Messages in this thread |  | | | Date | Mon, 11 Oct 2010 17:22:26 -0700 | | From | Andrew Morton <> | | Subject | Re: Problem: scaling of /proc/stat on large systems |
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On Tue, 12 Oct 2010 09:09:07 +0900 KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> > > > > > How about this ? This is an add-on patch. > > > > Nice!! > > > > The combination of the 2 patches solves the problem. > > The timings are (4096p, 256 nodes, 4592 irqs): > > > > # time cat /proc/stat > /dev/null > > > > Baseline: 12.627 sec > > Patch1 : 2.459 sec > > Patch 1 + Patch 2: .561 sec > > > > > > Acked-by: Jack Steiner <steiner@sgi.com> > > > > Thank you for testing. I'll post again if necessary.
Yes please. This has been going on for two weeks so memories need refreshing. Also we have no patch title and no changelog which includes the testing results.
I could stitch all that together of course, but it's best that it all be done afresh, I think.
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