2004-09-22 20:28 UTC|newest]

Thread overview: 97+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-20  6:30 bad TSO performance in 2.6.9-rc2-BK Anton Blanchard
2004-09-20 15:54 ` Nivedita Singhvi
2004-09-21 15:55   ` Anton Blanchard
2004-09-20 20:30 ` Andi Kleen
2004-09-21 22:58   ` David S. Miller
2004-09-22 14:00     ` Andi Kleen
2004-09-22 18:12       ` David S. Miller
2004-09-22 19:55         ` Andi Kleen
2004-09-22 20:07           ` Nivedita Singhvi
2004-09-22 20:30             ` David S. Miller
2004-09-22 20:56               ` Nivedita Singhvi
2004-09-22 21:56               ` Andi Kleen
2004-09-22 22:04                 ` David S. Miller
2004-09-22 20:12           ` Andrew Grover
2004-09-22 20:39             ` David S. Miller
2004-09-22 22:06               ` Andi Kleen
2004-09-22 22:25                 ` David S. Miller
2004-09-22 22:47                   ` Andi Kleen
2004-09-22 22:50                     ` David S. Miller
2004-09-23 23:11                     ` David S. Miller
2004-09-23 23:41                       ` Herbert Xu
2004-09-23 23:41                         ` David S. Miller
2004-09-24  0:12                           ` Herbert Xu
2004-09-24  0:40                             ` Herbert Xu
2004-09-24  1:07                               ` Herbert Xu
2004-09-24  1:17                                 ` David S. Miller
2004-09-27  1:27                           ` Herbert Xu
2004-09-27  2:50                             ` Herbert Xu
2004-09-27  4:00                               ` David S. Miller
2004-09-27  5:45                                 ` Herbert Xu
2004-09-27 19:01                                   ` David S. Miller
2004-09-27 21:32                                     ` Herbert Xu
2004-09-28 21:10                                       ` David S. Miller
2004-09-28 21:34                                         ` Andi Kleen
2004-09-28 21:53                                           ` David S. Miller
2004-09-28 22:33                                             ` Andi Kleen
2004-09-28 22:57                                               ` David S. Miller
2004-09-28 23:27                                                 ` Andi Kleen
2004-09-28 23:35                                                   ` David S. Miller
2004-09-28 23:55                                                     ` Andi Kleen
2004-09-29  0:04                                                       ` David S. Miller
2004-09-29 20:58                                                   ` John Heffner
2004-09-29 21:10                                                     ` Nivedita Singhvi
2004-09-29 21:50                                                       ` David S. Miller
2004-09-29 21:56                                                         ` Andi Kleen
2004-09-29 23:29                                                           ` David S. Miller
2004-09-29 23:51                                                             ` John Heffner
2004-09-30  0:03                                                               ` David S. Miller
2004-09-30  0:10                                                                 ` Herbert Xu
2004-10-01  0:34                                                                   ` David S. Miller
2004-10-01  1:12                                                                     ` David S. Miller
2004-10-01  3:40                                                                       ` David S. Miller
2004-10-01 10:35                                                                         ` Andi Kleen
2004-10-01 10:23                                                                       ` Andi Kleen
2004-09-30  0:10                                                               ` John Heffner
2004-09-30 17:25                                                                 ` John Heffner
2004-09-30 20:23                                                                   ` David S. Miller
2004-09-30  0:05                                                             ` Herbert Xu
2004-09-30  4:33                                                               ` David S. Miller
2004-09-30  5:47                                                                 ` Herbert Xu
2004-09-30  7:39                                                                   ` David S. Miller
2004-09-30  8:09                                                                     ` Herbert Xu
2004-09-30  9:29                                                                 ` Andi Kleen
2004-09-30 20:20                                                                   ` David S. Miller
2004-09-29  3:27                                               ` John Heffner
2004-09-29  9:01                                                 ` Andi Kleen
2004-09-29 19:56                                                   ` David S. Miller
2004-09-29 20:56                                                     ` Andi Kleen
2004-09-29 21:17                                                       ` David S. Miller
2004-09-29 21:00                                                 ` David S. Miller
2004-09-29 21:16                                                   ` Nivedita Singhvi
2004-09-29 21:22                                                     ` David S. Miller
2004-09-29 21:43                                                       ` Andi Kleen
2004-09-29 21:51                                                         ` John Heffner
2004-09-29 21:52                                                           ` David S. Miller
2004-09-24  8:30                       ` Andi Kleen
2004-09-27 22:38                       ` John Heffner
2004-09-27 23:04                         ` David S. Miller
2004-09-27 23:25                           ` Andi Kleen
2004-09-27 23:37                             ` David S. Miller
2004-09-27 23:51                               ` Andi Kleen
2004-09-28  0:15                                 ` David S. Miller
2004-09-27 23:36                           ` Herbert Xu
2004-09-28  0:13                             ` David S. Miller
2004-09-28  0:34                               ` Herbert Xu
2004-09-28  4:59                                 ` David S. Miller
2004-09-28  5:15                                   ` Herbert Xu
2004-09-28  5:58                                     ` David S. Miller
2004-09-28  6:45                                   ` Nivedita Singhvi
2004-09-28  7:20                               ` Nivedita Singhvi
2004-09-28 20:38                                 ` David S. Miller
2004-09-28  7:23                         ` Nivedita Singhvi
2004-09-28  8:23                           ` Herbert Xu
2004-09-28 12:53                           ` John Heffner
2004-09-22 20:28           ` David S. Miller [this message]
     [not found] <Pine.NEB.4.33.0409301625560.13549-100000@dexter.psc.edu>
2004-10-02  1:32 ` John Heffner
2004-10-04 20:07   ` David S. Miller

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