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2026-09-10 - 17:45
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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 Thu Sep 10, 2026 12:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
95682205171,22sleep30-21swapper/307:07:543
95962204172,21sleep10-21swapper/107:08:171
75182202169,22sleep20-21swapper/207:05:072
94352200167,22sleep00-21swapper/007:06:100
2943521730,6sleep01003199cyclictest11:05:000
890821550,4sleep01003199cyclictest10:20:230
138491700,1ptp4l401ktimersoftd/312:29:063
138491660,1ptp4l401ktimersoftd/309:54:493
138491640,1ptp4l401ktimersoftd/309:06:593
297972580,4sleep00-21swapper/010:00:010
138491540,0ptp4l401ktimersoftd/307:13:043
323312510,2sleep20-21swapper/211:10:152
138491510,1ptp4l391rcuc/308:49:003
10033994814,9cyclictest33-21ksoftirqd/207:30:122
1003399467,7cyclictest33-21ksoftirqd/208:05:002
10031994413,5cyclictest9-21ksoftirqd/012:00:150
94682420,1sleep30-21swapper/309:20:003
10033994239,2cyclictest33-21ksoftirqd/211:00:002
1003199422,37cyclictest17140-21cron11:45:000
138491410,1ptp4l401ktimersoftd/312:08:053
1003399419,4cyclictest33-21ksoftirqd/210:20:002
10033994137,2cyclictest33-21ksoftirqd/211:40:012
10033994111,6cyclictest33-21ksoftirqd/211:45:002
1003199419,3cyclictest9-21ksoftirqd/009:40:000
1003199418,7cyclictest9-21ksoftirqd/011:20:000
1003199412,9cyclictest9-21ksoftirqd/008:45:000
1003499402,37cyclictest13002-21kworker/3:209:37:333
1003499402,36cyclictest6719-21kworker/3:011:31:033
10033994010,4cyclictest33-21ksoftirqd/212:35:142
10034993917,20cyclictest6719-21kworker/3:012:17:333
10033993935,2cyclictest33-21ksoftirqd/210:05:002
10033993934,3cyclictest33-21ksoftirqd/210:35:002
1003399393,3cyclictest33-21ksoftirqd/212:20:172
10033993933,4cyclictest33-21ksoftirqd/212:28:102
10033993929,3cyclictest33-21ksoftirqd/209:07:552
1003199394,2cyclictest121rcu_preempt09:45:160
1003199393,3cyclictest121rcu_preempt11:25:160
10031993927,4cyclictest9-21ksoftirqd/009:33:320
1003199391,4cyclictest9-21ksoftirqd/007:20:160
10031993911,3cyclictest9-21ksoftirqd/007:35:000
138491380,1ptp4l401ktimersoftd/311:27:053
138491380,1ptp4l13002-21kworker/3:210:02:033
10033993834,3cyclictest33-21ksoftirqd/209:25:002
10033993833,3cyclictest33-21ksoftirqd/209:15:132
10033993833,3cyclictest33-21ksoftirqd/209:10:212
10033993833,3cyclictest33-21ksoftirqd/209:10:212
10033993829,8cyclictest33-21ksoftirqd/211:05:182
10033993826,4cyclictest33-21ksoftirqd/208:05:142
10032993832,4cyclictest25-21ksoftirqd/108:00:591
10032993831,4cyclictest25-21ksoftirqd/107:45:261
10032993810,26cyclictest0-21swapper/110:45:231
1003199386,9cyclictest9-21ksoftirqd/012:25:000
1003199384,2cyclictest121rcu_preempt09:10:290
1003199384,2cyclictest121rcu_preempt09:10:290
10031993833,2cyclictest9-21ksoftirqd/010:35:000
10031993833,2cyclictest9-21ksoftirqd/009:40:150
10031993832,3cyclictest9-21ksoftirqd/009:05:000
1003199382,2cyclictest121rcu_preempt09:15:130
10031993813,6cyclictest9-21ksoftirqd/008:00:250
10034993731,4cyclictest41-21ksoftirqd/310:32:093
1003499372,34cyclictest6719-21kworker/3:011:35:333
1003399376,4cyclictest33-21ksoftirqd/208:55:232
1003399373,3cyclictest121rcu_preempt11:20:142
10033993732,3cyclictest33-21ksoftirqd/208:20:162
10033993732,2cyclictest33-21ksoftirqd/211:25:122
10033993731,3cyclictest33-21ksoftirqd/208:10:132
10033993731,3cyclictest33-21ksoftirqd/207:25:012
10033993730,5cyclictest33-21ksoftirqd/210:48:572
1003399371,5cyclictest33-21ksoftirqd/210:20:162
1003399371,4cyclictest33-21ksoftirqd/208:50:242
10033993711,7cyclictest33-21ksoftirqd/210:40:152
1003399370,3cyclictest121rcu_preempt10:10:212
1003199376,7cyclictest9-21ksoftirqd/007:25:220
1003199374,6cyclictest121rcu_preempt10:55:230
1003199374,6cyclictest121rcu_preempt08:05:220
1003199374,3cyclictest9-21ksoftirqd/011:45:230
10031993733,2cyclictest9-21ksoftirqd/010:20:000
1003199373,2cyclictest121rcu_preempt07:10:230
10031993732,3cyclictest9-21ksoftirqd/012:35:230
10031993731,4cyclictest9-21ksoftirqd/011:22:250
10031993731,4cyclictest9-21ksoftirqd/011:11:540
10031993731,4cyclictest9-21ksoftirqd/008:18:310
1003199372,3cyclictest121rcu_preempt10:00:260
1003199371,6cyclictest9-21ksoftirqd/007:40:210
1003199371,4cyclictest9-21ksoftirqd/008:35:170
10034993630,4cyclictest41-21ksoftirqd/312:39:153
10034993630,4cyclictest41-21ksoftirqd/311:41:143
10034993630,4cyclictest41-21ksoftirqd/310:52:513
1003399369,7cyclictest33-21ksoftirqd/212:15:022
1003399369,6cyclictest33-21ksoftirqd/212:10:162
1003399366,3cyclictest33-21ksoftirqd/207:35:112
1003399364,6cyclictest33-21ksoftirqd/211:15:222
1003399364,4cyclictest33-21ksoftirqd/207:10:142
10033993632,3cyclictest33-21ksoftirqd/209:05:002
10033993632,2cyclictest33-21ksoftirqd/212:30:222
10033993632,2cyclictest33-21ksoftirqd/212:00:002
10033993631,2cyclictest33-21ksoftirqd/207:15:132
10033993630,4cyclictest33-21ksoftirqd/209:28:462
10033993630,3cyclictest33-21ksoftirqd/207:45:252
1003399362,5cyclictest33-21ksoftirqd/209:50:202
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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