On Fri, May 18, 2018 at 9:30 AM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> wrote: > On Fri, May 18, 2018 at 7:12 AM, Justin Forbes <jforbes@xxxxxxxxxx> wrote: >> On Thu, May 17, 2018 at 4:25 PM, Chris Murphy <lists@xxxxxxxxxxxxxxxxx> >> wrote: >>> >>> Hi, >>> >>> This seems newish, maybe 4.16 debug kernels were doing it also, but >>> I've seen if for all of 4.17. But what's new, I think, with >>> 4.17.0-0.rc5.git1.1.fc29.x86_64 is I'm seeing a 4 kidle_inject threads >>> each using around 20% CPU per top, and the everything is sluggish, the >>> mouse arrow jerks around on screen, and apps aren't responsive. >>> >>> I'm not sure where to start with troubleshooting; my first thought is >>> to just wait for rc6 and see if it's still happening. >>> >> Is this only visible in debug kernels, or do non debug kernels do it as >> well? > > Only debug kernels so far. I had been using 4.17.0-0.rc4.git4.1 most > of this week with the powerclamp messages, but never the slow down and > without the kinject threads running. 4.17.0-0.rc5.git1.1 is the first > with powerclamp messages, slow downs, and kinject threads running. The > slow down coincides with kinjects, and when those go away, the > sluggishness goes away also. > > I'm going to run 4.16.9 today. > On 4.16.9 today. But no kinject threads spun up, no slow downs. Or possibly I just didn't notice it. May 18 12:28:23 f28h.local kernel: intel_powerclamp: Start idle injection to reduce power May 18 12:28:24 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:25 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:25 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:25 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:25 f28h.local kernel: NOHZ: local_softirq_pending 01 May 18 12:28:25 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:26 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:26 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:26 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:28:27 f28h.local kernel: NOHZ: local_softirq_pending 80 May 18 12:29:20 f28h.local kernel: intel_powerclamp: Stop forced idle injection -- Chris Murphy _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx/message/MVX5CHQCLEAWHV46BVQIRDDQ5DJTXWYH/
