Optimising NFS for system files

[Bernard Dugas]

Hi,

I'm working on a project to have many diskless clients PXEbooting on 1
nfs server.

With some help :-) i could manage to share almost all system files (/, 
/usr,..) through NFS.

i can see a reading speed difference 4 time slower on client than on 
server (time tar -cf - /usr > /dev/null).

I will play with jumbo MTU for network performance, but would anybody 
know if i can ask system files NFS exports to stay in server memory ? I 
have less than 2Go to share and 2GO DDR2 is affordable.

Thanks a lot,
Best regards,