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2026-04-22 - 07:58
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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 Wed Apr 22, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
236792204170,22sleep10-21swapper/119:09:471
236752204171,22sleep20-21swapper/219:09:442
233822204171,21sleep30-21swapper/319:05:593
233512199166,22sleep00-21swapper/019:05:360
269372820,2sleep2321ktimersoftd/223:35:172
269262710,4sleep326927-21cat20:20:013
23990996533,4cyclictest41-21ksoftirqd/319:35:003
23990996332,8cyclictest41-21ksoftirqd/300:10:273
23990996331,4cyclictest41-21ksoftirqd/300:30:143
23990996232,3cyclictest41-21ksoftirqd/320:50:013
23990996230,5cyclictest41-21ksoftirqd/320:35:283
23990996230,5cyclictest41-21ksoftirqd/320:35:283
23990996229,8cyclictest41-21ksoftirqd/321:20:203
23990996229,4cyclictest41-21ksoftirqd/322:55:153
23990996228,11cyclictest41-21ksoftirqd/322:15:003
23990996132,3cyclictest41-21ksoftirqd/300:00:183
23990996130,7cyclictest41-21ksoftirqd/322:00:133
23990996130,5cyclictest41-21ksoftirqd/323:40:163
23990996130,4cyclictest41-21ksoftirqd/321:35:193
23990996130,10cyclictest41-21ksoftirqd/319:15:243
23990996129,8cyclictest41-21ksoftirqd/320:05:203
23990996129,11cyclictest41-21ksoftirqd/322:50:013
23990996127,4cyclictest41-21ksoftirqd/321:50:183
23990996123,11cyclictest41-21ksoftirqd/320:10:013
23990996031,4cyclictest41-21ksoftirqd/321:30:003
23990996029,9cyclictest41-21ksoftirqd/320:00:173
23990996029,4cyclictest41-21ksoftirqd/322:35:003
23990995929,9cyclictest41-21ksoftirqd/323:10:233
23990995929,4cyclictest41-21ksoftirqd/323:50:163
23990995929,4cyclictest41-21ksoftirqd/323:50:163
23990995929,3cyclictest41-21ksoftirqd/300:35:203
23990995926,5cyclictest41-21ksoftirqd/323:45:123
23990995926,4cyclictest41-21ksoftirqd/323:35:133
23990995926,4cyclictest41-21ksoftirqd/323:05:193
23990995925,7cyclictest41-21ksoftirqd/300:05:143
23990995925,4cyclictest41-21ksoftirqd/323:15:253
23990995923,4cyclictest41-21ksoftirqd/322:35:173
23990995829,8cyclictest41-21ksoftirqd/321:45:163
23990995828,4cyclictest41-21ksoftirqd/321:55:273
23990995827,4cyclictest41-21ksoftirqd/319:40:133
23990995826,8cyclictest41-21ksoftirqd/321:30:133
23990995825,4cyclictest41-21ksoftirqd/323:00:253
23990995821,7cyclictest41-21ksoftirqd/300:25:153
23990995728,4cyclictest41-21ksoftirqd/322:05:183
23990995726,7cyclictest41-21ksoftirqd/321:05:143
23990995725,4cyclictest41-21ksoftirqd/323:25:223
23990995723,4cyclictest41-21ksoftirqd/323:55:123
23990995720,7cyclictest41-21ksoftirqd/322:40:003
23990995720,6cyclictest41-21ksoftirqd/319:45:243
23990995720,4cyclictest41-21ksoftirqd/319:55:243
23990995720,4cyclictest41-21ksoftirqd/319:55:243
23990995627,9cyclictest41-21ksoftirqd/320:55:163
23990995627,3cyclictest41-21ksoftirqd/320:30:143
23990995626,8cyclictest41-21ksoftirqd/300:25:013
23990995626,4cyclictest41-21ksoftirqd/323:20:153
23990995626,4cyclictest41-21ksoftirqd/323:20:153
23990995623,8cyclictest41-21ksoftirqd/319:30:003
23990995623,4cyclictest41-21ksoftirqd/319:20:133
23988995652,2cyclictest25-21ksoftirqd/123:30:001
23990995526,8cyclictest41-21ksoftirqd/322:50:173
23990995526,8cyclictest41-21ksoftirqd/322:50:173
23990995526,4cyclictest41-21ksoftirqd/320:50:143
23990995525,10cyclictest41-21ksoftirqd/321:15:273
23990995520,6cyclictest41-21ksoftirqd/322:15:003
2399099545,7cyclictest5576-21proc_pri19:35:253
23990995324,8cyclictest41-21ksoftirqd/319:10:263
23990995320,4cyclictest41-21ksoftirqd/321:02:403
23990995319,4cyclictest41-21ksoftirqd/322:25:153
23990995219,4cyclictest41-21ksoftirqd/320:40:343
87882510,1sleep08792-21timerwakeupswit20:45:250
2399099503,8cyclictest41-21ksoftirqd/322:20:153
2399099503,7cyclictest41-21ksoftirqd/321:40:223
192962500,2sleep0101ktimersoftd/023:20:140
192962500,2sleep0101ktimersoftd/023:20:140
2399099496,3cyclictest41-21ksoftirqd/321:10:143
2399099484,6cyclictest41-21ksoftirqd/320:20:223
23990994837,3cyclictest41-21ksoftirqd/300:20:013
2399099481,8cyclictest41-21ksoftirqd/320:25:133
2399099454,4cyclictest41-21ksoftirqd/323:35:003
2399099452,7cyclictest41-21ksoftirqd/319:50:133
2369624532,7sleep20-21swapper/219:10:002
2398899442,40cyclictest19162-21cron21:10:001
23989994019,19cyclictest33-21ksoftirqd/223:40:122
281052390,4sleep228106-21kernelversion20:20:202
23988993934,3cyclictest25-21ksoftirqd/119:50:001
23988993934,3cyclictest25-21ksoftirqd/119:35:001
50798380,5rtkit-daemon0-21swapper/000:35:390
23989993832,3cyclictest19165-21sh21:10:002
23989993831,4cyclictest6448-21cron19:40:002
2398999380,36cyclictest0-21swapper/200:20:432
23988993833,3cyclictest25-21ksoftirqd/122:40:181
23988993829,7cyclictest25-21ksoftirqd/120:50:271
2398899382,5cyclictest25-21ksoftirqd/123:05:191
50798370,1rtkit-daemon0-21swapper/000:17:370
23989993731,4cyclictest33-21ksoftirqd/222:28:452
23989993731,4cyclictest33-21ksoftirqd/220:40:462
23989993731,4cyclictest33-21ksoftirqd/220:10:532
23988993732,3cyclictest25-21ksoftirqd/121:35:001
23988993732,3cyclictest25-21ksoftirqd/121:15:151
23988993732,3cyclictest25-21ksoftirqd/120:05:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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