From: jhopper@Safe-mail.net
To: linux-nfs@vger.kernel.org
Subject: extremely slow v4 performance on gigabit link
Date: Wed, 5 Aug 2015 07:13:58 -0400 [thread overview]
Message-ID: <N1B-heRnt8zOCE@Safe-mail.net> (raw)
I have a very slow (less than 1MB/s) performance with nfsv4 TCP, rsize/wsize have no effect, server is a kernel 3.19 x86 100hz no preempt exporting async nfsv4 TCP on nfs-utils 1.2.7, client is a kernel 4.1.3 x64 1000hz full preempt with nfs-utils 1.3.2 , physical link is 1 gigabit full duplex, I mounted a few cifs shares to check, the cifs shares are working at 30 MB/s and higher
is it possible that preempt has an effect on NFS performance ? does timeslice have effect on performance ?
next reply other threads:[~2015-08-05 14:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-05 11:13 jhopper [this message]
2015-08-05 18:24 ` extremely slow v4 performance on gigabit link J. Bruce Fields
-- strict thread matches above, loose matches on Subject: below --
2015-08-06 14:48 jhopper
2015-08-10 15:23 ` J. Bruce Fields
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