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2025-12-16 - 20:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #b, slot #5

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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  Phytec
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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot5s.osadl.org (updated Fri Dec 12, 2025 00:44:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2230355995325,23cyclictest0-21swapper/321:25:283
2230355995126,21cyclictest0-21swapper/319:15:013
2230355995025,21cyclictest0-21swapper/319:20:183
2230355994921,24cyclictest2324468-21munin-run23:40:013
2230355994825,20cyclictest0-21swapper/322:20:003
2230355994825,18cyclictest0-21swapper/323:00:293
2230344994840,5cyclictest2296138-21unixbench_singl22:15:310
2230355994718,26cyclictest0-21swapper/321:00:233
2230355994718,24cyclictest0-21swapper/320:55:273
223034999471,43cyclictest231ktimers/121:00:141
2230344994538,5cyclictest2277525-21kworker/u8:1+events_unbound21:27:500
2230344994537,5cyclictest2338129-21idleruntime-cro00:20:000
2230355994423,16cyclictest0-21swapper/322:58:073
2230355994423,16cyclictest0-21swapper/322:58:073
223034499441,8cyclictest11-21ksoftirqd/019:15:130
2230355994332,7cyclictest2277575-21cron21:25:003
2230344994333,7cyclictest2261994-21sh20:40:010
2230344994332,8cyclictest2317665-21sendmail23:20:000
2230344994312,6cyclictest131rcu_preempt22:40:130
2230355994217,21cyclictest0-21swapper/321:15:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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