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2026-04-20 - 16:00
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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 Mon Apr 20, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
51842205167,26sleep20-21swapper/207:08:562
138591203169,23phc2sys0-21swapper/307:08:293
49522201172,19sleep00-21swapper/007:05:560
49042201168,22sleep10-21swapper/107:05:281
1570321560,6sleep2556999cyclictest10:45:132
1570321560,6sleep2556999cyclictest10:45:132
1882821380,5sleep3557099cyclictest10:50:193
78302670,1sleep20-21swapper/210:30:012
5570996230,8cyclictest41-21ksoftirqd/311:20:253
5570996230,8cyclictest41-21ksoftirqd/309:55:153
5570995830,8cyclictest41-21ksoftirqd/307:55:163
5570995827,4cyclictest41-21ksoftirqd/311:35:213
5570995728,9cyclictest41-21ksoftirqd/309:35:263
5570995725,4cyclictest41-21ksoftirqd/309:30:173
5570995627,8cyclictest41-21ksoftirqd/307:45:233
5570995627,4cyclictest41-21ksoftirqd/312:00:193
5570995627,3cyclictest41-21ksoftirqd/312:40:013
5570995626,8cyclictest41-21ksoftirqd/312:20:253
5570995626,4cyclictest41-21ksoftirqd/309:25:253
5570995626,3cyclictest41-21ksoftirqd/311:10:253
5570995625,6cyclictest41-21ksoftirqd/307:25:133
5570995624,8cyclictest41-21ksoftirqd/308:50:253
5570995624,8cyclictest41-21ksoftirqd/308:50:253
5570995624,4cyclictest41-21ksoftirqd/308:40:253
5570995618,12cyclictest41-21ksoftirqd/309:20:013
138491560,1ptp4l401ktimersoftd/308:20:133
5570995529,6cyclictest41-21ksoftirqd/308:00:123
5570995525,4cyclictest41-21ksoftirqd/311:05:203
5570995525,4cyclictest41-21ksoftirqd/309:20:253
5570995525,4cyclictest41-21ksoftirqd/308:35:193
5570995524,8cyclictest41-21ksoftirqd/308:05:133
5570995524,4cyclictest41-21ksoftirqd/310:55:183
5570995522,8cyclictest41-21ksoftirqd/309:00:153
5570995521,8cyclictest41-21ksoftirqd/310:15:163
5570995521,8cyclictest41-21ksoftirqd/310:15:163
5570995521,4cyclictest41-21ksoftirqd/308:15:023
276732550,3sleep00-21swapper/010:05:000
5570995427,4cyclictest41-21ksoftirqd/307:35:133
5570995426,4cyclictest41-21ksoftirqd/310:25:003
5570995425,4cyclictest41-21ksoftirqd/310:34:593
5570995425,3cyclictest41-21ksoftirqd/309:40:263
5570995425,3cyclictest41-21ksoftirqd/309:05:183
5570995424,4cyclictest41-21ksoftirqd/311:50:183
5570995424,3cyclictest41-21ksoftirqd/312:05:183
5570995423,8cyclictest41-21ksoftirqd/311:40:193
5570995423,7cyclictest41-21ksoftirqd/307:35:013
5570995420,4cyclictest41-21ksoftirqd/310:10:193
5570995419,4cyclictest41-21ksoftirqd/307:40:203
5570995325,4cyclictest41-21ksoftirqd/308:10:233
5570995324,7cyclictest41-21ksoftirqd/307:15:123
5570995324,7cyclictest41-21ksoftirqd/307:15:123
5570995324,4cyclictest41-21ksoftirqd/312:25:123
5570995324,4cyclictest41-21ksoftirqd/309:10:193
5570995324,4cyclictest41-21ksoftirqd/308:30:123
5570995323,4cyclictest41-21ksoftirqd/311:19:503
5570995323,11cyclictest41-21ksoftirqd/310:05:193
5570995322,7cyclictest41-21ksoftirqd/310:35:163
5570995322,4cyclictest41-21ksoftirqd/312:30:143
5570995319,4cyclictest41-21ksoftirqd/309:50:153
5570995221,4cyclictest41-21ksoftirqd/311:55:203
5570995217,6cyclictest41-21ksoftirqd/307:10:153
5570995121,8cyclictest41-21ksoftirqd/308:55:143
5570995120,4cyclictest41-21ksoftirqd/312:10:153
5570995119,4cyclictest41-21ksoftirqd/312:15:143
5570995119,4cyclictest41-21ksoftirqd/310:00:253
5570995020,3cyclictest41-21ksoftirqd/311:45:253
41952500,2sleep10-21swapper/112:30:261
557099495,3cyclictest41-21ksoftirqd/311:00:113
5570994932,4cyclictest41-21ksoftirqd/307:20:193
5570994919,10cyclictest41-21ksoftirqd/311:30:133
5570994916,4cyclictest41-21ksoftirqd/308:45:273
557099484,7cyclictest41-21ksoftirqd/310:45:233
557099484,7cyclictest41-21ksoftirqd/310:45:233
5570994819,7cyclictest41-21ksoftirqd/311:25:153
5570994717,3cyclictest41-21ksoftirqd/308:25:133
5570994615,10cyclictest41-21ksoftirqd/309:45:153
5570994615,10cyclictest41-21ksoftirqd/309:45:153
5570994613,4cyclictest41-21ksoftirqd/307:50:273
5570994517,3cyclictest41-21ksoftirqd/310:40:153
5570994431,3cyclictest41-21ksoftirqd/310:25:173
5569993935,2cyclictest33-21ksoftirqd/209:20:012
5569993934,3cyclictest33-21ksoftirqd/208:40:002
556899392,34cyclictest223-21systemd-journal10:25:001
556899390,38cyclictest0-21swapper/108:36:121
5567993932,4cyclictest25089-21cron07:50:000
5569993834,2cyclictest33-21ksoftirqd/212:20:012
5569993833,3cyclictest33-21ksoftirqd/207:40:012
5569993826,9cyclictest33-21ksoftirqd/211:58:222
556899380,1cyclictest0-21swapper/110:47:541
556899380,1cyclictest0-21swapper/110:47:541
5567993823,5cyclictest9-21ksoftirqd/007:15:270
5567993823,5cyclictest9-21ksoftirqd/007:15:270
5569993732,3cyclictest33-21ksoftirqd/211:20:002
5569993732,3cyclictest33-21ksoftirqd/211:00:002
5569993732,3cyclictest33-21ksoftirqd/208:10:122
5569993732,3cyclictest33-21ksoftirqd/207:25:132
5569993732,2cyclictest33-21ksoftirqd/207:40:152
5567993732,3cyclictest223-21systemd-journal10:00:000
648523630,2sleep09-21ksoftirqd/009:20:240
5569993631,3cyclictest33-21ksoftirqd/209:00:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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