Mailinglist Archive: opensuse-mobile (24 mails)

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Re: [opensuse-mobile] Question on power consumption of zen-updater and opensuseupdater / kernel - powersaving options
  • From: Dieter Jurzitza <dieter.jurzitza@xxxxxxxxxxx>
  • Date: Wed, 25 Jul 2007 17:08:55 +0200
  • Message-id: <200707251708.55471.dieter.jurzitza@xxxxxxxxxxx>
Dear listmembers,
dear Thomas,
here comes the comment about zen-updater. It contributes by about 5% to the 
wakeup events - though the power consumption is not high - I doubt that this 
should be the case. 
What is even more boring: you cannot end zen-updater, if you say "end" it 
simply does not stop - it is like a barnacle that does not want to stop.
Opensuse-updater behaves similarly. And again, I can hardly see a need for a 
software updater to generate so much noise ;-)

What regards the power state capability of my computer - lenovo X60 - see 
below:

active state:            C3
max_cstate:              C8
bus master activity:     00000000
maximum allowed latency: 8000 usec
states:
    C1:                  type[C1] promotion[C2] demotion[--] latency[001] 
usage[
00000010] duration[00000000000000000000]
    C2:                  type[C2] promotion[C3] demotion[C1] latency[001] 
usage[
00019637] duration[00000000000320989970]
   *C3:                  type[C3] promotion[--] demotion[C2] latency[057] 
usage[
00163901] duration[00000000005856338283]
/home/exchange> cat dummy
active state:            C3
max_cstate:              C8
bus master activity:     00000000
maximum allowed latency: 8000 usec
states:
    C1:                  type[C1] promotion[C2] demotion[--] latency[001] 
usage[00000010] duration[00000000000000000000]
    C2:                  type[C2] promotion[C3] demotion[C1] latency[001] 
usage[00019637] duration[00000000000320989970]
   *C3:                  type[C3] promotion[--] demotion[C2] latency[057] 
usage[00163901] duration[00000000005856338283]



Take care



Dieter


********************************************************************************
     PowerTOP version 1.6       (C) 2007 Intel Corporation

Cn          Verweildauer (5s)   Mittlere Verweildauer
C0 (Prozessor läuft)    ( 2,9%)
C1                0,0ms ( 0,0%)                   0,0ms
C2                5,3ms ( 1,5%)                   5,3ms
C3                6,0ms (95,6%)                   6,0ms


Aufwachen pro Sekunde : 162,4
Stromverbrauch (nach ACPI): 9,4W (3,3 Std.) 

Häufigste Ursachen für das Aufwachen:
  46,6% ( 90,8)       <interrupt> : i8042 
  16,3% ( 31,8)       <interrupt> : uhci_hcd:usb2, yenta,i915@pci:0000:00:02.0
  11,1% ( 21,6)       <interrupt> : uhci_hcd:usb3, ipw3945, HDA Intel,ohci1394
   4,8% (  9,4)       zen-updater : schedule_timeout (process_timeout)
   2,6% (  5,0)               tpb : do_nanosleep (hrtimer_wakeup)
   2,5% (  4,8)                 X : do_setitimer (it_real_fn) 

********************************************************************************

-- 
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