From: Emmanuel Florac <eflorac@intellique.com>
To: linux-nfs@vger.kernel.org
Subject: NFS daemon statistics in /proc/net/rpc/nfsd
Date: Fri, 5 Oct 2012 18:48:56 +0200 [thread overview]
Message-ID: <20121005184856.4472a72e@harpe.intellique.com> (raw)
I noticed a long time ago that the thread information in
/proc/net/rpc/nfsd isn't updated anymore since somewhere between the
2.629 (information present) and 2.6.32 (information missing). It's
quite easy to check:
# grep th /proc/net/rpc/nfsd
th 8 0 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000
All values are perpetually at zero. Unsurprising, because the
update_thread_usage function in fs/nfsd/nfssvc.c isn't present anymore.
I can't find any information about why this information was dropped; I
personnally found it useful to tune properly the number of nfs threads
on loaded servers. Did it use up too many resources? In that case,
could there be a mechanism to enable or disable therad information
gathering, for instance through writing to some /proc file?
--
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Emmanuel Florac | Direction technique
| Intellique
| <eflorac@intellique.com>
| +33 1 78 94 84 02
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next reply other threads:[~2012-10-05 16:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-05 16:48 Emmanuel Florac [this message]
2012-10-05 18:42 ` NFS daemon statistics in /proc/net/rpc/nfsd Jim Rees
2012-10-05 20:28 ` J. Bruce Fields
2012-10-05 21:03 ` Emmanuel Florac
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