From: "Vincent Sweeney" <v.sweeney@barrysworld.com>
To: <linux-kernel@vger.kernel.org>
Subject: Re: PROBLEM: high system usage / poor SMP network performance
Date: Sun, 27 Jan 2002 23:08:58 -0000 [thread overview]
Message-ID: <00b901c1a787$99dee5f0$0201010a@frodo> (raw)
In-Reply-To: <E16UyCO-0002zE-00@the-village.bc.nu>
----- Original Message -----
From: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
To: "Vincent Sweeney" <v.sweeney@barrysworld.com>
Cc: <linux-kernel@vger.kernel.org>
Sent: Sunday, January 27, 2002 10:54 PM
Subject: Re: PROBLEM: high system usage / poor SMP network performance
> > CPU0 states: 27.2% user, 62.4% system, 0.0% nice, 9.2% idle
> > CPU1 states: 28.4% user, 62.3% system, 0.0% nice, 8.1% idle
>
> The important bit here is ^^^^^^^^ that one. Something is causing
> horrendous lock contention it appears. Is the e100 driver optimised for
SMP
> yet ? Do you get better numbers if you use the eepro100 driver ?
It's been a while since I tested with the eepro100 drivers (I switch to e100
about 2.4.4 due to some unrelated problems) so I cannot give a comparision
just at present. I will test the eepro100 driver tomorrow on one of the
servers and post results then.
I will also try Andrew Morton's profiling tips on another box with the e100
driver.
Vince.
next prev parent reply other threads:[~2002-01-27 23:09 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-27 22:23 PROBLEM: high system usage / poor SMP network performance Vincent Sweeney
2002-01-27 22:42 ` Andrew Morton
2002-01-27 22:54 ` Alan Cox
2002-01-27 22:52 ` arjan
2002-01-27 23:08 ` Vincent Sweeney [this message]
2002-01-28 19:34 ` Vincent Sweeney
2002-01-28 19:40 ` Rik van Riel
2002-01-29 16:32 ` Vincent Sweeney
-- strict thread matches above, loose matches on Subject: below --
2002-01-29 18:00 Dan Kegel
2002-01-29 20:09 ` Vincent Sweeney
2002-01-31 5:24 ` Dan Kegel
[not found] ` <001d01c1aa8e$2e067e60$0201010a@frodo>
2002-02-03 8:03 ` Dan Kegel
2002-02-03 8:36 ` Andrew Morton
2002-02-12 18:48 ` Vincent Sweeney
2002-02-03 19:22 ` Kev
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