Re: NFSv3 client for Linux-2.2.5 ready for alpha testing...

Thomas Davis (tadavis@lbl.gov)
Tue, 20 Apr 1999 18:40:29 -0700

Thomas Davis wrote:
>
> Trond Myklebust wrote:
> >
> > Doesn't the solaris server normally select a 32k rsize/wsize if you
> > don't force it to 8k? If it does, that should give better performance.
> >
>
> I have no ideas; the values are forced in via a autofs mount table
> (there are about another 40 linux machines that need the larger values).
>
> I can do a seperate mount and see what happens..
>

Ok, here's the new results:

mount command used:

mount starsu00:/data01 /test -ohard,intr

[tdavis@pdsflx16 bonnie]$ ./bonnie -d /test/b -s 1024
File '/test/b/Bonnie.11787', size: 1073741824
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 3...Seeker 1...Seeker 2...start 'em...done...done...done...
-------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
32768 1024 5180 75.6 5814 12.1 2770 7.3 6144 92.0 10308 7.9
290.3 4.7
8192 1024 5298 81.1 7138 17.2 4270 17.8 4826 70.1 9980 13.3
389.1 6.2

from /proc/mounts (mount command doesn't give you the rsize/wsize)

starsu00:/data01 /test nfs
rw,v3,rsize=32768,wsize=32768,intr,addr=starsu00 0 0

so, 32k wsize slows you down some. 32k rsize speeds it up alot though..

-- 
------------------------+--------------------------------------------------
Thomas Davis		| PDSF Project Leader
tadavis@lbl.gov		| 
(510) 486-4524		| "Only a petabyte of data this year?"


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