NFS performances on 5.1

[Jacques Beigbeder]

>> > On a same Ethernet 100 LAN, I have several Unix and
>> > an NFS Solaris fileserver. On these Unix, I tried:
>> > 	time dd=/fileserver/aFile of=/fileserver/otherFile bs=32768
>> > On each try, I use new files, to avoid the impact of file caching.
>> > 
>> > I measured the time spent and the number of Ethernet packets (with snoop).
>> > I found:
>> > 
>> > NFS client	time		# pkts
>> > =============== =======         ======
>> > Solaris		3.11s		2296
>> > Linux Redhat9	2.42s		1929
>> > FreeBSD 5.1	19.72s		14887	<!!!
>> > FreeBSD 4.9	3.04s		6380
>> > FreeBSD 5.2	2.98s		5941
>> 
>> The best way to tune 5.1 is to update it to 5.2 (I'm sure you read all
>> the documentation that states that the 5.x branch is a new technology
>> release with performance not being an initial goal). 

	Of course, but I have 60+ stations tu upgrade...

>> However, those
>> numbers still look excessive, so I wonder if you forgot to turn off
>> some of the debugging options like WITNESS.

	I have the kernel from the distribution.

--
Jacques Beigbeder                    |  Jacques.Beigbeder at ens.fr
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