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2026-08-27 - 09:48
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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 Thu Aug 27, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491231170,49phc2sys0-21swapper/319:09:133
218062229169,49sleep20-21swapper/219:09:002
217262226198,18sleep10-21swapper/119:07:591
215982201168,22sleep00-21swapper/019:06:160
3246321490,6sleep22232099cyclictest22:50:242
648121370,5sleep02231899cyclictest00:10:260
37662550,1sleep10-21swapper/119:35:271
139391510,1ptp4l401ktimersoftd/323:50:473
139391510,1ptp4l401ktimersoftd/300:23:183
139391510,1ptp4l401ktimersoftd/300:23:183
21582500,2sleep10-21swapper/100:05:011
139391440,0ptp4l401ktimersoftd/322:15:133
22318994338,3cyclictest9189-21latency_hist22:05:000
139391430,1ptp4l401ktimersoftd/322:45:343
139391430,0ptp4l401ktimersoftd/323:44:383
139391430,0ptp4l401ktimersoftd/319:43:483
22318994237,3cyclictest9-21ksoftirqd/020:00:000
139391420,0ptp4l401ktimersoftd/323:15:253
139391420,0ptp4l401ktimersoftd/323:15:253
22318994135,4cyclictest32019-21cron21:45:000
22319994033,4cyclictest549-21in:imuxsock00:14:591
139391400,1ptp4l401ktimersoftd/320:20:583
22318993933,3cyclictest15132-21cron21:10:010
139391390,0ptp4l401ktimersoftd/323:25:253
22321993832,3cyclictest41-21ksoftirqd/323:00:003
22319993833,2cyclictest26917-21sh19:20:001
22319993831,5cyclictest25-21ksoftirqd/122:16:531
2231999380,2cyclictest0-21swapper/123:40:431
22321993732,3cyclictest7809-21turbostat.cron20:55:003
22319993731,4cyclictest25-21ksoftirqd/100:24:231
22319993731,4cyclictest25-21ksoftirqd/100:24:231
22321993629,5cyclictest41-21ksoftirqd/300:31:183
22321993628,5cyclictest41-21ksoftirqd/322:00:003
22320993630,4cyclictest33-21ksoftirqd/220:22:582
22320993630,4cyclictest33-21ksoftirqd/219:35:002
22319993631,3cyclictest25-21ksoftirqd/120:55:001
22319993630,4cyclictest25-21ksoftirqd/123:12:211
22319993630,4cyclictest25-21ksoftirqd/119:58:211
22321993530,3cyclictest41-21ksoftirqd/320:15:103
22321993530,3cyclictest41-21ksoftirqd/320:15:003
22321993529,4cyclictest41-21ksoftirqd/300:15:543
22321993529,3cyclictest41-21ksoftirqd/323:30:233
22319993530,3cyclictest25-21ksoftirqd/123:25:121
22319993530,3cyclictest25-21ksoftirqd/119:27:071
22319993529,4cyclictest25-21ksoftirqd/123:09:211
22319993529,4cyclictest25-21ksoftirqd/122:12:521
22319993529,4cyclictest25-21ksoftirqd/121:50:541
22319993529,4cyclictest25-21ksoftirqd/121:38:021
22319993529,4cyclictest25-21ksoftirqd/121:33:001
22319993529,4cyclictest25-21ksoftirqd/121:19:281
22319993529,4cyclictest25-21ksoftirqd/120:01:381
22319993528,4cyclictest25-21ksoftirqd/123:00:061
22318993528,4cyclictest9-21ksoftirqd/022:20:170
22318993528,4cyclictest9-21ksoftirqd/019:45:410
57898340,5rtkit-daemon0-21swapper/020:13:260
57898340,2rtkit-daemon577-21rtkit-daemon00:34:500
22321993429,3cyclictest41-21ksoftirqd/323:00:183
22321993429,3cyclictest41-21ksoftirqd/300:35:193
22321993428,4cyclictest41-21ksoftirqd/322:24:053
22321993428,4cyclictest41-21ksoftirqd/322:12:333
22321993428,4cyclictest41-21ksoftirqd/322:09:133
22321993428,3cyclictest41-21ksoftirqd/319:15:173
22320993429,3cyclictest33-21ksoftirqd/221:59:462
22320993429,3cyclictest33-21ksoftirqd/221:28:002
22320993428,4cyclictest33-21ksoftirqd/223:15:432
22320993428,4cyclictest33-21ksoftirqd/223:15:432
22320993428,4cyclictest33-21ksoftirqd/222:42:502
22320993428,4cyclictest33-21ksoftirqd/221:49:182
22320993428,4cyclictest33-21ksoftirqd/219:45:072
22320993427,4cyclictest33-21ksoftirqd/221:30:122
22319993429,3cyclictest25-21ksoftirqd/121:27:471
22319993429,3cyclictest25-21ksoftirqd/120:45:391
22319993429,3cyclictest25-21ksoftirqd/120:10:001
22319993428,4cyclictest25-21ksoftirqd/122:54:481
22319993428,4cyclictest25-21ksoftirqd/122:23:511
22319993428,4cyclictest25-21ksoftirqd/121:46:161
22319993428,4cyclictest25-21ksoftirqd/121:14:511
22319993428,4cyclictest25-21ksoftirqd/120:44:461
22319993428,4cyclictest25-21ksoftirqd/120:38:361
22319993427,4cyclictest25-21ksoftirqd/123:47:591
22318993428,4cyclictest9-21ksoftirqd/023:06:030
22318993427,5cyclictest9-21ksoftirqd/021:22:440
22321993329,3cyclictest41-21ksoftirqd/319:40:003
22321993328,3cyclictest41-21ksoftirqd/323:21:343
22321993328,3cyclictest41-21ksoftirqd/321:18:583
22321993328,3cyclictest41-21ksoftirqd/319:50:443
22321993327,4cyclictest41-21ksoftirqd/323:38:023
22321993327,4cyclictest41-21ksoftirqd/322:33:243
22321993327,4cyclictest41-21ksoftirqd/319:22:123
22320993328,3cyclictest33-21ksoftirqd/223:03:552
22320993328,3cyclictest33-21ksoftirqd/221:05:212
22320993328,3cyclictest33-21ksoftirqd/220:41:362
22320993328,3cyclictest33-21ksoftirqd/219:29:162
22320993327,4cyclictest33-21ksoftirqd/223:39:102
22320993327,4cyclictest33-21ksoftirqd/222:21:032
22320993327,4cyclictest33-21ksoftirqd/222:10:322
22320993327,4cyclictest33-21ksoftirqd/220:33:242
22320993327,3cyclictest6653-21cron19:44:592
22319993328,3cyclictest25-21ksoftirqd/123:57:351
22319993328,3cyclictest25-21ksoftirqd/120:25:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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