Date: Thu, 18 Nov 2004 09:53:48 -0700 (MST) From: "M. Warner Losh" <imp@bsdimp.com> To: rwatson@freebsd.org Cc: freebsd-stable@freebsd.org Subject: Re: serious networking (em) performance (ggate and NFS) problem Message-ID: <20041118.095348.103081513.imp@bsdimp.com> In-Reply-To: <Pine.NEB.3.96L.1041118121834.66045B-100000@fledge.watson.org> References: <200411172357.47735.Emanuel.Strobl@gmx.net> <Pine.NEB.3.96L.1041118121834.66045B-100000@fledge.watson.org>
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In message: <Pine.NEB.3.96L.1041118121834.66045B-100000@fledge.watson.org>
Robert Watson <rwatson@freebsd.org> writes:
: (1) I'd first off check that there wasn't a serious interrupt problem on
: the box, which is often triggered by ACPI problems. Get the box to be
: as idle as possible, and then use vmstat -i or stat -vmstat to see if
: anything is spewing interrupts.
Also, make sure that you aren't sharing interrupts between
GIANT-LOCKED and non-giant-locked cards. This might be exposing bugs
in the network layer that debug.mpsafenet=0 might correct. Just
noticed that our setup here has that setup, so I'll be looking into
that area of things.
Warner
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