[Buildbot-commits] [SPAM] Re: [Buildbot] #829: Buildbot 0.8.0rc2 waterfall is unusably slow

[Buildbot]

#829: Buildbot 0.8.0rc2 waterfall is unusably slow
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Reporter:  bdbaddog  |       Owner:       
    Type:  defect    |      Status:  new  
Priority:  critical  |   Milestone:  0.8.0
 Version:  0.8.0     |    Keywords:       
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Comment(by willw):

 Okay, something else very interesting has just come to light:

 {{{
 top - 12:43:41 up 9 days, 23:58,  3 users,  load average: 0.97, 0.85, 0.89
 Tasks: 120 total,   1 running, 119 sleeping,   0 stopped,   0 zombie
 Cpu(s): 36.9%us, 13.0%sy,  0.0%ni, 49.9%id,  0.0%wa,  0.2%hi,  0.0%si,
 0.0%st
 Mem:   2063496k total,  1416476k used,   647020k free,   204232k buffers
 Swap:  3229024k total,        0k used,  3229024k free,   646100k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 25680 build     20   0  356m 164m 2904 S  100  8.2  11:39.01 buildbot
  2706 root      20   0 24168 1244 1048 S    0  0.1   1:01.29 hald-addon-
 stor
     1 root      20   0 10324  756  628 S    0  0.0   0:04.92 init
     2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd
     3 root      RT  -5     0    0    0 S    0  0.0   0:00.16 migration/0
 }}}

 If there's any build activity buildbot is at 100% of CPU time -
 irrespective of waterfall access. So I don't think it's anything to do
 with the waterfall itself...

 If there's no build activity the CPU usage returns to normal. And
 unsurprisingly the waterfall is again responsive...

-- 
Ticket URL: <http://buildbot.net/trac/ticket/829#comment:17>
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