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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 0 of 5] v2: Nested-p2m cleanups and locking changes
At 14:23 +0200 on 27 Jun (1309184586), Christoph Egger wrote: > > - Why is there a 10x increase in IPIs after this series? I don't see > > what sequence of events sets the relevant cpumask bits to make this > > happen. > > In patch 1 the code that sends the IPIs was outside of the loop and > moved into the loop. Well, yes, but I don't see what that causes 10x IPIs, unless the vcpus are burning through np2m tables very quickly indeed. Maybe removing the extra flushes for TLB control will do the trick. I'll make a patch... Tim. -- Tim Deegan <Tim.Deegan@xxxxxxxxxx> Principal Software Engineer, Xen Platform Team Citrix Systems UK Ltd. (Company #02937203, SL9 0BG) _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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