* invalidate cache / NFS performance on a diskless system
@ 2004-12-09 16:18 J.Rinas
2004-12-10 5:34 ` Trond Myklebust
0 siblings, 1 reply; 2+ messages in thread
From: J.Rinas @ 2004-12-09 16:18 UTC (permalink / raw)
To: nfs
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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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: invalidate cache / NFS performance on a diskless system
2004-12-09 16:18 invalidate cache / NFS performance on a diskless system J.Rinas
@ 2004-12-10 5:34 ` Trond Myklebust
0 siblings, 0 replies; 2+ messages in thread
From: Trond Myklebust @ 2004-12-10 5:34 UTC (permalink / raw)
To: J.Rinas; +Cc: nfs
to den 09.12.2004 Klokka 17:18 (+0100) skreiv J.Rinas:
> 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
--
Trond Myklebust <trond.myklebust@fys.uio.no>
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Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
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_______________________________________________
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https://lists.sourceforge.net/lists/listinfo/nfs
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2004-12-09 16:18 invalidate cache / NFS performance on a diskless system J.Rinas
2004-12-10 5:34 ` Trond Myklebust
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