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2026-07-07 - 19:20
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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 Tue Jul 07, 2026 12:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491211169,31phc2sys0-21swapper/307:06:013
273972207174,22sleep00-21swapper/007:05:360
276382204170,23sleep20-21swapper/207:08:052
273932202170,21sleep10-21swapper/107:05:341
3187721390,3sleep22808999cyclictest10:40:132
1790221170,3sleep10-21swapper/107:55:171
139391800,1ptp4l4959-21taskset11:55:443
160582620,3sleep30-21swapper/311:15:003
46482610,6sleep02808799cyclictest11:55:250
9782560,2sleep3983-21hwlatdetect07:20:153
139391560,1ptp4l401ktimersoftd/309:06:413
2809099549,11cyclictest41-21ksoftirqd/308:45:003
28090995120,7cyclictest41-21ksoftirqd/310:20:013
109932500,1sleep310995-21missed_timers09:55:213
28090994919,7cyclictest41-21ksoftirqd/309:25:013
28089994932,15cyclictest16878-21cron07:55:002
65172480,2sleep10-21swapper/109:45:241
28090994816,8cyclictest41-21ksoftirqd/310:50:003
28090994717,2cyclictest41-21ksoftirqd/310:55:193
28090994615,4cyclictest41-21ksoftirqd/309:30:013
57898450,7rtkit-daemon0-21swapper/311:07:033
28090994514,3cyclictest41-21ksoftirqd/311:00:213
28090994416,3cyclictest41-21ksoftirqd/312:10:233
28090994416,3cyclictest41-21ksoftirqd/307:50:123
28090994413,3cyclictest41-21ksoftirqd/309:50:003
2809099438,2cyclictest41-21ksoftirqd/310:20:233
28090994331,9cyclictest41-21ksoftirqd/311:20:243
28090994314,3cyclictest41-21ksoftirqd/307:30:273
28090994313,3cyclictest41-21ksoftirqd/311:40:013
28090994311,4cyclictest41-21ksoftirqd/310:05:003
28090994311,3cyclictest41-21ksoftirqd/310:50:153
139391430,0ptp4l401ktimersoftd/308:00:453
2809099425,7cyclictest41-21ksoftirqd/308:30:003
28090994223,3cyclictest41-21ksoftirqd/309:15:203
28090994212,7cyclictest41-21ksoftirqd/310:40:143
28090994212,4cyclictest41-21ksoftirqd/309:10:263
139391420,0ptp4l401ktimersoftd/310:31:503
139391420,0ptp4l401ktimersoftd/308:20:293
57898410,2rtkit-daemon0-21swapper/208:20:152
28090994114,7cyclictest41-21ksoftirqd/309:40:193
28090994113,7cyclictest41-21ksoftirqd/311:30:143
28090994113,7cyclictest41-21ksoftirqd/308:55:003
28090994112,7cyclictest41-21ksoftirqd/308:45:283
2809099410,9cyclictest41-21ksoftirqd/307:10:183
28087994136,3cyclictest9-21ksoftirqd/010:00:010
2809099409,4cyclictest41-21ksoftirqd/312:15:193
2809099407,4cyclictest41-21ksoftirqd/312:10:003
28090994029,8cyclictest41-21ksoftirqd/312:00:183
28090994013,3cyclictest41-21ksoftirqd/311:15:163
28090994012,4cyclictest41-21ksoftirqd/308:30:213
28090994011,6cyclictest41-21ksoftirqd/308:15:173
139391400,0ptp4l401ktimersoftd/312:26:293
2809099394,8cyclictest41-21ksoftirqd/311:50:023
28090993936,2cyclictest41-21ksoftirqd/309:40:013
28090993928,3cyclictest41-21ksoftirqd/312:35:273
28090993913,7cyclictest41-21ksoftirqd/311:55:013
57898380,6rtkit-daemon0-21swapper/207:33:342
2809099389,4cyclictest41-21ksoftirqd/311:40:013
2809099388,7cyclictest41-21ksoftirqd/311:30:003
2809099384,9cyclictest41-21ksoftirqd/310:10:013
2809099384,4cyclictest41-21ksoftirqd/308:10:003
28090993835,2cyclictest41-21ksoftirqd/308:09:593
28090993833,3cyclictest41-21ksoftirqd/308:00:003
2809099380,8cyclictest41-21ksoftirqd/309:05:003
28090993734,2cyclictest41-21ksoftirqd/310:10:153
28090993732,2cyclictest41-21ksoftirqd/308:35:143
28089993732,3cyclictest30179-21cron09:30:002
28089993731,4cyclictest33-21ksoftirqd/212:26:402
28088993732,3cyclictest25-21ksoftirqd/111:30:191
28088993731,4cyclictest25-21ksoftirqd/110:51:071
28088993731,4cyclictest25-21ksoftirqd/109:23:131
28088993730,5cyclictest25-21ksoftirqd/111:13:101
2809099368,6cyclictest41-21ksoftirqd/307:45:263
2809099368,4cyclictest41-21ksoftirqd/309:30:223
2809099365,3cyclictest41-21ksoftirqd/310:30:013
28090993631,3cyclictest41-21ksoftirqd/307:20:003
28090993630,3cyclictest41-21ksoftirqd/312:20:193
28090993630,3cyclictest41-21ksoftirqd/309:50:283
28089993631,3cyclictest33-21ksoftirqd/207:50:002
28089993630,4cyclictest33-21ksoftirqd/210:52:362
28089993630,3cyclictest33-21ksoftirqd/211:16:582
28088993632,2cyclictest25-21ksoftirqd/111:20:001
28088993631,3cyclictest25-21ksoftirqd/110:40:101
28088993630,4cyclictest25-21ksoftirqd/112:28:081
28088993630,4cyclictest25-21ksoftirqd/110:29:341
28088993630,4cyclictest25-21ksoftirqd/109:54:181
28088993630,4cyclictest25-21ksoftirqd/108:36:331
28088993630,4cyclictest25-21ksoftirqd/108:24:081
28088993630,4cyclictest25-21ksoftirqd/107:47:421
28088993630,4cyclictest25-21ksoftirqd/107:32:251
657123530,2sleep233-21ksoftirqd/210:55:152
2809099353,2cyclictest121rcu_preempt07:40:163
28090993531,2cyclictest41-21ksoftirqd/310:40:013
28090993531,2cyclictest41-21ksoftirqd/307:25:123
28090993530,3cyclictest41-21ksoftirqd/312:30:173
28090993530,3cyclictest41-21ksoftirqd/307:35:283
28089993529,4cyclictest33-21ksoftirqd/211:56:432
28089993529,4cyclictest33-21ksoftirqd/209:00:592
28089993529,3cyclictest33-21ksoftirqd/208:35:122
28089993528,5cyclictest33-21ksoftirqd/208:07:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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