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2026-04-15 - 23:02
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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 Wed Apr 15, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6862209176,22sleep20-21swapper/207:05:592
139491206171,23phc2sys0-21swapper/307:08:583
6842201168,22sleep00-21swapper/007:05:570
6802200166,22sleep10-21swapper/107:05:541
1821321590,4sleep1130799cyclictest10:00:001
1394918864,16phc2sys0-21swapper/307:10:003
39952590,2sleep20-21swapper/208:20:242
139391590,1ptp4l401ktimersoftd/308:45:233
1310995810,10cyclictest41-21ksoftirqd/310:30:003
134491570,7getstats131099cyclictest11:33:163
1310995621,2cyclictest41-21ksoftirqd/308:00:263
90552520,2sleep20-21swapper/208:30:272
1310995014,10cyclictest41-21ksoftirqd/309:50:013
131099489,9cyclictest41-21ksoftirqd/311:55:143
131099488,10cyclictest41-21ksoftirqd/312:35:133
1310994813,4cyclictest41-21ksoftirqd/308:00:013
1305994528,5cyclictest9-21ksoftirqd/009:25:200
139391430,0ptp4l401ktimersoftd/312:28:373
131099439,10cyclictest41-21ksoftirqd/308:35:003
1310994332,9cyclictest41-21ksoftirqd/312:30:253
1310994331,10cyclictest41-21ksoftirqd/311:20:263
131099431,3cyclictest121rcu_preempt07:40:183
130599438,2cyclictest9-21ksoftirqd/010:15:200
130599437,8cyclictest9-21ksoftirqd/012:35:130
139391420,0ptp4l401ktimersoftd/309:14:573
131099429,10cyclictest41-21ksoftirqd/310:30:133
1310994237,3cyclictest41-21ksoftirqd/310:00:003
1310994218,4cyclictest41-21ksoftirqd/311:55:013
1310994212,4cyclictest41-21ksoftirqd/312:20:253
131099420,2cyclictest121rcu_preempt10:35:203
1305994227,5cyclictest9-21ksoftirqd/008:20:220
139391410,0ptp4l401ktimersoftd/310:18:013
131099417,4cyclictest41-21ksoftirqd/307:30:173
131099416,7cyclictest41-21ksoftirqd/312:10:243
1310994121,7cyclictest41-21ksoftirqd/309:00:163
131099412,10cyclictest41-21ksoftirqd/307:35:103
1310994111,4cyclictest41-21ksoftirqd/310:11:423
1310994110,4cyclictest41-21ksoftirqd/310:00:203
131099410,3cyclictest121rcu_preempt08:20:133
131099410,3cyclictest121rcu_preempt08:15:143
1309994136,3cyclictest33-21ksoftirqd/211:40:002
1309994120,15cyclictest33-21ksoftirqd/209:35:192
130999410,3cyclictest121rcu_preempt08:10:002
1305994125,5cyclictest9-21ksoftirqd/009:40:140
1305994125,5cyclictest9-21ksoftirqd/009:40:140
1305994123,9cyclictest9-21ksoftirqd/009:05:210
1305994121,12cyclictest9-21ksoftirqd/009:30:090
131099409,4cyclictest41-21ksoftirqd/311:25:253
131099408,7cyclictest41-21ksoftirqd/308:50:203
131099406,9cyclictest41-21ksoftirqd/309:50:183
131099405,8cyclictest41-21ksoftirqd/312:05:183
131099405,10cyclictest41-21ksoftirqd/308:05:193
1309994029,10cyclictest33-21ksoftirqd/209:20:172
1309994028,10cyclictest33-21ksoftirqd/211:15:242
1309994010,3cyclictest33-21ksoftirqd/210:30:262
1307994036,3cyclictest25-21ksoftirqd/109:40:001
1305994035,3cyclictest9-21ksoftirqd/009:59:590
1305994033,4cyclictest9-21ksoftirqd/008:19:590
1305994024,9cyclictest9-21ksoftirqd/010:29:170
139391390,7ptp4l401ktimersoftd/311:43:253
131099395,7cyclictest41-21ksoftirqd/311:15:253
1310993935,2cyclictest41-21ksoftirqd/311:00:003
1310993926,11cyclictest41-21ksoftirqd/307:25:233
1310993924,4cyclictest41-21ksoftirqd/309:05:273
1310993922,6cyclictest41-21ksoftirqd/311:00:223
131099391,4cyclictest41-21ksoftirqd/308:25:153
130999395,7cyclictest33-21ksoftirqd/210:50:222
1309993934,3cyclictest33-21ksoftirqd/208:15:002
1309993929,9cyclictest33-21ksoftirqd/210:00:162
1309993928,9cyclictest33-21ksoftirqd/207:30:122
1309993926,12cyclictest33-21ksoftirqd/212:10:002
130999390,2cyclictest121rcu_preempt08:45:232
1305993933,3cyclictest9-21ksoftirqd/011:15:000
1305993933,3cyclictest9-21ksoftirqd/011:14:590
1305993933,3cyclictest22517-21cron07:55:000
130599393,2cyclictest121rcu_preempt10:10:150
1305993927,3cyclictest9-21ksoftirqd/012:15:000
1305993925,5cyclictest9-21ksoftirqd/010:36:590
130599392,2cyclictest121rcu_preempt09:35:140
131099384,9cyclictest41-21ksoftirqd/307:20:123
131099384,4cyclictest41-21ksoftirqd/311:45:153
1310993833,3cyclictest41-21ksoftirqd/312:00:143
131099380,2cyclictest121rcu_preempt11:15:013
131099380,2cyclictest121rcu_preempt11:15:013
1309993833,3cyclictest33-21ksoftirqd/212:30:002
1309993826,9cyclictest33-21ksoftirqd/209:25:252
1309993825,11cyclictest33-21ksoftirqd/210:29:592
1309993816,15cyclictest33-21ksoftirqd/211:30:172
1307993830,3cyclictest25-21ksoftirqd/109:27:551
130599386,5cyclictest9-21ksoftirqd/008:30:240
130599384,6cyclictest121rcu_preempt11:35:260
130599384,2cyclictest121rcu_preempt09:15:150
1305993833,3cyclictest20525-21sh10:04:590
130599383,2cyclictest121rcu_preempt09:50:150
131099378,9cyclictest41-21ksoftirqd/308:55:203
131099375,2cyclictest121rcu_preempt07:54:363
1310993732,3cyclictest41-21ksoftirqd/310:45:213
1310993732,3cyclictest41-21ksoftirqd/309:15:283
1310993731,3cyclictest41-21ksoftirqd/310:20:223
1310993731,3cyclictest41-21ksoftirqd/309:20:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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