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2024-07-16 - 16:01

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #3, slot #6

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack3slot6s.osadl.org (updated Tue Jul 16, 2024 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168372115104,6sleep00-21swapper/007:07:160
15275210981,6sleep20-21swapper/207:05:102
16917210887,16sleep30-21swapper/307:08:193
1672129584,6sleep10-21swapper/107:05:451
71782730,0sleep00-21swapper/009:15:310
258892690,1sleep10-21swapper/110:10:411
123222540,1sleep30-21swapper/308:15:253
17081993715,2cyclictest330350irq/24-eth112:25:142
1707999240,23cyclictest0-21swapper/007:58:330
1708199221,19cyclictest0-21swapper/211:35:102
1708099220,20cyclictest0-21swapper/109:45:111
17082992117,2cyclictest27402-21kworker/u8:111:39:043
1708299210,19cyclictest0-21swapper/307:50:103
1708199210,20cyclictest0-21swapper/207:58:342
1707999211,18cyclictest0-21swapper/011:55:140
1707999210,16cyclictest0-21swapper/010:14:050
1708299203,2cyclictest0-21swapper/311:30:053
17082992017,2cyclictest13460-21kworker/u8:310:44:043
1708299200,2cyclictest0-21swapper/310:20:143
1708199201,2cyclictest0-21swapper/210:35:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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