Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!hplabs!otter!crd
From: crd@otter.hpl.hp.com (Chris Dalton)
Newsgroups: comp.sys.hp
Subject: Re: Backup over net (Was Re: NFS Super users?)
Message-ID: <2980006@otter.hpl.hp.com>
Date: 2 Aug 89 14:37:19 GMT
References: <2924@helios.ee.lbl.gov>
Organization: Hewlett-Packard Laboratories, Bristol, UK.
Lines: 17

[ stuff about impossibly fast du over NFS ]

> Another possibility is that looking at the data from the disk is a
> significant part of the job, in which case it is possible to win by doing the
> processing on a fast CPU.

>> This is why it is generally better to do local I/O than use some network
>> file system.

Hmm.  What if ... using NFS made a difference to the amount read from
the disk in any one request, compared with a local read?

For example, if du via NFS caused 4K reads on the 300, and du on the 300
caused 1K reads...  I'm only guessing, of course, but I've seen odd effects
like this before.

Chris