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2026-06-07 - 22:14
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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 rackdslot3.osadl.org (updated Sun Jun 07, 2026 12:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
103842204171,22sleep30-21swapper/307:05:033
103832204172,22sleep20-21swapper/207:05:022
122962202169,22sleep10-21swapper/107:07:101
122702202169,22sleep00-21swapper/007:06:490
117832560,3sleep30-21swapper/311:35:213
139391540,0ptp4l391rcuc/309:04:433
139391540,0ptp4l391rcuc/309:04:433
1281699484,6cyclictest3239-21dpkg11:19:593
12816994810,5cyclictest41-21ksoftirqd/311:11:373
1281699457,5cyclictest41-21ksoftirqd/311:54:423
12814994540,3cyclictest25-21ksoftirqd/109:35:001
1281499451,10cyclictest25-21ksoftirqd/110:05:001
1281699447,5cyclictest41-21ksoftirqd/311:25:103
1281699440,10cyclictest5731-21cut11:25:013
12814994440,2cyclictest25-21ksoftirqd/108:15:011
139391420,0ptp4l401ktimersoftd/310:59:173
1281699420,39cyclictest32009-21latency_hist10:05:003
1281499428,9cyclictest25-21ksoftirqd/108:34:591
12814994236,3cyclictest25-21ksoftirqd/108:30:001
12814994210,3cyclictest25-21ksoftirqd/109:45:181
139391410,0ptp4l401ktimersoftd/309:43:433
12813994136,3cyclictest9-21ksoftirqd/010:25:000
12813994136,2cyclictest9-21ksoftirqd/009:20:000
139391400,0ptp4l401ktimersoftd/308:30:363
12814994035,3cyclictest25-21ksoftirqd/112:05:011
12814994035,3cyclictest25-21ksoftirqd/111:50:001
12814994035,3cyclictest25-21ksoftirqd/111:50:001
12814993935,2cyclictest25-21ksoftirqd/110:24:591
12814993934,3cyclictest25-21ksoftirqd/108:15:171
12814993933,3cyclictest25-21ksoftirqd/111:14:591
12813993934,3cyclictest9-21ksoftirqd/008:00:000
139391380,0ptp4l401ktimersoftd/309:55:193
1281699387,5cyclictest41-21ksoftirqd/308:45:273
1281499386,5cyclictest25-21ksoftirqd/109:50:241
1281499385,3cyclictest25-21ksoftirqd/109:15:131
1281499384,8cyclictest25-21ksoftirqd/112:15:221
12814993833,3cyclictest25-21ksoftirqd/107:12:401
12814993832,4cyclictest25-21ksoftirqd/109:28:501
12814993832,3cyclictest25-21ksoftirqd/107:35:011
12814993831,4cyclictest25-21ksoftirqd/109:03:401
12814993831,4cyclictest25-21ksoftirqd/109:03:401
12813993832,3cyclictest9-21ksoftirqd/011:10:000
12813993832,3cyclictest9-21ksoftirqd/007:40:190
12813993831,3cyclictest9-21ksoftirqd/010:10:000
12815993730,5cyclictest33-21ksoftirqd/208:05:002
1281499375,6cyclictest25-21ksoftirqd/111:15:191
1281499374,3cyclictest25-21ksoftirqd/108:40:151
12814993734,2cyclictest25-21ksoftirqd/112:30:001
12814993734,2cyclictest25-21ksoftirqd/111:00:001
12814993733,2cyclictest25-21ksoftirqd/110:40:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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