From: Mark Goodman <mgoodman@CSUA.Berkeley.EDU>
To: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: nfs@lists.sourceforge.net
Subject: Re: [NFS] http://client.linux-nfs.org/Linux-2.6.x/2.6.10/linux-2.6.10-33-access_cache.dif
Date: Sat, 05 Feb 2005 17:42:28 -0800 [thread overview]
Message-ID: <42057604.2060305@csua.berkeley.edu> (raw)
In-Reply-To: <1107649486.484.2.camel@lade.trondhjem.org>
Trond Myklebust wrote:
>lau den 05.02.2005 Klokka 01:50 (-0800) skreiv Mark Goodman:
>
>
>>This patch appears to have the effect that non-existent files don't get
>>cached. When I apply it to 2.6.10, a C preprocessor workload that
>>involves opening lots of non-existent files slows down by an order of
>>magnitude and I notice tens of thousands of NFS ACCESS calls per second
>>according to nfsstat.
>>
>>
>
>Nope. NFS_ACCESS can only be called on files that *do* exist.
>
>Are you sure that you are not using it on directories that are changing
>a lot?
>
>Cheers,
> Trond
>
>
>
Yes, the directories are not changing.
Mark
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prev parent reply other threads:[~2005-02-06 1:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-02-05 9:50 http://client.linux-nfs.org/Linux-2.6.x/2.6.10/linux-2.6.10-33-access_cache.dif Mark Goodman
2005-02-06 0:24 ` [NFS] http://client.linux-nfs.org/Linux-2.6.x/2.6.10/linux-2.6.10-33-access_cache.dif Trond Myklebust
2005-02-06 1:42 ` Mark Goodman [this message]
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