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From: Breno Leitao <leitao@linux.vnet.ibm.com>
To: Denys Fedoryshchenko <denys@visp.net.lb>
Cc: netdev@vger.kernel.org
Subject: Re: e1000 performance issue in 4 simultaneous links
Date: Fri, 11 Jan 2008 16:45:47 -0200	[thread overview]
Message-ID: <1200077147.9349.37.camel@cafe> (raw)
In-Reply-To: <20080111173654.M91690@visp.net.lb>

Hello Denys, 
   I've installed sysstat (good tools!) and the result is very similar
to the one which appears at top, take a look:
   13:34:23     CPU   %user   %nice    %sys %iowait    %irq   %soft  %steal   %idle    intr/s
13:34:24     all    0.00    0.00    2.72    0.00    0.25   12.13    0.99   83.91  16267.33
13:34:24       0    0.00    0.00   21.78    0.00    0.00    0.00    7.92   70.30     40.59
13:34:24       1    0.00    0.00    0.00    0.00    0.99   24.75    0.00   74.26   4025.74
13:34:24       2    0.00    0.00    0.00    0.00    0.99   24.75    0.00   74.26   4036.63
13:34:24       3    0.00    0.00    0.00    0.00    0.99   21.78    0.00   77.23   4032.67
13:34:24       4    0.00    0.00    0.00    0.00    0.98   24.51    0.00   74.51   4034.65
13:34:24       5    0.00    0.00    0.00    0.00    0.00    0.00    0.00  100.00     30.69
13:34:24       6    0.00    0.00    0.00    0.00    0.00    0.00    0.00  100.00     33.66
13:34:24       7    0.00    0.00    0.00    0.00    0.00    0.00    0.00  100.00     32.67

So, we can assure that the IRQs are not being balanced, and that there
isn't any processor overload.

Thanks!


On Fri, 2008-01-11 at 19:36 +0200, Denys Fedoryshchenko wrote:
> Maybe good idea to use sysstat ?
> 
> http://perso.wanadoo.fr/sebastien.godard/


  reply	other threads:[~2008-01-11 18:45 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-10 16:17 e1000 performance issue in 4 simultaneous links Breno Leitao
2008-01-10 16:36 ` Ben Hutchings
2008-01-10 16:51   ` Jeba Anandhan
2008-01-10 17:31   ` Breno Leitao
2008-01-10 18:18     ` Kok, Auke
2008-01-10 18:37     ` Rick Jones
2008-01-10 18:26 ` Rick Jones
2008-01-10 20:52 ` Brandeburg, Jesse
2008-01-11  1:28   ` David Miller
2008-01-11 11:09     ` Benny Amorsen
2008-01-12  1:41       ` David Miller
2008-01-12  5:13         ` Denys Fedoryshchenko
2008-01-30 16:57           ` Kok, Auke
2008-01-11 16:20   ` Breno Leitao
2008-01-11 16:48     ` Eric Dumazet
2008-01-11 17:36       ` Denys Fedoryshchenko
2008-01-11 18:45         ` Breno Leitao [this message]
2008-01-11 18:19       ` Breno Leitao
2008-01-11 18:48         ` Rick Jones

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