Messages in this thread | | | Date | Fri, 18 Sep 2009 07:53:58 +0100 (BST) | From | Hugh Dickins <> | Subject | Re: aim7 scalability issue on 4 socket machine |
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On Thu, 17 Sep 2009, Andrew Morton wrote: > On Fri, 18 Sep 2009 10:02:19 +0800 "Zhang, Yanmin" <yanmin_zhang@linux.intel.com> wrote: > > > > > > So, Yanmin, please retest with http://lkml.org/lkml/2009/9/13/25 > > > and let us know if that works as well for you - thanks. > > I tested Lee's patch and it does fix the issue.
Thanks for checking and reporting back, Yanmin.
> > Do we think we should cook up something for -stable?
Gosh, I laughed at Lee (sorry!) for suggesting it for -stable: is stable really for getting a better number out of a benchmark?
I'd have thought the next release is the right place for that; but I've no problem if you guys and the stable guys agree it's appropriate.
> > Either this is a regression or the workload is particularly obscure.
I've not cross-checked descriptions, but assume Lee was actually testing on exactly the same kind of upcoming Nehalem as Yanmin, and that machine happens to have characteristics which show up badly here.
> > aim7 is sufficiently non-obscure to make me wonder what's happened here?
Not a regression, just the onward march of new hardware, I think. Could easily be other such things in other places with other tests.
Hugh
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