[mythtv-commits] Ticket #3757: Reduce polling in mythwelcome

MythTV mythtv at cvs.mythtv.org
Thu Aug 30 04:55:42 UTC 2007


#3757: Reduce polling in mythwelcome
-----------------------+----------------------------------------------------
 Reporter:  anonymous  |        Owner:  ijr 
     Type:  defect     |       Status:  new 
 Priority:  minor      |    Milestone:  0.21
Component:  mythtv     |      Version:  head
 Severity:  low        |   Resolution:      
  Mlocked:  0          |  
-----------------------+----------------------------------------------------

Comment(by sandeen):

 I tried running w/ this patch (ran powertop, built libmyth, stopped
 everything, copied over original, ldconfig, started everything, ran
 powertop again) and didn't see any difference:

 before:

 {{{
 Wakeups-from-idle per second : 147.2    interval: 15.0s
 no ACPI power usage estimate available
 Top causes for wakeups:
   27.4% ( 80.7)      mythfrontend : schedule_timeout (process_timeout)
   21.4% ( 62.9)       <interrupt> : ivtv0
   20.6% ( 60.5)       <interrupt> : CMI8738-MC8, nvidia
    9.8% ( 28.9)       mythbackend : futex_wait (hrtimer_wakeup)

 }}}

 after:

 {{{
 Wakeups-from-idle per second : 147.8    interval: 15.0s
 no ACPI power usage estimate available
 Top causes for wakeups:
   27.3% ( 80.8)      mythfrontend : schedule_timeout (process_timeout)
   21.2% ( 62.8)       <interrupt> : ivtv0
   20.5% ( 60.6)       <interrupt> : CMI8738-MC8, nvidia
    9.7% ( 28.7)       mythbackend : futex_wait (hrtimer_wakeup)

 }}}

 but feel free to double check my results :)

-- 
Ticket URL: <http://svn.mythtv.org/trac/ticket/3757#comment:7>
MythTV <http://svn.mythtv.org/trac>
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