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2026-03-18 - 19:01
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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 50 highest latencies:
System rackdslot3.osadl.org (updated Wed Mar 18, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73112227168,48sleep10-21swapper/107:06:091
72872208174,22sleep20-21swapper/207:05:502
72782199164,23sleep30-21swapper/307:05:433
75142197164,22sleep00-21swapper/007:08:420
297942570,7sleep0790699cyclictest09:00:250
13732560,3sleep11377-21irqrtprio09:10:171
250592530,4sleep325061-21needreboot11:05:203
182872520,1sleep10-21swapper/109:45:191
139391510,1ptp4l401ktimersoftd/311:17:013
139391510,1ptp4l401ktimersoftd/311:17:013
139391480,38ptp4l0-21swapper/307:10:003
122422460,2sleep00-21swapper/010:40:140
7906994437,4cyclictest10058-21cron07:15:000
139391440,0ptp4l401ktimersoftd/311:55:143
139391430,1ptp4l401ktimersoftd/309:28:083
139391420,0ptp4l401ktimersoftd/312:25:333
139391410,1ptp4l401ktimersoftd/308:34:183
139391410,0ptp4l401ktimersoftd/308:13:483
7908994035,3cyclictest33-21ksoftirqd/209:44:592
7908994026,12cyclictest33-21ksoftirqd/209:40:002
139391400,1ptp4l401ktimersoftd/312:04:413
139391400,1ptp4l401ktimersoftd/308:40:503
139391400,0ptp4l401ktimersoftd/307:59:083
7908993935,2cyclictest33-21ksoftirqd/210:25:002
139391390,0ptp4l401ktimersoftd/308:09:333
7909993832,3cyclictest16040-21egrep08:35:113
7908993833,3cyclictest33-21ksoftirqd/212:25:002
7907993824,12cyclictest25-21ksoftirqd/107:25:111
7909993731,4cyclictest41-21ksoftirqd/310:53:413
7909993731,4cyclictest41-21ksoftirqd/310:30:003
7908993733,2cyclictest33-21ksoftirqd/210:20:002
7908993733,2cyclictest33-21ksoftirqd/210:20:002
7907993732,3cyclictest25-21ksoftirqd/111:32:221
790799370,3cyclictest10427-21taskset11:42:511
7906993729,6cyclictest9-21ksoftirqd/009:30:010
7906993720,14cyclictest9-21ksoftirqd/007:50:000
7906993720,14cyclictest9-21ksoftirqd/007:50:000
7909993631,3cyclictest41-21ksoftirqd/311:30:233
7909993630,4cyclictest41-21ksoftirqd/312:22:393
7908993632,3cyclictest33-21ksoftirqd/211:10:002
7908993631,3cyclictest33-21ksoftirqd/212:40:002
7908993631,3cyclictest33-21ksoftirqd/210:50:202
7908993631,3cyclictest33-21ksoftirqd/207:40:122
7908993631,2cyclictest19586-21cron07:34:592
7908993630,4cyclictest33-21ksoftirqd/211:59:272
7908993630,3cyclictest33-21ksoftirqd/211:05:002
7907993631,3cyclictest25-21ksoftirqd/107:49:181
7907993631,3cyclictest25-21ksoftirqd/107:49:181
7907993630,4cyclictest25-21ksoftirqd/110:51:341
7907993630,4cyclictest25-21ksoftirqd/108:36:351
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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