[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [RFC PATCH v2] Implement Batched (group) ticket lock
For baremetal we continue to have 'fully fair ticketlock' with this patch series.But but but, we're looking at removing ticket locks. So why do we want to invest in them now? I have nothing against qspinlock. I am happy to test it/add any bit to it if I could. With this patch we get excellent performance for guest with the unmodified kernel without affecting host. My test on guest with batch_size =16,32 showed even better performance bs=16 bs=32 ebizzy_0.5x 0.14 0.90 ebizzy_1.0x 3.57 7.52 ebizzy_1.5x 58.97 67.65 ebizzy_2.0x 121.55 136.45 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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