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Date:      Sun, 26 Dec 2004 17:48:03 +0100
From:      Christian Weisgerber <naddy@mips.inka.de>
To:        Scott Long <scottl@freebsd.org>
Cc:        Robert Watson <rwatson@freebsd.org>
Subject:   Re: 5.3-STABLE/alpha: re(4) slowdown
Message-ID:  <20041226164803.GA905@kemoauc.mips.inka.de>
In-Reply-To: <41CB5EF6.8030704@freebsd.org>
References:  <cqdegv$1na$1@kemoauc.mips.inka.de> <Pine.NEB.3.96L.1041223102643.89131D-100000@fledge.watson.org> <20041223200429.GA3869@kemoauc.mips.inka.de> <41CB5EF6.8030704@freebsd.org>

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Scott Long:

> I suspect that the buffers are being bounced all over the place in the
> if_re driver.  Can you send me the output of 'sysctl hw.busdma' after
> the system has been under load?

sysctl: unknown oid 'hw.busdma'

Strangely enough, I'm running the affected Dec 22 kernel at the
moment, but the problem has disappeared.  netperf shows the normal
~145Mbit/s for TCP_STREAM.

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de



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