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2026-05-11 - 14:15
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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 Mon May 11, 2026 00:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491218175,33phc2sys0-21swapper/319:07:593
235562206173,22sleep20-21swapper/219:09:582
234342206172,23sleep00-21swapper/019:08:230
232222204172,21sleep10-21swapper/119:05:431
390621710,6sleep22385399cyclictest19:35:162
481721280,6sleep32385499cyclictest23:00:133
254502640,4sleep225454-21timerandwakeup19:10:252
311172590,1sleep331118-21grep19:25:143
145072590,2sleep00-21swapper/000:25:170
23854995732,2cyclictest121rcu_preempt20:20:213
23854995732,2cyclictest121rcu_preempt20:20:213
139391560,1ptp4l401ktimersoftd/323:14:203
23854995419,4cyclictest41-21ksoftirqd/322:15:003
23854995318,8cyclictest41-21ksoftirqd/300:24:593
23854995116,4cyclictest41-21ksoftirqd/323:45:003
23854995019,4cyclictest41-21ksoftirqd/300:35:233
23854995017,4cyclictest41-21ksoftirqd/300:15:263
23854994917,8cyclictest41-21ksoftirqd/321:50:273
23854994819,4cyclictest41-21ksoftirqd/322:40:193
23854994818,7cyclictest41-21ksoftirqd/323:20:163
23854994818,4cyclictest41-21ksoftirqd/319:30:143
23854994817,8cyclictest41-21ksoftirqd/320:50:163
23854994816,8cyclictest41-21ksoftirqd/322:50:193
23854994816,4cyclictest41-21ksoftirqd/323:15:263
23854994816,4cyclictest41-21ksoftirqd/320:40:013
23854994813,4cyclictest41-21ksoftirqd/323:45:263
23854994719,4cyclictest41-21ksoftirqd/322:00:133
23854994718,7cyclictest41-21ksoftirqd/321:05:263
23854994717,4cyclictest41-21ksoftirqd/323:30:013
23854994714,3cyclictest41-21ksoftirqd/322:35:143
23854994714,3cyclictest41-21ksoftirqd/322:35:143
2385499469,10cyclictest41-21ksoftirqd/300:30:213
2385499468,6cyclictest41-21ksoftirqd/320:45:153
2385499464,9cyclictest41-21ksoftirqd/322:10:003
23854994617,4cyclictest41-21ksoftirqd/320:25:183
23854994616,7cyclictest41-21ksoftirqd/300:15:013
23854994615,4cyclictest41-21ksoftirqd/320:30:133
23854994614,3cyclictest41-21ksoftirqd/321:25:203
23854994613,7cyclictest41-21ksoftirqd/319:55:263
23854994613,4cyclictest41-21ksoftirqd/323:35:003
23854994610,5cyclictest41-21ksoftirqd/321:55:233
23854994516,7cyclictest41-21ksoftirqd/319:35:193
23854994515,7cyclictest41-21ksoftirqd/319:15:153
23854994514,8cyclictest41-21ksoftirqd/321:20:253
23854994514,8cyclictest41-21ksoftirqd/300:25:163
23853994531,12cyclictest33-21ksoftirqd/200:29:592
2385499446,6cyclictest41-21ksoftirqd/322:15:013
2385499442,3cyclictest121rcu_preempt21:00:013
23854994420,6cyclictest41-21ksoftirqd/320:10:203
23854994416,3cyclictest41-21ksoftirqd/323:05:163
23854994414,3cyclictest41-21ksoftirqd/319:50:163
23854994414,3cyclictest41-21ksoftirqd/300:00:133
23854994412,8cyclictest41-21ksoftirqd/321:35:143
23854994412,7cyclictest41-21ksoftirqd/321:45:243
23854994412,7cyclictest41-21ksoftirqd/321:45:243
23854994411,8cyclictest41-21ksoftirqd/320:15:143
2385499436,4cyclictest41-21ksoftirqd/322:45:233
23854994333,2cyclictest41-21ksoftirqd/319:40:273
23854994313,4cyclictest41-21ksoftirqd/320:05:143
23854994310,3cyclictest41-21ksoftirqd/323:35:003
23854994310,3cyclictest41-21ksoftirqd/321:30:213
139391430,0ptp4l401ktimersoftd/321:00:213
23853994237,3cyclictest33-21ksoftirqd/221:00:002
23853994236,3cyclictest33-21ksoftirqd/223:20:002
2385499417,5cyclictest41-21ksoftirqd/319:45:223
2385499417,4cyclictest41-21ksoftirqd/320:40:213
23854994115,3cyclictest41-21ksoftirqd/322:25:143
23854994112,8cyclictest41-21ksoftirqd/322:55:183
23854994028,4cyclictest41-21ksoftirqd/322:20:163
23854994013,4cyclictest41-21ksoftirqd/323:55:223
23854994013,4cyclictest41-21ksoftirqd/320:00:153
23854994010,8cyclictest41-21ksoftirqd/300:07:273
23853994027,11cyclictest33-21ksoftirqd/200:35:012
23852994034,4cyclictest19062-21cron21:15:011
2385499397,7cyclictest41-21ksoftirqd/319:10:173
2385499396,4cyclictest41-21ksoftirqd/321:15:153
23854993934,3cyclictest41-21ksoftirqd/322:35:013
23854993910,8cyclictest41-21ksoftirqd/321:10:203
23853993935,2cyclictest33-21ksoftirqd/223:39:592
23853993934,3cyclictest33-21ksoftirqd/221:40:002
23853993934,3cyclictest33-21ksoftirqd/221:20:002
23853993934,2cyclictest33-21ksoftirqd/220:55:002
23852993932,4cyclictest25-21ksoftirqd/100:40:001
23853993833,3cyclictest33-21ksoftirqd/222:10:012
23853993833,3cyclictest33-21ksoftirqd/220:20:002
23853993833,3cyclictest33-21ksoftirqd/200:00:012
23853993827,9cyclictest33-21ksoftirqd/221:00:182
23852993832,4cyclictest25-21ksoftirqd/123:54:451
57898370,7rtkit-daemon0-21swapper/020:33:000
57898370,2rtkit-daemon0-21swapper/120:47:511
2385499373,2cyclictest121rcu_preempt19:20:153
23853993731,4cyclictest33-21ksoftirqd/221:56:522
23852993731,4cyclictest25-21ksoftirqd/123:13:591
23851993732,3cyclictest18411-21cron00:35:000
57898360,2rtkit-daemon0-21swapper/119:36:041
23853993631,3cyclictest33-21ksoftirqd/223:05:192
23853993630,4cyclictest33-21ksoftirqd/222:00:542
23853993630,3cyclictest33-21ksoftirqd/219:45:002
23853993626,9cyclictest33-21ksoftirqd/221:05:212
23852993630,4cyclictest25-21ksoftirqd/121:18:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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