Messages in this thread | | | Date | Thu, 7 Nov 2019 17:28:42 +0100 | From | Sebastian Andrzej Siewior <> | Subject | Re: [PATCH] percpu-refcount: Use normal instead of RCU-sched" |
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On 2019-11-07 11:17:49 [-0500], Dennis Zhou wrote: > Hello,
Hi,
> I just want to clarify a little bit. Is this patch aimed at fixing an > issue with RT kernels specifically?
Due to the implications of preempt_disable() on RT kernels it fixes problems with RT kernels.
> It'd also be nice to have the > numbers as well as if the kernel was RT or non-RT.
The benchmark was done on a CONFIG_PREEMPT kernel. As said in the commit log, the numbers were mostly the same, I can re-run the test and post numbers if you want them. This patch makes no difference on PREEMPT_NONE or PREEMPT_VOLUNTARY kernels.
> Thanks, > Dennis
Sebastian
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