[Bug 530510] New: hrtimer_start_range_ns (tick_sched_timer) causes 400 wakeups
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@forge.provo.novell.com ReportedBy: sven.burmeister@gmx.net QAContact: qa@suse.de 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 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=530510 Marcus Meissner <meissner@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|bnc-team-screening@forge.pr |kernel-maintainers@forge.pr |ovo.novell.com |ovo.novell.com -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=530510 http://bugzilla.novell.com/show_bug.cgi?id=530510#c1 Jan Ritzerfeld <suse@bugs.jan.ritzerfeld.net> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |suse@bugs.jan.ritzerfeld.ne | |t --- Comment #1 from Jan Ritzerfeld <suse@bugs.jan.ritzerfeld.net> 2009-11-20 17:09:36 UTC --- Same here, using 11.2 final on a ThinkPad R61. This increases the power consumption by 10-15% (2-3W) in comparison to 11.1. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=530510 http://bugzilla.novell.com/show_bug.cgi?id=530510#c Jan Ritzerfeld <suse@bugs.jan.ritzerfeld.net> changed: What |Removed |Added ---------------------------------------------------------------------------- Version|Factory |Final -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=530510 http://bugzilla.novell.com/show_bug.cgi?id=530510#c2 Cristian Rodríguez <crrodriguez@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |crrodriguez@novell.com --- Comment #2 from Cristian Rodríguez <crrodriguez@novell.com> 2009-12-30 13:08:32 UTC --- Same problem here, DELL XPS M1330 cuts battery life significantly. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=530510 http://bugzilla.novell.com/show_bug.cgi?id=530510#c3 Tejas Guruswamy <masterpatricko@gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |masterpatricko@gmail.com --- Comment #3 from Tejas Guruswamy <masterpatricko@gmail.com> 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. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=530510 http://bugzilla.novell.com/show_bug.cgi?id=530510#c4 --- Comment #4 from Ben Cooksley <sourtooth@gmail.com> 2010-01-09 01:10:23 UTC --- My testing indicates that the number of wakeups are significantly reduced outside of my DE. It is still dominates the percentage of wakeups however. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
http://bugzilla.novell.com/show_bug.cgi?id=530510 http://bugzilla.novell.com/show_bug.cgi?id=530510#c5 --- Comment #5 from Jan Ritzerfeld <suse@bugs.jan.ritzerfeld.net> 2010-03-23 08:20:01 UTC --- @Tejas: The kernel bug report mentioned in the ubuntu tracker is https://bugzilla.kernel.org/show_bug.cgi?id=14424 @Ben: After reading the latest comments of the above mentioned kernel bug report, I quit some applications that are sometimes shown within powertop. Especially nepomukservices took about 2W (not strigi, that was inactive)! Quitting opera helped a little bit, too. But, the number of wakeups was not that significantly reduced after that. Thus, the basic idea of the kernel bug report seems to be valid. However, while quitting nepomukservices might be a workaround for some of us, having to quit applications is not. -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c6 Jeff Mahoney <jeffm@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED CC| |jeffm@novell.com Resolution| |WONTFIX --- Comment #6 from Jeff Mahoney <jeffm@novell.com> 2010-09-03 17:25:11 UTC --- openSUSE 11.2 is in security-maintenance mode. Please reopen if this issue still occurs with 11.3 or Factory. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c7 --- Comment #7 from Sven Burmeister <sven.burmeister@gmx.net> 2010-09-03 17:48:52 UTC --- (In reply to comment #6)
openSUSE 11.2 is in security-maintenance mode. Please reopen if this issue still occurs with 11.3 or Factory.
If you wait long enough that's true for every bug is it not? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c8 --- Comment #8 from Jeff Mahoney <jeffm@novell.com> 2010-09-03 17:54:16 UTC --- Point taken. I'm not thrilled about closing a bunch of bugs as WONTFIX either. The fact is that there are only so many of us working on the kernel and only so many hours in the day. Yes this bug should have received more attention, but if we're chasing bugs it should be on a current release. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c9 --- Comment #9 from Sven Burmeister <sven.burmeister@gmx.net> 2010-09-03 18:02:56 UTC --- Not using the mouse and not having any flash-using site open still gives ~200 on 11.3: Häufigste Ursachen für das Aufwachen: 44,3% (193,8) <Kernel Kern> : hrtimer_start_range_ns (tick_sched_timer) 20,9% ( 91,2) <interrupt> : iwl3945 7,8% ( 34,0) <Kernel IPI> : Rescheduling interrupts 4,8% ( 21,0) USB Gerät 1-6 : USB2.0-CRW (Generic) 4,3% ( 18,6) <interrupt> : ehci_hcd:usb1, uhci_hcd:usb2 4,0% ( 17,7) USB Gerät 3-1 : USB RECEIVER (Logitech) 2,3% ( 9,9) <Kernel Kern> : hrtimer_start (tick_sched_timer) 2,1% ( 9,0) wpa_supplicant : queue_delayed_work (delayed_work_timer_fn) 1,6% ( 7,1) <interrupt> : ata_piix 1,3% ( 5,9) nepomukservices : hrtimer_start_range_ns (hrtimer_wakeup) 0,9% ( 4,1) nepomukservices : usb_hcd_poll_rh_status (rh_timer_func) 0,8% ( 3,6) knotify4 : hrtimer_start_range_ns (hrtimer_wakeup) 0,6% ( 2,7) firefox : hrtimer_start_range_ns (hrtimer_wakeup) 0,5% ( 2,2) mysqld : hrtimer_start_range_ns (hrtimer_wakeup) 0,4% ( 1,8) hald : ec_poll (process_timeout) -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c10 Jeff Mahoney <jeffm@novell.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Component|Kernel |Kernel Resolution|WONTFIX | Product|openSUSE 11.2 |openSUSE 11.3 --- Comment #10 from Jeff Mahoney <jeffm@novell.com> 2010-09-03 18:31:38 UTC --- Reopening for 11.3. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c11 --- Comment #11 from Tejas Guruswamy <masterpatricko@gmail.com> 2010-09-03 23:21:39 UTC --- A comment on the kernel bug related to this one https://bugzilla.kernel.org/show_bug.cgi?id=14424#c14 seems to indicate that the problem may actually be in userspace - he says that rebuilding the kernel to have hi-res timers disabled still shows the same number of wakeups but now caused by applications. So still a bug but maybe not a kernel one. Is there an easier way to test with timers disabled than rebuilding the kernel? -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c12 --- Comment #12 from Jeff Mahoney <jeffm@suse.com> 2012-03-05 22:04:37 UTC --- 11.3 is out of maintenance. If you can reproduce this issue with 11.4 or 12.1, please re-open and adjust the Product field to reflect the latest version affected. As for the actual issue, I agree that it's probably a userspace issue. There's no way to disable hi-res timers other than by rebuilding the kernel, so I'm afraid there will be some work in tracking down the application issues. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
https://bugzilla.novell.com/show_bug.cgi?id=530510 https://bugzilla.novell.com/show_bug.cgi?id=530510#c13 Jeff Mahoney <jeffm@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution| |WONTFIX --- Comment #13 from Jeff Mahoney <jeffm@suse.com> 2012-03-05 22:06:48 UTC --- Oops, didn't actually close it. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.
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