From: "J. Bruce Fields" <bfields@fieldses.org>
To: Krishna Kumar2 <krkumar2@in.ibm.com>
Cc: jlayton@redhat.com, Krishna Kumar <krikku@gmail.com>,
linux-nfs@vger.kernel.org
Subject: Re: [PATCH 0/11] nfsd: Summary of "Improve NFS server performance"
Date: Wed, 22 Apr 2009 15:41:21 -0400 [thread overview]
Message-ID: <20090422194121.GF9541@fieldses.org> (raw)
In-Reply-To: <OF1C0CA781.3D250575-ON652575A0.001DB832-652575A0.001EB15F@in.ibm.com>
On Wed, Apr 22, 2009 at 11:05:14AM +0530, Krishna Kumar2 wrote:
> "J. Bruce Fields" <bfields@fieldses.org> wrote on 04/22/2009 04:27:28 AM:
>
> > The numbers look promising, but very noisy. Maybe an average of a few
> > tests would give more stable numbers?
>
> Is it enough if I cut out some "popular" bufsizes and #processes out of
> that
> table and post it? If so, here is a smaller list:
By "noisy" I just mean that they look like there's a lot of randomness.
So, yes, I'm fine with a subset, but I'm curious what the variance is on
repeated runs of each test.
--b.
>
> ----------------------------------------------------------------------
> #Processes Bufsize OrgBW KB/s New BW KB/s %
> ----------------------------------------------------------------------
> 4 4096 60660.67 64309.37 6.01
> 4 16384 60796.86 64069.82 5.38
> 4 65536 60774.45 63735.24 4.87
> 4 131072 61369.66 65261.85 6.34
>
> 8 4096 50650.45 55400.01 9.37
> 8 16384 51114.76 56025.31 9.60
> 8 65536 51000.23 54285.63 6.44
> 8 131072 52996.73 54021.11 1.93
>
> 16 4096 43897.69 46519.89 5.97
> 16 16384 43883.62 46726.03 6.47
> 16 65536 43804.33 44865.20 2.42
> 16 131072 44525.30 43752.62 -1.73
>
> 32 4096 39913.14 42279.21 5.92
> 32 16384 38094.95 42645.32 11.94
> 32 65536 41438.05 41794.76 .86
> 32 131072 41869.06 43644.07 4.23
>
> 64 4096 35468.42 35529.29 .17
> 64 16384 31926.51 32694.91 2.40
> 64 65536 36066.08 36359.77 .81
> 64 131072 35969.04 37462.86 4.15
>
> 128 4096 29311.11 30097.65 2.68
> 128 16384 28283.58 29071.45 2.78
> 128 65536 32617.13 33778.46 3.56
> 128 131072 32972.71 34160.82 3.60
>
> 192 4096 27368.48 29318.49 7.12
> 192 16384 26388.54 29719.15 12.62
> 192 65536 33374.85 33607.14 .69
> 192 131072 33523.48 32601.93 -2.74
> -----------------------------------------------------------------------
> 1170059.88 1223737.36 4.58%
> -----------------------------------------------------------------------
>
> Thanks,
>
> - KK
>
next prev parent reply other threads:[~2009-04-22 19:41 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090325133607.16437.33288.sendpatchset@localhost.localdomain>
[not found] ` <20090325133607.16437.33288.sendpatchset-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-04-17 18:46 ` [PATCH 0/11] nfsd: Summary of "Improve NFS server performance" J. Bruce Fields
2009-04-17 19:30 ` Krishna Kumar2
2009-04-21 22:57 ` J. Bruce Fields
2009-04-22 5:35 ` Krishna Kumar2
2009-04-22 19:41 ` J. Bruce Fields [this message]
[not found] ` <20090325133628.16437.11092.sendpatchset@localhost.localdomain>
[not found] ` <20090325133628.16437.11092.sendpatchset-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-04-21 22:48 ` [PATCH 1/11] nfsd: ADD data structure infrastructure J. Bruce Fields
2009-04-22 5:36 ` Krishna Kumar2
2009-04-22 19:43 ` J. Bruce Fields
2009-04-21 23:05 ` J. Bruce Fields
[not found] ` <20090325133647.16437.59567.sendpatchset@localhost.localdomain>
[not found] ` <20090325133647.16437.59567.sendpatchset-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-04-22 2:54 ` [PATCH 2/11] nfsd: ADD new function infrastructure J. Bruce Fields
2009-04-22 5:37 ` Krishna Kumar2
[not found] ` <20090325133707.16437.66360.sendpatchset@localhost.localdomain>
[not found] ` <20090325133707.16437.66360.sendpatchset-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-04-22 20:05 ` [PATCH 3/11] nfsd: CHANGE old function calls to new calls J. Bruce Fields
2009-04-23 15:55 ` Krishna Kumar2
2009-04-23 22:39 ` J. Bruce Fields
2009-04-24 16:17 ` Krishna Kumar2
2009-04-24 16:23 ` J. Bruce Fields
2009-04-24 16:58 ` Krishna Kumar2
2009-04-24 19:25 ` J. Bruce Fields
2009-04-26 11:16 ` Krishna Kumar2
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