Messages in this thread |  | | From | Lars Magne Ingebrigtsen <> | Subject | Re: Performance problems with NFS under 2.4.20 | Date | Mon, 13 Jan 2003 17:11:58 +0100 |
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Trond Myklebust <trond.myklebust@fys.uio.no> writes:
> That is quite deliberate. > > open() is supposed to generate an RPC call in order to ensure that > cached attributes (and hence cached data) are still valid (this is > part of what is known as NFS 'close-to-open' cache consistency).
Ah, right.
> If you are certain that you will never access the same file/directory > from 2 different machines, you can try to mount with the 'nocto' mount > option.
Thanks; "notco" fixes the problem.
I have several machines that reads the same files/directories, but only one machine that writes to the directories. Will that be OK?
(The reason I noticed this at all is that out PHP-based web servers started generating much internal network traffic after the upgrade. The PHP directories are NFS-mounted, and due to the number of PHP library files opened by each web access, the NFS traffic was about 10 times as high as the HTTP traffic. :-/)
-- (domestic pets only, the antidote for overdose, milk.) larsi@gnus.org * Lars Magne Ingebrigtsen
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