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From: jamal <hadi@cyberus.ca>
To: Andrew Morton <akpm@digeo.com>
Cc: "David S. Miller" <davem@redhat.com>, <manfred@colorfullife.com>,
	<netdev@oss.sgi.com>, <linux-kernel@vger.kernel.org>
Subject: Re: Info: NAPI performance at "low" loads
Date: Tue, 17 Sep 2002 20:57:58 -0400 (EDT)	[thread overview]
Message-ID: <Pine.GSO.4.30.0209172053360.3686-100000@shell.cyberus.ca> (raw)
In-Reply-To: <3D87A59C.410FFE3E@digeo.com>



Manfred, could you please turn MMIO (you can select it
via kernel config) and see what the new difference looks like?

I am not so sure with that 6% difference there is no other bug lurking
there; 6% seems too large for an extra two PCI transactions per packet.
If someone could test a different NIC this would be great.
Actually what would be even better is to go something like 20kpps,
50kpps, 80 kpps, 100kpps and 140 kpps and see what we get.

cheers,
jamal


  reply	other threads:[~2002-09-18  1:00 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-17 19:53 Info: NAPI performance at "low" loads Manfred Spraul
2002-09-17 20:59 ` David S. Miller
2002-09-17 21:32   ` Andrew Morton
2002-09-17 21:26     ` David S. Miller
2002-09-17 21:45       ` Andrew Morton
2002-09-17 21:39         ` David S. Miller
2002-09-17 21:54           ` Jeff Garzik
2002-09-17 21:49             ` David S. Miller
2002-09-18  2:11               ` Jeff Garzik
2002-09-18  2:06                 ` David S. Miller
2002-09-18  2:36                   ` Jeff Garzik
2002-09-17 21:58           ` Andrew Morton
2002-09-18  0:57             ` jamal [this message]
2002-09-18  1:00               ` David S. Miller
2002-09-18  2:16                 ` Andrew Morton
2002-09-18 17:27                 ` Eric W. Biederman
2002-09-18 17:50                   ` Alan Cox
2002-09-19 14:58                     ` Eric W. Biederman
2002-09-18 20:23                   ` David S. Miller
2002-09-18 20:43                     ` Alan Cox
2002-09-18 20:46                       ` David S. Miller
2002-09-18 21:15                         ` Alan Cox
2002-09-18 21:22                           ` David S. Miller
2002-09-19 15:03                             ` Eric W. Biederman
2002-09-19 15:53                               ` Alan Cox

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