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2025-12-05 - 20:01
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot7.osadl.org (updated Fri Dec 05, 2025 12:46:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71614699653,59cyclictest743335-21kworker/u32:4+events_unbound09:40:123
716146996425,39cyclictest0-21swapper/310:16:283
716146996344,18cyclictest0-21swapper/310:00:203
716146996323,39cyclictest0-21swapper/309:10:423
71614699624,39cyclictest789143-21kworker/u32:1+flush-8:010:35:203
716146996223,39cyclictest0-21swapper/307:11:563
71614699613,39cyclictest105-21kcompactd009:20:063
716146996121,39cyclictest0-21swapper/309:09:433
71614699602,39cyclictest0-21swapper/311:00:513
71614699602,39cyclictest0-21swapper/311:00:503
716146996021,39cyclictest52-21ksoftirqd/312:22:513
716146996021,19cyclictest0-21swapper/310:59:533
716146996020,39cyclictest0-21swapper/312:05:443
71614699591,39cyclictest743335-21kworker/u32:4+events_unbound11:37:493
716146995838,19cyclictest726959-21ntpq07:40:193
716146995817,40cyclictest804855-21ntpq10:40:193
71614699580,58cyclictest781035-21kworker/u32:3+events_unbound10:47:253
71614699580,57cyclictest854256-21kworker/u32:2+events_unbound12:32:253
71614699580,39cyclictest828746-21/usr/sbin/munin11:25:123
71614699580,39cyclictest362-21jbd2/sda2-807:35:363
716146995739,18cyclictest52-21ksoftirqd/310:54:343
71614699570,57cyclictest781035-21kworker/u32:3+events_unbound10:13:473
71614699570,38cyclictest715978-21kworker/u32:3+events_unbound08:16:133
71614699570,38cyclictest697467-21kworker/u32:4+events_unbound07:21:363
716146995617,20cyclictest319-21ice-ptp-0000:f4:00.008:58:123
71614699560,37cyclictest828738-21kworker/u32:3+events_unbound12:19:483
716143995618,19cyclictest805647-21kworker/0:2+ice11:00:170
716143995618,19cyclictest805647-21kworker/0:2+ice11:00:160
716146995536,19cyclictest7950892sleep310:25:123
716146995536,18cyclictest746937-21kworker/u32:0+rpciod09:03:043
71614699550,36cyclictest740924-21kworker/u32:2+events_unbound09:36:013
716146995435,18cyclictest779201-21kernelversion09:55:183
716146995419,15cyclictest0-21swapper/311:56:393
716146995416,19cyclictest3389514-21systemd-journal07:30:003
716146995415,38cyclictest841539-21ntpq11:45:213
716146995414,39cyclictest0-21swapper/309:34:283
716146995414,39cyclictest0-21swapper/308:05:333
716146995319,15cyclictest0-21swapper/311:17:183
716146995314,39cyclictest773738-21meminfo09:45:193
716146995314,39cyclictest0-21swapper/311:23:013
716146995314,39cyclictest0-21swapper/309:53:023
716146995313,39cyclictest0-21swapper/311:33:343
716146995312,39cyclictest854438-21telnet12:10:153
716146995233,19cyclictest0-21swapper/308:50:533
716146995212,39cyclictest0-21swapper/307:52:273
716145995214,19cyclictest0-21swapper/212:35:142
716146995132,19cyclictest731411-21ntpq07:55:183
716146995132,19cyclictest0-21swapper/311:40:143
716146995132,19cyclictest0-21swapper/307:45:303
716146995132,19cyclictest0-21swapper/307:30:453
716146995130,21cyclictest868716-21hostname12:35:103
716146995112,39cyclictest0-21swapper/311:13:393
716146995112,39cyclictest0-21swapper/310:23:053
716146995112,39cyclictest0-21swapper/308:45:583
716148995012,19cyclictest0-21swapper/509:50:165
716146995031,19cyclictest0-21swapper/311:05:083
716146995031,19cyclictest0-21swapper/310:31:313
716146995031,19cyclictest0-21swapper/309:15:153
716146995011,39cyclictest0-21swapper/312:26:123
716146995011,39cyclictest0-21swapper/312:02:473
716146995011,39cyclictest0-21swapper/308:41:373
716146995011,39cyclictest0-21swapper/308:01:573
716144995013,18cyclictest0-21swapper/108:55:141
716149994910,39cyclictest0-21swapper/609:20:146
716146994931,18cyclictest0-21swapper/308:28:153
716146994931,18cyclictest0-21swapper/307:18:233
716146994930,19cyclictest0-21swapper/308:31:213
716146994930,19cyclictest0-21swapper/308:20:163
716146994910,39cyclictest0-21swapper/308:12:443
71614499499,39cyclictest0-21swapper/109:50:151
716146994830,18cyclictest0-21swapper/310:07:383
716146994829,19cyclictest0-21swapper/309:27:033
716148994728,19cyclictest0-21swapper/512:35:145
71614699478,39cyclictest0-21swapper/308:36:523
716146994628,18cyclictest0-21swapper/311:54:143
71614499468,19cyclictest0-21swapper/112:30:181
716149994544,1cyclictest859483-21gpgv12:20:006
71614599457,38cyclictest0-21swapper/211:15:172
716144994526,19cyclictest0-21swapper/107:10:151
71614999413,19cyclictest0-21swapper/610:45:186
71614899390,20cyclictest0-21swapper/511:55:155
71615099380,18cyclictest0-21swapper/711:52:347
71614899380,19cyclictest0-21swapper/510:15:165
71614999370,17cyclictest0-21swapper/607:25:156
71615099360,17cyclictest0-21swapper/709:45:177
716148993618,18cyclictest691ktimers/510:35:185
71614499360,35cyclictest0-21swapper/110:10:171
71615099350,15cyclictest0-21swapper/712:20:167
71614999350,35cyclictest0-21swapper/610:30:206
71614899350,34cyclictest0-21swapper/509:45:165
716147993515,19cyclictest0-21swapper/412:30:184
71614799350,34cyclictest0-21swapper/409:40:174
71614499350,16cyclictest0-21swapper/111:00:231
71614499350,16cyclictest0-21swapper/111:00:221
71615099340,15cyclictest0-21swapper/709:55:187
71614999340,34cyclictest0-21swapper/610:25:176
71614999340,34cyclictest0-21swapper/609:40:166
71614899340,15cyclictest0-21swapper/507:25:165
71614599340,15cyclictest0-21swapper/209:20:152
71614499340,15cyclictest0-21swapper/110:25:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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