Messages in this thread | | | Subject | Re: Hack bench regression with CONFIG_SLUB_CPU_PARTIAL disabled (info only) | From | Eric Dumazet <> | Date | Thu, 25 Jul 2013 04:05:59 -0700 |
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On Thu, 2013-07-25 at 13:30 +0530, Raghavendra K T wrote: > Hi, > > While testing hackbench with 3.11-rc1 I observed hackbench testcase > took too long to complete (32 vcpu kvm guest on 32 core HT off machine). > > hackbench 1x degraded by 3 time (40sec vs 112sec) > hackbench 2x degraded by around 20time (90sec vs 1800 sec) > > When I bisected, I found that I had CONFIG_SLUB_CPU_PARTIAL > accidentally disabled. > I understand that CONFIG_SLUB_CPU_PARTIAL=y by default and the config > option is to provide determinism for RT kernels and thus it is not a > problem. > But thought of sharing this here so that if somebody runs into same > issue accidently, it would save their time.
Incidentally, what difference do you currently get with SLUB and SLAB ?
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