Messages in this thread | | | Date | Fri, 02 Aug 2013 08:52:07 +0530 | From | Raghavendra K T <> | Subject | Re: [PATCH RFC V11 15/18] kvm : Paravirtual ticketlocks support for linux guests running on KVM hypervisor |
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On 08/01/2013 02:34 PM, Raghavendra K T wrote: > On 08/01/2013 01:15 PM, Gleb Natapov wrote: >>> Shall I consider this as an ack for kvm part? >>> >> For everything except 18/18. For that I still want to see numbers. But >> 18/18 is pretty independent from the reset of the series so it should >> not stop the reset from going in. > > Yes. agreed. > I am going to evaluate patch 18 separately and come with results for > that. Now we can consider only 1-17 patches. >
Gleb,
32 core machine with HT off 32 vcpu guests. base = 3.11-rc + patch 1 -17 pvspinlock_v11 patched = base + patch 18
+-----------+-----------+-----------+------------+-----------+ dbench (Throughput in MB/sec higher is better) +-----------+-----------+-----------+------------+-----------+ base stdev patched stdev %improvement +-----------+-----------+-----------+------------+-----------+ 1x 14584.3800 146.9074 14705.1000 163.1060 0.82773 2x 1713.7300 32.8750 1717.3200 45.5979 0.20948 3x 967.8212 42.0257 971.8855 18.8532 0.41994 4x 685.2764 25.7150 694.5881 8.3907 1.35882 +-----------+-----------+-----------+------------+-----------+
I saw -0.78% - .84% changes in ebizzy and 1-2% improvement in hackbench.
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