Messages in this thread | | | Date | Fri, 14 Feb 2003 12:01:11 -0800 | From | "Martin J. Bligh" <> | Subject | Re: [PATCH] percpu load avererages / *real* load averages |
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> Probably needs some tidying up before it's mergeable, but I like it. > Is useful as is, so I thought other people might want to look at it and > give me feedback. Based very loosely on a earlier patch by Andrew Theurer > that gave nr_running per cpu, but I wanted to see load averages. This is > extremely useful for looking at scheduler rebalancing problems. > > I think we should be basing the scheduler rebalance calculations off load > averages, rather than a couple of sample points - I'll create a patch to > do this sometime soon.
Oh, by tidying up, I mean this should probably be done in the per-cpu areas, from the scheduler tick, lockless, and we shouldn't bother keeping the global one - just derive it at read time. That'd make it might lighter weight, but I just wanted a quick hack to see what was going on ;-)
M.
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