Messages in this thread | | | Subject | Re: [RFC PATCH RT] rwsem: The return of multi-reader PI rwsems | From | Mike Galbraith <> | Date | Thu, 10 Apr 2014 16:18:30 +0200 |
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On Wed, 2014-04-09 at 15:19 -0400, Steven Rostedt wrote:
> If you have any benchmark on large machines I would be very happy if > you could test this patch against the unpatched version of -rt.
Too bad I don't have (and know how to use) specjbb.
I dug up old vmark, thinking I'd be able to get some halfway useful relative numbers from it, but that was a waste of a day. The thing performs so badly on 40 core box that rt _beats_ nopreempt, and after 2 nodes, you're going backward. 40 Westmere EX cores does a whopping ~2.5 * dinky old Q6600 box throughput.
-Mike
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