https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192315
--- Comment #3 from Steve Wills <swi...@freebsd.org> --- (In reply to Alexander Motin from comment #1) > Line "Event timer "LAPIC" quality 400" in verbose dmesg tells that LAPIC > timer in your CPU (used by default) is not compatible with CPU C-states > (deep idle states). Can you make sure that C-states are not used on your > system by checking 'sysctl dev.cpu | grep cx_usage' and 'sysctl -a | grep > cx_lowest'? > > Timer code was not changing for quite some time already, while C-states were > enabled by default less time ago, IIRC. meatwad% sysctl dev.cpu | grep cx_usage dev.cpu.0.cx_usage: 15.53% 82.84% 1.61% last 149us dev.cpu.0.cx_usage_counters: 1509220 8046504 156453 dev.cpu.1.cx_usage: 15.21% 77.78% 6.99% last 1803us dev.cpu.1.cx_usage_counters: 462080 2361986 212335 dev.cpu.2.cx_usage: 15.54% 78.02% 6.43% last 1601us dev.cpu.2.cx_usage_counters: 542112 2721324 224459 dev.cpu.3.cx_usage: 14.02% 79.92% 6.05% last 1014us dev.cpu.3.cx_usage_counters: 496716 2831459 214487 dev.cpu.4.cx_usage: 16.10% 77.77% 6.11% last 5971us dev.cpu.4.cx_usage_counters: 467800 2258637 177471 dev.cpu.5.cx_usage: 15.24% 77.76% 6.99% last 612us dev.cpu.5.cx_usage_counters: 462824 2361157 212369 dev.cpu.6.cx_usage: 19.44% 74.33% 6.21% last 872us dev.cpu.6.cx_usage_counters: 640034 2446184 204690 dev.cpu.7.cx_usage: 15.40% 79.04% 5.55% last 51us dev.cpu.7.cx_usage_counters: 464464 2382488 167297 meatwad% sysctl -a | grep cx_lowest hw.acpi.cpu.cx_lowest: C8 dev.cpu.0.cx_lowest: C8 dev.cpu.1.cx_lowest: C8 dev.cpu.2.cx_lowest: C8 dev.cpu.3.cx_lowest: C8 dev.cpu.4.cx_lowest: C8 dev.cpu.5.cx_lowest: C8 dev.cpu.6.cx_lowest: C8 dev.cpu.7.cx_lowest: C8 meatwad% Note this is after setting kern.eventtimer.timer=HPET as mentioned previously. If it matters, I can undo that and run these again. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscr...@freebsd.org"
