# On BATTERY, policy: powersave (800MHz)

[root@cytrynka:~]$ powertop -d
PowerTOP 1.11   (C) 2007, 2008 Intel Corporation 

Collecting data for 15 seconds 


Cn	          Avg residency
C0 (cpu running)        ( 4.0%)
polling		  0.0ms ( 0.0%)
C1 mwait	 29.8ms (69.9%)
C3 mwait	  0.8ms (26.1%)
P-states (frequencies)
  1.74 Ghz     0.0%
  1333 Mhz     0.0%
  1067 Mhz     0.0%
   800 Mhz   100.0%
Wakeups-from-idle per second : 336.1	interval: 15.0s
no ACPI power usage estimate available
Top causes for wakeups:
  21.8% ( 13.5)       <interrupt> : i915@pci:0000:00:02.0 
  18.6% ( 11.5)      <kernel IPI> : Rescheduling interrupts 
  12.9% (  8.0)     <kernel core> : usb_hcd_poll_rh_status (rh_timer_func) 
  10.1% (  6.3)       <interrupt> : PS/2 keyboard/mouse/touchpad 
   8.3% (  5.1)       <interrupt> : acpi 
   4.9% (  3.0)       <interrupt> : extra timer interrupt 
   3.5% (  2.1)       <interrupt> : ehci_hcd:usb2, uhci_hcd:usb5, mmc0 
   3.2% (  2.0)     <kernel core> : clocksource_watchdog (clocksource_watchdog) 
   2.6% (  1.6)     <kernel core> : ehci_work (ehci_watchdog) 
   1.9% (  1.2)      <kernel IPI> : TLB shootdowns 
   1.7% (  1.1)   USB device  2-3 : DataTraveler G2 (Kingston) 
   1.6% (  1.0)                 X : i915_add_request (delayed_work_timer_fn) 
   1.5% (  0.9)           fluxbox : schedule_hrtimeout_range (hrtimer_wakeup) 
   1.5% (  0.9)   hald-addon-stor : schedule_hrtimeout_range (hrtimer_wakeup) 
   1.3% (  0.8)       <interrupt> : ahci 
   0.8% (  0.5)           iwl3945 : worker_thread (delayed_work_timer_fn) 
   0.8% (  0.5)           leafpad : schedule_hrtimeout_range (hrtimer_wakeup) 
   0.5% (  0.3)                 X : do_setitimer (it_real_fn) 
   0.4% (  0.3)      kacpi_notify : acpi_ex_system_do_suspend (process_timeout) 
   0.4% (  0.3)                 X : schedule_hrtimeout_range (hrtimer_wakeup) 
   0.2% (  0.1)          terminal : schedule_hrtimeout_range (hrtimer_wakeup) 
   0.2% (  0.1)     <kernel core> : run_timer_softirq (sta_info_cleanup) 
   0.2% (  0.1)     <kernel core> : neigh_periodic_timer (neigh_periodic_timer) 
   0.2% (  0.1)                 X : neigh_periodic_timer (neigh_periodic_timer) 
   0.2% (  0.1)           leafpad : futex_wait_queue_me (hrtimer_wakeup) 
   0.2% (  0.1)              init : schedule_hrtimeout_range (hrtimer_wakeup) 
   0.1% (  0.1)          events/1 : pty_write (delayed_work_timer_fn) 
   0.1% (  0.1)              bash : enqueue_task_rt (sched_rt_period_timer) 
   0.1% (  0.1)           pdflush : wb_kupdate (wb_timer_fn) 

A USB device is active 100.0% of the time:
USB device  6-2 : Foxconn Bluetooth 2.0 plus EDR (Broadcom Corp)

Suggestion: Enable USB autosuspend by pressing the U key or adding 
usbcore.autosuspend=1 to the kernel command line in the grub config

Suggestion: Enable SATA ALPM link power management via: 
  echo min_power > /sys/class/scsi_host/host0/link_power_management_policy
or press the S key.

Suggestion: Disable 'hal' from polling your cdrom with:  
hal-disable-polling --device /dev/cdrom 'hal' is the component that auto-opens a
window if you plug in a CD but disables SATA power saving from kicking in.

Recent USB suspend statistics
Active  Device name
100.0%	USB device  2-3 : DataTraveler G2 (Kingston)
100.0%	USB device  6-2 : Foxconn Bluetooth 2.0 plus EDR (Broadcom Corp)
100.0%	USB device  4-1 : Fingerprint Sensor ()
  0.0%	USB device usb7 : UHCI Host Controller (Linux 2.6.31-ARCH uhci_hcd)
100.0%	USB device usb6 : UHCI Host Controller (Linux 2.6.31-ARCH uhci_hcd)
  0.0%	USB device usb5 : UHCI Host Controller (Linux 2.6.31-ARCH uhci_hcd)
100.0%	USB device usb4 : UHCI Host Controller (Linux 2.6.31-ARCH uhci_hcd)
  0.0%	USB device usb3 : UHCI Host Controller (Linux 2.6.31-ARCH uhci_hcd)
100.0%	USB device usb2 : EHCI Host Controller (Linux 2.6.31-ARCH ehci_hcd)
  0.0%	USB device usb1 : EHCI Host Controller (Linux 2.6.31-ARCH ehci_hcd)