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- Newsgroups: comp.protocols.tcp-ip.ibmpc
- Path: sparky!uunet!spool.mu.edu!torn!mcshub!maccs!beame
- From: beame@maccs.mcmaster.ca (Carl Beame)
- Subject: Re: Awful NFS performance!
- Message-ID: <1993Jan6.035222.16729@mcshub.dcss.mcmaster.ca>
- Sender: usenet@mcshub.dcss.mcmaster.ca
- Nntp-Posting-Host: maccs.dcss.mcmaster.ca
- Organization: McMaster University, Hamilton, Ontario.
- References: <memo.842598@cix.compulink.co.uk>
- Date: Wed, 6 Jan 1993 03:52:22 GMT
- Lines: 44
-
- In article <memo.842598@cix.compulink.co.uk> shaman@cix.compulink.co.uk writes:
- >In-Reply-To: <C0C5vI.Hn@cmie.ernet.in> ajayshah@cmie.ernet.in
- >
- >
- >>I just finished using Nortons `sysinfo' to measure the performance
- >>of B&W 3.0 NFS and I get 80k/s on read and 10k/s on write.
- >
- >>This is on a 386@25.
- >
- >What was your server: This is about right for SCO Unix, but poor for
- >(say) a SUN.
- >
- >>Ouch! What can one do about it?
- >
- >Not much. Prestoserve on a SUN. ask again in comps.protocols.nfs
- >
- The write performance can be improved by setting the /W parameter
- on BWNFS.COM to /W:8192 . The Read performance can be improved by increasing
- the /R: parameter, BUT if you increase it past the maximum number of packets
- the Ethernet card can receive in a row, the NFS will hang.
-
- >>NFS has a serious problem being a credible approach for networking
- >>PCs if this is all one gets by way of speed. What does one get with
- >>Novell Netware?
- >
- >In excess of 500Kbytes/Sec. If speed is all you want, forget NFS.
- >Netware caches its disk, and can give very near saturation of the
- >Ethernet with a good server - lets face it thats ALL the server CPU
- >and RAM does: Serve files :-) (NLM's excluded)
-
- Remember sysinfo uses variable read and write sizes, other performance
- monitors use large read and write buffers which will cause the performance
- to increase greatly.
-
- One test we tried at Fall Interop was to run the Novell performance
- monitor from a Compaq/486 (wd8013) to a Vax running TGV's Multinet Server
- running their NFS server and their Netware Server (both use the same underlying
- file server code). The Netware did about 430 KB/sec while BWNFS did about
- 600 KB/sec. When we reduced the buffer size, Netware did not degrade much
- while the NFS slowed down.
-
- Carl Beame
- Beame & Whiteside Software Ltd.
- beame@bws.com
-