System Information

PowerTOP Version v2.2
Kernel Version Linux version 3.7.7-201.fc18.x86_64 (mockbuild@bkernel01.phx2.fedoraproject.org) (gcc version 4.7.2 20121109 (Red Hat 4.7.2-8) (GCC) ) #1 SMP Tue Feb 12 22:35:01 UTC 2013
System Name Dell Inc. 0675PR 01
CPU Information 4x Intel(R) Core(TM) i5-2520M CPU @ 2.50GHz
OS Information Fedora release 18 (Spherical Cow)

Power Consumption Summary

584.2 wakeups/second, 5.5 GPU ops/second, 0.0 VFS ops/sec, 40.7 GFX wakes/sec and 106.2% CPU use

Usage Events/s Category Description
0.1% 230.3 Timer tick_sched_timer
47.4% 0.6 kWork output_poll_execute
35.6% 30.9 kWork i915_hotplug_work_func
0.1% 152.2 Interrupt [7] sched(softirq)
0.0% 0.5 Process /usr/bin/pulseaudio --start
100.0% Device Audio codec hwC0D3: Intel
0.1% 67.3 Interrupt [43] i915
12.2% 1.2 Process [kworker/1:2]
0.1% 33.7 Process clipit
0.4% 26.6 Process /usr/bin/cinnamon
7.3% 1.1 Process [kworker/0:2]

Processor Idle state report

Package 0   Core 0   CPU 0 CPU 2
    C0 active 28.9%   1.6%  
    POLL 0.0% 0.0 ms 0.0% 0.0 ms
    C1-SNB 7.1% 0.9 ms 3.2% 3.4 ms
C2 (pc2) 0.0%    
C3 (pc3) 0.0%   C3 (cc3) 8.5%   C3-SNB 9.1% 1.0 ms 0.0% 0.9 ms
C6 (pc6) 0.0%   C6 (cc6) 1.3%   C6-SNB 1.3% 1.2 ms 0.0% 1.2 ms
C7 (pc7) 0.0%   C7 (cc7) 52.9%   C7-SNB 56.0% 2.0 ms 95.2% 20.5 ms
    Core 1   CPU 1 CPU 3
      C0 active 29.4%   0.3%  
      POLL 0.0% 0.0 ms 0.0% 0.0 ms
      C1-SNB 1.4% 0.7 ms 3.7% 17.7 ms
     
    C3 (cc3) 2.0%   C3-SNB 1.9% 1.7 ms 0.0% 0.9 ms
    C6 (cc6) 1.3%   C6-SNB 1.3% 1.5 ms 0.0% 1.0 ms
    C7 (cc7) 64.6%   C7-SNB 68.3% 2.4 ms 95.9% 54.8 ms
    GPU 0  
     
    Powered On 100.0%  
    RC6 0.0%  
    RC6p 0.0%  
    RC6pp 0.0%  
     
     

Processor Frequency Report

Package 0   Core 0   CPU 0 CPU 2
    Actual 2.7 GHz 2.7 GHz
Turbo Mode 13.6%   Turbo Mode 6.4%   Turbo Mode 6.0% 0.4%
2.50 GHz 2.7%   2.50 GHz 1.2%   2.50 GHz 1.2% 0.1%
2.00 GHz 1.0%   2.00 GHz 0.5%   2.00 GHz 0.5% 0.0%
1.80 GHz 3.1%   1.80 GHz 1.3%   1.80 GHz 1.0% 0.3%
1.60 GHz 4.0%   1.60 GHz 1.8%   1.60 GHz 1.8% 0.0%
1400 MHz 1.3%   1400 MHz 0.6%   1400 MHz 0.6% 0.0%
1200 MHz 3.8%   1200 MHz 1.6%   1200 MHz 1.5% 0.1%
1000 MHz 1.1%   1000 MHz 0.6%   1000 MHz 0.5% 0.0%
800 MHz 8.0%   800 MHz 3.6%   800 MHz 3.1% 0.5%
Idle 61.3%   Idle 82.5%   Idle 83.8% 98.6%
    Core 1   CPU 1 CPU 3
      Actual 2.7 GHz 2.7 GHz
    Turbo Mode 8.2%   Turbo Mode 8.1% 0.1%
    2.50 GHz 1.7%   2.50 GHz 1.6% 0.0%
    2.00 GHz 0.5%   2.00 GHz 0.5% 0.0%
    1.80 GHz 1.9%   1.80 GHz 1.9% 0.0%
    1.60 GHz 2.2%   1.60 GHz 2.2% 0.0%
    1400 MHz 0.8%   1400 MHz 0.8% 0.0%
    1200 MHz 2.3%   1200 MHz 2.2% 0.1%
    1000 MHz 0.5%   1000 MHz 0.5% 0.0%
    800 MHz 4.4%   800 MHz 4.4% 0.1%
    Idle 77.5%   Idle 77.7% 99.7%

