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2024-10-03 - 15:05

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #7

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.
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 10 highest latencies:
System rackfslot7s.osadl.org (updated Thu Oct 03, 2024 00:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182038499310114,3083cyclictest1842499-21kworker/1:0+events20:25:211
182038499309415,3075cyclictest1866336-21kworker/1:0+events21:40:151
182038499286610,2851cyclictest1823981-21kworker/1:0+events19:30:271
182038499284513,2827cyclictest1847165-21kworker/1:1+events21:00:111
182038499281713,2800cyclictest1888709-21kworker/1:0+events22:50:171
182038499281010,2797cyclictest1855290-21kworker/1:2+events21:38:261
182038499275814,2741cyclictest1861596-21kworker/1:0+events21:25:161
182038499275814,2741cyclictest1861596-21kworker/1:0+events21:25:161
182038499268613,2669cyclictest1888709-21kworker/1:0+events00:10:151
182038499255611,2541cyclictest1875980-21kworker/1:2+events22:05:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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