topic Re: NFS performance testing ! in Operating System - HP-UX

NFS performance testing !

Bugs_Bnny — Mon, 14 Apr 2003 21:33:51 GMT

Hi Guys,

Could somebody guide me on measuring NFS performance on HPUX. I need to evaluate and document performance on NFS. Currently i am using nfsstat...but it is not very clear. If anybody can give me any insight on any other ideas/tools/utils ..etc, it will be of great help to me.
Thanks,
Bgs_bnny

Re: NFS performance testing !

James Murtagh — Mon, 14 Apr 2003 21:46:53 GMT

Hi,

This document should be your first port of call:

http://www.docs.hp.com/hpux/onlinedocs/1435/NFSPerformanceTuninginHP-UX11.0and11iSystems.pdf

Regards,

James.

Re: NFS performance testing !

Michael Steele_2 — Mon, 14 Apr 2003 21:54:49 GMT

What's Up Doc?

Make a big file and call it 500meg:

prealloc /tmp/500meg 5000000

Copy /tmp/500meg in and out of your NFS file system from the client side and note these stats:

nfsstat -rc (* timeout and retrans *)

netstat -m (* number of requests for memory denied *)

vmstat -n 5 5 (* %idle = 0 or low? *)

nfsstat -s (* readlink and lookup calls nearly equal? 'getattr > 60% then not caching enough *)

nestat -s -p udp (* overflows high ? Not enough nfsd daemons; start more in nfsconf *)

Re: NFS performance testing !

Bill Hassell — Mon, 14 Apr 2003 23:25:00 GMT

NFS performance is very difficult to characterize as it is a stateless connection and can be heavily affected by the LAN topology. And there are a number of tunable items that may be required for best performance. I would certainly not depend on a single performance figure except perhaps on a dedicated LAN connection.

This book is invaluable for NFS:

"Optimizing NFS Performance: Tuning and Troubleshooting NFS on HP-UX Systems" by David Olker

Re: NFS performance testing !

Orlando-Torres — Wed, 08 Nov 2017 16:51:11 GMT

Hello,

I'm trying so hard to find this book "Optimizing NFS Performance: Tuning and Troubleshooting NFS on HP-UX Systems" by David Olker

in PDF format, or any other document about performance NFS from Dave Olker, but no find anything.

Can someone please help me with this old 2002 pdf, to tune fine my system.

Thanks in advance.

Re: NFS performance testing !

Dave Olker — Thu, 09 Nov 2017 05:13:35 GMT

Hi Orlando.

I know that guy. I'll talk to him about getting you a copy. ;)

Send me an email - ~~Private Info Erased~~ - and I'll send you the PDF version.

Dave

Re: NFS performance testing !

Orlando-Torres — Wed, 08 Nov 2017 17:11:09 GMT

Thank you Dave.