[CentOS] NFS performance on CentOS 7

Michael Eager

eager at eagerm.com
Sat May 9 18:34:34 UTC 2015


I am setting up a file server with CentOS 7.  I'm seeing
performance which is considerably slower than a similar
server running CentOS 6.6.  A 3Gb directory can be copied
to/from the CentOS 6.6 server in about 50 seconds.  The
same directory takes about 270 seconds to copy to/from
the CentOS 7 system.

I see the same performance difference with NFS mounted
file systems or using scp, so it doesn't appear to be
an NFS issue.  The MTU on the NICs on both systems is
1500, and changing it to 6000 on the CentOS 7 system had
no effect.

Anyone have any ideas what might cause this problem or
how to fix it?

-- 
Michael Eager	 eager at eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077



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