From: Stephen Hemminger <shemminger@vyatta.com>
To: David Miller <davem@davemloft.net>
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH] net: increase receive packet quantum
Date: Mon, 3 Nov 2008 21:25:21 -0800 [thread overview]
Message-ID: <20081103212521.15e12168@extreme> (raw)
In-Reply-To: <20081103.172428.154364341.davem@davemloft.net>
On Mon, 03 Nov 2008 17:24:28 -0800 (PST)
David Miller <davem@davemloft.net> wrote:
> From: Stephen Hemminger <shemminger@vyatta.com>
> Date: Mon, 3 Nov 2008 13:03:03 -0800
>
> > This patch gets about 1.25% back on tbench regression.
> >
> > My change to NAPI for multiqueue support changed the time limit on
> > network receive processing. Under sustained loads like tbench, this
> > can cause the receiver to reschedule prematurely.
> >
> > Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
>
> I think I'm the guilty party that made that change to your
> NAPI patches.
>
> I'll apply this to net-next-2.6, thanks Stephen.
Maybe you want it as part of the tbench regression recovery in 2.6.28?
it seems mostly harmless.
next prev parent reply other threads:[~2008-11-04 5:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-03 21:03 [PATCH] net: increase receive packet quantum Stephen Hemminger
2008-11-04 1:24 ` David Miller
2008-11-04 5:25 ` Stephen Hemminger [this message]
2008-11-04 22:48 ` David Miller
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