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2024-07-16 - 15:59

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #8, slot #4

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack8slot4s.osadl.org (updated Tue Jul 16, 2024 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21598852218160,17sleep40-21swapper/407:06:184
21597372212179,21sleep50-21swapper/507:05:395
21598932210180,19sleep30-21swapper/307:06:253
21600892209176,21sleep20-21swapper/207:09:132
21600272208178,19sleep60-21swapper/607:08:216
21598442208173,23sleep10-21swapper/107:05:441
21600102207174,21sleep70-21swapper/707:08:077
21599922200171,18sleep00-21swapper/007:07:510
22329952480,0sleep30-21swapper/309:15:013
216035999270,1cyclictest0-21swapper/008:15:000
216036599250,24cyclictest2322095-21idleruntime-cro11:50:002
216036099250,3cyclictest2180990-21cron07:45:001
216036099250,24cyclictest1096759-21systemd-journal11:20:001
216035999250,1cyclictest2290525-21apt-get10:55:110
216038299247,4cyclictest0-21swapper/709:33:537
216038299240,23cyclictest2163108-21turbostat07:15:007
216038299240,1cyclictest2269824-21apt-get10:20:007
216035999240,23cyclictest0-21swapper/008:00:120
216035999240,0cyclictest0-21swapper/009:00:130
2160382992321,1cyclictest2266982-21munin-run10:15:007
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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