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[Bug 530510] New: hrtimer_start_range_ns (tick_sched_timer) causes 400 wakeups
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Wed, 12 Aug 2009 12:33:44 -0600
  • Message-id: <bug-530510-21960@xxxxxxxxxxxxxxxxxxxxxxxx/>
http://bugzilla.novell.com/show_bug.cgi?id=530510


Summary: hrtimer_start_range_ns (tick_sched_timer) causes 400
wakeups
Classification: openSUSE
Product: openSUSE 11.2
Version: Factory
Platform: Other
OS/Version: Other
Status: NEW
Severity: Normal
Priority: P5 - None
Component: Kernel
AssignedTo: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
ReportedBy: sven.burmeister@xxxxxxx
QAContact: qa@xxxxxxx
Found By: ---


User-Agent: Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.1.2)
Gecko/20090730 SUSE/3.5.2-2.2 Firefox/3.5.2

According to powertop hrtimer_start_range_ns causes ~400 wakeups. ~90 for
rescheduling interrupts seems a bit much too.

Häufigste Ursachen für das Aufwachen:
68,0% (419,5) <Kernel Kern> : hrtimer_start_range_ns (tick_sched_timer)
14,1% ( 87,0) <Kernel IPI> : Rescheduling interrupts
3,3% ( 20,4) knotify4 : hrtimer_start_range_ns (hrtimer_wakeup)
3,1% ( 19,1) <interrupt> : uhci_hcd:usb5, HDA Intel,
i915@pci:0000:00:02.0
2,8% ( 17,3) <interrupt> : PS/2 keyboard/mouse/touchpad
2,2% ( 13,8) firefox : hrtimer_start_range_ns (hrtimer_wakeup)
1,6% ( 10,1) <interrupt> : wlan0

rpm -qa | grep kernel
kernel-desktop-base-2.6.31-1.2
linux-kernel-headers-2.6.31-1.1
kernel-desktop-extra-2.6.31-1.2
kernel-desktop-2.6.31-1.2


Reproducible: Always

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