[CentOS] nfs slow?
Stefan Held
obi at unixkiste.org
Wed Dec 10 19:40:12 UTC 2008
Am Mittwoch, den 10.12.2008, 20:07 +0100 schrieb Davide Cittaro:
> Hi all, I'm migrating from Gentoo to CentOS... I'm experiencing a
> rather low performance in NFS r/w (as client).
I am not the Linux Expert when it comes to the nfs implementation,
but you should try two things:
1.) Nail Linux to use nfs v3 (imho mount option nfsvers=3)
2.) Use TCP, UDP Transmits are often slow these days. (mount option tcp)
> NFS server is solaris (which exports zfs volumes via nfs). The very
> same exports were mounted with the same parameters (auto,nosuid,exec)
> on gentoo and centos server (bot x86_64)... It happens that centos is
> 5-10 times slower either in read and write operations... Ok, I'll try
> to tune rsize and wsize, but does anybody have an hint on this low
> performance?
>
Maybe gentoo uses v3 per default. We have made great improvements at our
site with these mount options.
--
Stefan Held VI has only 2 Modes:
obi unixkiste org The first one is for beeping all the time,
FreeNode: foo_bar the second destroys the text.
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