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2026-06-02 - 21:01
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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 100 highest latencies:
System rackdslot4.osadl.org (updated Tue Jun 02, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,22phc2sys0-21swapper/307:06:563
55672201168,22sleep10-21swapper/107:07:551
55712200167,21sleep00-21swapper/007:07:570
53832200167,22sleep20-21swapper/207:05:302
1385918363,11phc2sys0-21swapper/307:10:013
63322670,2sleep00-21swapper/009:20:120
138491500,1ptp4l401ktimersoftd/311:49:273
135191440,2getstats0-21swapper/309:19:593
602899430,42cyclictest0-21swapper/211:56:042
50798430,10rtkit-daemon0-21swapper/210:22:412
6028994135,4cyclictest18393-21cron09:44:592
138491410,1ptp4l401ktimersoftd/310:11:593
138491410,0ptp4l401ktimersoftd/311:07:433
138491410,0ptp4l401ktimersoftd/311:03:143
138491410,0ptp4l401ktimersoftd/310:00:213
138491400,1ptp4l401ktimersoftd/307:58:003
6027993935,3cyclictest25-21ksoftirqd/112:20:001
6027993934,3cyclictest25-21ksoftirqd/109:20:001
138491390,1ptp4l0-21swapper/307:35:143
6027993833,3cyclictest25-21ksoftirqd/108:40:001
6027993832,4cyclictest25-21ksoftirqd/110:24:031
6027993831,5cyclictest25-21ksoftirqd/110:56:091
6026993831,4cyclictest9-21ksoftirqd/012:15:110
135191380,1getstats15859-1kworker/3:0H11:55:003
6029993733,3cyclictest41-21ksoftirqd/311:35:003
6029993732,3cyclictest41-21ksoftirqd/310:52:243
6029993730,4cyclictest41-21ksoftirqd/307:46:083
6028993731,4cyclictest33-21ksoftirqd/208:16:282
6028993731,4cyclictest33-21ksoftirqd/208:16:282
6028993730,4cyclictest33-21ksoftirqd/209:37:102
6028993730,4cyclictest33-21ksoftirqd/209:05:302
6028993730,4cyclictest33-21ksoftirqd/209:05:302
6027993731,4cyclictest25-21ksoftirqd/110:12:581
602799371,34cyclictest10800-21grep09:30:011
6029993632,2cyclictest10809-21cron09:30:013
6029993630,4cyclictest41-21ksoftirqd/312:36:413
6029993630,4cyclictest41-21ksoftirqd/308:44:173
6028993631,3cyclictest33-21ksoftirqd/211:27:392
6028993630,4cyclictest33-21ksoftirqd/210:15:382
6028993630,4cyclictest33-21ksoftirqd/209:33:012
6028993630,4cyclictest33-21ksoftirqd/208:38:012
6028993630,4cyclictest33-21ksoftirqd/207:23:482
6028993629,5cyclictest33-21ksoftirqd/212:26:002
6027993630,4cyclictest25-21ksoftirqd/111:44:201
6027993630,4cyclictest25-21ksoftirqd/111:01:141
6027993630,4cyclictest25-21ksoftirqd/110:27:001
6027993630,4cyclictest25-21ksoftirqd/109:20:101
6027993630,4cyclictest25-21ksoftirqd/107:41:011
6027993630,4cyclictest25-21ksoftirqd/107:35:061
6027993630,3cyclictest25-21ksoftirqd/109:35:011
6026993631,3cyclictest9-21ksoftirqd/011:55:190
6026993630,4cyclictest9-21ksoftirqd/010:26:150
135191360,1getstats15859-1kworker/3:0H12:30:003
6029993530,3cyclictest41-21ksoftirqd/308:45:173
6029993529,4cyclictest41-21ksoftirqd/311:25:513
6029993529,4cyclictest41-21ksoftirqd/309:52:523
6028993530,3cyclictest33-21ksoftirqd/211:40:392
6028993530,3cyclictest33-21ksoftirqd/208:29:232
6028993529,4cyclictest33-21ksoftirqd/210:09:172
6028993528,5cyclictest33-21ksoftirqd/208:41:422
6027993530,3cyclictest25-21ksoftirqd/112:00:181
6027993530,3cyclictest25-21ksoftirqd/111:50:271
6027993530,3cyclictest25-21ksoftirqd/111:10:001
6027993530,3cyclictest25-21ksoftirqd/110:30:181
6027993529,4cyclictest25-21ksoftirqd/110:50:191
6027993529,4cyclictest25-21ksoftirqd/110:16:451
6027993529,4cyclictest25-21ksoftirqd/109:37:351
6027993528,5cyclictest25-21ksoftirqd/111:35:001
6027993528,4cyclictest25-21ksoftirqd/108:52:491
6026993529,4cyclictest9-21ksoftirqd/011:41:010
6026993529,4cyclictest9-21ksoftirqd/011:30:300
6026993529,4cyclictest9-21ksoftirqd/010:38:100
6026993529,4cyclictest9-21ksoftirqd/008:13:170
6026993529,4cyclictest9-21ksoftirqd/007:30:320
6026993528,4cyclictest9-21ksoftirqd/011:23:450
6026993528,4cyclictest9-21ksoftirqd/007:15:000
138491350,1ptp4l401ktimersoftd/308:08:543
6029993429,3cyclictest41-21ksoftirqd/310:48:273
6029993429,3cyclictest41-21ksoftirqd/308:50:123
6029993429,3cyclictest41-21ksoftirqd/307:43:593
6029993428,4cyclictest41-21ksoftirqd/312:32:193
6029993428,4cyclictest41-21ksoftirqd/312:17:303
6029993428,4cyclictest41-21ksoftirqd/312:02:023
6029993428,4cyclictest41-21ksoftirqd/311:37:003
6028993429,3cyclictest33-21ksoftirqd/211:46:042
6028993429,3cyclictest33-21ksoftirqd/208:23:272
6028993428,4cyclictest33-21ksoftirqd/212:06:062
6028993428,4cyclictest33-21ksoftirqd/211:03:252
6028993428,4cyclictest33-21ksoftirqd/209:55:372
6028993428,4cyclictest33-21ksoftirqd/209:23:432
6028993428,4cyclictest33-21ksoftirqd/207:14:422
6028993416,17cyclictest0-21swapper/208:59:452
6028993412,3cyclictest5511-21seq09:15:422
6027993429,3cyclictest25-21ksoftirqd/109:10:001
6027993429,3cyclictest25-21ksoftirqd/109:10:001
6027993429,3cyclictest25-21ksoftirqd/107:15:171
6027993428,4cyclictest25-21ksoftirqd/111:38:101
6027993428,4cyclictest25-21ksoftirqd/107:34:461
6026993429,3cyclictest9-21ksoftirqd/010:50:130
6026993428,4cyclictest9-21ksoftirqd/010:58:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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