Hi Magnus, thanks for your reply. The behaviour of my machine has changed since yesterday! :-( I now get this high wake up load without starting FireFox. Immediatley after boot the machine will show <150 wakeups per second. Then it will start to show much more.
My problem is that the output of powertop is not giving me any information about where these wakeups are coming from. The output of powertop -d is below. Can any one tell me which process is causing 5000 wakeups? [EMAIL PROTECTED] ~]# powertop -d PowerTOP 1.9 (C) 2007 Intel Corporation Collecting data for 15 seconds Cn Avg residency C0 (cpu running) (19.2%) C1 0.0ms ( 0.0%) C2 0.0ms ( 0.0%) C3 0.1ms (80.8%) P-states (frequencies) 2.51 Ghz 3.9% 2.50 Ghz 0.0% 2.00 Ghz 0.0% 800 Mhz 96.1% Wakeups-from-idle per second : 5860.5 interval: 15.0s Power usage (ACPI estimate): 18.3W (2.3 hours) Top causes for wakeups: 60.3% ( 50.5) <interrupt> : extra timer interrupt 19.4% ( 16.3) <kernel IPI> : Rescheduling interrupts 15.3% ( 12.8) <interrupt> : ata_piix, eth0, iwl4965 1.4% ( 1.2) <kernel module> : usb_hcd_poll_rh_status (rh_timer_func) 0.7% ( 0.6) iscsid : schedule_timeout (process_timeout) 0.4% ( 0.3) multiload-apple : schedule_timeout (process_timeout) 0.4% ( 0.3) gnome-terminal : schedule_timeout (process_timeout) 0.2% ( 0.2) im-info-daemon : do_nanosleep (hrtimer_wakeup) 0.2% ( 0.1) NetworkManager : tg3_open (tg3_timer) 0.2% ( 0.1) netspeed_applet : schedule_timeout (process_timeout) 0.2% ( 0.1) iscsid : do_nanosleep (hrtimer_wakeup) 0.2% ( 0.1) setroubleshootd : schedule_timeout (process_timeout) 0.2% ( 0.1) NetworkManager : schedule_timeout (process_timeout) 0.2% ( 0.1) Xorg : schedule_timeout (process_timeout) 0.1% ( 0.1) <interrupt> : PS/2 keyboard/mouse/touchpad 0.1% ( 0.1) kerneloops : schedule_timeout (process_timeout) 0.1% ( 0.1) clock-applet : schedule_timeout (process_timeout) 0.1% ( 0.1) mount : start_this_handle (commit_timeout) 0.1% ( 0.1) <kernel core> : neigh_table_init_no_netlink (neigh_periodic_timer) 0.1% ( 0.1) pulseaudio : schedule_timeout (process_timeout) 0.1% ( 0.1) iwl4965 : ieee80211_sta_work (ieee80211_sta_timer) 0.1% ( 0.1) gnome-panel : schedule_timeout (process_timeout) 0.1% ( 0.1) <kernel module> : neigh_table_init_no_netlink (neigh_periodic_timer) 0.1% ( 0.1) libvirtd : br_stp_enable_bridge (br_hello_timer_expired) 0.1% ( 0.1) <kernel module> : sta_info_start (sta_info_cleanup) 0.1% ( 0.1) top : schedule_timeout (process_timeout) [EMAIL PROTECTED] ~]# Thanks Felix
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