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2026-04-23 - 19:19
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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 Thu Apr 23, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172942203168,24sleep30-21swapper/307:07:103
172912203170,22sleep00-21swapper/007:07:070
174022202168,22sleep20-21swapper/207:08:332
173742202169,22sleep10-21swapper/107:08:121
1676621470,3sleep01780899cyclictest10:30:000
3072121390,3sleep21781099cyclictest12:05:172
1393911290,1ptp4l21421-21ls11:45:223
139391660,1ptp4l401ktimersoftd/307:35:153
220042610,7sleep01780899cyclictest08:25:170
168292550,3sleep116834-21cpuspeed_turbos08:15:151
42792530,3sleep00-21swapper/008:55:170
139391530,1ptp4l401ktimersoftd/310:06:203
151502500,2sleep20-21swapper/208:10:182
139391490,0ptp4l401ktimersoftd/312:00:363
1780999470,45cyclictest0-21swapper/110:34:031
1780999470,45cyclictest0-21swapper/110:34:021
1781099462,42cyclictest16163-21kworker/2:108:20:332
1781099462,42cyclictest16163-21kworker/2:108:20:332
1781099459,35cyclictest16210-21kworker/2:111:36:452
1780999443,38cyclictest29849-21cron09:49:591
139391440,1ptp4l401ktimersoftd/311:55:273
139391440,0ptp4l401ktimersoftd/311:28:253
17811994337,4cyclictest27481-21cron09:44:593
1781099435,37cyclictest16210-21kworker/2:112:01:442
139391430,0ptp4l401ktimersoftd/307:33:223
17811994130,9cyclictest41-21ksoftirqd/308:55:263
17811994117,3cyclictest41-21ksoftirqd/310:45:293
139391410,1ptp4l401ktimersoftd/312:25:523
139391410,0ptp4l401ktimersoftd/310:42:003
139391400,0ptp4l401ktimersoftd/311:03:263
1780999390,38cyclictest0-21swapper/108:40:231
139391390,0ptp4l401ktimersoftd/308:45:163
17811993825,10cyclictest41-21ksoftirqd/307:50:273
1781199375,2cyclictest41-21ksoftirqd/310:25:003
17811993733,2cyclictest41-21ksoftirqd/312:10:013
17811993732,3cyclictest41-21ksoftirqd/309:10:003
17811993732,3cyclictest41-21ksoftirqd/307:45:003
17811993730,4cyclictest41-21ksoftirqd/312:15:053
1781199370,2cyclictest41-21ksoftirqd/311:15:253
17811993631,3cyclictest41-21ksoftirqd/310:35:003
17811993631,3cyclictest41-21ksoftirqd/310:34:593
17811993630,4cyclictest41-21ksoftirqd/310:15:593
17811993630,3cyclictest41-21ksoftirqd/309:45:143
17811993626,8cyclictest41-21ksoftirqd/307:25:263
17811993624,9cyclictest41-21ksoftirqd/308:50:193
17810993631,3cyclictest33-21ksoftirqd/209:43:262
17809993630,4cyclictest25-21ksoftirqd/111:40:451
17809993630,4cyclictest25-21ksoftirqd/111:08:401
17809993630,4cyclictest25-21ksoftirqd/110:19:591
17808993631,3cyclictest9-21ksoftirqd/008:35:000
17808993630,4cyclictest9-21ksoftirqd/008:10:000
17811993531,3cyclictest41-21ksoftirqd/308:05:183
17811993531,2cyclictest41-21ksoftirqd/312:15:013
17811993531,2cyclictest41-21ksoftirqd/309:25:183
17811993530,3cyclictest41-21ksoftirqd/308:40:003
17811993530,3cyclictest41-21ksoftirqd/308:11:263
17811993529,4cyclictest41-21ksoftirqd/311:06:423
17811993529,4cyclictest41-21ksoftirqd/307:13:473
17810993530,3cyclictest33-21ksoftirqd/207:34:082
17810993529,4cyclictest33-21ksoftirqd/209:09:312
17810993529,4cyclictest33-21ksoftirqd/208:29:312
17810993529,4cyclictest33-21ksoftirqd/207:55:112
17810993529,3cyclictest977-21uname09:55:182
17809993530,3cyclictest25-21ksoftirqd/112:23:061
17809993530,3cyclictest25-21ksoftirqd/112:10:191
17809993529,4cyclictest25-21ksoftirqd/112:38:111
17809993529,4cyclictest25-21ksoftirqd/112:19:081
17809993529,4cyclictest25-21ksoftirqd/111:24:051
17809993529,4cyclictest25-21ksoftirqd/111:03:181
17809993529,4cyclictest25-21ksoftirqd/110:27:251
17809993529,4cyclictest25-21ksoftirqd/109:52:431
17809993529,4cyclictest25-21ksoftirqd/108:31:521
17809993529,4cyclictest25-21ksoftirqd/107:48:151
17808993530,3cyclictest9-21ksoftirqd/009:50:120
17808993530,3cyclictest9-21ksoftirqd/009:10:020
17808993529,4cyclictest9-21ksoftirqd/010:44:210
57898340,1rtkit-daemon577-21rtkit-daemon10:05:501
17811993431,2cyclictest41-21ksoftirqd/310:00:013
17811993430,3cyclictest41-21ksoftirqd/308:30:193
17811993429,3cyclictest41-21ksoftirqd/311:40:253
17811993429,3cyclictest41-21ksoftirqd/309:10:233
17811993429,3cyclictest41-21ksoftirqd/308:00:003
17811993428,4cyclictest41-21ksoftirqd/309:16:513
17811993428,4cyclictest41-21ksoftirqd/308:29:293
17811993428,4cyclictest41-21ksoftirqd/307:24:263
17811993428,3cyclictest41-21ksoftirqd/310:55:133
17810993429,3cyclictest33-21ksoftirqd/207:50:112
17810993429,3cyclictest33-21ksoftirqd/207:39:092
17810993428,4cyclictest33-21ksoftirqd/211:26:592
17810993428,4cyclictest33-21ksoftirqd/211:19:252
1780999343,2cyclictest121rcu_preempt07:34:301
17809993429,3cyclictest25-21ksoftirqd/111:40:001
17809993429,3cyclictest25-21ksoftirqd/109:14:511
17809993429,3cyclictest25-21ksoftirqd/108:55:101
17809993429,3cyclictest25-21ksoftirqd/108:35:101
17809993428,4cyclictest25-21ksoftirqd/110:57:061
17809993428,4cyclictest25-21ksoftirqd/110:11:521
17809993428,4cyclictest25-21ksoftirqd/108:12:101
17809993428,4cyclictest25-21ksoftirqd/107:53:241
17809993428,4cyclictest25-21ksoftirqd/107:41:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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