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2026-06-10 - 21:17
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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 Jun 10, 2026 12:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
210092229166,52sleep20-21swapper/207:09:102
139491204169,23phc2sys0-21swapper/307:05:113
208382203170,22sleep00-21swapper/007:07:030
208142203171,21sleep10-21swapper/107:06:431
21370995711,22cyclictest5655-21/usr/sbin/munin07:45:203
199252570,3sleep319922-21apt-config08:15:013
139391500,1ptp4l391rcuc/312:07:173
57898480,2rtkit-daemon0-21swapper/110:20:561
57898440,2rtkit-daemon0-21swapper/108:45:561
57898430,8rtkit-daemon0-21swapper/107:34:241
57898430,7rtkit-daemon0-21swapper/111:56:321
139391430,0ptp4l401ktimersoftd/312:00:193
139391430,0ptp4l401ktimersoftd/309:03:123
139391430,0ptp4l401ktimersoftd/308:06:323
57898420,8rtkit-daemon0-21swapper/108:23:081
21369994236,4cyclictest5542-21sh09:59:592
21369994211,18cyclictest24171-21df_abs11:45:142
21369994211,18cyclictest24171-21df_abs11:45:142
139391420,0ptp4l401ktimersoftd/311:25:403
139391420,0ptp4l401ktimersoftd/311:07:473
139391410,0ptp4l401ktimersoftd/309:49:213
139391410,0ptp4l401ktimersoftd/309:24:343
139391410,0ptp4l401ktimersoftd/309:05:373
21367994023,15cyclictest9-21ksoftirqd/007:30:100
2137099390,27cyclictest0-21swapper/312:15:233
21369993934,3cyclictest33-21ksoftirqd/212:35:012
21369993920,17cyclictest33-21ksoftirqd/210:15:342
2137099380,19cyclictest0-21swapper/310:58:353
57898370,1rtkit-daemon0-21swapper/007:55:310
2137099370,19cyclictest0-21swapper/310:10:223
21369993731,4cyclictest33-21ksoftirqd/209:48:272
21368993732,3cyclictest25-21ksoftirqd/108:05:011
21368993732,3cyclictest25-21ksoftirqd/108:05:001
21368993731,4cyclictest25-21ksoftirqd/108:32:001
21369993631,3cyclictest33-21ksoftirqd/211:00:112
21369993630,4cyclictest33-21ksoftirqd/207:48:242
21368993631,3cyclictest25-21ksoftirqd/110:39:151
21368993630,4cyclictest25-21ksoftirqd/112:07:141
21368993630,4cyclictest25-21ksoftirqd/110:01:181
21368993630,4cyclictest25-21ksoftirqd/109:25:591
21368993630,4cyclictest25-21ksoftirqd/107:58:221
21367993612,3cyclictest30703-21date07:30:000
57898350,2rtkit-daemon0-21swapper/112:33:321
21370993531,3cyclictest41-21ksoftirqd/308:00:153
21370993531,3cyclictest41-21ksoftirqd/308:00:153
21370993530,3cyclictest41-21ksoftirqd/312:38:163
21370993529,4cyclictest41-21ksoftirqd/311:42:533
21370993529,4cyclictest41-21ksoftirqd/310:49:023
21369993531,3cyclictest33-21ksoftirqd/209:28:342
21369993530,3cyclictest33-21ksoftirqd/211:20:112
21369993529,4cyclictest33-21ksoftirqd/209:21:592
21369993528,4cyclictest33-21ksoftirqd/209:50:102
21368993530,3cyclictest551-21rs:main1
21368993530,3cyclictest25-21ksoftirqd/110:08:081
21368993530,3cyclictest25-21ksoftirqd/108:58:491
21368993529,4cyclictest25-21ksoftirqd/112:17:411
21368993529,4cyclictest25-21ksoftirqd/111:13:301
21368993529,4cyclictest25-21ksoftirqd/111:04:551
21368993529,4cyclictest25-21ksoftirqd/108:50:091
21368993529,4cyclictest25-21ksoftirqd/107:36:361
21367993529,4cyclictest9-21ksoftirqd/012:25:030
21367993529,4cyclictest9-21ksoftirqd/009:07:330
21367993529,4cyclictest9-21ksoftirqd/008:38:170
21367993512,3cyclictest9659-21cut12:20:200
21367993512,3cyclictest21285-21cron09:25:000
21370993428,4cyclictest41-21ksoftirqd/311:10:073
21370993428,4cyclictest41-21ksoftirqd/309:58:433
21370993428,4cyclictest41-21ksoftirqd/309:50:293
21370993428,4cyclictest41-21ksoftirqd/308:40:433
21369993429,3cyclictest33-21ksoftirqd/209:00:102
21369993428,4cyclictest33-21ksoftirqd/212:01:212
21369993427,5cyclictest33-21ksoftirqd/210:21:042
21368993428,4cyclictest25-21ksoftirqd/112:29:481
21368993428,4cyclictest25-21ksoftirqd/111:46:401
21368993428,4cyclictest25-21ksoftirqd/111:46:401
21368993428,4cyclictest25-21ksoftirqd/111:32:591
21368993428,4cyclictest25-21ksoftirqd/109:32:401
21368993428,4cyclictest25-21ksoftirqd/109:20:341
21368993428,4cyclictest25-21ksoftirqd/107:45:461
21368993428,3cyclictest30777-21cron09:45:011
21367993429,3cyclictest9-21ksoftirqd/008:03:400
21367993429,3cyclictest9-21ksoftirqd/008:03:400
21367993428,4cyclictest9-21ksoftirqd/012:14:390
21367993428,4cyclictest9-21ksoftirqd/011:39:010
21367993427,4cyclictest9-21ksoftirqd/010:03:150
21367993412,3cyclictest18264-21seq11:30:390
21370993328,3cyclictest41-21ksoftirqd/309:30:273
21370993327,4cyclictest41-21ksoftirqd/311:48:353
21370993327,4cyclictest41-21ksoftirqd/311:48:353
21370993327,4cyclictest41-21ksoftirqd/310:35:423
21370993327,4cyclictest41-21ksoftirqd/307:51:143
21370993327,4cyclictest41-21ksoftirqd/307:13:363
2137099331,19cyclictest449-21dbus-daemon07:40:233
2137099330,18cyclictest0-21swapper/309:35:233
2136999339,21cyclictest17220-21cut11:30:192
2136999337,21cyclictest30011-21mailstats09:40:232
2136999334,27cyclictest0-21swapper/211:09:532
2136999334,26cyclictest13053-21perf12:30:012
21369993328,3cyclictest33-21ksoftirqd/209:17:002
21369993328,3cyclictest33-21ksoftirqd/207:50:452
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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