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2026-04-14 - 19:47
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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 Tue Apr 14, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225342205172,22sleep30-21swapper/307:07:313
225082204172,21sleep20-21swapper/207:07:092
225072200167,22sleep10-21swapper/107:07:091
225062199167,22sleep00-21swapper/007:07:070
95932650,4sleep29588-21cron10:05:012
23028996329,6cyclictest33-21ksoftirqd/211:05:142
264322620,3sleep00-21swapper/011:45:190
83792600,4sleep38372-21turbostat11:10:003
139391600,7ptp4l401ktimersoftd/307:55:433
139391590,8ptp4l401ktimersoftd/311:57:413
23028995822,6cyclictest33-21ksoftirqd/209:55:202
23028995727,5cyclictest33-21ksoftirqd/207:30:192
23028995726,5cyclictest33-21ksoftirqd/212:05:002
23028995626,5cyclictest33-21ksoftirqd/212:30:042
23028995621,8cyclictest33-21ksoftirqd/211:33:412
23028995620,8cyclictest33-21ksoftirqd/210:54:022
23028995620,5cyclictest33-21ksoftirqd/211:45:222
23028995522,7cyclictest33-21ksoftirqd/211:15:252
23028995421,8cyclictest33-21ksoftirqd/208:09:552
23028995419,10cyclictest33-21ksoftirqd/207:45:152
23028995321,6cyclictest33-21ksoftirqd/212:25:272
23028995321,3cyclictest33-21ksoftirqd/210:45:232
23028995320,5cyclictest33-21ksoftirqd/209:40:162
23028995221,10cyclictest33-21ksoftirqd/210:30:002
23028995220,9cyclictest33-21ksoftirqd/212:24:002
23028995220,5cyclictest33-21ksoftirqd/209:20:182
2302899515,7cyclictest33-21ksoftirqd/208:45:262
23028995124,6cyclictest33-21ksoftirqd/210:15:262
23028995121,8cyclictest33-21ksoftirqd/207:23:212
2302899506,7cyclictest33-21ksoftirqd/209:15:222
2302899506,6cyclictest33-21ksoftirqd/209:50:232
2302899505,4cyclictest0-21swapper/209:10:142
2302899504,9cyclictest33-21ksoftirqd/211:25:152
23028995021,8cyclictest33-21ksoftirqd/209:48:182
2302899496,10cyclictest33-21ksoftirqd/208:35:002
2302899495,10cyclictest33-21ksoftirqd/212:15:002
2302899494,8cyclictest33-21ksoftirqd/210:55:152
23028994919,5cyclictest33-21ksoftirqd/208:50:142
23028994917,5cyclictest33-21ksoftirqd/210:40:162
2302899484,7cyclictest33-21ksoftirqd/209:00:252
2302899483,7cyclictest33-21ksoftirqd/208:05:012
2302899483,6cyclictest33-21ksoftirqd/207:15:132
23028994815,7cyclictest33-21ksoftirqd/212:05:272
2302899475,8cyclictest33-21ksoftirqd/209:40:002
2302899475,6cyclictest33-21ksoftirqd/211:20:212
2302899474,5cyclictest33-21ksoftirqd/211:00:242
2302899473,6cyclictest33-21ksoftirqd/207:40:212
2302899473,4cyclictest33-21ksoftirqd/209:25:142
2302899472,5cyclictest33-21ksoftirqd/207:55:252
23028994716,5cyclictest33-21ksoftirqd/212:35:232
2302899466,10cyclictest33-21ksoftirqd/212:15:272
2302899465,9cyclictest33-21ksoftirqd/210:05:212
2302899465,7cyclictest33-21ksoftirqd/208:55:152
2302899465,6cyclictest33-21ksoftirqd/209:05:182
2302899464,5cyclictest33-21ksoftirqd/208:25:242
2302899461,7cyclictest33-21ksoftirqd/211:15:002
2302899461,5cyclictest33-21ksoftirqd/207:35:242
282722450,2sleep10-21swapper/108:25:231
2302899455,4cyclictest33-21ksoftirqd/210:35:142
2302899454,8cyclictest33-21ksoftirqd/209:30:182
2302899454,7cyclictest33-21ksoftirqd/208:20:212
2302899452,5cyclictest33-21ksoftirqd/208:40:152
2302899451,8cyclictest33-21ksoftirqd/207:50:122
23028994518,8cyclictest33-21ksoftirqd/211:45:002
2302899451,5cyclictest33-21ksoftirqd/211:50:232
2302899451,11cyclictest33-21ksoftirqd/208:15:252
2302699449,22cyclictest32274-21seq07:29:460
139391440,0ptp4l401ktimersoftd/309:42:573
2302899436,8cyclictest33-21ksoftirqd/208:35:272
2302899435,9cyclictest33-21ksoftirqd/210:10:132
2302899435,6cyclictest33-21ksoftirqd/210:30:212
2302899434,5cyclictest33-21ksoftirqd/212:00:002
2302899434,4cyclictest33-21ksoftirqd/207:10:242
2302899433,7cyclictest33-21ksoftirqd/208:10:222
139391430,0ptp4l401ktimersoftd/308:13:093
139391430,0ptp4l401ktimersoftd/307:41:373
2302899423,7cyclictest33-21ksoftirqd/211:40:002
23027994237,3cyclictest25-21ksoftirqd/110:20:011
139391420,0ptp4l401ktimersoftd/308:40:063
23029994134,4cyclictest29929-21cron07:25:013
2302899413,3cyclictest33-21ksoftirqd/207:25:172
2302899410,6cyclictest33-21ksoftirqd/210:22:192
23027994035,3cyclictest25-21ksoftirqd/109:05:011
23027993935,2cyclictest25-21ksoftirqd/111:55:001
23027993934,3cyclictest25-21ksoftirqd/110:15:001
134391390,1getstats5627-1kworker/3:2H07:45:593
23027993832,3cyclictest25-21ksoftirqd/107:30:181
2302699384,2cyclictest57898rtkit-daemon08:48:300
23029993732,3cyclictest41-21ksoftirqd/307:55:013
23027993734,2cyclictest25-21ksoftirqd/108:05:011
23027993732,3cyclictest25-21ksoftirqd/112:05:001
23027993732,3cyclictest25-21ksoftirqd/111:40:221
23027993731,4cyclictest25-21ksoftirqd/109:28:161
23027993731,4cyclictest25-21ksoftirqd/108:40:311
23027993730,4cyclictest25-21ksoftirqd/109:58:591
139391370,0ptp4l401ktimersoftd/311:39:093
23029993629,5cyclictest41-21ksoftirqd/308:35:013
23027993632,3cyclictest25-21ksoftirqd/110:30:001
23027993631,3cyclictest25-21ksoftirqd/112:15:201
23027993631,3cyclictest25-21ksoftirqd/111:10:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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