From: Benjamin LaHaise <bcrl@redhat.com>
To: Eric Whiting <ewhiting@amis.com>
Cc: canon@pookie.nersc.gov,
Trond Myklebust <trond.myklebust@fys.uio.no>,
"nfs@lists.sourceforge.net" <nfs@lists.sourceforge.net>
Subject: Re: 2.4.20rc1 NFS V3 UDP client problems
Date: Thu, 14 Nov 2002 18:11:49 -0500 [thread overview]
Message-ID: <20021114181149.J20258@redhat.com> (raw)
In-Reply-To: <3DD42E26.A603AD36@amis.com>; from ewhiting@amis.com on Thu, Nov 14, 2002 at 04:13:42PM -0700
On Thu, Nov 14, 2002 at 04:13:42PM -0700, Eric Whiting wrote:
> I tried various MTU values headed gradually towards 9000. I found that a
> MTUs between 1500 and 7500 give me the expected performance. MTU values
> of anything much more than that causes problems given my setup.
Which NIC? Some chipsets (like ns83820) only have an 8KB TX fifo and end
up doing two passes over the data for larger packet sizes. Also, running
gige with a standard 32bit/33MHz bus is pretty close to the limits.
-ben
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next prev parent reply other threads:[~2002-11-14 23:11 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-11-14 17:37 2.4.20rc1 NFS V3 UDP client problems Eric Whiting
2002-11-14 18:12 ` Eric Whiting
2002-11-14 19:47 ` Trond Myklebust
2002-11-14 20:33 ` canon
2002-11-14 23:13 ` Eric Whiting
2002-11-14 23:11 ` Benjamin LaHaise [this message]
2002-11-14 23:23 ` Eric Whiting
2002-11-14 23:23 ` Benjamin LaHaise
2002-11-18 18:59 ` 2.4.20rc1 NFS V3 UDP client problems -- (not a problem now) Eric Whiting
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