Re: [PATCH RT 4/8] sched: migrate disable: Protect cpus_ptr with lock
From: Scott Wood <hidden>
Date: 2019-09-27 20:03:05
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From: Scott Wood <hidden>
Date: 2019-09-27 20:03:05
Also in:
lkml
On Fri, 2019-09-27 at 14:19 +0200, Sebastian Andrzej Siewior wrote:
On 2019-09-26 11:52:42 [-0500], Scott Wood wrote:quoted
Looks good, thanks!Thanks, just released. Moving forward. It would be nice to have some DL-dev feedback on DL patch. For the remaining once, could please throw Steven's stress-test-hostplug-cpu-script? If that one does not complain I don't see a reason why not apply the patches (since they improve performance and do not break anything while doing so).
I'd been using a quick-and-dirty script that does something similar, and ran it along with rcutorture, a kernel build, and something that randomly changes affinities -- though with these loads I have to ignore occasional RCU forward progress complaints that Paul said were expected with this version of the RCU code, XFS warnings that happen even on unmodified non-RT, and sometimes a transitory netdev timeout that is not that surprising given the heavy load and affinity stress (I get it without these patches as well, though it takes longer). I just ran Steven's script (both alone and with the other stuff above) and saw no difference. -Scott