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2023-09-24 - 02:06

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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 
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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.

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 rack7slot3s.osadl.org (updated Sat Sep 23, 2023 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
783921820,5sleep156899cyclictest07:30:221
463921020,2sleep10-21swapper/110:25:001
267982950,3sleep20-21swapper/210:10:522
56199866,61cyclictest0-21swapper/007:25:270
55172770,2sleep10-21swapper/112:32:201
56199747,34cyclictest0-21swapper/007:50:430
56199732,36cyclictest0-21swapper/009:10:400
197102730,1sleep30-21swapper/310:44:303
56199711,37cyclictest0-21swapper/009:00:420
56199692,63cyclictest4767-21sed12:31:010
561996917,29cyclictest6706-21if_err_eth009:45:470
561996915,35cyclictest9-21ksoftirqd/012:20:220
56199686,59cyclictest0-21swapper/011:50:400
207372680,1sleep30-21swapper/310:03:163
56199671,24cyclictest0-21swapper/008:25:430
326992676,23sleep0131-21systemd-journal07:10:220
56199662,39cyclictest0-21swapper/008:00:390
572996427,22cyclictest24349-21ssh10:50:383
572996425,20cyclictest17489-21ssh09:17:053
56199641,37cyclictest0-21swapper/012:25:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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