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2026-01-07 - 18:00
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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 Wed Jan 07, 2026 12:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308152205171,22sleep20-21swapper/207:07:492
308452201168,22sleep00-21swapper/007:08:110
306332201168,22sleep30-21swapper/307:05:293
306962197164,22sleep10-21swapper/107:06:151
139391710,1ptp4l401ktimersoftd/309:49:563
229992660,4sleep20-21swapper/209:05:222
125782640,2sleep10-21swapper/107:35:271
306592630,2sleep30-21swapper/309:20:233
75422610,3sleep30-21swapper/307:25:223
139391610,1ptp4l401ktimersoftd/308:43:143
139391550,1ptp4l401ktimersoftd/310:24:483
135792520,2sleep33141999cyclictest07:40:143
31418994811,4cyclictest33-21ksoftirqd/210:40:002
31418994612,10cyclictest33-21ksoftirqd/212:30:002
31418994510,9cyclictest33-21ksoftirqd/208:15:012
3141899448,6cyclictest33-21ksoftirqd/208:10:002
31418994413,4cyclictest33-21ksoftirqd/208:30:162
139391430,0ptp4l401ktimersoftd/312:13:263
31418994223,16cyclictest33-21ksoftirqd/207:40:012
31418994213,4cyclictest33-21ksoftirqd/209:10:232
139391420,0ptp4l401ktimersoftd/311:00:223
31419994129,10cyclictest41-21ksoftirqd/309:00:003
3141899419,4cyclictest33-21ksoftirqd/210:50:152
31418994136,3cyclictest33-21ksoftirqd/212:35:012
31417994135,3cyclictest29061-21cron11:35:001
31419994034,4cyclictest7185-21cron10:49:593
3141899406,4cyclictest33-21ksoftirqd/209:45:122
31418994034,3cyclictest33-21ksoftirqd/212:15:132
3141899403,2cyclictest121rcu_preempt09:00:322
134391400,2getstats3141999cyclictest09:19:473
3141899399,7cyclictest33-21ksoftirqd/208:45:012
3141899394,5cyclictest33-21ksoftirqd/207:50:142
31418993931,2cyclictest121rcu_preempt10:45:232
3141899391,8cyclictest33-21ksoftirqd/208:25:222
31418993910,3cyclictest33-21ksoftirqd/209:55:232
134391390,2getstats0-21swapper/309:14:473
3141899388,3cyclictest33-21ksoftirqd/207:20:002
3141899385,3cyclictest121rcu_preempt11:10:192
31418993832,3cyclictest33-21ksoftirqd/210:55:252
31418993832,3cyclictest33-21ksoftirqd/209:15:152
31418993831,4cyclictest6080-21turbostat07:25:002
3141899381,4cyclictest33-21ksoftirqd/211:35:182
31416993832,3cyclictest9-21ksoftirqd/008:00:000
31418993733,3cyclictest33-21ksoftirqd/211:30:002
31418993733,2cyclictest33-21ksoftirqd/210:05:162
31418993732,3cyclictest33-21ksoftirqd/210:44:092
31418993732,3cyclictest33-21ksoftirqd/207:35:002
31418993732,2cyclictest33-21ksoftirqd/212:05:012
31418993731,3cyclictest33-21ksoftirqd/211:20:182
3141899372,4cyclictest33-21ksoftirqd/209:35:162
31417993732,3cyclictest25-21ksoftirqd/109:30:001
31417993731,4cyclictest25-21ksoftirqd/109:34:051
57898360,2rtkit-daemon0-21swapper/108:36:351
31419993630,4cyclictest551-21rs:main3
31418993632,3cyclictest33-21ksoftirqd/210:30:002
31418993631,3cyclictest33-21ksoftirqd/212:05:242
31418993631,3cyclictest33-21ksoftirqd/211:05:132
31418993631,3cyclictest33-21ksoftirqd/208:55:222
31418993631,2cyclictest33-21ksoftirqd/208:15:152
31418993630,4cyclictest33-21ksoftirqd/211:19:482
31418993630,3cyclictest33-21ksoftirqd/212:25:012
31418993630,3cyclictest33-21ksoftirqd/211:55:512
31418993630,3cyclictest33-21ksoftirqd/211:50:002
31418993630,3cyclictest33-21ksoftirqd/211:40:152
31418993630,3cyclictest33-21ksoftirqd/210:05:002
3141899362,4cyclictest33-21ksoftirqd/212:35:162
31418993623,11cyclictest33-21ksoftirqd/211:50:272
31417993631,3cyclictest25-21ksoftirqd/109:15:011
31417993630,4cyclictest25-21ksoftirqd/112:29:351
31417993630,4cyclictest25-21ksoftirqd/109:24:471
31417993630,4cyclictest25-21ksoftirqd/107:10:241
31417993629,5cyclictest25-21ksoftirqd/110:57:571
31417993629,4cyclictest25-21ksoftirqd/111:46:431
31419993531,2cyclictest41-21ksoftirqd/309:40:013
31419993530,3cyclictest41-21ksoftirqd/311:20:123
31419993529,4cyclictest41-21ksoftirqd/307:37:583
31419993529,4cyclictest41-21ksoftirqd/307:17:093
31419993528,5cyclictest41-21ksoftirqd/312:29:593
3141899354,3cyclictest121rcu_preempt07:56:572
31418993531,2cyclictest33-21ksoftirqd/212:10:202
31418993531,2cyclictest33-21ksoftirqd/207:45:212
31418993530,3cyclictest33-21ksoftirqd/209:50:122
31418993530,3cyclictest33-21ksoftirqd/209:25:002
31418993530,3cyclictest33-21ksoftirqd/208:00:212
3141899352,5cyclictest33-21ksoftirqd/210:30:172
31418993521,5cyclictest33-21ksoftirqd/208:35:232
31417993531,2cyclictest25-21ksoftirqd/111:15:001
31417993530,3cyclictest25-21ksoftirqd/110:25:011
31417993530,3cyclictest25-21ksoftirqd/107:30:001
31417993529,4cyclictest25-21ksoftirqd/109:37:541
31417993529,4cyclictest25-21ksoftirqd/107:57:251
31417993529,3cyclictest25-21ksoftirqd/112:20:181
31416993530,3cyclictest9-21ksoftirqd/011:10:000
31416993529,4cyclictest9-21ksoftirqd/010:39:550
31416993528,4cyclictest22957-21sh12:30:000
139391350,0ptp4l401ktimersoftd/307:30:223
57898340,2rtkit-daemon0-21swapper/107:44:321
57898340,2rtkit-daemon0-21swapper/010:15:230
31419993431,2cyclictest41-21ksoftirqd/310:15:183
31419993429,3cyclictest41-21ksoftirqd/310:50:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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