Hi,
System is completly idle:
[EMAIL PROTECTED]:/# grep CONFIG_SCHED_MC /boot/config-2.6.24-5-generic
CONFIG_SCHED_MC=y
[EMAIL PROTECTED]:~# echo 1 > /sys/devices/system/cpu/sched_mc_power_savings
[EMAIL PROTECTED]:/sys/devices/system/cpu# cat sched_mc_power_savings
1
Powertop Screenshot:
PowerTOP version 1.9 (C) 2007 Intel Corporation
Cn Verweildauer P-States (Frequenzen)
C0 (Prozessor läuft) ( 7,4%) 1,81 GHz 0,0%
C1 0,0ms ( 0,0%) 1,80 GHz 0,0%
C2 0,0ms ( 0,4%) 1200 MHz 0,0%
C3 1,7ms (92,2%) 800 MHz 100,0%
Aufwachen pro Sekunde : 671,5 Intervall: 10,0s
Stromverbrauch (nach ACPI): 17,3W (0,6 Std.)
Häufigste Ursachen für das Aufwachen:
91,4% (1190,8) <kernel IPI> : Rescheduling interrupts
1,8% ( 23,1) USB Gerät 2-2.1 : Microsoft Wireless Optical Mouse .00
(Microsof
1,5% ( 18,9) <interrupt> : extra timer interrupt
0,8% ( 10,3) wvdial : schedule_timeout (process_timeout)
0,8% ( 10,3) opera : schedule_timeout (process_timeout)
0,8% ( 10,0) <kernel module> : ehci_work (ehci_watchdog)
Seems like it does not help.
Binding Opera and Xorg to the same core helps somehow for the rescheduling, but
as Opera spawns own operapluginwrapper processes this is senseless.
Thanks for investigating.
--
Kernel 2.6.24-2 causing ~1000 wakeups by "Rescheduling Interrupts"
https://bugs.launchpad.net/bugs/177895
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