Bill Nottingham wrote:
...
4) Report the results. You can add reports here, on #fedora-devel,
or to the upstream powertop community at power@xxxxxxxxxxx or
#powertop on irc.oftc.net.
...
I read at Intel's site about powertop that having activities in C-states
3 and 4 are best, but I don't have either. I'm curious as to know why I
don't. Anyway, I have an HP Pavilion ze4900, and the results follow.
I've also included processor info just in case it helps someone explain
why I don't have as many C-states, and a listing from lspci in case that
helps track down any issues spotted in powertop's output.
Justin W
[root@titan ~]# powertop
PowerTOP 1.7 (C) 2007 Intel Corporation
Collecting data for 5 seconds
PowerTOP version 1.7 (C) 2007 Intel Corporation
Cn Avg residency (3s) P-states (frequencies)
C0 (cpu running) ( 2.2%)
C1 0.0ms ( 0.0%)
C2 4.1ms (97.8%)
Wakeups-from-idle per second : 235.7
no ACPI power usage estimate available
Top causes for wakeups:
38.5% ( 90.7) <interrupt> : uhci_hcd:usb1, eth0,
i915@pci:0000:00:02.0
15.4% ( 36.3) <interrupt> : yenta, uhci_hcd:usb2, uhci_hcd:usb3,
ehci_hcd:usb4, ndiswrapper
11.9% ( 28.0) gst-launch-0.10 : schedule_timeout (process_timeout)
8.1% ( 19.0) ntos_wq/0 : wrap_set_timer (timer_proc)
5.7% ( 13.3) mixer_applet2 : schedule_timeout (process_timeout)
4.0% ( 9.3) Xorg : do_setitimer (it_real_fn)
3.0% ( 7.0) thunderbird-bin : futex_wait (hrtimer_wakeup)
2.5% ( 6.0) <kernel module> : wrap_set_timer (timer_proc)
1.7% ( 4.0) <kernel module> : usb_hcd_poll_rh_status (rh_timer_func)
1.3% ( 3.0) gnome-terminal : schedule_timeout (process_timeout)
0.8% ( 2.0) Xorg : schedule_timeout (process_timeout)
0.8% ( 2.0) <kernel core> : clocksource_register
(clocksource_watchdog)
0.4% ( 1.0) <interrupt> : libata
0.4% ( 1.0) httpd : schedule_timeout (process_timeout)
0.4% ( 1.0) <kernel module> : neigh_table_init_no_netlink
(neigh_periodic_timer)
0.4% ( 1.0) dhcdbd : schedule_timeout (process_timeout)
0.4% ( 1.0) automount : futex_wait (hrtimer_wakeup)
0.4% ( 1.0) nm-applet : schedule_timeout (process_timeout)
0.4% ( 1.0) <kernel core> : queue_delayed_work_on
(delayed_work_timer_fn)
0.4% ( 1.0) yum-updatesd : schedule_timeout (process_timeout)
0.3% ( 0.7) <kernel core> : neigh_table_init_no_netlink
(neigh_periodic_timer)
0.3% ( 0.7) gpm : do_nanosleep (hrtimer_wakeup)
0.3% ( 0.7) NetworkManager : schedule_timeout (process_timeout)
0.3% ( 0.7) gnome-screensav : schedule_timeout (process_timeout)
0.1% ( 0.3) <interrupt> : i8042
0.1% ( 0.3) <kernel core> : dst_run_gc (dst_run_gc)
0.1% ( 0.3) <kernel core> : __netdev_watchdog_up (dev_watchdog)
0.1% ( 0.3) <kernel core> : __nf_conntrack_confirm
(death_by_timeout)
0.1% ( 0.3) init : schedule_timeout (process_timeout)
0.1% ( 0.3) sendmail : schedule_timeout (process_timeout)
0.1% ( 0.3) nautilus : schedule_timeout (process_timeout)
0.1% ( 0.3) gam_server : schedule_timeout (process_timeout)
0.1% ( 0.3) gnome-power-man : schedule_timeout (process_timeout)
0.1% ( 0.3) <kernel core> : page_writeback_init (wb_timer_fn)
0.1% ( 0.3) pdflush : blk_plug_device (blk_unplug_timeout)
0.1% ( 0.3) ssh-agent : do_setitimer (it_real_fn)
[root@titan ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 9
model name : Intel(R) Celeron(R) M processor 1400MHz
stepping : 5
cpu MHz : 1396.591
cache size : 512 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr mce cx8 mtrr pge mca cmov pat
clflush dts acpi mmx fxsr sse sse2 tm pbe up
bogomips : 2794.02
clflush size : 64
[root@titan ~]# lspci
00:00.0 Host bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV
Processor to I/O Controller (rev 02)
00:00.1 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV
Processor to I/O Controller (rev 02)
00:00.3 System peripheral: Intel Corporation 82852/82855 GM/GME/PM/GMV
Processor to I/O Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82852/855GM
Integrated Graphics Device (rev 02)
00:02.1 Display controller: Intel Corporation 82852/855GM Integrated
Graphics Device (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801DB/DBM (ICH4/ICH4-M) USB2
EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 83)
00:1f.0 ISA bridge: Intel Corporation 82801DBM (ICH4-M) LPC Interface
Bridge (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801DBM (ICH4-M) IDE
Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
SMBus Controller (rev 03)
00:1f.5 Multimedia audio controller: Intel Corporation 82801DB/DBL/DBM
(ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
00:1f.6 Modem: Intel Corporation 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M)
AC'97 Modem Controller (rev 03)
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
02:05.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus
Controller (rev 02)
02:06.0 Network controller: Broadcom Corporation BCM4306 802.11b/g
Wireless LAN Controller (rev 03)
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