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2026-05-28 - 16:35
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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 May 28, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4442242197,34sleep30-21swapper/307:10:003
326662204171,22sleep20-21swapper/207:07:002
325772204170,23sleep00-21swapper/007:05:500
326652201168,22sleep10-21swapper/107:06:591
139391620,1ptp4l0-21swapper/309:40:233
139391590,1ptp4l401ktimersoftd/309:20:333
279362540,5sleep09-21ksoftirqd/012:35:160
77999515,42cyclictest12685-21turbostat12:05:013
139391500,0ptp4l401ktimersoftd/308:44:023
777994337,4cyclictest27107-21cron12:34:591
776994325,15cyclictest9-21ksoftirqd/008:35:120
139391430,0ptp4l401ktimersoftd/308:09:433
77799421,39cyclictest0-21swapper/111:56:031
139391420,35ptp4l0-21swapper/307:10:013
139391420,0ptp4l401ktimersoftd/311:30:183
139391410,0ptp4l401ktimersoftd/311:13:303
139391400,0ptp4l401ktimersoftd/311:45:153
139391400,0ptp4l401ktimersoftd/308:10:373
778993934,3cyclictest12488-21cron09:50:002
139391390,0ptp4l401ktimersoftd/312:20:283
139391390,0ptp4l401ktimersoftd/307:35:103
778993823,3cyclictest33-21ksoftirqd/208:22:502
779993733,2cyclictest16228-21cron11:05:003
779993731,3cyclictest41-21ksoftirqd/309:50:003
778993731,4cyclictest33-21ksoftirqd/210:29:552
776993723,5cyclictest9-21ksoftirqd/011:30:210
779993632,2cyclictest41-21ksoftirqd/310:45:013
779993631,3cyclictest41-21ksoftirqd/311:20:123
779993631,3cyclictest41-21ksoftirqd/310:15:233
778993630,4cyclictest33-21ksoftirqd/212:03:572
778993630,4cyclictest33-21ksoftirqd/209:57:162
777993630,4cyclictest25-21ksoftirqd/109:03:371
777993630,4cyclictest25-21ksoftirqd/107:22:591
139391360,0ptp4l401ktimersoftd/309:37:223
779993531,2cyclictest41-21ksoftirqd/308:29:593
779993530,3cyclictest41-21ksoftirqd/310:20:133
779993529,4cyclictest41-21ksoftirqd/311:55:033
779993529,4cyclictest41-21ksoftirqd/308:00:443
779993529,4cyclictest41-21ksoftirqd/307:16:283
779993529,3cyclictest41-21ksoftirqd/308:50:193
778993530,3cyclictest33-21ksoftirqd/212:17:232
778993529,4cyclictest33-21ksoftirqd/212:06:222
778993528,5cyclictest33-21ksoftirqd/209:21:182
777993529,4cyclictest25-21ksoftirqd/111:28:431
776993529,4cyclictest9-21ksoftirqd/010:11:110
776993528,4cyclictest9-21ksoftirqd/011:00:000
139391350,0ptp4l401ktimersoftd/310:10:203
779993430,2cyclictest41-21ksoftirqd/312:15:173
779993430,2cyclictest41-21ksoftirqd/309:20:003
779993429,3cyclictest41-21ksoftirqd/308:35:193
779993428,4cyclictest41-21ksoftirqd/311:28:293
779993428,4cyclictest41-21ksoftirqd/310:58:523
779993428,4cyclictest41-21ksoftirqd/309:55:303
779993428,4cyclictest41-21ksoftirqd/307:58:323
778993429,3cyclictest33-21ksoftirqd/209:15:132
778993429,3cyclictest33-21ksoftirqd/207:55:132
778993428,4cyclictest33-21ksoftirqd/211:59:452
778993428,4cyclictest33-21ksoftirqd/211:05:042
778993428,4cyclictest33-21ksoftirqd/211:05:042
778993428,4cyclictest33-21ksoftirqd/210:06:082
778993428,4cyclictest33-21ksoftirqd/209:38:282
777993428,4cyclictest25-21ksoftirqd/112:17:321
777993428,4cyclictest25-21ksoftirqd/111:12:341
777993428,4cyclictest25-21ksoftirqd/111:04:241
777993428,4cyclictest25-21ksoftirqd/110:54:521
777993428,4cyclictest25-21ksoftirqd/110:15:051
777993428,4cyclictest25-21ksoftirqd/110:09:471
777993428,4cyclictest25-21ksoftirqd/109:53:151
777993428,4cyclictest25-21ksoftirqd/108:51:121
777993428,4cyclictest25-21ksoftirqd/108:13:541
777993428,4cyclictest25-21ksoftirqd/107:53:201
777993428,4cyclictest25-21ksoftirqd/107:31:021
777993428,4cyclictest25-21ksoftirqd/107:13:371
777993411,4cyclictest27263-21apt-get08:05:121
776993428,4cyclictest9-21ksoftirqd/008:00:530
139391340,0ptp4l401ktimersoftd/307:46:373
779993327,4cyclictest41-21ksoftirqd/311:05:543
779993327,4cyclictest41-21ksoftirqd/311:05:543
779993327,4cyclictest41-21ksoftirqd/310:25:423
779993327,3cyclictest41-21ksoftirqd/310:50:003
778993328,3cyclictest33-21ksoftirqd/209:29:302
778993328,3cyclictest33-21ksoftirqd/208:42:202
778993328,3cyclictest33-21ksoftirqd/207:47:202
778993327,4cyclictest33-21ksoftirqd/210:35:442
778993327,4cyclictest33-21ksoftirqd/210:35:432
778993327,4cyclictest33-21ksoftirqd/210:31:352
778993327,4cyclictest33-21ksoftirqd/210:17:462
777993328,3cyclictest25-21ksoftirqd/108:20:161
777993327,4cyclictest25-21ksoftirqd/111:49:131
777993327,4cyclictest25-21ksoftirqd/110:27:171
777993327,4cyclictest25-21ksoftirqd/109:56:561
777993327,4cyclictest25-21ksoftirqd/108:41:091
776993328,3cyclictest9-21ksoftirqd/007:28:590
776993328,3cyclictest24996-21kworker/3:012:30:110
776993327,4cyclictest9-21ksoftirqd/008:34:510
776993327,4cyclictest9-21ksoftirqd/008:12:130
776993327,4cyclictest9-21ksoftirqd/007:53:190
776993326,4cyclictest12769-21cron07:35:000
139391330,0ptp4l401ktimersoftd/310:30:103
779993228,2cyclictest41-21ksoftirqd/311:50:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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