eaglex wrote: > Hello, > > Any thoughts on the below powertop output? Is it good? is it bad? any > room for improvements?
what do you think yourself? :) > ---------------- cut ------------------------------ > > Cn Avg residency P-states (frequencies) > C0 (cpu running) ( 9,8%) 1,81 Ghz 2,5% > C1 0,0ms ( 0,0%) 1,80 Ghz 0,0% > C2 0,0ms ( 0,0%) 1200 Mhz 1,1% > C3 3,3ms (90,2%) 800 Mhz 96,4% ok, there is almost 10% cpu utilization going on. If this is an 'idle' box than that is very bad. not having more than 3-4ms in C3 also means that the CPU cannot conserve power that well. > Wakeups-from-idle per second : 276,7 interval: 10,0s 270 wakeups per second is really quite bad too. on my xfce4 desktop I get maybe 100-110 with firefox/thunderbird and a few other apps loaded. > Power usage (ACPI estimate): 22,0W (1,9 hours) (long term: 27,6W,/1,5h) can't say much about this value if we don't know what type of laptop/system this is. 1.5h of battery life isn't that much for a full battery, and 22W is certainly not low. > Top causes for wakeups: > 17,1% ( 79,9) <interrupt> : extra timer interrupt > 14,4% ( 67,1) firefox-bin : futex_wait (hrtimer_wakeup) > 13,0% ( 60,8) <interrupt> : uhci_hcd:usb3, tifm_7xx1, yenta, > ohci1394, nvidia > 11,5% ( 53,7) firefox-bin : schedule_timeout (process_timeout) > 9,5% ( 44,5) <interrupt> : acpi acpi may be fixed with a bios upgrade... It can sometimes be fixed. > 7,5% ( 35,2) <interrupt> : uhci_hcd:usb6 > 7,5% ( 35,2) USB device 6-1 : PS/2+USB Mouse () > 6,3% ( 29,4) <kernel IPI> : Rescheduling interrupts > 4,4% ( 20,3) <interrupt> : iwl3945 many many sources are above 10-20 wakeups per second. that's detrimental as these timers do not go off at the same time. do you need yenta (pcmcia)? Have you turned on iwl3945 power saving? USB suspend? Tried the opensource 'nv' driver instead of the nvidia driver? Also, stop using your mouse ;) > 3,1% ( 14,6) X : do_setitimer (it_real_fn) > 0,9% ( 4,0) <kernel core> : usb_hcd_poll_rh_status (rh_timer_func) > 0,9% ( 4,0) xfce4-netload-p : schedule_timeout (process_timeout) > 0,8% ( 3,6) soffice.bin : schedule_timeout (process_timeout) > 0,5% ( 2,3) irssi : schedule_timeout (process_timeout) > 0,4% ( 2,0) xfce4-battery-p : schedule_timeout (process_timeout) > 0,3% ( 1,6) <interrupt> : PS/2 keyboard/mouse/touchpad > 0,2% ( 1,0) ntpd : do_setitimer (it_real_fn) > 0,2% ( 1,0) xfce4-panel : schedule_timeout (process_timeout) > 0,2% ( 1,0) wpa_supplicant : schedule_timeout (process_timeout) > 0,2% ( 1,0) X : nv_start_rc_timer (nv_kern_rc_timer) > 0,2% ( 0,9) xfce4-mixer-plu : schedule_timeout (process_timeout) > 0,1% ( 0,5) iwl3945 : ieee80211_sta_work (ieee80211_sta_timer) > 0,1% ( 0,5) wpa_cli : schedule_timeout (process_timeout) > 0,1% ( 0,4) <kernel core> : sk_reset_timer (tcp_delack_timer) > 0,1% ( 0,3) <kernel core> : rs_tx_status (iwl3945_bg_rate_scale_flush) > 0,0% ( 0,2) <kernel core> : neigh_table_init_no_netlink > (neigh_periodic_timer) > 0,0% ( 0,2) pidgin : schedule_timeout (process_timeout) > 0,0% ( 0,2) X : schedule_timeout (process_timeout) > 0,0% ( 0,2) init : schedule_timeout (process_timeout) > 0,0% ( 0,2) firefox-bin : sk_reset_timer (tcp_write_timer) > 0,0% ( 0,1) gconfd-2 : schedule_timeout (process_timeout) > 0,0% ( 0,1) <kernel core> : inet_initpeers (peer_check_expire) > 0,0% ( 0,1) <kernel module> : sta_info_start (sta_info_cleanup) > 0,0% ( 0,1) soffice.bin : futex_wait (hrtimer_wakeup) > 0,0% ( 0,1) xfdesktop : schedule_timeout (process_timeout) > 0,0% ( 0,1) screen : do_setitimer (it_real_fn) considering all the applications you are running it's not terribly bad, but it's definately not good either. You probably want to remove the `xfce4-netload-plugin` for instance, and take a good look at which applications you really need to run. Cheers, Auke _______________________________________________ Power mailing list [email protected] http://www.bughost.org/mailman/listinfo/power
