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2026-08-29 - 15:33
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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 Sat Aug 29, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491212165,36phc2sys0-21swapper/307:08:593
279972204172,21sleep10-21swapper/107:09:391
278162201168,22sleep00-21swapper/007:07:170
278182198165,22sleep20-21swapper/207:07:192
1399021640,8sleep12832699cyclictest11:05:271
2832599670,3cyclictest0-21swapper/009:25:240
25352600,4sleep22536-21irqrtprio08:30:182
139391560,1ptp4l401ktimersoftd/307:39:393
164802530,4sleep30-21swapper/312:20:193
249082500,2sleep20-21swapper/210:25:012
3702490,2sleep00-21swapper/010:40:150
139391450,1ptp4l391rcuc/309:50:173
57898440,1rtkit-daemon0-21swapper/110:12:561
139391430,34ptp4l0-21swapper/307:10:013
139391430,0ptp4l401ktimersoftd/308:47:423
139391430,0ptp4l391rcuc/307:56:183
28327994235,4cyclictest390-21dump-pmu-power07:20:002
28327994235,4cyclictest390-21dump-pmu-power07:19:592
139391420,0ptp4l401ktimersoftd/311:31:093
2832899416,3cyclictest41-21ksoftirqd/308:10:133
2832899415,3cyclictest41-21ksoftirqd/312:30:133
28328994135,3cyclictest41-21ksoftirqd/307:50:013
139391410,1ptp4l401ktimersoftd/309:49:043
139391410,0ptp4l401ktimersoftd/312:13:053
139391410,0ptp4l401ktimersoftd/310:00:293
2832899406,9cyclictest41-21ksoftirqd/310:49:593
28328994035,3cyclictest41-21ksoftirqd/312:20:003
28328994034,4cyclictest10567-21idleruntime-cro12:09:593
28328994031,8cyclictest41-21ksoftirqd/309:25:273
2832599407,20cyclictest28297-21seq11:36:180
28328993935,2cyclictest41-21ksoftirqd/312:00:013
28328993934,2cyclictest41-21ksoftirqd/307:35:003
2832599390,3cyclictest1317-21runrttasks11:59:170
28328993832,4cyclictest41-21ksoftirqd/307:42:103
28328993832,3cyclictest41-21ksoftirqd/310:35:013
28328993827,9cyclictest41-21ksoftirqd/308:00:203
28328993826,9cyclictest41-21ksoftirqd/307:25:273
139391380,1ptp4l401ktimersoftd/310:20:273
139391380,0ptp4l401ktimersoftd/308:22:093
2832899376,3cyclictest41-21ksoftirqd/308:05:153
2832899376,3cyclictest41-21ksoftirqd/308:05:153
2832899376,2cyclictest41-21ksoftirqd/310:25:153
2832899375,4cyclictest41-21ksoftirqd/311:40:183
2832899375,3cyclictest121rcu_preempt11:05:193
28328993733,2cyclictest41-21ksoftirqd/312:05:013
28328993733,2cyclictest41-21ksoftirqd/308:30:003
28328993732,3cyclictest41-21ksoftirqd/309:05:003
28328993731,3cyclictest41-21ksoftirqd/309:55:003
28328993731,3cyclictest41-21ksoftirqd/308:35:013
28326993731,4cyclictest25-21ksoftirqd/112:35:531
28326993731,4cyclictest25-21ksoftirqd/108:20:351
139391370,0ptp4l401ktimersoftd/310:40:143
139391370,0ptp4l401ktimersoftd/309:15:233
2832899363,4cyclictest41-21ksoftirqd/309:30:263
28328993631,3cyclictest41-21ksoftirqd/309:40:183
28328993631,2cyclictest41-21ksoftirqd/310:55:203
28328993630,3cyclictest41-21ksoftirqd/311:15:223
28328993630,3cyclictest41-21ksoftirqd/308:20:003
2832899360,3cyclictest41-21ksoftirqd/311:50:163
28327993630,4cyclictest33-21ksoftirqd/210:19:552
28327993629,4cyclictest33-21ksoftirqd/209:41:582
28326993630,4cyclictest25-21ksoftirqd/109:19:281
28325993630,4cyclictest9-21ksoftirqd/011:12:270
28325993630,4cyclictest9-21ksoftirqd/011:12:270
28325993630,4cyclictest9-21ksoftirqd/011:08:060
2832899354,5cyclictest41-21ksoftirqd/312:40:003
28328993531,3cyclictest41-21ksoftirqd/308:45:003
28328993531,2cyclictest5455-21strings08:35:233
28328993530,3cyclictest41-21ksoftirqd/310:20:003
2832899352,11cyclictest41-21ksoftirqd/308:55:163
28327993529,4cyclictest33-21ksoftirqd/211:45:442
28327993529,4cyclictest33-21ksoftirqd/210:26:482
28327993529,4cyclictest33-21ksoftirqd/208:16:192
28327993511,21cyclictest14024-21/usr/sbin/munin08:55:262
28326993530,3cyclictest25-21ksoftirqd/109:52:541
28326993529,4cyclictest25-21ksoftirqd/112:30:321
28326993529,4cyclictest25-21ksoftirqd/109:33:401
28326993529,4cyclictest25-21ksoftirqd/109:09:451
28326993529,4cyclictest25-21ksoftirqd/108:47:591
28326993528,4cyclictest25-21ksoftirqd/111:25:581
28325993529,4cyclictest9-21ksoftirqd/012:38:490
28325993529,4cyclictest9-21ksoftirqd/011:04:130
28325993529,4cyclictest9-21ksoftirqd/010:34:160
28325993529,4cyclictest9-21ksoftirqd/009:36:400
28325993529,4cyclictest9-21ksoftirqd/008:44:410
28325993527,5cyclictest9-21ksoftirqd/007:20:000
28325993527,5cyclictest9-21ksoftirqd/007:20:000
139391350,0ptp4l401ktimersoftd/307:23:293
2832899346,6cyclictest41-21ksoftirqd/309:05:233
2832899344,3cyclictest41-21ksoftirqd/310:50:013
2832899344,2cyclictest41-21ksoftirqd/311:35:243
28328993430,3cyclictest41-21ksoftirqd/309:40:013
28328993430,2cyclictest41-21ksoftirqd/308:50:203
28328993429,3cyclictest41-21ksoftirqd/311:50:003
28328993429,3cyclictest41-21ksoftirqd/310:05:163
28328993429,3cyclictest41-21ksoftirqd/309:20:193
28328993428,4cyclictest41-21ksoftirqd/311:23:313
2832799343,29cyclictest24905-21kworker/2:010:00:452
28327993428,4cyclictest33-21ksoftirqd/210:59:302
28327993428,4cyclictest33-21ksoftirqd/210:11:252
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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