Overview of Software Power Consumers

Usage Wakeups/s GPU ops/s Disk IO/s GFX Wakeups/s Category Description
1.4 ms/s 230.3 Timer tick_sched_timer
473.6 ms/s 0.10 0.5 kWork output_poll_execute
356.1 ms/s 30.4 0.5 kWork i915_hotplug_work_func
1.2 ms/s 152.2 Interrupt [7] sched(softirq)
53.6 us/s 0.5 Process /usr/bin/pulseaudio --start
0.9 ms/s 67.3 Interrupt [43] i915
121.9 ms/s 1.2 0.1 1.5 Process [kworker/1:2]
0.8 ms/s 33.7 22.7 Process clipit
4.3 ms/s 22.8 3.8 14.0 Process /usr/bin/cinnamon
72.7 ms/s 1.1 0.1 1.1 Process [kworker/0:2]
443.9 us/s 10.3 Interrupt [6] tasklet(softirq)
51.8 us/s 7.8 Timer hrtimer_wakeup
48.4 us/s 6.3 Process [rcu_sched]
2.0 ms/s 4.3 Process /usr/bin/Xorg :0 -background none -verbose -auth /var/run/gdm/auth-for-gdm-RDW4D7/database -seat seat0 -nolisten tcp vt1
10.6 ms/s 0.05 0.2 Process [kworker/2:0]
6.9 ms/s 0.6 0.7 Process [kworker/u:5]
176.0 us/s 2.1 0.5 0.7 Process roxterm
25.4 us/s 2.6 Interrupt [4] block(softirq)
31.2 us/s 2.6 Process iscsid
10.6 us/s 1.7 Timer it_real_fn
670.1 us/s 0.5 0.1 kWork disk_events_workfn
1.9 ms/s Timer wl_timer
162.5 us/s 0.6 Process /usr/sbin/NetworkManager --no-daemon
2.5 us/s 0.7 kWork intel_unpin_work_fn
5.3 us/s 0.6 Process [wl_event_handle]
1.2 ms/s 0.05 0.1 Process [kworker/3:1]
0.6 us/s 0.5 kWork mei_timer
44.1 us/s 0.4 Process /usr/sbin/wpa_supplicant -u -f /var/log/wpa_supplicant.log -c /etc/wpa_supplicant/wpa_supplicant.conf -u -f /var/log/wpa_suppli
4.0 us/s 0.25 kWork i915_gem_retire_work_handler
2.6 us/s 0.25 Process [watchdog/3]
1.2 us/s 0.25 Process [watchdog/2]
0.2 us/s 0.25 kWork blk_delay_work
445.5 us/s 0.05 Process powertop --html
570.7 us/s kWork do_dbs_timer
30.3 us/s 0.20 Process /usr/libexec/gnome-settings-daemon
15.1 us/s 0.20 Process sendmail: accepting connections
520.7 us/s Timer process_timeout
0.1 us/s 0.20 kWork cfq_kick_queue
465.0 us/s Process [migration/2]
464.6 us/s Process [migration/1]
17.6 us/s 0.15 Interrupt [42] SATA controller
11.2 us/s 0.15 Process [jbd2/sda10-8]
3.8 us/s 0.15 Timer watchdog_timer_fn
3.4 us/s 0.15 Process /usr/libexec/rtkit-daemon
0.5 us/s 0.15 Timer sched_rt_period_timer
329.0 us/s Process [migration/3]
44.2 us/s 0.10 Process /usr/sbin/irqbalance
277.4 us/s Timer delayed_work_timer_fn
14.3 us/s 0.10 Process /usr/lib/systemd/systemd-udevd
13.5 us/s 0.10 Process /usr/libexec/tracker-store
1.5 us/s 0.10 Process [khugepaged]
1.4 us/s 0.10 Process /usr/bin/ssh-agent /bin/sh -c exec -l /bin/bash -c "/usr/bin/gnome-session --session=cinnamon"
0.9 us/s 0.10 Process [watchdog/1]
0.7 us/s 0.10 kWork neigh_periodic_work
207.0 us/s Interrupt [17] eth0
40.9 us/s 0.05 Process /usr/sbin/crond -n
23.8 us/s 0.05 Process systemd-udevd
149.3 us/s Process [migration/0]
15.6 us/s 0.05 Process /usr/libexec/evolution/3.6/evolution-alarm-notify
139.0 us/s Process [kworker/1:0]
11.1 us/s 0.05 Process [flush-8:0]
8.3 us/s 0.05 Process /usr/bin/gnome-session --session=cinnamon
5.1 us/s 0.05 Process gnome-screensaver
1.6 us/s 0.05 Process /usr/libexec/packagekitd
1.4 us/s 0.05 kWork __cfg80211_scan_done
0.9 us/s 0.05 Process /sbin/rpcbind -w
0.3 us/s 0.05 Process [ksoftirqd/2]
0.2 us/s 0.05 Process [watchdog/0]
105.8 us/s Process /bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation
88.3 us/s Interrupt [17] firewire_ohci
83.9 us/s Interrupt [1] timer(softirq)
69.8 us/s Process [kworker/0:1]
60.8 us/s Process [ksoftirqd/0]
47.7 us/s Interrupt [17] ehci_hcd:usb2
47.2 us/s Process nm-applet
32.9 us/s Interrupt [9] RCU(softirq)
27.7 us/s Process [kworker/u:4]
11.4 us/s Process [kworker/2:2]
10.0 us/s Process /bin/dbus-daemon --fork --print-pid 4 --print-address 6 --session
7.4 us/s kWork vmstat_update
4.7 us/s Interrupt [3] net_rx(softirq)
4.4 us/s Timer clocksource_watchdog
3.6 us/s Process /usr/bin/gnome-keyring-daemon --daemonize --login
2.0 us/s Process [kworker/1:1H]
1.9 us/s Process [kworker/3:2]
1.4 us/s Timer tg3_timer
0.4 us/s Timer writeout_period
0.3 us/s kWork wireless_nlevent_process
0.3 us/s Process [kworker/1:3]
0.3 us/s Timer commit_timeout
0.2 us/s Timer cfq_idle_slice_timer
0.0 us/s Timer blk_rq_timed_out_timer

