http://bugzilla.novell.com/show_bug.cgi?id=530510
http://bugzilla.novell.com/show_bug.cgi?id=530510#c3
Tejas Guruswamy changed:
What |Removed |Added
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CC| |masterpatricko@gmail.com
--- Comment #3 from Tejas Guruswamy 2010-01-09 00:51:13 UTC ---
Wakeups are significantly higher on 11.2 than on 11.1 running the same
applications on an idle system.
Wakeups-from-idle per second : 403.4 interval: 10.0s
Power usage (ACPI estimate): 26.0W (1.6 hours) (long term: 31.9W,/1.3h)
Top causes for wakeups:
54.2% (412.4) <kernel core> : hrtimer_start_range_ns (tick_sched_timer)
16.9% (128.6) <interrupt> : PS/2 keyboard/mouse/touchpad
12.4% ( 94.4) <kernel IPI> : Rescheduling interrupts
3.9% ( 29.4) firefox : hrtimer_start_range_ns (hrtimer_wakeup)
3.4% ( 26.0) <interrupt> : extra timer interrupt
2.5% ( 19.0) Xorg : hrtimer_start_range_ns (hrtimer_wakeup)
laptop-mode enabled
I see similar issues reported on Ubuntu
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/373245
and Fedora 11 and even Debian with recent kernels.
Kernel bug?
The only change I can think of between 11.1 and 11.2 that might have caused
this is changing from kernel-default to kernel-desktop. Will switch back and
report.
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