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2026-09-20 - 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 rackdslot4.osadl.org (updated Sun Sep 20, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249072226163,21sleep10-21swapper/107:07:481
138591204170,23phc2sys0-21swapper/307:05:383
247742203170,22sleep20-21swapper/207:06:042
249782200167,22sleep00-21swapper/007:08:430
2050321370,4sleep3391rcuc/310:15:123
50798900,69rtkit-daemon0-21swapper/207:10:012
1385918162,11phc2sys0-21swapper/307:10:013
25379996829,4cyclictest41-21ksoftirqd/308:10:283
25379996730,9cyclictest41-21ksoftirqd/308:00:183
25378996736,4cyclictest33-21ksoftirqd/211:15:002
25379996429,8cyclictest41-21ksoftirqd/308:00:013
25379996429,8cyclictest41-21ksoftirqd/308:00:003
25379996428,4cyclictest41-21ksoftirqd/311:45:273
25378996329,4cyclictest33-21ksoftirqd/212:30:292
25379996227,8cyclictest41-21ksoftirqd/309:55:173
25379996128,9cyclictest41-21ksoftirqd/309:55:003
25379996128,9cyclictest41-21ksoftirqd/308:20:183
25379996128,7cyclictest41-21ksoftirqd/309:10:263
25379996128,7cyclictest41-21ksoftirqd/309:10:263
25379996127,8cyclictest41-21ksoftirqd/308:40:263
25379996123,9cyclictest41-21ksoftirqd/309:41:543
25379996122,3cyclictest41-21ksoftirqd/312:37:273
25379996122,10cyclictest41-21ksoftirqd/309:25:493
25379996028,8cyclictest41-21ksoftirqd/312:15:243
25379996026,9cyclictest41-21ksoftirqd/312:15:013
25379996023,9cyclictest41-21ksoftirqd/307:36:213
25379996022,9cyclictest41-21ksoftirqd/309:36:243
25379996022,9cyclictest41-21ksoftirqd/308:25:393
25379996022,9cyclictest41-21ksoftirqd/307:26:393
25379996022,9cyclictest41-21ksoftirqd/307:26:383
25379996022,10cyclictest41-21ksoftirqd/310:22:543
25379996021,9cyclictest41-21ksoftirqd/310:34:493
25378996030,3cyclictest33-21ksoftirqd/209:15:162
25379995928,9cyclictest41-21ksoftirqd/307:40:173
25379995928,8cyclictest41-21ksoftirqd/309:00:173
25379995928,8cyclictest41-21ksoftirqd/308:30:243
25379995922,9cyclictest41-21ksoftirqd/309:49:083
25379995922,8cyclictest41-21ksoftirqd/308:37:393
25379995921,9cyclictest41-21ksoftirqd/311:57:283
25378995932,4cyclictest33-21ksoftirqd/211:56:532
25378995931,3cyclictest33-21ksoftirqd/208:45:022
25378995922,9cyclictest33-21ksoftirqd/209:10:192
25378995922,9cyclictest33-21ksoftirqd/209:10:192
25379995829,3cyclictest41-21ksoftirqd/308:50:153
25379995822,6cyclictest41-21ksoftirqd/309:18:073
25379995821,9cyclictest41-21ksoftirqd/307:31:233
25378995831,4cyclictest33-21ksoftirqd/209:01:022
25378995831,4cyclictest33-21ksoftirqd/208:02:332
25378995829,3cyclictest33-21ksoftirqd/210:20:142
25378995822,4cyclictest33-21ksoftirqd/208:45:232
25379995726,9cyclictest41-21ksoftirqd/309:30:133
25379995725,3cyclictest41-21ksoftirqd/312:00:243
25379995721,3cyclictest41-21ksoftirqd/308:19:423
25379995720,13cyclictest41-21ksoftirqd/310:28:353
25378995731,4cyclictest33-21ksoftirqd/207:34:442
25378995728,4cyclictest33-21ksoftirqd/211:05:192
25378995728,4cyclictest33-21ksoftirqd/211:00:192
25378995728,3cyclictest33-21ksoftirqd/207:50:132
25379995627,8cyclictest41-21ksoftirqd/310:14:093
25379995625,8cyclictest41-21ksoftirqd/309:20:243
25379995623,9cyclictest41-21ksoftirqd/311:40:273
25379995623,8cyclictest41-21ksoftirqd/311:10:153
25379995621,7cyclictest41-21ksoftirqd/307:53:543
25379995620,7cyclictest41-21ksoftirqd/311:08:433
25378995628,4cyclictest33-21ksoftirqd/212:15:152
25378995626,5cyclictest33-21ksoftirqd/211:15:152
25378995624,4cyclictest33-21ksoftirqd/210:50:162
25378995623,3cyclictest33-21ksoftirqd/208:15:162
25378995622,8cyclictest33-21ksoftirqd/209:25:152
2537999554,9cyclictest41-21ksoftirqd/311:15:203
25379995520,9cyclictest41-21ksoftirqd/308:57:293
25379995520,8cyclictest41-21ksoftirqd/307:46:233
25379995520,7cyclictest41-21ksoftirqd/310:45:443
2537899557,7cyclictest33-21ksoftirqd/209:10:002
25378995528,3cyclictest33-21ksoftirqd/209:35:182
25378995524,10cyclictest33-21ksoftirqd/208:25:172
25379995418,11cyclictest41-21ksoftirqd/310:51:303
25378995425,5cyclictest33-21ksoftirqd/208:35:162
25378995422,10cyclictest33-21ksoftirqd/208:35:002
244442540,6sleep12537799cyclictest10:20:241
25379995326,4cyclictest41-21ksoftirqd/308:05:253
25379995324,7cyclictest41-21ksoftirqd/312:25:233
25379995321,4cyclictest41-21ksoftirqd/312:06:563
25379995320,4cyclictest41-21ksoftirqd/311:32:373
25379995319,7cyclictest41-21ksoftirqd/310:58:593
25379995318,10cyclictest41-21ksoftirqd/311:21:023
210142530,4sleep2311rcuc/212:25:182
25379995220,8cyclictest41-21ksoftirqd/311:02:133
25379995219,8cyclictest41-21ksoftirqd/308:45:133
2537899526,7cyclictest33-21ksoftirqd/208:50:272
2537899526,3cyclictest33-21ksoftirqd/209:40:252
25378995238,3cyclictest33-21ksoftirqd/210:00:002
25378995212,8cyclictest33-21ksoftirqd/208:10:192
25379995121,9cyclictest41-21ksoftirqd/307:18:483
25378995122,10cyclictest33-21ksoftirqd/208:05:192
25378995121,4cyclictest33-21ksoftirqd/207:25:242
25378995121,4cyclictest33-21ksoftirqd/207:25:242
25378995118,10cyclictest33-21ksoftirqd/207:45:132
25379995023,3cyclictest41-21ksoftirqd/310:35:273
25379995020,8cyclictest41-21ksoftirqd/311:38:083
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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