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2026-04-05 - 20:14
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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 Sun Apr 05, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6082231167,52sleep30-21swapper/307:09:323
5802202168,22sleep10-21swapper/107:09:101
4882202169,22sleep00-21swapper/007:08:080
4142202170,21sleep20-21swapper/207:07:212
138591161120,14phc2sys0-21swapper/307:10:013
95799670,3cyclictest12068-21latency09:40:212
248152590,2sleep30-21swapper/309:00:243
138491530,1ptp4l401ktimersoftd/308:39:493
95899456,4cyclictest41-21ksoftirqd/308:45:143
95899450,6cyclictest41-21ksoftirqd/311:07:483
95899449,4cyclictest41-21ksoftirqd/311:50:213
958994436,5cyclictest4162-21cut08:20:153
138491440,0ptp4l401ktimersoftd/309:34:463
958994330,3cyclictest41-21ksoftirqd/309:10:003
958994330,11cyclictest41-21ksoftirqd/309:25:153
958994324,16cyclictest41-21ksoftirqd/312:40:003
958994313,8cyclictest41-21ksoftirqd/307:25:143
958994313,6cyclictest41-21ksoftirqd/309:10:273
95799430,26cyclictest21833-21netstat11:05:212
138491430,0ptp4l401ktimersoftd/309:24:393
138491430,0ptp4l401ktimersoftd/309:15:203
138491430,0ptp4l401ktimersoftd/308:43:163
138491430,0ptp4l401ktimersoftd/308:30:333
958994214,3cyclictest41-21ksoftirqd/307:40:193
958994212,4cyclictest41-21ksoftirqd/310:40:283
958994135,3cyclictest41-21ksoftirqd/312:20:003
958994130,9cyclictest41-21ksoftirqd/307:55:143
958994117,7cyclictest41-21ksoftirqd/308:10:283
958994111,10cyclictest41-21ksoftirqd/310:05:273
956994135,3cyclictest25896-21cron08:00:011
138491410,0ptp4l401ktimersoftd/312:33:073
138491410,0ptp4l401ktimersoftd/311:47:133
138491410,0ptp4l401ktimersoftd/310:45:143
95899409,4cyclictest41-21ksoftirqd/311:40:223
958994028,3cyclictest41-21ksoftirqd/311:30:243
958993934,2cyclictest41-21ksoftirqd/307:25:013
958993933,3cyclictest41-21ksoftirqd/308:05:003
958993927,9cyclictest41-21ksoftirqd/311:15:263
95899391,5cyclictest41-21ksoftirqd/310:58:053
95899391,5cyclictest41-21ksoftirqd/310:35:013
95899391,5cyclictest41-21ksoftirqd/310:03:093
95899391,4cyclictest41-21ksoftirqd/307:35:093
958993912,3cyclictest41-21ksoftirqd/309:40:263
958993910,3cyclictest41-21ksoftirqd/312:05:063
957993925,12cyclictest33-21ksoftirqd/211:15:102
958993834,3cyclictest41-21ksoftirqd/311:25:113
958993833,3cyclictest41-21ksoftirqd/307:50:263
95899382,5cyclictest41-21ksoftirqd/309:45:273
95899382,5cyclictest41-21ksoftirqd/308:16:053
95899382,5cyclictest41-21ksoftirqd/308:16:053
95899381,5cyclictest41-21ksoftirqd/310:51:513
95899381,5cyclictest41-21ksoftirqd/310:17:363
95899381,5cyclictest41-21ksoftirqd/308:26:243
95899381,4cyclictest41-21ksoftirqd/311:21:443
95899381,4cyclictest41-21ksoftirqd/307:17:173
95899381,4cyclictest41-21ksoftirqd/307:17:173
95899380,5cyclictest41-21ksoftirqd/312:23:053
957993831,5cyclictest33-21ksoftirqd/208:15:032
957993831,5cyclictest33-21ksoftirqd/208:15:032
956993831,5cyclictest25-21ksoftirqd/108:28:111
955993824,12cyclictest9-21ksoftirqd/007:37:090
95899374,5cyclictest41-21ksoftirqd/308:05:203
95899373,8cyclictest41-21ksoftirqd/309:55:153
958993733,2cyclictest41-21ksoftirqd/311:00:253
958993732,3cyclictest41-21ksoftirqd/312:00:003
958993732,3cyclictest41-21ksoftirqd/311:40:013
95899372,4cyclictest41-21ksoftirqd/311:14:053
95899371,5cyclictest41-21ksoftirqd/310:26:433
95899371,5cyclictest41-21ksoftirqd/309:38:573
95899371,4cyclictest41-21ksoftirqd/312:25:103
956993731,4cyclictest25-21ksoftirqd/110:13:221
955993724,11cyclictest9-21ksoftirqd/010:50:090
95899363,3cyclictest41-21ksoftirqd/309:50:243
958993631,3cyclictest41-21ksoftirqd/310:30:193
958993631,3cyclictest41-21ksoftirqd/308:55:143
95899361,3cyclictest41-21ksoftirqd/307:32:483
95899361,3cyclictest121rcu_preempt07:45:143
95899361,3cyclictest121rcu_preempt07:45:143
95899360,5cyclictest41-21ksoftirqd/310:11:463
957993630,4cyclictest33-21ksoftirqd/212:33:122
957993630,4cyclictest33-21ksoftirqd/212:27:182
957993630,4cyclictest33-21ksoftirqd/207:38:552
956993631,3cyclictest25-21ksoftirqd/110:43:361
956993630,4cyclictest25-21ksoftirqd/112:11:161
955993629,4cyclictest9-21ksoftirqd/008:24:220
138491360,0ptp4l401ktimersoftd/312:02:393
95899353,4cyclictest41-21ksoftirqd/308:55:013
958993530,3cyclictest41-21ksoftirqd/312:10:133
957993530,3cyclictest33-21ksoftirqd/209:02:242
957993529,4cyclictest33-21ksoftirqd/212:20:002
957993529,4cyclictest33-21ksoftirqd/211:53:292
957993529,4cyclictest33-21ksoftirqd/211:33:422
957993529,4cyclictest33-21ksoftirqd/211:27:522
957993529,4cyclictest33-21ksoftirqd/210:37:502
957993529,4cyclictest33-21ksoftirqd/209:22:212
957993529,4cyclictest33-21ksoftirqd/208:31:422
957993529,4cyclictest33-21ksoftirqd/208:14:522
957993528,4cyclictest33-21ksoftirqd/209:51:292
957993527,5cyclictest33-21ksoftirqd/210:52:462
956993530,3cyclictest25-21ksoftirqd/111:35:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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