2003-11-13 15:55:18

by Eric Whiting

[permalink] [raw]
Subject: Re: 2.4 vs. 2.6 nfs client performance

Trond Myklebust wrote:
> Any hints on how I can reproduce your results?

Trond,

This is not the same test, nor the same results as Jason's, but here is some
more data from bonnie and dd tests.This shows some write performance difference
between 2.4 and 2.6
eric

SERVER: 2.4.21

CLIENT: 2.4.19 nfsv3
Bonnie
Writing with putc()... done: 9132 kB/s 33.4 %CPU
Rewriting... done: 8713 kB/s 4.2 %CPU
Writing intelligently...done: 9116 kB/s 4.6 %CPU

$ rm file;time dd if=/dev/zero of=file bs=1 count=10000000
10000000+0 records in
10000000+0 records out

real 0m30.404s
user 0m3.930s
sys 0m26.250s



CLIENT: 2.6.0-test6-mm4
Writing with putc()... done: 806 kB/s 5.4 %CPU
Rewriting... done: 3321 kB/s 3.9 %CPU
Writing intelligently...done: 2715 kB/s 2.4 %CPU


$ rm file;time dd if=/dev/zero of=file bs=1 count=10000000
10000000+0 records in
10000000+0 records out

real 1m37.848s
user 0m17.355s
sys 1m8.947s


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2003-11-13 17:55:14

by Trond Myklebust

[permalink] [raw]
Subject: Re: 2.4 vs. 2.6 nfs client performance


> This is not the same test, nor the same results as Jason's, but
> here is some more data from bonnie and dd tests.This shows some
> write performance difference between 2.4 and 2.6 eric

How about vs. 2.4.23?

Cheers,
Trond


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