PowerTOP Version	v2.1
Kernel Version	Linux version 3.5.6-1-ARCH (tobias@T-POWA-LX) (gcc version 4.7.1 20120721 (prerelease) (GCC) ) #1 SMP PREEMPT Sun Oct 7 19:30:49 CEST 2012
System Name	LENOVO 4177CTO ThinkPad T420
CPU Information	4x Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz
OS Information	Arch Linux

Power Consumption Summary

39.6 wakeups/second, 3.7 GPU ops/second, 0.0 VFS ops/sec, 0.8 GFX wakes/sec and 0.5% CPU use

Usage	Events/s	Category	Description
1922 rpm		Device	Laptop fan
100.0%		Device	Audio codec hwC0D0: Conexant
0.2%	6.8	Process	/usr/bin/X :0 vt1 -auth /tmp/serverauth.hvQIFMuuvc
0.0%	6.3	kWork	console_callback
0.0%	6.3	Interrupt	[6] tasklet(softirq)
0.0%	4.7	Process	i3bar --bar_id=bar-uryuzv --socket=/run/user/1000/i3/ipc-socket.347
0.0%	2.8	Process	i3status -c /home/wgiokas/.i3/status.conf
0.0%	2.8	Timer	tick_sched_timer
0.0%	1.4	Interrupt	[9] acpi
0.0%	1.2	Process	/usr/bin/urxvtd

Processor Idle state report

Package			Core			CPU 0			CPU 1
						C0 active	0.1%		0.0%
						POLL	0.0%	0.0 ms	0.0%		0.0 ms
						C1-SNB	0.1%	0.3 ms	2.8%		55.8 ms
C2 (pc2)	0.3%
C3 (pc3)	0.0%		C3 (cc3)	0.0%		C3-SNB	0.0%	0.3 ms	0.0%		0.0 ms
C6 (pc6)	1.5%		C6 (cc6)	0.0%		C6-SNB	0.0%	0.1 ms	0.0%		0.0 ms
C7 (pc7)	94.5%		C7 (cc7)	96.5%		C7-SNB	99.5%	49.9 ms	97.2%		273.7 ms
			Core			CPU 2			CPU 3
						C0 active	0.1%		0.0%
						POLL	0.0%	0.0 ms	0.0%		0.0 ms
						C1-SNB	2.6%	40.0 ms	0.2%		7.0 ms
			C3 (cc3)	0.0%		C3-SNB	0.0%	0.5 ms	0.0%		0.1 ms
			C6 (cc6)	0.0%		C6-SNB	0.0%	0.0 ms	0.0%		0.0 ms
			C7 (cc7)	97.1%		C7-SNB	97.2%	93.9 ms	99.7%		344.0 ms
			GPU
			Active	0.0%
			RC6	0.0%
			RC6p	0.0%
			RC6pp	100.0%

Processor frequency report

Package			Core			CPU 0		CPU 1
						Actual	804 MHz	799 MHz
Turbo Mode	0.0%		Turbo Mode	0.0%		Turbo Mode	0.0%	0.0%
2.50 GHz	0.0%		2.50 GHz	0.0%		2.50 GHz	0.0%	0.0%
2.21 GHz	0.0%		2.21 GHz	0.0%		2.21 GHz	0.0%	0.0%
2.00 GHz	0.0%		2.00 GHz	0.0%		2.00 GHz	0.0%	0.0%
1.80 GHz	0.0%		1.80 GHz	0.0%		1.80 GHz	0.0%	0.0%
1.60 GHz	0.0%		1.60 GHz	0.0%		1.60 GHz	0.0%	0.0%
1400 MHz	0.0%		1400 MHz	0.0%		1400 MHz	0.0%	0.0%
1200 MHz	0.0%		1200 MHz	0.0%		1200 MHz	0.0%	0.0%
1000 MHz	0.0%		1000 MHz	0.0%		1000 MHz	0.0%	0.0%
800 MHz	0.2%		800 MHz	0.2%		800 MHz	0.2%	0.0%
Idle	99.8%		Idle	99.8%		Idle	99.8%	100.0%
			Core			CPU 2		CPU 3
						Actual	797 MHz	797 MHz
			Turbo Mode	0.0%		Turbo Mode	0.0%	0.0%
			2.50 GHz	0.0%		2.50 GHz	0.0%	0.0%
			2.21 GHz	0.0%		2.21 GHz	0.0%	0.0%
			2.00 GHz	0.0%		2.00 GHz	0.0%	0.0%
			1.80 GHz	0.0%		1.80 GHz	0.0%	0.0%
			1.60 GHz	0.0%		1.60 GHz	0.0%	0.0%
			1400 MHz	0.0%		1400 MHz	0.0%	0.0%
			1200 MHz	0.0%		1200 MHz	0.0%	0.0%
			1000 MHz	0.0%		1000 MHz	0.0%	0.0%
			800 MHz	0.0%		800 MHz	0.0%	0.0%
			Idle	100.0%		Idle	100.0%	100.0%

