Skip site navigation (1)Skip section navigation (2)
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>

next in thread | previous in thread | raw e-mail | index | archive | help
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



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20041118.095348.103081513.imp>