Following the call for powertop information made to the fedora-test-list
here is some information from several scenarios I regularly use my
laptop in:
Scenario 1) Mains connected, continuous wireless network usage
Scenario 2) Mains connected, continuous 3g usb network usage
Scenario 3) Battery powered, laptop mode (using suggestions given by
powertop via manually run script) light 3g usb network usage
Hope all this helps. The information is collected over about a 4 hour
period in each case.
Hardware - Dell D610
############# Scenario 1 #############
PowerTOP version 1.7 (C) 2007 Intel Corporation
Cn Avg residency (10s) P-states (frequencies)
C0 (cpu running) (12.4%)
C1 0.0ms ( 0.0%) 2.00 Ghz 9.8%
C2 1.5ms (81.9%) 1.60 Ghz 0.2%
C3 1.5ms ( 3.4%) 1333 Mhz 0.4%
C4 1.3ms ( 2.3%) 800 Mhz 89.4%
Wakeups-from-idle per second : 592.1
Power usage (5 minute ACPI estimate) : 0.5 W (221.6 hours left)
Top causes for wakeups:
27.4% (214.6) java : futex_wait (hrtimer_wakeup)
25.6% (200.9) <interrupt> : uhci_hcd:usb2, ipw2200, Intel ICH6
Modem
11.3% ( 88.5) <interrupt> : uhci_hcd:usb1, ehci_hcd:usb5, Intel
ICH6, eth0, [EMAIL PROTECTED]:0000:01:00.0
9.5% ( 74.7) java : schedule_timeout (process_timeout)
6.2% ( 48.9) S06cpuspeed : queue_delayed_work_on
(delayed_work_timer_fn)
5.7% ( 44.4) <interrupt> : i8042
1.8% ( 14.0) mixer_applet2 : schedule_timeout (process_timeout)
1.7% ( 13.0) compiz : schedule_timeout (process_timeout)
1.4% ( 11.0) Xorg : do_setitimer (it_real_fn)
1.3% ( 10.3) /usr/bin/sealer : schedule_timeout (process_timeout)
0.9% ( 7.1) xchat : schedule_timeout (process_timeout)
0.7% ( 5.4) escd : do_nanosleep (hrtimer_wakeup)
0.7% ( 5.4) gdm-binary : do_nanosleep (hrtimer_wakeup)
0.6% ( 4.6) <interrupt> : libata
0.5% ( 4.0) <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)
0.4% ( 3.3) java : sk_reset_timer (tcp_write_timer)
0.4% ( 3.3) gnome-terminal : schedule_timeout (process_timeout)
0.3% ( 2.5) <kernel core> : sk_reset_timer (tcp_delack_timer)
0.3% ( 2.4) gnome-netstatus : schedule_timeout (process_timeout)
0.3% ( 2.3) multiload-apple : schedule_timeout (process_timeout)
0.3% ( 2.2) emerald : schedule_timeout (process_timeout)
0.3% ( 2.0) pcscd : schedule_timeout (process_timeout)
0.2% ( 1.5) wpa_supplicant : schedule_timeout (process_timeout)
0.1% ( 1.0) NetworkManager : tg3_open (tg3_timer)
0.1% ( 1.0) automount : futex_wait (hrtimer_wakeup)
0.1% ( 1.0) cpufreq-applet : schedule_timeout (process_timeout)
0.1% ( 1.0) nm-applet : schedule_timeout (process_timeout)
0.1% ( 1.0) <kernel core> : queue_delayed_work_on
(delayed_work_timer_fn)
0.1% ( 1.0) dhcdbd : schedule_timeout (process_timeout)
0.1% ( 1.0) httpd : schedule_timeout (process_timeout)
0.1% ( 1.0) yum-updatesd : schedule_timeout (process_timeout)
0.1% ( 0.8) Xorg : sk_reset_timer (tcp_delack_timer)
0.1% ( 0.7) gam_server : schedule_timeout (process_timeout)
0.1% ( 0.7) nautilus : schedule_timeout (process_timeout)
0.1% ( 0.7) NetworkManager : schedule_timeout (process_timeout)
0.1% ( 0.6) firefox-bin : futex_wait (hrtimer_wakeup)
0.1% ( 0.6) Xorg : schedule_timeout (process_timeout)
0.1% ( 0.5) <kernel core> : neigh_table_init_no_netlink
(neigh_periodic_timer)
