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Date:      Tue, 8 Jan 2002 21:08:19 -0600
From:      Doug Poland <doug@polands.org>
To:        Bill Moran <wmoran@potentialtech.com>
Cc:        questions@freebsd.org
Subject:   Re: Impoving NFS performance
Message-ID:  <20020108210819.A5558@polands.org>
In-Reply-To: <02010818414501.05084@proxy.the-i-pa.com>
References:  <02010818414501.05084@proxy.the-i-pa.com>

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On Tue, Jan 08, 2002 at 06:41:45PM -0500, Bill Moran wrote:
> Ran some tests today to try to determine where some bottlenecks are occurring
> in a recently installed WAN and found something rather disturbing.
> In tests, NFS is anywhere from 4 to 20 times slower than SMB or FTP file transfer.
> FTP = ~80k/sec
> SMB = ~60k/sec
> NFS = ~25k/sec (although one test showed 2.5k/sec - ugh!)
> Fellow I work with claims that this is just the way NFS is and that we should abandon
> it for other file-sharing methods.
> Anyone have any light to shed on this? Is NFS inherently slower than SMB and other
> protocols? If no, what can be done to speed things up?
> 
Here's some options I use after some research:

-o nfsv3,intr,rdirplus,-r=32768,-w=32768

I've never measured the performance against other protocols but this gave me
acceptable performance on a small LAN.  YMMV.  Never did figure out how to get
this to work via fstab.  I've been mounting remote exports via shell script in
/usr/local/etc/rc.d.  If you use these and can get the mounts to work via fstab,
I'd appreciate some guidance.

-- 
Regards,
Doug

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