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2025-07-12 - 12:51

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #0

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.

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 r0s0s.osadl.org (updated Sat Jul 12, 2025 00:46:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26151722307290,11sleep00-21swapper/019:05:300
26158512294277,10sleep60-21swapper/619:09:466
26155782294286,5sleep70-21swapper/719:06:187
26158572292258,26sleep30-21swapper/319:09:513
26155552288269,12sleep20-21swapper/219:05:572
26155292285266,12sleep40-21swapper/419:05:354
26158462284264,13sleep10-21swapper/119:09:421
26155392284265,12sleep50-21swapper/519:05:445
261660699340,30cyclictest0-21swapper/720:19:027
261660699340,1cyclictest0-21swapper/719:22:347
2616604993330,2cyclictest833-21snmpd19:35:105
2616602993330,2cyclictest833-21snmpd23:25:073
2616602993330,2cyclictest833-21snmpd20:25:183
2616600993331,2cyclictest2767565-21latency_hist00:25:002
2616600993330,2cyclictest833-21snmpd23:20:522
2616600993330,2cyclictest2723089-21cat22:50:182
2616600993330,2cyclictest2723089-21cat22:50:172
2616595993330,2cyclictest833-21snmpd20:26:420
2616595993330,2cyclictest833-21snmpd19:18:040
2616595993328,4cyclictest833-21snmpd00:01:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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