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2026-08-20 - 19:07
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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 20 highest latencies:
System rack1slot1.osadl.org (updated Thu Aug 20, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
60612229157,25sleep20-21swapper/207:08:392
61272200146,21sleep10-21swapper/107:09:301
60322199160,25sleep30-21swapper/307:08:173
59252198161,24sleep00-21swapper/007:06:530
255582590,0sleep00-21swapper/008:55:130
6267991413,1cyclictest35-21ksoftirqd/308:45:003
232882140,0sleep30-21swapper/307:40:203
625499130,12cyclictest0-21swapper/107:40:181
624799130,12cyclictest0-21swapper/007:20:110
624799129,1cyclictest9-21ksoftirqd/009:16:590
6247991212,0cyclictest9-21ksoftirqd/009:25:010
6247991210,1cyclictest9-21ksoftirqd/009:35:190
6247991210,1cyclictest9-21ksoftirqd/009:20:140
6267991110,1cyclictest35-21ksoftirqd/312:30:003
6267991110,1cyclictest35-21ksoftirqd/312:00:003
6267991110,1cyclictest22406-21ssh11:13:063
626099119,1cyclictest28-21ksoftirqd/208:25:002
626099110,11cyclictest0-21swapper/210:50:482
6254991111,0cyclictest0-21swapper/111:35:111
624799113,4cyclictest29360-21date12:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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