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2026-04-18 - 19:41
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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 Sat Apr 18, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123442212168,33sleep20-21swapper/207:06:092
138591204169,23phc2sys0-21swapper/307:05:513
123942199166,22sleep00-21swapper/007:06:470
124562197164,22sleep10-21swapper/107:07:371
2627521580,5sleep31293799cyclictest08:40:173
115592660,4sleep20-21swapper/212:30:192
138491560,1ptp4l401ktimersoftd/312:00:593
138491560,1ptp4l401ktimersoftd/311:15:173
138491520,8ptp4l401ktimersoftd/309:23:533
138491490,1ptp4l401ktimersoftd/308:26:373
138491470,1ptp4l401ktimersoftd/309:49:003
12936994735,3cyclictest33-21ksoftirqd/211:40:262
12936994630,13cyclictest33-21ksoftirqd/208:55:222
12937994540,3cyclictest32619-21dump-pmu-power07:50:003
138491430,0ptp4l401ktimersoftd/310:50:203
138491430,0ptp4l401ktimersoftd/309:10:403
12935994337,3cyclictest25-21ksoftirqd/111:35:001
138491410,1ptp4l401ktimersoftd/311:29:403
138491410,0ptp4l401ktimersoftd/309:00:193
12936994135,3cyclictest15278-21sort12:39:592
12935994033,4cyclictest12768-21cron12:35:011
12935994033,3cyclictest25-21ksoftirqd/111:25:001
12934994035,3cyclictest9-21ksoftirqd/008:00:000
12937993934,3cyclictest41-21ksoftirqd/308:05:003
12936993932,4cyclictest33-21ksoftirqd/208:29:592
12935993933,4cyclictest12721-21sh10:24:591
138491380,0ptp4l401ktimersoftd/310:25:163
12936993833,3cyclictest33-21ksoftirqd/207:20:262
12936993831,5cyclictest33-21ksoftirqd/208:54:042
12935993833,3cyclictest25-21ksoftirqd/109:00:011
12935993832,3cyclictest25-21ksoftirqd/110:15:001
12934993833,3cyclictest9-21ksoftirqd/011:10:000
12934993832,3cyclictest9-21ksoftirqd/011:35:000
12934993832,3cyclictest9-21ksoftirqd/010:35:000
12934993831,5cyclictest9-21ksoftirqd/010:24:250
50798370,9rtkit-daemon0-21swapper/211:09:192
138491370,0ptp4l401ktimersoftd/308:55:233
12936993732,3cyclictest33-21ksoftirqd/212:21:032
12936993732,3cyclictest33-21ksoftirqd/212:15:002
12936993731,4cyclictest33-21ksoftirqd/210:04:412
12936993731,4cyclictest33-21ksoftirqd/207:59:052
12935993732,3cyclictest25-21ksoftirqd/107:35:191
12935993731,3cyclictest25-21ksoftirqd/108:45:201
12934993732,3cyclictest9-21ksoftirqd/012:15:190
12934993732,3cyclictest9-21ksoftirqd/011:59:590
12934993732,3cyclictest9-21ksoftirqd/011:55:000
12934993731,3cyclictest9-21ksoftirqd/011:25:000
138491360,0ptp4l401ktimersoftd/309:28:563
12937993630,4cyclictest41-21ksoftirqd/308:19:363
12936993631,3cyclictest33-21ksoftirqd/211:25:002
12936993631,3cyclictest33-21ksoftirqd/209:35:002
12936993630,4cyclictest33-21ksoftirqd/211:57:372
12936993630,4cyclictest33-21ksoftirqd/211:25:522
12936993629,4cyclictest33-21ksoftirqd/212:05:442
12936993629,4cyclictest33-21ksoftirqd/208:16:252
12935993632,3cyclictest25-21ksoftirqd/112:20:001
12935993631,3cyclictest32457-21cron10:00:001
12935993631,3cyclictest25-21ksoftirqd/110:59:591
12935993631,3cyclictest25-21ksoftirqd/110:35:201
12935993631,3cyclictest17631-21sh10:35:011
12935993630,4cyclictest25-21ksoftirqd/111:37:021
12935993630,3cyclictest25-21ksoftirqd/110:10:011
12934993633,2cyclictest9-21ksoftirqd/009:24:590
12934993632,3cyclictest9-21ksoftirqd/012:35:000
12934993631,3cyclictest9-21ksoftirqd/008:55:180
12934993631,3cyclictest9-21ksoftirqd/007:40:010
12934993630,4cyclictest9-21ksoftirqd/009:42:130
12934993630,4cyclictest9-21ksoftirqd/009:34:180
12934993630,4cyclictest9-21ksoftirqd/007:19:310
138491350,1ptp4l401ktimersoftd/307:10:013
138491350,0ptp4l401ktimersoftd/310:05:163
12937993529,4cyclictest41-21ksoftirqd/311:01:063
12937993529,4cyclictest41-21ksoftirqd/308:07:113
12937993528,5cyclictest41-21ksoftirqd/310:59:013
12936993530,3cyclictest33-21ksoftirqd/211:05:002
12936993530,3cyclictest33-21ksoftirqd/207:45:002
12936993528,4cyclictest33-21ksoftirqd/211:13:452
12936993528,4cyclictest33-21ksoftirqd/211:13:452
12936993528,4cyclictest33-21ksoftirqd/209:00:182
12936993523,9cyclictest33-21ksoftirqd/212:00:232
12935993530,3cyclictest25-21ksoftirqd/111:17:251
12935993530,3cyclictest25-21ksoftirqd/107:15:191
12935993529,4cyclictest25-21ksoftirqd/112:07:031
12935993529,4cyclictest25-21ksoftirqd/110:25:131
12935993529,4cyclictest25-21ksoftirqd/108:04:361
1293599350,3cyclictest121rcu_preempt09:40:001
12934993531,3cyclictest9-21ksoftirqd/011:35:180
12934993530,3cyclictest9-21ksoftirqd/011:00:180
12934993530,3cyclictest9-21ksoftirqd/009:20:010
12934993529,4cyclictest9-21ksoftirqd/010:50:410
12934993529,4cyclictest9-21ksoftirqd/009:13:160
12934993529,4cyclictest9-21ksoftirqd/008:53:580
12934993529,4cyclictest9-21ksoftirqd/008:40:590
12934993529,4cyclictest9-21ksoftirqd/007:42:370
12934993529,4cyclictest9-21ksoftirqd/007:29:220
12934993528,5cyclictest9-21ksoftirqd/007:49:310
12934993520,3cyclictest9-21ksoftirqd/012:25:000
12937993428,4cyclictest41-21ksoftirqd/312:35:503
12937993428,4cyclictest41-21ksoftirqd/312:08:013
12937993428,4cyclictest41-21ksoftirqd/311:58:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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