Device Power Report

Usage Device name
106.2% CPU use
100.0% Audio codec hwC0D0: IDT (pulseaudio )
100.0% Audio codec hwC0D3: Intel
5.5 ops/s GPU
100.0% Display backlight
100.0% Display backlight
100.0% USB device: DW375 Bluetooth Module (Dell Computer Corp)
100.0% PCI Device: O2 Micro, Inc. O2 Flash Memory Card
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% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1
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% Radio device: wl
100.0% Radio device: btusb
100.0% PCI Device: O2 Micro, Inc. 1394 OHCI Compliant Host Controller
100.0% USB device: USB Optical Mouse (Logitech)
100.0% USB device: EHCI Host Controller
100.0% USB device: usb-device-8087-0024
100.0% PCI Device: O2 Micro, Inc. Integrated MMC/SD controller
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1
100.0% PCI Device: Broadcom Corporation NetXtreme BCM5761 Gigabit Ethernet PCIe
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 3
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
100.0% PCI Device: Intel Corporation HM65 Express Chipset Family LPC Controller
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
100.0% PCI Device: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller
100.0% PCI Device: Broadcom Corporation BCM43228 802.11a/b/g/n
100.0% PCI Device: O2 Micro, Inc. Device 8134
0.5 pkts/s Network interface: eth0 (wl)
0.0 pkts/s Network interface: p6p1 (tg3)
0.0% USB device: EHCI Host Controller
0.0% USB device: usb-device-8087-0024

