On 2018-03-20 00:54, Philippe Gerum wrote: > On 03/10/2018 11:06 PM, Jan Kiszka wrote: >> On 2018-03-09 08:51, Jan Kiszka wrote: >>> 4.9 requires more work, I've pushed the beginning to wip/4.9 in the same >>> repo. >> >> I started to patch further on this during my flight (wip/4.9 updated), >> noticed that the 4.14-wip queue will need a little bit sysentry tweaking >> as well (missing 64-bit syscall dispatching), and then had to find 4.9 >> in a rather unfortunate state /wrt x86-64: CPUs are no longer idling >> properly. > > Meaning they do not enter any high CSTATE although they should with > CPU_IDLE* properly set, or something breaks when doing so?
This was in KVM, no CSTATEs involved. > > Please share your CONFIG_CPU_IDLE* settings. I'll try to reproduce here. > # # CPU Idle # CONFIG_CPU_IDLE=y CONFIG_CPU_IDLE_GOV_LADDER=y CONFIG_CPU_IDLE_GOV_MENU=y # CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set # CONFIG_INTEL_IDLE is not set TIA, Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux _______________________________________________ Xenomai mailing list Xenomai@xenomai.org https://xenomai.org/mailman/listinfo/xenomai