Overview of Software Power Consumers

Usage	Wakeups/s	GPU ops/s	Disk IO/s	GFX Wakeups/s	Category	Description
1.9 ms/s	6.8				Process	/usr/bin/X :0 vt1 -auth /tmp/serverauth.hvQIFMuuvc
40.0 us/s	6.3				kWork	console_callback
15.7 us/s	6.3				Interrupt	[6] tasklet(softirq)
124.2 us/s	1.4	3.4		0.5	Process	i3bar --bar_id=bar-uryuzv --socket=/run/user/1000/i3/ipc-socket.347
345.1 us/s	2.8				Process	i3status -c /home/wgiokas/.i3/status.conf
78.1 us/s	2.8				Timer	tick_sched_timer
128.8 us/s	1.4				Interrupt	[9] acpi
132.4 us/s	1.1	0.1		0.3	Process	/usr/bin/urxvtd
99.1 us/s	1.1				Interrupt	[45] i915
416.9 us/s	0.9				Interrupt	[1] i8042
90.5 us/s	1.0				Interrupt	[4] block(softirq)
15.6 us/s	0.9				Timer	watchdog_timer_fn
20.1 us/s	0.7				Timer	hrtimer_wakeup
208.0 us/s	0.5				Process	[flush-8:0]
3.7 us/s	0.6				kWork	blk_delay_work
74.6 us/s	0.5				Interrupt	[7] sched(softirq)
0.0 us/s	0.5				kWork	disk_events_workfn
16.3 us/s	0.05	0.3		0.1	Process	[kworker/u:5]
30.3 us/s	0.4				Process	gpg-agent --daemon --write-env-file /home/wgiokas/.gpg-agent-info
16.6 us/s	0.3				kWork	i915_gem_retire_work_handler
13.2 us/s	0.3				Process	/usr/lib/rtkit/rtkit-daemon
1.3 us/s	0.3				kWork	intel_idle_update
168.0 us/s	0.20				Process	systemd-udevd
4.9 us/s	0.25				Process	[watchdog/3]
4.9 us/s	0.25				Process	[watchdog/2]
4.8 us/s	0.25				Process	[watchdog/1]
4.5 us/s	0.25				Process	[watchdog/0]
452.6 us/s	0.05				Process	powertop --html=powertop-3.5.6-1-ARCH.html
172.1 us/s	0.15				Process	[khugepaged]
27.8 us/s	0.20				Process	/usr/sbin/thinkfan -n -s5 -q
22.6 us/s	0.20				Process	[jbd2/sda4-8]
20.8 us/s	0.20				Process	i3
19.5 us/s	0.20				Process	[jbd2/sda3-8]
28.2 us/s	0.15				Process	/usr/lib/systemd/systemd-udevd
3.4 us/s	0.15				Process	[sync_supers]
2.4 us/s	0.15				Timer	sched_rt_period_timer
0.7 us/s	0.15				kWork	neigh_periodic_work
0.7 us/s	0.15				kWork	gen6_pm_rps_work
49.2 us/s	0.10				Interrupt	[42] SATA controller
175.1 us/s					Process	[kworker/0:1]
8.2 us/s	0.05				Process	[ksoftirqd/2]
4.9 us/s	0.05				Process	/usr/lib/GConf/gconfd-2
79.7 us/s					Timer	delayed_work_timer_fn
71.2 us/s					kWork	do_dbs_timer
65.6 us/s					Interrupt	[1] timer(softirq)
62.4 us/s					Process	[kworker/1:1]
43.6 us/s					Timer	i915_hangcheck_elapsed
35.8 us/s					Interrupt	[9] RCU(softirq)
35.2 us/s					Process	[kworker/2:2]
17.0 us/s					Process	[ksoftirqd/0]
15.4 us/s					kWork	vmstat_update
12.2 us/s					Timer	clocksource_watchdog
11.9 us/s					Process	[kworker/3:2]
10.0 us/s					Process	[migration/1]
9.5 us/s					Process	[ksoftirqd/3]
8.4 us/s					Process	[migration/0]
6.3 us/s					Process	[migration/2]
5.5 us/s					Process	[migration/3]
4.5 us/s					Process	[ksoftirqd/1]
2.7 us/s					Timer	process_timeout
2.1 us/s					Timer	intel_gpu_idle_timer
1.6 us/s					Timer	commit_timeout
1.5 us/s					Timer	intel_crtc_idle_timer
1.3 us/s					Timer	sync_supers_timer_fn
0.6 us/s					Interrupt	[8] hrtimer(softirq)
0.1 us/s					Timer	blk_rq_timed_out_timer