Process device activity

Process Device
systemd /dev/autofs
systemd-journal /dev/kmsg
/dev/kmsg
bluetoothd /dev/rfkill
systemd-logind /dev/input/event0
/dev/input/event1
/dev/input/event2
/dev/input/event3
/dev/input/event8
mcelog /dev/mcelog
wpa_supplicant /dev/rfkill
Xorg /dev/dri/card0
/dev/input/event1
/dev/input/event2
/dev/input/event3
/dev/input/event4
/dev/input/event5
/dev/input/event6
/dev/input/event7
/dev/input/event8
/dev/input/event9
/dev/vga_arbiter
upowerd /dev/cpu_dma_latency
/dev/input/event0
/dev/network_latency
gvfsd-fuse /dev/fuse
pulseaudio /dev/snd/controlC0
/dev/snd/controlC0
/dev/snd/controlC0
/dev/snd/controlC0
/dev/snd/pcmC0D0p
cinnamon /dev/dri/card0
/dev/rfkill

Software Settings in need of Tuning

Description Script
VM writeback timeout echo '1500' > '/proc/sys/vm/dirty_writeback_centisecs';
Enable SATA link power Managmenet for host0 echo 'min_power' > '/sys/class/scsi_host/host0/link_power_management_policy';
Enable SATA link power Managmenet for host1 echo 'min_power' > '/sys/class/scsi_host/host1/link_power_management_policy';
Enable SATA link power Managmenet for host2 echo 'min_power' > '/sys/class/scsi_host/host2/link_power_management_policy';
Enable SATA link power Managmenet for host3 echo 'min_power' > '/sys/class/scsi_host/host3/link_power_management_policy';
Enable SATA link power Managmenet for host4 echo 'min_power' > '/sys/class/scsi_host/host4/link_power_management_policy';
Enable SATA link power Managmenet for host5 echo 'min_power' > '/sys/class/scsi_host/host5/link_power_management_policy';
Enable Audio codec power management echo '1' > '/sys/module/snd_hda_intel/parameters/power_save';
NMI watchdog should be turned off echo '0' > '/proc/sys/kernel/nmi_watchdog';
Autosuspend for USB device DW375 Bluetooth Module [Dell Computer Corp] echo 'auto' > '/sys/bus/usb/devices/2-1.6/power/control';
Autosuspend for USB device USB Optical Mouse [Logitech] echo 'auto' > '/sys/bus/usb/devices/2-1.2/power/control';
Runtime PM for PCI Device Broadcom Corporation NetXtreme BCM5761 Gigabit Ethernet PCIe echo 'auto' > '/sys/bus/pci/devices/0000:0a:00.0/power/control';
Runtime PM for PCI Device O2 Micro, Inc. 1394 OHCI Compliant Host Controller echo 'auto' > '/sys/bus/pci/devices/0000:09:00.0/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6 echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.5/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 3 echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.2/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 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 MEI Controller #1 echo 'auto' > '/sys/bus/pci/devices/0000:00:16.0/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 2nd Generation Core Processor Family DRAM Controller echo 'auto' > '/sys/bus/pci/devices/0000:00:00.0/power/control';
Runtime PM for PCI Device O2 Micro, Inc. O2 Flash Memory Card echo 'auto' > '/sys/bus/pci/devices/0000:09:00.2/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 O2 Micro, Inc. Integrated MMC/SD controller echo 'auto' > '/sys/bus/pci/devices/0000:09:00.1/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 HM65 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 USB Enhanced Host Controller #1 echo 'auto' > '/sys/bus/pci/devices/0000:00:1d.0/power/control';
Runtime PM for PCI Device Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 7 echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.6/power/control';
Runtime PM for PCI Device Broadcom Corporation BCM43228 802.11a/b/g/n echo 'auto' > '/sys/bus/pci/devices/0000:02:00.0/power/control';
Runtime PM for PCI Device O2 Micro, Inc. Device 8134 echo 'auto' > '/sys/bus/pci/devices/0000:03:00.0/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';
Wake-on-lan status for device p6p1 ethtool -s p6p1 wol d;

Optimal Tuned Software Settings

Description
Bluetooth device interface status
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 eth0
Using 'ondemand' cpufreq governor