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2026-08-03 - 13:14
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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 100 highest latencies:
System rackdslot4.osadl.org (updated Mon Aug 03, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53612208173,23sleep30-21swapper/319:09:443
53492204171,22sleep10-21swapper/119:09:341
50322204170,23sleep20-21swapper/219:05:332
50582201167,22sleep00-21swapper/019:05:470
427921500,8sleep3567999cyclictest21:15:153
1423321440,6sleep2567899cyclictest20:30:172
5679996023,8cyclictest41-21ksoftirqd/300:38:333
5679996022,8cyclictest41-21ksoftirqd/300:22:383
5679996019,7cyclictest41-21ksoftirqd/322:35:053
5678996029,8cyclictest33-21ksoftirqd/221:25:312
5679995921,8cyclictest41-21ksoftirqd/323:42:463
5679995921,7cyclictest41-21ksoftirqd/323:19:063
5678995927,9cyclictest33-21ksoftirqd/223:05:002
5678995926,10cyclictest33-21ksoftirqd/223:50:142
5679995826,6cyclictest41-21ksoftirqd/320:05:133
5679995822,9cyclictest41-21ksoftirqd/321:29:113
5679995821,9cyclictest41-21ksoftirqd/319:19:493
5679995728,3cyclictest41-21ksoftirqd/321:35:153
5679995722,9cyclictest41-21ksoftirqd/300:05:453
5679995722,8cyclictest41-21ksoftirqd/320:25:283
5679995721,9cyclictest41-21ksoftirqd/323:12:083
567899578,7cyclictest33-21ksoftirqd/222:55:242
5678995733,11cyclictest33-21ksoftirqd/219:20:002
5678995726,9cyclictest33-21ksoftirqd/222:15:012
5679995625,3cyclictest41-21ksoftirqd/321:45:153
5679995623,9cyclictest41-21ksoftirqd/320:00:003
5679995620,9cyclictest41-21ksoftirqd/320:02:163
5679995620,10cyclictest41-21ksoftirqd/321:24:213
567999556,9cyclictest41-21ksoftirqd/323:35:163
567999556,9cyclictest41-21ksoftirqd/320:30:213
567999556,8cyclictest41-21ksoftirqd/323:34:393
5679995523,9cyclictest41-21ksoftirqd/319:35:013
5679995523,9cyclictest41-21ksoftirqd/319:35:013
5679995521,9cyclictest41-21ksoftirqd/320:51:083
5679995521,8cyclictest41-21ksoftirqd/319:14:113
5679995521,7cyclictest41-21ksoftirqd/300:15:123
567899556,8cyclictest33-21ksoftirqd/219:10:142
5678995518,9cyclictest33-21ksoftirqd/219:45:212
5679995421,8cyclictest41-21ksoftirqd/323:49:003
567999540,8cyclictest41-21ksoftirqd/320:40:003
567899543,9cyclictest33-21ksoftirqd/223:05:232
567899542,8cyclictest33-21ksoftirqd/223:44:592
5679995321,11cyclictest41-21ksoftirqd/300:12:033
567899536,8cyclictest33-21ksoftirqd/222:40:242
5678995324,10cyclictest33-21ksoftirqd/220:25:132
5678995322,9cyclictest33-21ksoftirqd/222:35:142
567899531,6cyclictest28233-21apt-get21:00:012
5679995227,3cyclictest41-21ksoftirqd/321:10:233
5679995222,8cyclictest41-21ksoftirqd/322:31:293
5679995222,8cyclictest41-21ksoftirqd/319:21:253
5679995220,9cyclictest41-21ksoftirqd/320:45:213
567899526,7cyclictest33-21ksoftirqd/223:20:142
567899524,4cyclictest33-21ksoftirqd/221:55:002
567899523,9cyclictest33-21ksoftirqd/220:20:252
567899520,10cyclictest33-21ksoftirqd/222:20:142
567999513,9cyclictest41-21ksoftirqd/321:05:173
5679995122,8cyclictest41-21ksoftirqd/322:02:083
567899514,9cyclictest223-21systemd-journal20:20:002
567899514,10cyclictest223-21systemd-journal19:30:002
567899513,9cyclictest33-21ksoftirqd/200:40:002
567899511,10cyclictest33-21ksoftirqd/223:25:162
567999503,9cyclictest41-21ksoftirqd/323:05:153
567999503,8cyclictest41-21ksoftirqd/323:20:163
567999502,11cyclictest41-21ksoftirqd/321:50:213
567999500,10cyclictest41-21ksoftirqd/322:10:243
5678995039,3cyclictest33-21ksoftirqd/220:40:542
567899502,8cyclictest33-21ksoftirqd/220:05:272
567999495,8cyclictest41-21ksoftirqd/300:30:183
567999494,7cyclictest41-21ksoftirqd/321:00:013
5679994925,8cyclictest41-21ksoftirqd/321:45:003
5679994921,9cyclictest41-21ksoftirqd/321:01:153
567899496,8cyclictest33-21ksoftirqd/219:55:262
567899494,11cyclictest121rcu_preempt19:20:122
567899493,10cyclictest33-21ksoftirqd/221:35:192
5678994929,10cyclictest33-21ksoftirqd/221:50:002
567899491,9cyclictest33-21ksoftirqd/221:15:142
5678994917,9cyclictest33-21ksoftirqd/222:15:132
567899491,10cyclictest33-21ksoftirqd/222:10:012
567899491,10cyclictest33-21ksoftirqd/222:10:012
567899491,10cyclictest33-21ksoftirqd/220:10:242
567899491,10cyclictest33-21ksoftirqd/219:40:172
567999483,11cyclictest41-21ksoftirqd/322:20:223
567999482,8cyclictest41-21ksoftirqd/322:55:273
5679994822,9cyclictest41-21ksoftirqd/322:45:183
5679994817,9cyclictest41-21ksoftirqd/323:00:193
5679994816,7cyclictest41-21ksoftirqd/322:25:173
567899484,9cyclictest33-21ksoftirqd/223:30:272
567899482,8cyclictest33-21ksoftirqd/222:35:002
567899481,9cyclictest33-21ksoftirqd/221:05:262
5678994819,3cyclictest33-21ksoftirqd/200:20:192
567999473,9cyclictest41-21ksoftirqd/319:50:193
567999473,10cyclictest41-21ksoftirqd/319:45:003
5679994718,8cyclictest41-21ksoftirqd/321:30:143
567899477,3cyclictest33-21ksoftirqd/220:45:202
567899475,8cyclictest33-21ksoftirqd/222:50:132
567899475,7cyclictest0-21swapper/221:40:142
5678994736,3cyclictest33-21ksoftirqd/200:00:132
5678994729,9cyclictest33-21ksoftirqd/222:45:162
567899472,8cyclictest33-21ksoftirqd/219:50:192
567899470,8cyclictest33-21ksoftirqd/220:00:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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