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2025-11-07 - 06:46
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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
Characteristics of the 50 highest latencies:
System rackcslot6.osadl.org (updated Fri Nov 07, 2025 00:46:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
279662421220,0sleep228-21ksoftirqd/223:33:012
25376752111103,4sleep40-21swapper/419:05:174
2538763210283,17sleep50-21swapper/519:05:275
2538546210282,4sleep20-21swapper/219:05:232
28077342960,0sleep30-21swapper/323:40:553
253945829342,12sleep30-21swapper/319:08:473
25390722930,5sleep00-21swapper/019:05:290
25479812880,0sleep30-21swapper/319:20:143
253922928842,33sleep60-21swapper/619:05:366
253935628244,32sleep70-21swapper/719:07:217
28634552790,1sleep656-21ksoftirqd/600:25:216
28770142750,1sleep32877012-21sh00:35:503
28801762740,1sleep442-21ksoftirqd/400:40:014
25614462740,0sleep60-21swapper/619:40:206
25738092730,0sleep3341rcuc/320:00:193
27963002720,0sleep50-21swapper/523:32:325
25819572710,0sleep10-21swapper/120:15:151
253952126840,22sleep10-21swapper/119:09:401
253972999665,29cyclictest0-21swapper/123:08:121
2539729996217,36cyclictest0-21swapper/121:38:111
2539729996215,36cyclictest0-21swapper/121:58:111
2539762996111,28cyclictest0-21swapper/520:38:115
2539770995815,34cyclictest0-21swapper/621:23:126
2539775995716,10cyclictest0-21swapper/720:03:127
2539770995715,36cyclictest0-21swapper/622:23:116
253972999579,48cyclictest21-21ksoftirqd/121:03:121
2539729995716,38cyclictest0-21swapper/119:53:121
2539770995517,37cyclictest0-21swapper/622:13:116
2539754995516,36cyclictest0-21swapper/400:23:114
2539729995516,39cyclictest0-21swapper/119:18:121
2539775995415,7cyclictest0-21swapper/720:13:127
2539729995416,38cyclictest0-21swapper/122:48:111
2539754995316,37cyclictest0-21swapper/420:28:114
2539721995217,20cyclictest0-21swapper/023:43:110
2539721995133,18cyclictest0-21swapper/023:33:110
2539721994916,23cyclictest0-21swapper/000:08:110
2539721994816,32cyclictest0-21swapper/023:23:120
2539762994716,8cyclictest0-21swapper/519:38:125
2539721994616,30cyclictest0-21swapper/019:28:110
2539721994616,30cyclictest0-21swapper/019:28:110
2539762994516,29cyclictest0-21swapper/523:58:115
2539762994516,29cyclictest0-21swapper/522:58:115
2539762994514,31cyclictest0-21swapper/520:48:125
2539721994415,29cyclictest0-21swapper/021:13:110
2539762994316,27cyclictest0-21swapper/521:48:115
2539775993914,25cyclictest0-21swapper/722:33:117
2539775993914,25cyclictest0-21swapper/700:33:127
2539754993411,0cyclictest0-21swapper/400:19:584
2539754993410,24cyclictest0-21swapper/421:53:594
26103662320,0sleep70-21swapper/721:00:167
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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