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2026-03-14 - 22:21
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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 rackdslot3.osadl.org (updated Sat Mar 14, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122852204170,23sleep30-21swapper/307:08:573
120712204172,21sleep20-21swapper/207:06:112
122252201167,23sleep00-21swapper/007:08:100
120652201168,22sleep10-21swapper/107:06:061
2007621660,7sleep11266899cyclictest09:40:141
805921500,5sleep01266799cyclictest11:30:120
125962700,6sleep012590-21phc2sys10:30:220
139391650,1ptp4l401ktimersoftd/311:50:153
139391600,0ptp4l401ktimersoftd/308:59:253
64482550,4sleep30-21swapper/309:10:183
139391530,1ptp4l401ktimersoftd/312:06:183
139391520,0ptp4l401ktimersoftd/310:33:253
139391440,0ptp4l401ktimersoftd/307:24:503
12669994337,4cyclictest8775-21cron10:25:002
12669993934,3cyclictest33-21ksoftirqd/210:35:002
12670993833,3cyclictest41-21ksoftirqd/309:20:143
12669993831,4cyclictest33-21ksoftirqd/208:24:092
12668993731,4cyclictest25-21ksoftirqd/111:40:121
12668993731,4cyclictest25-21ksoftirqd/111:32:291
12667993733,2cyclictest9-21ksoftirqd/008:00:000
139391360,0ptp4l401ktimersoftd/309:55:133
12670993631,3cyclictest41-21ksoftirqd/309:10:013
12670993631,3cyclictest41-21ksoftirqd/309:10:003
12670993631,3cyclictest41-21ksoftirqd/308:50:003
12670993630,4cyclictest41-21ksoftirqd/309:00:533
12670993630,3cyclictest41-21ksoftirqd/312:15:123
12668993631,3cyclictest25-21ksoftirqd/112:36:581
12668993630,4cyclictest25-21ksoftirqd/107:29:481
12670993529,4cyclictest41-21ksoftirqd/310:20:123
12670993529,4cyclictest41-21ksoftirqd/308:18:313
12670993529,4cyclictest41-21ksoftirqd/308:11:063
12669993530,3cyclictest33-21ksoftirqd/211:59:152
12669993530,3cyclictest33-21ksoftirqd/208:55:102
12669993529,4cyclictest33-21ksoftirqd/212:32:322
12669993529,4cyclictest33-21ksoftirqd/212:28:232
12669993529,4cyclictest33-21ksoftirqd/208:54:052
12668993530,3cyclictest25-21ksoftirqd/107:24:431
12668993529,4cyclictest25-21ksoftirqd/111:29:121
12668993529,4cyclictest25-21ksoftirqd/110:30:531
12668993529,4cyclictest25-21ksoftirqd/110:19:011
12668993529,4cyclictest25-21ksoftirqd/109:31:111
12668993529,4cyclictest25-21ksoftirqd/108:33:421
12668993529,4cyclictest25-21ksoftirqd/107:17:531
12667993529,4cyclictest9-21ksoftirqd/010:47:200
12667993514,3cyclictest29617-21timerandwakeup08:50:240
139391340,11ptp4l0-21swapper/309:53:563
12670993430,3cyclictest41-21ksoftirqd/312:25:213
12670993430,2cyclictest41-21ksoftirqd/308:00:003
12670993429,3cyclictest41-21ksoftirqd/312:10:133
12670993429,3cyclictest41-21ksoftirqd/311:34:593
12670993429,3cyclictest41-21ksoftirqd/310:46:193
12670993429,3cyclictest41-21ksoftirqd/307:55:013
12670993429,3cyclictest41-21ksoftirqd/307:25:493
12670993428,4cyclictest41-21ksoftirqd/311:39:583
12669993429,3cyclictest33-21ksoftirqd/208:32:152
12669993428,4cyclictest33-21ksoftirqd/207:19:452
12669993428,3cyclictest33-21ksoftirqd/208:05:092
12668993429,3cyclictest25-21ksoftirqd/111:55:121
12668993429,3cyclictest25-21ksoftirqd/111:05:111
12668993429,3cyclictest25-21ksoftirqd/110:57:351
12668993428,4cyclictest25-21ksoftirqd/110:28:121
12668993428,4cyclictest25-21ksoftirqd/109:16:461
12667993428,4cyclictest9-21ksoftirqd/008:25:510
57898330,2rtkit-daemon577-21rtkit-daemon10:55:243
139391330,1ptp4l0-21swapper/308:50:503
139391330,0ptp4l401ktimersoftd/311:43:363
12670993330,2cyclictest41-21ksoftirqd/311:50:003
12670993329,3cyclictest41-21ksoftirqd/310:05:173
12670993328,3cyclictest41-21ksoftirqd/312:20:203
12670993328,3cyclictest41-21ksoftirqd/311:56:143
12670993328,3cyclictest41-21ksoftirqd/311:25:133
12670993328,3cyclictest41-21ksoftirqd/310:18:093
12670993327,4cyclictest41-21ksoftirqd/308:31:353
12670993327,4cyclictest41-21ksoftirqd/307:44:183
12670993326,4cyclictest41-21ksoftirqd/310:40:163
1267099330,2cyclictest121rcu_preempt11:10:133
12669993328,3cyclictest33-21ksoftirqd/211:25:262
12669993328,3cyclictest33-21ksoftirqd/210:10:012
12669993328,3cyclictest33-21ksoftirqd/207:38:002
12669993327,4cyclictest33-21ksoftirqd/210:56:212
12669993327,4cyclictest33-21ksoftirqd/210:02:452
12669993327,4cyclictest33-21ksoftirqd/209:47:202
12669993327,4cyclictest33-21ksoftirqd/207:33:382
12669993327,4cyclictest33-21ksoftirqd/207:14:202
12669993326,5cyclictest33-21ksoftirqd/211:33:202
12669993326,5cyclictest33-21ksoftirqd/209:08:382
12669993326,5cyclictest33-21ksoftirqd/209:08:382
12669993324,7cyclictest33-21ksoftirqd/210:25:262
12668993328,3cyclictest25-21ksoftirqd/112:29:231
12668993328,3cyclictest25-21ksoftirqd/111:20:011
12668993328,3cyclictest25-21ksoftirqd/108:01:421
12668993328,3cyclictest25-21ksoftirqd/107:44:351
12668993327,4cyclictest25-21ksoftirqd/112:17:381
12668993327,4cyclictest25-21ksoftirqd/111:37:471
12668993327,4cyclictest25-21ksoftirqd/110:45:041
12668993327,4cyclictest25-21ksoftirqd/110:02:431
12668993327,4cyclictest25-21ksoftirqd/109:46:201
12668993326,5cyclictest25-21ksoftirqd/112:08:481
12667993327,4cyclictest9-21ksoftirqd/012:02:220
12667993327,4cyclictest9-21ksoftirqd/010:39:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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