aerofly5
n00b
Joined: 03 Sep 2012
Posts: 11
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 Posted: Sun Oct 14, 2012 6:40 pm Post subject: Odd Powertop Readings |
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Powertop reports that I have 30-40 wakeups a second, despite people with similar configurations to mine saying they get <10. The two processes which cause the most wakeups are the two swapper threads, which seems to defeat the point. (hopefully) Useful info:
| Code: | | Linux school_laptop 3.4.9-gentoo #1 SMP Mon Oct 15 15:53:25 EST 2012 x86_64 Intel(R) Celeron(R) CPU 857 @ 1.20GHz GenuineIntel GNU/Linux |
| Code: | PowerTOP 1.13 (C) 2007 - 2010 Intel Corporation
Collecting data for 15 seconds
Cn Avg residency
C0 (cpu running) ( 0.3%)
polling 0.0ms ( 0.0%)
C1 mwait 0.2ms ( 0.3%)
C2 mwait 0.3ms ( 0.1%)
C3 mwait 0.7ms ( 0.0%)
C4 mwait 16.7ms (99.3%)
P-states (frequencies)
1200 Mhz 1.5%
1100 Mhz 0.1%
1000 Mhz 0.1%
900 Mhz 0.5%
800 Mhz 97.9%
Wakeups-from-idle per second : 76.0 interval: 15.0s
Power usage (ACPI estimate): 8.0W (7.3 hours)
Top causes for wakeups:
39.3% ( 54.1) swapper/0
24.7% ( 34.1) swapper/1
13.8% ( 19.1) kworker/0:1
7.2% ( 9.9) ktpacpi_nvramd
3.3% ( 4.5) X
3.1% ( 4.3) [i915] <interrupt>
2.5% ( 3.4) [Rescheduling interrupts] <kernel IPI>
1.6% ( 2.2) conky
1.5% ( 2.0) [TLB shootdowns] <kernel IPI>
0.9% ( 1.2) PS/2 keyboard/mouse/touchpad interrupt
0.6% ( 0.8) [acpi] <interrupt>
0.4% ( 0.6) urxvt
0.3% ( 0.5) [ahci] <interrupt>
0.3% ( 0.5) truecrypt
0.1% ( 0.2) wicd-monitor
0.1% ( 0.2) xscreensaver
0.1% ( 0.2) init
0.1% ( 0.2) kworker/1:1
Suggestion: Enable the CONFIG_INOTIFY kernel configuration option.
This option allows programs to wait for changes in files and directories
instead of having to poll for these changes
Recent USB suspend statistics
Active Device name
0.0% USB device 2-1.4 : Integrated Camera (Image Processor)
0.0% USB device usb2 : EHCI Host Controller (Linux 3.4.9-gentoo ehci_hcd)
0.0% USB device usb1 : EHCI Host Controller (Linux 3.4.9-gentoo ehci_hcd)
0.0% /sys/bus/usb/devices/2-1
0.0% /sys/bus/usb/devices/1-1
Runtime Device Power Management statistics
Active Device name
100.0% 08:00.0 Ethernet controller: Atheros Communications Inc. AR8151 v2.0 Gigabit Ethernet
100.0% 02:00.0 Network controller: Broadcom Corporation BCM43224 802.11a/b/g/n
100.0% 00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
0.0% 00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
100.0% 00:1c.5 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 6
100.0% 00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3
100.0% 00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2
100.0% 00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1
100.0% 00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller
0.0% 00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
100.0% 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
100.0% 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller
Devices without runtime PM
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5209 PCI Express Card Reader
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1
Recent audio activity statistics
Active Device name
0.0% hwC0D3 Intel CougarPoint HDMI
0.0% hwC0D0 Conexant CX20590
Recent SATA AHCI link activity statistics
Active Partial Slumber Device name
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BTW: This isn't new, my last kernel (3.3. had this issue as well. Any help appreciated  |
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Kernel & Hardware
