invalidate cache / NFS performance on a diskless system
Subsystems (2)
Hello!
We've set up our network using a linux 2.6.9 server and abt. 25-30 linux clients using NFS.
The clients are booting through PXE and work in a diskless fashion. i.e.=20
they mount their root directory via NFS
only /var and /tmp are on a tmpfs device.
To improve performance we have currently set the root directory=20 (including the /usr tree) to use the mount options
ro,
noatime,
v3,
rsize=3D32768,wsize=3D32768,
actimeo=3D180,
hard,tcp,nocto,nolock
To further improve the performance of the clients,=20
I'd like to increase actimeo to abt. 9 hours.
But this leads to severe problems, if some small configurations are done=20 during the day (e.g. installing new soft or configuration work...):
The changes do not apprear on the client nodes in reasonable time.
So I'd like to know if there is a switch to invalidate the whole NFS / VFS?= =20
cache at once!
(e.g. an echo something > /proc/somewhere )?
An there any other hints/experiences to improve performance on such a syste= m?
(Our new server with 10k rpm Disks is already ordered!)
tnx fr ur help
J=FCrgen
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to den 09.12.2004 Klokka 17:18 (+0100) skreiv J.Rinas:
Quoted 3 lines
So I'd like to know if there is a switch to invalidate the whole NFS / VFS? cache at once!
(e.g. an echo something >/proc/somewhere)?
No.
Cheers,
Trond
Signature · 12 lines
Trond Myklebust <[email protected]> ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://productguide.itmanagersjournal.com/ _______________________________________________ NFS maillist - [email protected] https://lists.sourceforge.net/lists/listinfo/nfs