On Wed, Jul 02, 2008 at 04:56:05AM +0300, Knut Talman wrote:
> Dear all,
> 
> we were using NFS on our CentOS 5 machines to distribute the home
> directories. On machine with many users this was terribly slowing down
> the performance for the users.
> They are working with a JAVA applet which caches a lot of data in the
> home directory.
> So I was wondering what others are using and how the performance is.

We use NFS, and we use Linux on our NFS server and on most of the clients, and
this works well.

However, it doesn't just magically work well.

It can perform just fine, but you need to be sure that
1) The underlying disk subsystem is up to it
2) The network is up to it
3) The server and clients are properly configured

You need a good disk array on a good controller (with lots of battery backed
write buffer) on a properly configured NFS server (many many linux kernels suck
at NFS serving) connected on gigabit ethernet on a proper switch that doesn't
discard too many packets, along with clients that are properly configured
(Linux traditionally suck rocks as an NFS client, various kernel versions with
various tuning parameters can mitigate the suckiness).

-- 

 / jakob

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