From: "Bjørnar Ness" <bjornar.ness@gmail.com>
To: linux-nfs@vger.kernel.org
Subject: caching issue with nocto
Date: Mon, 10 Jun 2013 10:37:56 +0200 [thread overview]
Message-ID: <CAJO99TmfCTYgyrwgUWUmFNGjhQhtHzA7+YDby_MNH2Bjt5tk2g@mail.gmail.com> (raw)
Mounting with nocto option drasticly improves performance, but doing
some tests, it seems that if a file is modified, either from the
client doing the mount or other client, the file is never cached
again.
Can this be seen as a bug?
Test:
while true;do time cat /usr/src/linux-3.9.5(include/linux/*.h >/dev/null;done
Stabilizes on ~10ms here with nocto
But then, if touching a file from either same client or other, time
skyrockets, and never gets back to anything near 10ms! Only solution
is to unmount and mount again..
Is this expected behaviour?
--
Bj(/)rnar
next reply other threads:[~2013-06-10 8:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-10 8:37 Bjørnar Ness [this message]
2013-06-13 7:47 ` caching issue with nocto Bjørnar Ness
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