topic Re: gauging if nfs is slow ... in Operating System - Linux

gauging if nfs is slow ...

K.C. Chan — Thu, 03 Mar 2005 10:19:11 GMT

Does any know what tools (nfsstat) and how to interpret nfs statistics? the reason I am asking is that I have a suspicion that one of the custom process may be bottlenecking on an nfs mount. Thanks.

Re: gauging if nfs is slow ...

Dr. Sven Denninghoff — Mon, 07 Mar 2005 17:34:16 GMT

Hi,

read this first:

http://www.usenix.org/events/samples/submit/abstract.html

you can google for nfstrace and find it,there are a lot of links.

You could also try this:

http://nfswatch.sourceforge.net/

Hope that helps.
Regards

Re: gauging if nfs is slow ...

Dave Falloon — Tue, 08 Mar 2005 11:23:32 GMT

K.C. you could dd from dev random into a file on the nfs drive and time it, use something like this :

time dd if=/dev/zero of=/mnt/test bs=16k count=16k

There are more examples of performance tuning and testing found here:

http://www.metaconsultancy.com/whitepapers/nfs.htm

and here:

http://nfs.sourceforge.net/

--Dave

Re: gauging if nfs is slow ...

K.C. Chan — Thu, 10 Mar 2005 10:20:11 GMT

Thanks.