On Sunday 10 February 2008 09:05, Dennis Jansen wrote: > I did enable all required kernel features, e.g. the cpuidle framework. > > [ 20.138326] CPU: L1 I cache: 32K, L1 D cache: 32K > [ 20.138436] CPU: L2 cache: 1024K > [ 20.138498] using mwait in idle threads. > [ 20.138567] CPU0: Thermal monitoring handled by SMI > [ 20.138573] CPU: Intel(R) Celeron(R) CPU 530 @ 1.73GHz stepping > 01 > > The only thing unusual I see is: > [ 20.349762] PCI: Using MMCONFIG at e0000000 - efffffff > [ 20.351845] ACPI: EC: Look up EC in DSDT > [ 20.354080] ACPI: BIOS _OSI(Linux) query ignored via DMI > [ 20.354150] ACPI: If "acpi_osi=Linux" works better, please notify > [EMAIL PROTECTED] > [ 20.354985] ACPI: Interpreter enabled > [ 20.355049] ACPI: (supports S0 S3 S4 S5) > [ 20.355301] ACPI: Using IOAPIC for interrupt routing > [ 20.356191] ACPI: EC: non-query interrupt received, switching to > interrupt mode > [ 20.773458] ACPI: EC: GPE = 0x17, I/O: command/status = 0x66, data = 0x62 > [ 20.773528] ACPI: EC: driver started in interrupt mode > [ 20.773623] ACPI: PCI Root Bridge [PCI0] (0000:00) > [ 20.774378] PCI quirk: region 1000-107f claimed by ICH6 ACPI/GPIO/TCO > [ 20.774448] PCI quirk: region 1180-11bf claimed by ICH6 GPIO > > But "acpi_osi=Linux" does not change the situation. It seems like > something prevents the cpu form using the C1/2-states, I only get > about 0.3-1 % C1/2 with 99.7% idle and only 60 wakes/sec in powertop. > But it gets more confusing: > > When I start Skype, it grows to about 4000 wakes/sec, but the C-states > are used _more_: "PowerTOP version 1.9 (C) 2007 Intel > Corporation > Cn Verweildauer P-States (Frequenzen) > C0 (Prozessor läuft) (93,9%) > C1 0,0ms ( 0,0%) > C2 0,0ms ( 6,1%) > Wakes per second : 4070,7 Intervall: 3,0s > 58,9% (372,7) skype : do_nanosleep (hrtimer_wakeup) > 14,8% ( 93,7) <interrupt> : HDA Intel, uhci_hcd:usb2 > 13,0% ( 82,3) <interrupt> : b43, uhci_hcd:usb4 > 2,8% ( 18,0) skype : schedule_timeout (process_timeout) > 2,4% ( 15,0) <interrupt> : acpi > > versus normal load: > C0 (Prozessor läuft) (98,9%)
98.9% C0 means that the system is busy all the time and that looking at idle time is simply not interesting b/c there really isn't any. run top to figure out what is hogging the cpu and kill it. cheers, -Len > C1 0,0ms ( 0,0%) > C2 0,0ms ( 1,1%) > Aufwachen pro Sekunde : 812,6 Intervall: 5,0s > 30,7% ( 49,8) opera : schedule_timeout (process_timeout) > 23,5% ( 38,2) kicker : schedule_timeout (process_timeout) > 9,5% ( 15,4) <interrupt> : uhci_hcd:usb3, ehci_hcd:usb7 > 9,5% ( 15,4) USB Gerät 3-1 : Optical USB Mouse (Logitech) > 7,0% ( 11,4) Xorg : do_setitimer (it_real_fn) > 6,5% ( 10,6) <interrupt> : acpi > > So am I mistaken or is there something wrong? > Any hints what to check / what might help are very welcome. > > Thanks > > _______________________________________________ > Power mailing list > [email protected] > http://www.bughost.org/mailman/listinfo/power > _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
