NFS Performance issue against NetApp

[Rick Macklem]

Marc G. Fournier wrote:
> On 2013-04-24, at 14:18 , Rainer Duffner <rainer at ultra-secure.de>
> wrote:
> 
> >
> > Am 24.04.2013 um 23:02 schrieb "Marc G. Fournier" <scrappy at hub.org>:
> >
> >>
> >> On 2013-04-24, at 12:48 , Rainer Duffner <rainer at ultra-secure.de>
> >> wrote:
> >>
> >>>
> >>> In the NFS mount options.
> >>> I've re-done my tests and it still seems to be a problem.
> >>
> >> 'k, just to clarify … your tests are with the Broadcom chipset(s)?
> >> I have an Intel card on order, so will run tests against that as
> >> soon as it gets here to see how it changes …
> >>
> >
> >
> > No, with the intel card then.
> > Even then it was slow.
> >
> >
> >
> >> Just curious, but what are you running for tests? I noticed it
> >> visually, but other then using something like iozone21, not sure
> >> what is useful for coming up with a benchmark …
> >
> >
> > I've just ran something like
> > dd if=/dev/zero of=bla bs=1000000 count=1000
> >
> > on the nfsmount on the client.
> >
> 
> Here is what I'm seeing with the Broadcom card:
> 
> IOZONE performance measurements:
> 108561574 bytes/second for writing the file
> 95311340 bytes/second for reading the file
> 
> 
> That is using 'ozone 1024' for a 1G file … and no mount / kernel
> settings …
> 
> The problem isn't with the single file read / write though … the
> problem is when starting up an app server like jboss … my "reference
> server" is an old 32bit, 2 CPU + HT server with local drives … start
> up takes, from jboss start to deploy:
> 
> JBoss AS 7.1.1.Final "Brontes" started in 87916ms
> 
> now, I do acknowledge that this is with local drives, so will always
> be faster the NFS drives … but …
> 
> HP Proliant Gen8, 64bit, 16G of RAM, Oodles of CPU:
> FreeBSD/SMP: Multiprocessor System Detected: 24 CPUs
> FreeBSD/SMP: 2 package(s) x 6 core(s) x 2 SMT threads
> Brand new HP Procurve 2910al-24G … brand new 3xxx series NetApp
> running 8.1.2 … and everything pretty much idle (non production yet),
> and:
> 
> JBoss AS 7.1.1.Final "Brontes" started in 310249ms
> 
> 
> So, over 4x slower?
> 
> Can you send me what your mount options are in /etc/fstab? I'd like to
> try that out and compare against the two above … and I do have the
> Intel card on the way, so see if that makes a difference …
> 
Along with rsize,wsize you might want to try increasing readahead. The
default is only 1.

rick

> 
> 
> 
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