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Groups > linux.kernel > #1195895
| From | Peter Zijlstra <peterz@infradead.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] sched: Avoid sched domain rebuilding when hotplugging an isolate cpu |
| Date | 2015-07-30 12:40 +0200 |
| Message-ID | <pRTpM-47f-3@gated-at.bofh.it> (permalink) |
| References | <pN8Su-82M-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Fri, Jul 17, 2015 at 04:03:45PM +0800, Xunlei Pang wrote: > From: Xunlei Pang <pang.xunlei@linaro.org> > > The sched domain is always rebuilt when hotplugging an isolate cpu, > as we can see in partition_sched_domains() with the NULL doms_new, > current sched domain is destroyed, then rebuilt. Worse still, the > rebuilding will reset all the parameters of the sched_domain. This > makes no sense and contradicts the isloate concept. What parameters? isolcpus should have fairly trivial domains to begin with. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [PATCH] sched: Avoid sched domain rebuilding when hotplugging an isolate cpu Peter Zijlstra <peterz@infradead.org> - 2015-07-30 12:40 +0200 Re: [PATCH] sched: Avoid sched domain rebuilding when hotplugging an isolate cpu pang.xunlei@zte.com.cn - 2015-07-30 13:20 +0200
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