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2026-03-14 - 14:45
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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 rackdslot2.osadl.org (updated Sat Mar 14, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57082244199,34sleep10-21swapper/119:06:591
139591234168,22phc2sys0-21swapper/319:07:533
59012227161,22sleep20-21swapper/219:09:292
38122209174,23sleep00-21swapper/019:05:090
6236996428,6cyclictest33-21ksoftirqd/220:04:592
6236996427,6cyclictest33-21ksoftirqd/222:00:002
6236996234,6cyclictest33-21ksoftirqd/200:25:262
233042620,6sleep0623499cyclictest19:45:120
6236995919,6cyclictest33-21ksoftirqd/220:15:002
6236995824,6cyclictest33-21ksoftirqd/220:40:002
6236995824,4cyclictest33-21ksoftirqd/220:15:232
6236995818,7cyclictest33-21ksoftirqd/221:45:262
623599581,2cyclictest5539-21ls21:20:241
139291580,1ptp4l401ktimersoftd/323:41:253
6236995727,7cyclictest33-21ksoftirqd/221:30:012
6236995727,7cyclictest33-21ksoftirqd/221:30:012
6236995723,5cyclictest33-21ksoftirqd/220:20:222
6236995721,4cyclictest33-21ksoftirqd/200:05:012
6236995624,5cyclictest33-21ksoftirqd/221:00:242
6236995623,5cyclictest33-21ksoftirqd/222:30:252
6236995522,4cyclictest33-21ksoftirqd/222:05:122
6236995522,4cyclictest33-21ksoftirqd/222:05:122
6236995522,3cyclictest33-21ksoftirqd/220:50:232
6236995424,3cyclictest33-21ksoftirqd/200:05:152
6236995424,3cyclictest33-21ksoftirqd/200:05:152
6236995422,7cyclictest33-21ksoftirqd/220:55:232
6236995422,6cyclictest33-21ksoftirqd/220:40:242
6236995422,5cyclictest33-21ksoftirqd/223:15:212
6236995421,4cyclictest33-21ksoftirqd/200:20:242
6236995421,3cyclictest33-21ksoftirqd/200:15:182
139291540,1ptp4l401ktimersoftd/300:05:163
139291540,1ptp4l401ktimersoftd/300:05:163
6236995333,13cyclictest33-21ksoftirqd/219:50:282
6236995323,7cyclictest33-21ksoftirqd/223:30:002
6236995323,3cyclictest33-21ksoftirqd/220:05:122
6236995317,8cyclictest33-21ksoftirqd/223:35:222
139291530,1ptp4l401ktimersoftd/320:29:303
6236995221,4cyclictest33-21ksoftirqd/222:50:262
623699518,6cyclictest33-21ksoftirqd/222:15:182
6236995123,6cyclictest33-21ksoftirqd/220:45:162
6236995122,7cyclictest33-21ksoftirqd/221:40:122
6236995121,3cyclictest33-21ksoftirqd/223:30:242
6236995120,3cyclictest33-21ksoftirqd/222:20:212
6236995117,6cyclictest33-21ksoftirqd/220:35:012
6236995022,3cyclictest33-21ksoftirqd/223:55:132
6236995020,7cyclictest33-21ksoftirqd/221:35:212
6236995020,4cyclictest33-21ksoftirqd/223:20:142
6236995015,7cyclictest33-21ksoftirqd/220:25:132
6236994925,4cyclictest33-21ksoftirqd/223:10:252
6236994915,7cyclictest33-21ksoftirqd/222:50:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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