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2026-03-30 - 23:37
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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 rackdslot1.osadl.org (updated Mon Mar 30, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491910,3ptp4l0-21swapper/311:34:463
280322850,4sleep30-21swapper/311:55:173
103192820,5sleep233-21ksoftirqd/212:25:252
2402199792,32cyclictest0-21swapper/212:15:142
134491790,27ptp4l3387-21chrt09:53:441
2402199772,33cyclictest0-21swapper/208:20:222
275812740,4sleep09-21ksoftirqd/010:45:170
24021997312,59cyclictest0-21swapper/212:05:282
2402199672,36cyclictest0-21swapper/207:50:292
2402199672,35cyclictest0-21swapper/209:30:162
2402199672,35cyclictest0-21swapper/208:25:172
24021996529,7cyclictest33-21ksoftirqd/210:04:142
2402199652,35cyclictest0-21swapper/207:15:152
2402199652,34cyclictest0-21swapper/212:24:202
2402199652,34cyclictest0-21swapper/211:50:172
2402199652,34cyclictest0-21swapper/208:30:242
2402199652,33cyclictest0-21swapper/209:05:192
24021996429,10cyclictest33-21ksoftirqd/208:40:132
24021996427,7cyclictest33-21ksoftirqd/209:03:022
24021996427,7cyclictest33-21ksoftirqd/209:03:022
24021996424,11cyclictest33-21ksoftirqd/207:56:182
2402199642,34cyclictest0-21swapper/211:35:132
18532640,5sleep00-21swapper/011:00:150
134491640,4ptp4l0-21swapper/007:10:210
134491640,19ptp4l0-21swapper/307:30:273
302612630,3sleep20-21swapper/207:20:292
24021996328,6cyclictest33-21ksoftirqd/211:30:132
24021996324,4cyclictest33-21ksoftirqd/211:30:002
2402199632,33cyclictest0-21swapper/208:55:202
2402199632,33cyclictest0-21swapper/208:55:202
2402199632,32cyclictest0-21swapper/209:25:232
2402199632,32cyclictest0-21swapper/207:35:192
2402199632,32cyclictest0-21swapper/207:35:192
181542630,3sleep018160-21dump-pmu-power11:35:000
24021996226,8cyclictest33-21ksoftirqd/211:03:532
24021996226,7cyclictest33-21ksoftirqd/212:39:482
24021996226,4cyclictest33-21ksoftirqd/211:10:012
24021996223,8cyclictest33-21ksoftirqd/209:40:332
2402199622,33cyclictest0-21swapper/208:04:582
2402199622,32cyclictest0-21swapper/208:09:222
24021996121,8cyclictest33-21ksoftirqd/211:43:312
24021996029,5cyclictest33-21ksoftirqd/210:20:172
24021996025,8cyclictest33-21ksoftirqd/208:49:502
24021996021,11cyclictest33-21ksoftirqd/207:42:462
134491600,4ptp4l17401-21diskstats08:05:150
24021995930,4cyclictest33-21ksoftirqd/207:10:222
24021995927,7cyclictest33-21ksoftirqd/210:45:162
24021995826,10cyclictest33-21ksoftirqd/210:10:272
24021995821,8cyclictest33-21ksoftirqd/209:35:312
134691580,7getstats0-21swapper/008:55:160
134691580,7getstats0-21swapper/008:55:160
134491580,3ptp4l31635-21apt-get10:55:132
254522570,2sleep225456-21sed10:40:182
24021995732,6cyclictest33-21ksoftirqd/210:00:002
24021995721,8cyclictest33-21ksoftirqd/209:18:222
24021995721,5cyclictest33-21ksoftirqd/208:15:242
24021995720,7cyclictest33-21ksoftirqd/209:45:502
134491570,3ptp4l0-21swapper/112:04:211
134491570,3ptp4l0-21swapper/108:45:271
134491570,3ptp4l0-21swapper/007:30:260
24021995620,5cyclictest33-21ksoftirqd/212:30:142
24021995619,5cyclictest33-21ksoftirqd/207:30:132
134491560,4ptp4l0-21swapper/310:45:193
134491560,21ptp4l25-21ksoftirqd/108:55:181
134491560,21ptp4l25-21ksoftirqd/108:55:181
24021995526,9cyclictest33-21ksoftirqd/209:50:252
2402199552,32cyclictest0-21swapper/211:55:202
134491550,4ptp4l0-21swapper/109:14:001
134491550,4ptp4l0-21swapper/109:04:401
134491550,4ptp4l0-21swapper/109:04:401
134491550,4ptp4l0-21swapper/007:25:230
134491550,3ptp4l0-21swapper/108:35:241
2402199542,8cyclictest33-21ksoftirqd/210:25:252
134491540,3ptp4l0-21swapper/309:07:133
134491540,3ptp4l0-21swapper/111:06:211
134491540,14ptp4l0-21swapper/107:40:431
24021995330,7cyclictest33-21ksoftirqd/209:15:012
2402199532,25cyclictest0-21swapper/211:46:402
24021995320,7cyclictest33-21ksoftirqd/210:09:002
134491530,4ptp4l0-21swapper/011:26:560
134491530,3ptp4l0-21swapper/109:25:471
134491530,11ptp4l0-21swapper/007:05:200
2402199522,8cyclictest33-21ksoftirqd/211:20:272
24021995228,7cyclictest33-21ksoftirqd/208:35:172
2402199522,7cyclictest0-21swapper/212:10:262
2402199522,7cyclictest0-21swapper/212:10:262
2402199521,9cyclictest121rcu_preempt08:50:202
134491520,4ptp4l0-21swapper/312:26:593
134491520,4ptp4l0-21swapper/311:10:153
134491520,4ptp4l0-21swapper/008:43:200
2402199515,3cyclictest33-21ksoftirqd/212:00:172
2402199513,6cyclictest33-21ksoftirqd/209:20:192
24021995121,5cyclictest33-21ksoftirqd/210:30:122
24021995119,8cyclictest33-21ksoftirqd/211:10:172
2402199510,7cyclictest33-21ksoftirqd/207:25:202
134491510,4ptp4l0-21swapper/110:24:281
2402199503,3cyclictest121rcu_preempt07:45:042
24021995014,5cyclictest33-21ksoftirqd/210:15:212
134491500,4ptp4l0-21swapper/110:52:361
134491500,4ptp4l0-21swapper/110:16:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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