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Date: Tue, 15 Jan 2008 15:25:30 +0100
From: Laurent Frigault <lfrigault@agneau.org>
To: Sepherosa Ziehau <sepherosa@gmail.com>
Message-ID: <20080115142530.GA25951@obelix.bergerie.agneau.org>
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Cc: freebsd-net@freebsd.org, remko@freebsd.org
Subject: Re: kern/119361: [bge] bge(4) transmit performance problem
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On Tue, Jan 15, 2008 at 08:56:36AM +0800, Sepherosa Ziehau wrote:
> > > > http://www.freebsd.org/cgi/query-pr.cgi?pr=119361
> > >
> > > Have you tested polling(4)?  If polling could give you better TX
> > > performance, you should consider raise:
> > > in bge_attach()
> > > sc->bge_tx_max_coal_bds = 10;
> > > to 64 or more
> >
> > I tested with polling and did not see any changes for the transmit
> > performance problem.
> >
> > I just re-test with polling AND bge_tx_max_coal_bds raised to 64 => no
> > changes.
> 
> Please test following patch:
> http://people.freebsd.org/~sephe/if_bge.c.6.diff

I apply your patch and re-run the test (without and with polling)
=> no changes.

Best Regards,
-- 
Laurent Frigault | <url:http://www.agneau.org/>
UNIX _IS_ user friendly. It's just selective about who its friends are.