Messages in this thread | | | Date | Wed, 09 Apr 2014 17:38:11 +0530 | From | Raghavendra K T <> | Subject | Re: [PATCH v8 00/10] qspinlock: a 4-byte queue spinlock with PV support |
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On 04/09/2014 12:45 AM, Waiman Long wrote: > Yes, I am able to reproduce the hang problem with ebizzy. BTW, could you > try to apply the attached patch file on top of the v8 patch series to > see if it can fix the hang problem?
Ran the benchmarks with the fix and I am not seeing hang so far. ebizzy improvements.
0.5x 2.7345 1x -10.6593 1.5x 35.6962 2x 88.0461
dbench improvements 0.5x 3.2428 1x 1.1514 1.5x 5.5071 2x 23.8700 ( I will have to restest on ebizzy 1x reression but overall performance numbers look good).
>> Baseline was 3.14-rc8 without any of the qspin patch series. >> > > Does the baseline have PV ticketlock or without any PV support?
baseline had PV ticketlock enabled.
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