Device Power Report

The battery reports a discharge rate of 8.30 W

Usage	Device name
1922 rpm	Laptop fan
100.0%	Audio codec hwC0D0: Conexant
0.5%	CPU use
3.7 ops/s	GPU
100.0%	Thinkpad light
1.6%	Display backlight
0.0 pkts/s	Network interface: wlan0 (iwlwifi)
0.0%	Display backlight
100.0%	PCI Device: Intel Corporation 82579LM Gigabit Network Connection
100.0%	PCI Device: Ricoh Co Ltd MMC/SD Host Controller
100.0%	PCI Device: Intel Corporation Centrino Wireless-N 1000 [Condor Peak]
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
100.0%	PCI Device: Intel Corporation QM67 Express Chipset Family LPC Controller
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller
100.0%	PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
100.0%	USB device: Broadcom Bluetooth Device (Broadcom Corp)
100.0%	PCI Device: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
100.0%	PCI Device: Intel Corporation 2nd Generation Core Processor Family DRAM Controller
100.0%	USB device: usb-device-8087-0024
100.0%	USB device: EHCI Host Controller
100.0%	Radio device: btusb
100.0%	Radio device: iwlwifi
100.0%	Radio device: thinkpad_acpi
0.0 pkts/s	Network interface: eth0 (e1000e)
0.0%	USB device: usb-device-8087-0024
0.0%	USB device: EHCI Host Controller
0.0%	USB device: Integrated Camera (Chicony Electronics Co., Ltd.)

Process device activity

Process	Device
systemd	/dev/autofs
	/dev/kmsg
systemd-journal	/dev/kmsg
	/dev/kmsg
systemd-logind	/dev/input/event1
	/dev/input/event2
	/dev/input/event3
	/dev/input/event5
	/dev/input/event7
X	/dev/dri/card0
	/dev/input/event0
	/dev/input/event13
	/dev/input/event14
	/dev/input/event2
	/dev/input/event3
	/dev/input/event5
	/dev/input/event6
	/dev/input/event7
	/dev/vga_arbiter
pulseaudio	/dev/snd/controlC0
	/dev/snd/controlC0
	/dev/snd/controlC0

Software Settings in need of Tuning

Wireless Power Saving for interface wlan0	iw dev wlan0 set power_save off
Enable SATA link power management for /dev/sda	echo 'min_power' > '/sys/class/scsi_host/host0/link_power_management_policy';
NMI watchdog should be turned off	echo '0' > '/proc/sys/kernel/nmi_watchdog';
VM writeback timeout	echo '1500' > '/proc/sys/vm/dirty_writeback_centisecs';
Enable Audio codec power management	echo '1' > '/sys/module/snd_hda_intel/parameters/power_save';
Autosuspend for USB device Broadcom Bluetooth Device [Broadcom Corp]	echo 'auto' > '/sys/bus/usb/devices/1-1.4/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller	echo 'auto' > '/sys/bus/pci/devices/0000:00:1b.0/power/control';
Runtime PM for PCI Device Intel Corporation 2nd Generation Core Processor Family DRAM Controller	echo 'auto' > '/sys/bus/pci/devices/0000:00:00.0/power/control';
Runtime PM for PCI Device Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller	echo 'auto' > '/sys/bus/pci/devices/0000:00:02.0/power/control';
Runtime PM for PCI Device Intel Corporation 82579LM Gigabit Network Connection	echo 'auto' > '/sys/bus/pci/devices/0000:00:19.0/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2	echo 'auto' > '/sys/bus/pci/devices/0000:00:1a.0/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2	echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.1/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5	echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.4/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1	echo 'auto' > '/sys/bus/pci/devices/0000:00:1d.0/power/control';
Runtime PM for PCI Device Intel Corporation QM67 Express Chipset Family LPC Controller	echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.0/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller	echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.2/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller	echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.3/power/control';
Runtime PM for PCI Device Intel Corporation Centrino Wireless-N 1000 [Condor Peak]	echo 'auto' > '/sys/bus/pci/devices/0000:03:00.0/power/control';
Runtime PM for PCI Device Ricoh Co Ltd MMC/SD Host Controller	echo 'auto' > '/sys/bus/pci/devices/0000:0d:00.0/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1	echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.0/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4	echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.3/power/control';
Wake-on-lan status for device eth0	ethtool -s eth0 wol d;

Untunable Software Issues

PCI Device Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 has no runtime power management

Optimal Tuned Software Settings

Bluetooth device interface status

Autosuspend for USB device Integrated Camera [Chicony Electronics Co., Ltd.]

Autosuspend for USB device EHCI Host Controller [usb1]

Autosuspend for USB device EHCI Host Controller [usb2]

Autosuspend for unknown USB device 1-1 (8087:0024)

Autosuspend for unknown USB device 2-1 (8087:0024)

Wake-on-lan status for device wlan0

Using 'ondemand' cpufreq governor