Re: NFS read performance ugliness

Matthias Urlichs (smurf@noris.de)
Tue, 3 Nov 1998 11:17:37 +0100


Hi,

Zlatko Calusic:
>
> -------Sequential Output-------- ---Sequential Input-- --Random--
> -Per Char- --Block--- -Rewrite-- -Per Char- --Block--- --Seeks---
> Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec %CPU
> 30 72 1.2 86 0.9 82 0.6 948 15.0 1050 6.9 68.6 2.6
>
> Writes are so slow that NFS is practically unusable. Too bad, cause I
> have lots of unused disk space on Suns, around here.
>
Duh. That looks ugly. A packet trace (on the Sun, preferably) would be
helpful. Maybe something on your network can't deal with fragmented
packets (back-to-back) so well.
>
> Is there any workaround?
>
Yeah. Download Redhat's Linux for Sparc. ;-)

Do the Suns, among themselves, use NFSv3?

-- 
Matthias Urlichs  |  noris network GmbH   |   smurf@noris.de  |  ICQ: 20193661
The quote was selected randomly. Really.    |      http://www.noris.de/~smurf/
-- 
Hacking's just another word for nothing left to kludge.

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