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. --------------------------------------------------------------------------- Fedora Ambassador: http://fedoraproject.org/wiki/StefanHeld --------------------------------------------------------------------------- perl -e'map{print pack c,($|++?1:13)+ord,select$,,$,,$,,$|}split//,ESEL.$/' ---------------------------------------------------------------------------