0.1% ( 0.5) <kernel module> : neigh_table_init_no_netlink
(neigh_periodic_timer)
0.1% ( 0.5) events/0 : ipw_gather_stats
(delayed_work_timer_fn)
0.1% ( 0.4) gnome-panel : schedule_timeout (process_timeout)
0.1% ( 0.4) gnome-power-man : schedule_timeout (process_timeout)
0.0% ( 0.3) xscreensaver : schedule_timeout (process_timeout)
0.0% ( 0.3) java : blk_plug_device (blk_unplug_timeout)
0.0% ( 0.3) thunderbird-bin : futex_wait (hrtimer_wakeup)
0.0% ( 0.3) firefox-bin : schedule_timeout (process_timeout)
0.0% ( 0.2) smtpd : inet_twsk_schedule (inet_twdr_hangman)
############# Scenario 1 #############
############# Scenario 2 #############
PowerTOP version 1.7 (C) 2007 Intel Corporation
Cn Avg residency (10s) P-states (frequencies)
C0 (cpu running) (23.8%)
C1 0.0ms ( 0.0%) 2.00 Ghz 11.5%
C2 0.9ms ( 3.9%) 1333 Mhz 0.7%
C3 1.0ms (22.1%) 1067 Mhz 0.5%
C4 1.1ms (50.2%) 800 Mhz 87.1%
Wakeups-from-idle per second : 725.2
Power usage (5 minute ACPI estimate) : 0.1 W (772.6 hours left)
Top causes for wakeups:
40.5% (378.4) <interrupt> : uhci_hcd:usb3
23.3% (217.8) java : futex_wait (hrtimer_wakeup)
9.7% ( 90.7) <interrupt> : uhci_hcd:usb1, ehci_hcd:usb5, Intel
ICH6, eth0, [EMAIL PROTECTED]:0000:01:00.0
7.8% ( 73.1) java : schedule_timeout (process_timeout)
5.2% ( 48.2) S06cpuspeed : queue_delayed_work_on
(delayed_work_timer_fn)
1.6% ( 14.8) compiz : schedule_timeout (process_timeout)
1.5% ( 14.0) wvdial : schedule_timeout (process_timeout)
1.5% ( 13.7) mixer_applet2 : schedule_timeout (process_timeout)
1.1% ( 10.6) firefox-bin : futex_wait (hrtimer_wakeup)
1.1% ( 10.0) strigidaemon : do_nanosleep (hrtimer_wakeup)
1.0% ( 8.9) <interrupt> : libata
0.8% ( 7.3) Xorg : do_setitimer (it_real_fn)
0.7% ( 6.9) <kernel core> : sk_reset_timer (tcp_delack_timer)
0.6% ( 5.3) java : sk_reset_timer (tcp_write_timer)
0.4% ( 4.0) <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)
0.3% ( 3.2) <interrupt> : i8042
0.3% ( 3.2) thunderbird-bin : futex_wait (hrtimer_wakeup)
0.3% ( 2.5) emerald : schedule_timeout (process_timeout)
0.2% ( 2.2) gnome-netstatus : schedule_timeout (process_timeout)
0.2% ( 2.2) multiload-apple : schedule_timeout (process_timeout)
0.1% ( 1.3) Xorg : schedule_timeout (process_timeout)
0.1% ( 1.0) dhcdbd : schedule_timeout (process_timeout)
0.1% ( 1.0) <kernel core> : queue_delayed_work_on
(delayed_work_timer_fn)
0.1% ( 1.0) strigidaemon : schedule_timeout (process_timeout)
0.1% ( 1.0) nm-applet : schedule_timeout (process_timeout)
0.1% ( 1.0) automount : futex_wait (hrtimer_wakeup)
0.1% ( 1.0) cpufreq-applet : schedule_timeout (process_timeout)
0.1% ( 1.0) yum-updatesd : schedule_timeout (process_timeout)
0.1% ( 1.0) httpd : schedule_timeout (process_timeout)
0.1% ( 1.0) NetworkManager : tg3_open (tg3_timer)
0.1% ( 0.7) thunderbird-bin : schedule_timeout (process_timeout)
0.1% ( 0.7) NetworkManager : schedule_timeout (process_timeout)
0.1% ( 0.6) <kernel core> : cfq_completed_request
(cfq_idle_slice_timer)
0.1% ( 0.6) xscreensaver : schedule_timeout (process_timeout)
0.1% ( 0.5) gnome-settings- : schedule_timeout (process_timeout)
0.1% ( 0.5) Xorg : ipw_irq_tasklet (delayed_work_timer_fn)
0.0% ( 0.3) firefox-bin : schedule_timeout (process_timeout)
