Sebastien Roy wrote: >> And it seems there are some gnome desktop bugs, that >> cause high cpu usage, like this one: >> http://defect.opensolaris.org/bz/show_bug.cgi?id=10002 > > Possibly related, but prstat doesn't show anything interesting. There's > nothing actively using very much CPU at all. It may not be anything in user space. From your previous posting, powertop reported as wakeup sources:
Wakeups-from-idle per second: 632.7 interval: 5.0s Power usage (ACPI estimate): 0.000W (running on AC power, fully charged) Top causes for wakeups: 30.0% (189.8) <kernel> : genunix`cv_wakeup 18.3% (115.6) sched : <xcalls> unix`dtrace_xcall_func 15.8% (100.0) <kernel> : genunix`clock 4.8% ( 30.1) <interrupt> : iwk#0 2.4% ( 15.2) <kernel> : uhci`uhci_handle_root_hub_status_change 1.6% ( 10.2) <kernel> : genunix`delay_wakeup 0.6% ( 4.0) <kernel> : genunix`schedpaging 0.6% ( 4.0) <kernel> : uhci`uhci_cmd_timeout_hdlr 0.6% ( 3.8) <kernel> : ehci`ehci_handle_root_hub_status_change On my system, with Xorg running and the P-state at the lowest level: Wakeups-from-idle per second: 1856.1 interval: 5.0s no ACPI power usage estimate available Top causes for wakeups: 75.3% (1397.5) sched : <xcalls> unix`dtrace_xcall_func 7.1% (131.3) <kernel> : genunix`cv_wakeup One possibility is starting Xorg opens USB input devices. What happens to the wakeup rate from uchi/ehci when you start unplugging connected USB devices?
