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2026-05-23 - 00:51
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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 rack1slot1.osadl.org (updated Fri May 22, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2054724000,4sleep0101rcuc/007:05:130
202482210157,26sleep30-21swapper/307:05:013
222752198159,26sleep10-21swapper/107:06:121
223732197158,26sleep20-21swapper/207:07:302
3532690,0sleep10-21swapper/112:25:001
183032680,0sleep10-21swapper/110:38:271
22673991918,1cyclictest35-21ksoftirqd/310:25:073
22673991816,1cyclictest35-21ksoftirqd/310:30:163
22673991717,0cyclictest35-21ksoftirqd/311:51:073
22673991717,0cyclictest35-21ksoftirqd/310:10:203
22673991716,1cyclictest35-21ksoftirqd/312:31:043
22673991716,1cyclictest35-21ksoftirqd/311:25:133
22673991716,1cyclictest35-21ksoftirqd/309:10:193
22673991616,0cyclictest35-21ksoftirqd/312:20:223
22673991616,0cyclictest35-21ksoftirqd/309:30:113
22673991615,1cyclictest35-21ksoftirqd/310:20:143
22673991515,0cyclictest35-21ksoftirqd/311:55:113
22673991514,1cyclictest35-21ksoftirqd/312:13:413
22673991514,1cyclictest35-21ksoftirqd/308:55:193
22673991514,1cyclictest35-21ksoftirqd/308:30:193
22673991414,0cyclictest35-21ksoftirqd/310:45:323
22673991414,0cyclictest35-21ksoftirqd/310:15:183
22673991414,0cyclictest35-21ksoftirqd/309:25:193
22673991412,1cyclictest35-21ksoftirqd/311:00:013
2266699140,13cyclictest0-21swapper/209:05:172
2266199140,13cyclictest0-21swapper/109:05:171
2266199140,13cyclictest0-21swapper/107:55:121
22652991412,1cyclictest9-21ksoftirqd/009:40:000
22673991313,0cyclictest35-21ksoftirqd/311:46:503
22673991313,0cyclictest35-21ksoftirqd/310:35:283
22673991313,0cyclictest35-21ksoftirqd/310:05:133
22673991312,1cyclictest35-21ksoftirqd/312:40:003
22673991312,1cyclictest35-21ksoftirqd/312:05:193
22673991312,1cyclictest35-21ksoftirqd/311:15:003
22673991312,1cyclictest35-21ksoftirqd/309:24:593
22673991312,1cyclictest35-21ksoftirqd/307:40:183
22673991312,1cyclictest35-21ksoftirqd/307:10:123
22673991312,0cyclictest35-21ksoftirqd/309:55:003
22673991311,1cyclictest35-21ksoftirqd/311:45:003
2266699130,12cyclictest0-21swapper/207:55:142
185932130,0sleep20-21swapper/210:39:162
22673991212,0cyclictest35-21ksoftirqd/312:25:103
22673991212,0cyclictest35-21ksoftirqd/310:42:293
22673991212,0cyclictest35-21ksoftirqd/309:57:283
22673991212,0cyclictest35-21ksoftirqd/308:00:003
22673991211,1cyclictest35-21ksoftirqd/311:20:143
22673991211,1cyclictest35-21ksoftirqd/311:15:143
22673991211,1cyclictest35-21ksoftirqd/310:50:113
22673991211,1cyclictest35-21ksoftirqd/309:15:163
22673991211,1cyclictest35-21ksoftirqd/308:25:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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