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2026-04-15 - 00:55
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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 Apr 14, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32542232167,22sleep20-21swapper/207:07:532
138591213185,19phc2sys0-21swapper/307:06:593
31852205159,35sleep10-21swapper/107:06:581
31892202169,22sleep00-21swapper/007:07:020
3721996529,7cyclictest41-21ksoftirqd/307:35:263
3721996126,10cyclictest41-21ksoftirqd/308:25:213
3721996126,10cyclictest41-21ksoftirqd/308:25:203
3721996028,8cyclictest41-21ksoftirqd/309:05:213
3721996023,9cyclictest41-21ksoftirqd/308:40:003
3721995930,3cyclictest41-21ksoftirqd/312:20:193
3721995926,4cyclictest41-21ksoftirqd/308:25:013
3721995923,10cyclictest41-21ksoftirqd/309:45:003
3721995921,7cyclictest41-21ksoftirqd/307:10:253
3721995830,3cyclictest41-21ksoftirqd/308:10:193
3721995829,8cyclictest41-21ksoftirqd/309:30:223
3721995822,4cyclictest41-21ksoftirqd/307:50:163
3721995726,4cyclictest41-21ksoftirqd/312:00:013
3721995726,3cyclictest41-21ksoftirqd/308:05:183
3721995724,7cyclictest41-21ksoftirqd/309:00:213
3721995724,5cyclictest41-21ksoftirqd/311:50:243
3721995721,7cyclictest41-21ksoftirqd/308:00:133
3721995626,4cyclictest41-21ksoftirqd/312:25:223
3721995626,10cyclictest41-21ksoftirqd/311:45:193
3721995626,10cyclictest41-21ksoftirqd/311:45:193
3721995625,8cyclictest41-21ksoftirqd/310:35:203
3721995625,4cyclictest41-21ksoftirqd/309:25:143
3721995624,5cyclictest41-21ksoftirqd/310:25:013
3721995623,8cyclictest41-21ksoftirqd/308:40:233
3721995622,7cyclictest41-21ksoftirqd/309:35:213
3721995622,7cyclictest41-21ksoftirqd/309:35:203
3721995622,7cyclictest41-21ksoftirqd/309:10:253
3721995528,4cyclictest41-21ksoftirqd/307:40:253
3721995527,3cyclictest41-21ksoftirqd/312:30:253
3721995526,8cyclictest41-21ksoftirqd/310:50:233
3721995525,8cyclictest41-21ksoftirqd/309:20:143
3721995524,7cyclictest41-21ksoftirqd/312:05:233
3721995524,4cyclictest41-21ksoftirqd/307:20:153
3721995523,8cyclictest41-21ksoftirqd/307:30:133
3721995523,6cyclictest41-21ksoftirqd/307:25:143
3721995522,8cyclictest41-21ksoftirqd/310:55:233
3721995522,4cyclictest41-21ksoftirqd/307:45:263
3721995522,4cyclictest41-21ksoftirqd/307:45:253
265302550,2sleep10-21swapper/107:55:171
3721995425,9cyclictest41-21ksoftirqd/308:50:203
3721995424,3cyclictest41-21ksoftirqd/312:15:193
3721995422,7cyclictest41-21ksoftirqd/309:15:253
3721995422,7cyclictest41-21ksoftirqd/308:30:253
3721995422,4cyclictest41-21ksoftirqd/310:10:133
266032540,2sleep126604-21irqrtprio10:05:191
3721995325,8cyclictest41-21ksoftirqd/311:15:243
3721995323,7cyclictest41-21ksoftirqd/309:55:193
3721995321,6cyclictest41-21ksoftirqd/310:25:203
3721995321,11cyclictest41-21ksoftirqd/308:45:433
224712530,2sleep20-21swapper/208:50:252
3721995223,9cyclictest41-21ksoftirqd/311:05:163
3721995222,9cyclictest41-21ksoftirqd/308:15:143
3721995221,7cyclictest41-21ksoftirqd/311:40:163
3721995220,9cyclictest41-21ksoftirqd/310:40:193
3721995220,3cyclictest41-21ksoftirqd/307:15:173
3721995220,10cyclictest41-21ksoftirqd/310:45:163
3721995218,8cyclictest41-21ksoftirqd/308:00:013
3721995214,11cyclictest41-21ksoftirqd/311:00:143
13042520,4sleep21308-21hwlatdetect11:25:182
3721995122,4cyclictest41-21ksoftirqd/309:45:143
3721995119,8cyclictest41-21ksoftirqd/311:10:143
372199503,7cyclictest41-21ksoftirqd/308:55:213
3721995023,8cyclictest41-21ksoftirqd/310:15:133
3721995019,7cyclictest41-21ksoftirqd/311:20:153
372199493,9cyclictest41-21ksoftirqd/310:30:153
3721994920,8cyclictest41-21ksoftirqd/309:50:213
3721994919,8cyclictest41-21ksoftirqd/310:00:163
3721994918,7cyclictest41-21ksoftirqd/311:35:163
372199491,7cyclictest41-21ksoftirqd/312:35:163
60062480,2sleep10-21swapper/111:35:161
372199484,3cyclictest41-21ksoftirqd/312:15:003
36782480,3sleep10-21swapper/108:15:141
318852480,1sleep20-21swapper/209:10:202
372199475,3cyclictest41-21ksoftirqd/312:00:133
3721994617,7cyclictest41-21ksoftirqd/310:05:223
372199454,6cyclictest1303-21runrttasks11:26:043
3719994539,4cyclictest23160-21cron08:55:011
372199431,7cyclictest41-21ksoftirqd/311:30:143
50798380,2rtkit-daemon506-21rtkit-daemon07:48:101
50798380,2rtkit-daemon506-21rtkit-daemon07:48:091
3719993832,3cyclictest13770-21fschecks_count11:50:151
3720993733,2cyclictest33-21ksoftirqd/211:45:002
3720993732,3cyclictest33-21ksoftirqd/211:20:002
3720993732,3cyclictest33-21ksoftirqd/209:42:492
3720993732,2cyclictest33-21ksoftirqd/210:25:002
3720993731,4cyclictest33-21ksoftirqd/210:33:072
3720993726,9cyclictest33-21ksoftirqd/212:15:192
3719993732,3cyclictest25-21ksoftirqd/111:35:001
3719993730,4cyclictest25-21ksoftirqd/112:10:021
3719993730,4cyclictest25-21ksoftirqd/109:00:011
3719993730,4cyclictest25-21ksoftirqd/107:42:201
3719993729,5cyclictest25-21ksoftirqd/108:10:001
3720993631,3cyclictest33-21ksoftirqd/211:55:102
3720993631,3cyclictest33-21ksoftirqd/210:27:342
3720993631,3cyclictest33-21ksoftirqd/210:05:002
3720993631,3cyclictest33-21ksoftirqd/208:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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