0.0% ( 0.3) gnome-power-man : schedule_timeout (process_timeout)
0.0% ( 0.2) <kernel core> : inet_twsk_schedule (inet_twdr_hangman)
0.0% ( 0.2) pam_timestamp_c : schedule_timeout (process_timeout)
0.0% ( 0.2) mapping-daemon : schedule_timeout (process_timeout)
0.0% ( 0.2) python : schedule_timeout (process_timeout)
0.0% ( 0.2) init : schedule_timeout (process_timeout)
0.0% ( 0.2) nautilus : schedule_timeout (process_timeout)
0.0% ( 0.2) <kernel core> : page_writeback_init (wb_timer_fn)
0.0% ( 0.2) gam_server : schedule_timeout (process_timeout)
############# Scenario 2 #############
############# Scenario 3 #############
PowerTOP version 1.7 (C) 2007 Intel Corporation
Cn Avg residency (3s) P-states (frequencies)
C0 (cpu running) (48.4%)
C1 0.0ms ( 0.0%) 2.00 Ghz 26.5%
C2 3.4ms ( 2.3%) 1333 Mhz 1.9%
C3 2.2ms (10.1%) 1067 Mhz 3.8%
C4 2.6ms (39.2%) 800 Mhz 67.4%
Wakeups-from-idle per second : 205.7
Power usage (ACPI estimate): 22.1W (0.7 hours) (long term: 20.8W,/0.7h)
Top causes for wakeups:
31.9% (133.3) <interrupt> : uhci_hcd:usb1, ehci_hcd:usb5, Intel
ICH6, eth0, [EMAIL PROTECTED]:0000:01:00.0
17.1% ( 71.3) <interrupt> : i8042
11.6% ( 48.3) S06cpuspeed : queue_delayed_work_on
(delayed_work_timer_fn)
11.5% ( 48.0) totem : do_nanosleep (hrtimer_wakeup)
6.4% ( 26.7) Xorg : do_setitimer (it_real_fn)
3.3% ( 13.7) compiz : schedule_timeout (process_timeout)
3.1% ( 13.0) mixer_applet2 : schedule_timeout (process_timeout)
2.9% ( 12.0) totem : schedule_timeout (process_timeout)
2.8% ( 11.7) <interrupt> : libata
2.3% ( 9.7) strigidaemon : do_nanosleep (hrtimer_wakeup)
0.8% ( 3.3) totem : blk_plug_device (blk_unplug_timeout)
0.7% ( 3.0) gnome-terminal : schedule_timeout (process_timeout)
0.6% ( 2.7) multiload-apple : schedule_timeout (process_timeout)
0.6% ( 2.7) emerald : schedule_timeout (process_timeout)
0.6% ( 2.3) gnome-netstatus : schedule_timeout (process_timeout)
0.2% ( 1.0) <kernel core> : queue_delayed_work_on
(delayed_work_timer_fn)
0.2% ( 1.0) <kernel core> : page_writeback_init (wb_timer_fn)
0.2% ( 1.0) strigidaemon : schedule_timeout (process_timeout)
0.2% ( 1.0) NetworkManager : tg3_open (tg3_timer)
0.2% ( 1.0) automount : futex_wait (hrtimer_wakeup)
0.2% ( 1.0) yum-updatesd : schedule_timeout (process_timeout)
0.2% ( 1.0) dhcdbd : schedule_timeout (process_timeout)
0.2% ( 1.0) httpd : schedule_timeout (process_timeout)
0.2% ( 1.0) nm-applet : schedule_timeout (process_timeout)
0.2% ( 1.0) cpufreq-applet : schedule_timeout (process_timeout)
0.2% ( 1.0) gnome-power-man : schedule_timeout (process_timeout)
0.2% ( 0.7) Xorg : schedule_timeout (process_timeout)
0.2% ( 0.7) <kernel core> : cfq_completed_request
(cfq_idle_slice_timer)
0.1% ( 0.3) init : schedule_timeout (process_timeout)
0.1% ( 0.3) nautilus : schedule_timeout (process_timeout)
0.1% ( 0.3) totem : cfq_completed_request
(cfq_idle_slice_timer)
0.1% ( 0.3) NetworkManager : schedule_timeout (process_timeout)
############# Scenario 3 #############
--
Cheers,
Dave Russell
Senior Consultant - Red Hat Global Professional Services
Mobile: +44 (0) 7725 433024
GPG: 488B 78CD 7E33 12BA D7FC 4B60 322B 449F 475D 6BB1
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