From: "David S. Miller" <davem@redhat.com>
To: hadi@cyberus.ca
Cc: akpm@digeo.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 18:00:14 -0700 (PDT) [thread overview]
Message-ID: <20020917.180014.07882539.davem@redhat.com> (raw)
In-Reply-To: <Pine.GSO.4.30.0209172053360.3686-100000@shell.cyberus.ca>
From: jamal <hadi@cyberus.ca>
Date: Tue, 17 Sep 2002 20:57:58 -0400 (EDT)
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.
{in,out}{b,w,l}() operations have a fixed timing, therefore his
results doesn't sound that far off.
It is also one of the reasons I suspect Andrew saw such bad results
with 3c59x, but probably that is not the only reason.
next prev parent reply other threads:[~2002-09-18 1:04 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
2002-09-18 1:00 ` David S. Miller [this message]
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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