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2026-05-05 - 16:45
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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 100 highest latencies:
System rackdslot4.osadl.org (updated Tue May 05, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262542225166,48sleep10-21swapper/107:07:111
242592204169,23sleep30-21swapper/307:05:083
261612203170,22sleep00-21swapper/007:05:580
261582202170,21sleep20-21swapper/207:05:562
688421550,7sleep12677299cyclictest08:40:021
2648028361,14sleep10-21swapper/107:10:011
2648028361,14sleep10-21swapper/107:10:011
138491650,1ptp4l401ktimersoftd/307:30:163
26774995833,3cyclictest41-21ksoftirqd/312:30:203
135191580,6getstats2677499cyclictest10:13:113
138491560,1ptp4l401ktimersoftd/309:26:033
26774995224,4cyclictest41-21ksoftirqd/312:10:203
26774995223,4cyclictest41-21ksoftirqd/311:00:233
26774995214,9cyclictest41-21ksoftirqd/311:50:213
307072510,1sleep20-21swapper/208:20:252
26774995031,3cyclictest41-21ksoftirqd/311:20:133
26774995021,4cyclictest41-21ksoftirqd/310:50:133
138491500,3ptp4l41-21ksoftirqd/307:10:173
138491500,3ptp4l41-21ksoftirqd/307:10:173
2677499498,8cyclictest41-21ksoftirqd/308:55:243
26774994930,3cyclictest41-21ksoftirqd/308:45:133
26774994921,3cyclictest41-21ksoftirqd/310:25:223
26774994920,3cyclictest41-21ksoftirqd/308:20:273
26774994918,4cyclictest41-21ksoftirqd/307:55:013
140642490,1sleep30-21swapper/308:55:003
59192480,1sleep10-21swapper/107:30:261
26774994819,3cyclictest41-21ksoftirqd/310:45:173
26774994818,3cyclictest41-21ksoftirqd/307:25:153
26774994811,8cyclictest41-21ksoftirqd/309:15:123
2677499478,7cyclictest41-21ksoftirqd/308:15:103
26774994719,3cyclictest41-21ksoftirqd/309:35:203
26774994717,4cyclictest41-21ksoftirqd/310:05:243
26774994715,4cyclictest41-21ksoftirqd/312:05:183
26774994620,6cyclictest41-21ksoftirqd/309:55:143
26774994617,7cyclictest41-21ksoftirqd/311:10:133
2677499461,3cyclictest41-21ksoftirqd/312:20:263
26774994610,8cyclictest41-21ksoftirqd/312:00:183
2677499457,10cyclictest41-21ksoftirqd/312:15:203
26774994534,3cyclictest41-21ksoftirqd/308:30:133
26774994519,6cyclictest41-21ksoftirqd/309:45:223
26774994518,3cyclictest41-21ksoftirqd/307:45:193
26774994517,4cyclictest41-21ksoftirqd/309:23:503
26774994514,4cyclictest41-21ksoftirqd/307:55:383
2677499451,3cyclictest121rcu_preempt10:30:163
26774994513,3cyclictest41-21ksoftirqd/311:30:133
26774994513,3cyclictest41-21ksoftirqd/311:30:133
2677499442,6cyclictest121rcu_preempt09:30:133
26774994422,4cyclictest41-21ksoftirqd/310:20:213
26774994418,7cyclictest41-21ksoftirqd/310:40:273
26774994417,7cyclictest41-21ksoftirqd/308:35:243
26774994416,4cyclictest41-21ksoftirqd/309:53:343
26772994438,3cyclictest18883-21anacron09:03:251
2677499438,4cyclictest41-21ksoftirqd/309:10:253
26774994332,9cyclictest41-21ksoftirqd/312:25:133
26774994331,3cyclictest41-21ksoftirqd/307:15:143
26774994322,4cyclictest41-21ksoftirqd/310:35:133
26774994317,6cyclictest41-21ksoftirqd/310:55:133
26774994315,4cyclictest41-21ksoftirqd/307:35:123
26774994314,10cyclictest41-21ksoftirqd/311:25:173
26774994313,7cyclictest41-21ksoftirqd/310:15:203
2677499429,10cyclictest41-21ksoftirqd/311:10:003
2677499426,2cyclictest41-21ksoftirqd/311:40:283
26774994214,3cyclictest41-21ksoftirqd/308:44:193
26774994213,7cyclictest41-21ksoftirqd/308:05:163
26774994210,3cyclictest41-21ksoftirqd/309:05:213
2677499420,3cyclictest121rcu_preempt12:35:133
138491410,0ptp4l401ktimersoftd/308:25:493
26774994010,4cyclictest41-21ksoftirqd/309:00:133
2677499399,9cyclictest41-21ksoftirqd/309:45:003
2677499399,8cyclictest41-21ksoftirqd/307:25:003
2677499396,7cyclictest41-21ksoftirqd/312:00:003
2677499390,3cyclictest121rcu_preempt11:15:203
26772993934,3cyclictest25-21ksoftirqd/111:25:141
26771993934,3cyclictest9-21ksoftirqd/009:30:000
26774993833,3cyclictest41-21ksoftirqd/308:14:593
26774993832,3cyclictest41-21ksoftirqd/308:00:163
26774993812,7cyclictest41-21ksoftirqd/311:45:183
213072380,2sleep10-21swapper/111:35:011
213072380,2sleep10-21swapper/111:35:001
26773993731,4cyclictest33-21ksoftirqd/210:34:072
2677399370,2cyclictest62350irq/146-enp4s0-07:25:232
26771993731,4cyclictest9-21ksoftirqd/008:51:000
2677499360,3cyclictest121rcu_preempt07:45:003
26773993631,3cyclictest33-21ksoftirqd/211:55:012
26773993631,3cyclictest33-21ksoftirqd/209:53:402
26773993631,3cyclictest33-21ksoftirqd/209:20:512
26773993631,3cyclictest33-21ksoftirqd/207:40:262
26773993630,4cyclictest33-21ksoftirqd/212:07:152
26772993632,2cyclictest25-21ksoftirqd/109:35:011
26772993630,4cyclictest25-21ksoftirqd/110:22:401
26772993630,4cyclictest25-21ksoftirqd/108:28:271
26772993630,4cyclictest25-21ksoftirqd/108:22:281
26772993630,4cyclictest25-21ksoftirqd/107:48:351
26772993629,4cyclictest25-21ksoftirqd/110:27:291
26771993631,3cyclictest9-21ksoftirqd/010:39:590
26771993630,4cyclictest9-21ksoftirqd/011:56:380
26771993630,4cyclictest9-21ksoftirqd/007:52:580
26771993629,4cyclictest9-21ksoftirqd/011:50:000
26774993530,3cyclictest41-21ksoftirqd/310:05:003
26773993530,3cyclictest33-21ksoftirqd/212:28:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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