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2026-04-19 - 08:54
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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 Sun Apr 19, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491236169,23phc2sys0-21swapper/319:06:083
171472204171,22sleep10-21swapper/119:05:021
191782202168,22sleep00-21swapper/019:08:390
183212202169,22sleep20-21swapper/219:05:232
307582610,8sleep21957999cyclictest00:00:202
206532610,4sleep220647-21fschecks_time21:25:152
139391590,1ptp4l401ktimersoftd/320:20:133
142302520,1sleep00-21swapper/000:35:000
139391510,1ptp4l391rcuc/322:29:363
266942460,2sleep00-21swapper/020:30:180
139391450,0ptp4l401ktimersoftd/319:57:283
139391440,0ptp4l401ktimersoftd/323:00:233
139391430,0ptp4l401ktimersoftd/321:37:583
19579994236,3cyclictest11798-21cron22:15:012
139391420,0ptp4l401ktimersoftd/323:15:003
139391420,0ptp4l401ktimersoftd/320:05:303
19578994137,2cyclictest25-21ksoftirqd/100:40:001
57898400,6rtkit-daemon0-21swapper/022:01:020
57898400,2rtkit-daemon0-21swapper/122:30:181
139391400,1ptp4l401ktimersoftd/300:39:563
139391400,0ptp4l401ktimersoftd/322:39:073
19578993934,3cyclictest551-21rs:main1
19577993833,3cyclictest9-21ksoftirqd/020:30:010
19579993732,3cyclictest33-21ksoftirqd/223:10:002
139391370,0ptp4l401ktimersoftd/321:54:203
19580993631,3cyclictest551-21rs:main3
19580993630,4cyclictest41-21ksoftirqd/321:35:003
19579993630,4cyclictest33-21ksoftirqd/220:47:332
19579993630,4cyclictest33-21ksoftirqd/200:15:452
19578993631,3cyclictest25-21ksoftirqd/119:20:111
19578993630,4cyclictest25-21ksoftirqd/122:42:401
19578993629,4cyclictest25-21ksoftirqd/120:10:411
19577993631,3cyclictest31698-21anacron00:01:520
19580993530,3cyclictest41-21ksoftirqd/323:05:113
19580993529,4cyclictest41-21ksoftirqd/322:55:463
19580993529,4cyclictest41-21ksoftirqd/319:21:293
19580993529,4cyclictest41-21ksoftirqd/300:28:023
19579993530,3cyclictest33-21ksoftirqd/222:07:402
19579993530,3cyclictest33-21ksoftirqd/219:45:042
19579993530,3cyclictest33-21ksoftirqd/219:20:522
19579993529,4cyclictest33-21ksoftirqd/220:37:502
19579993529,4cyclictest33-21ksoftirqd/219:34:242
19579993528,4cyclictest33-21ksoftirqd/221:49:592
19578993529,4cyclictest25-21ksoftirqd/123:21:191
19578993529,4cyclictest25-21ksoftirqd/122:21:271
19578993529,4cyclictest25-21ksoftirqd/120:49:521
19578993529,4cyclictest25-21ksoftirqd/120:18:351
19578993529,4cyclictest25-21ksoftirqd/100:07:021
19577993530,3cyclictest9-21ksoftirqd/021:39:590
19577993530,3cyclictest9-21ksoftirqd/021:12:490
19577993530,3cyclictest9-21ksoftirqd/020:42:420
19577993529,4cyclictest9-21ksoftirqd/020:57:180
19577993529,3cyclictest9-21ksoftirqd/022:45:110
19577993529,3cyclictest9-21ksoftirqd/020:15:180
19577993529,3cyclictest9-21ksoftirqd/019:45:110
19580993429,3cyclictest41-21ksoftirqd/320:51:433
19580993428,4cyclictest41-21ksoftirqd/323:11:393
19580993428,4cyclictest41-21ksoftirqd/321:58:303
19580993428,4cyclictest41-21ksoftirqd/321:58:303
19579993429,3cyclictest33-21ksoftirqd/219:50:052
19579993428,4cyclictest33-21ksoftirqd/223:44:082
19579993428,4cyclictest33-21ksoftirqd/221:00:482
19578993429,3cyclictest25-21ksoftirqd/123:50:231
19578993429,3cyclictest25-21ksoftirqd/122:01:131
19578993429,3cyclictest25-21ksoftirqd/120:38:001
19578993429,3cyclictest25-21ksoftirqd/119:54:161
19578993428,4cyclictest25-21ksoftirqd/123:35:351
19578993428,4cyclictest25-21ksoftirqd/122:58:061
19578993428,4cyclictest25-21ksoftirqd/121:44:071
19578993428,4cyclictest25-21ksoftirqd/120:06:241
19578993428,4cyclictest25-21ksoftirqd/119:57:131
19578993428,4cyclictest25-21ksoftirqd/100:04:251
19578993428,3cyclictest25-21ksoftirqd/123:15:101
19578993427,5cyclictest25-21ksoftirqd/122:27:051
19577993429,3cyclictest9-21ksoftirqd/022:39:590
19577993428,3cyclictest9-21ksoftirqd/019:40:110
19580993328,3cyclictest41-21ksoftirqd/321:10:133
19580993327,4cyclictest41-21ksoftirqd/323:42:073
19580993327,4cyclictest41-21ksoftirqd/322:51:593
19580993327,4cyclictest41-21ksoftirqd/322:16:433
19580993327,4cyclictest41-21ksoftirqd/322:08:123
19580993327,4cyclictest41-21ksoftirqd/321:21:483
19580993327,4cyclictest41-21ksoftirqd/321:19:023
19580993327,4cyclictest41-21ksoftirqd/320:46:173
19580993327,4cyclictest41-21ksoftirqd/320:27:323
19580993327,4cyclictest41-21ksoftirqd/319:39:103
19580993327,4cyclictest41-21ksoftirqd/319:31:433
1958099332,3cyclictest121rcu_preempt20:36:293
19579993328,3cyclictest33-21ksoftirqd/219:28:182
19579993328,2cyclictest33-21ksoftirqd/221:45:012
19579993327,4cyclictest33-21ksoftirqd/223:56:312
19579993327,4cyclictest33-21ksoftirqd/222:17:392
19579993327,4cyclictest33-21ksoftirqd/221:31:042
19578993328,3cyclictest25-21ksoftirqd/121:49:081
19578993327,4cyclictest25-21ksoftirqd/122:48:071
19578993327,4cyclictest25-21ksoftirqd/122:18:011
19578993327,4cyclictest25-21ksoftirqd/120:30:391
19578993327,4cyclictest25-21ksoftirqd/119:10:321
19578993327,4cyclictest25-21ksoftirqd/100:33:251
19577993328,3cyclictest9-21ksoftirqd/000:10:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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