Re: [PATCH 00/45] Automatic NUMA Balancing V7

From: Mel Gorman
Date: Mon Dec 10 2012 - 04:07:25 EST


On Fri, Dec 07, 2012 at 04:15:39PM +0530, Srikar Dronamraju wrote:
>
> Got a chance to run autonuma-benchmark on a 8 node, 64 core machine.
> the results are as below. (for each kernel I ran 5 iterations of
> autonuma-benchmark)
>

Thanks, a test of v10 would also be appreciated. The differences between
V7 and V10 are small but do include a change in how migrate rate-limiting
is handled. It is unlikely it'll make a difference to this test but I'd
like to rule it out.

> KernelVersion: 3.7.0-rc3-mainline_v37rc7()

What kernel is this? The name begins with 3.7-rc3 but then says
v37rc7. v37rc7 of what? I thought it might be v3.7-rc7 but it already said
it's 3.7-rc3 so I'm confused. Would it be possible to base the tests on
a similar baseline kernel such as 3.7.0-rc7 or 3.7.0-rc8? The
balancenuma patches should apply and the autonuma patches can be taken
from the mm-autonuma-v28fastr4-mels-rebase branch in
git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma.git

Either way, the figures look bad. I'm trying to find a similar machine
but initially at least I have not had much luck. Can you post the .config
you used for balancenuma in case I can reproduce the problem on a 4-node
machine please? Are all the nodes the same size?

Thanks!

--
Mel Gorman
SUSE Labs
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