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2026-06-06 - 16:44
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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 Sat Jun 06, 2026 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
357410997960,19cyclictest424811-21ld21:10:184
357410997234,38cyclictest378796-21cat19:45:234
357410997234,38cyclictest378796-21cat19:45:224
357410997232,19cyclictest0-21swapper/422:49:294
357410997213,59cyclictest394775-21ld20:15:184
357410997211,58cyclictest437459-21kworker/u32:5+events_unbound23:03:464
357410997033,18cyclictest419396-21uname21:00:184
357410997030,39cyclictest515361-21ld23:55:184
357410997030,39cyclictest0-21swapper/420:11:114
357410996930,39cyclictest0-21swapper/423:41:554
357410996930,39cyclictest0-21swapper/422:40:104
357410996930,39cyclictest0-21swapper/421:56:024
357410996929,39cyclictest0-21swapper/421:23:584
357410996911,39cyclictest360725-21kworker/u32:5+events_unbound19:58:584
357410996830,19cyclictest441497-21ntpq21:40:194
357410996729,38cyclictest0-21swapper/422:02:594
357410996728,39cyclictest0-21swapper/421:51:394
357410996728,38cyclictest1086-21runrttasks21:45:144
357410996728,19cyclictest0-21swapper/400:24:274
357410996710,38cyclictest0-21swapper/421:27:514
35741099657,39cyclictest359420-21timerandwakeup19:10:234
35741099657,39cyclictest354347-21kworker/u32:0+events_unbound19:16:594
35741099635,39cyclictest0-21swapper/420:47:114
35741099634,58cyclictest61-21ksoftirqd/423:50:164
357410996223,19cyclictest0-21swapper/423:49:504
357410996021,39cyclictest0-21swapper/400:17:024
35741099591,39cyclictest470798-21grep22:35:154
35740699581,38cyclictest0-21swapper/023:15:150
35741099571,37cyclictest437459-21kworker/u32:5+events_unbound22:17:354
357410995615,20cyclictest874-21mta-sts-daemon00:00:454
357410995537,18cyclictest601ktimers/420:52:184
357410995536,19cyclictest601ktimers/422:34:444
357410995536,18cyclictest4538502sleep422:05:104
357410995519,36cyclictest0-21swapper/420:31:594
357410995515,39cyclictest389390-21ntp_states20:05:204
357410995514,20cyclictest0-21swapper/400:28:244
357410995419,35cyclictest0-21swapper/421:31:064
357410995419,35cyclictest0-21swapper/420:01:274
357410995419,35cyclictest0-21swapper/419:39:514
357410995419,35cyclictest0-21swapper/419:39:504
357410995419,35cyclictest0-21swapper/419:29:354
357410995419,35cyclictest0-21swapper/400:11:434
357410995419,35cyclictest0-21swapper/400:11:424
357410995419,15cyclictest0-21swapper/423:26:264
357410995419,15cyclictest0-21swapper/422:10:114
357410995419,15cyclictest0-21swapper/419:50:554
357410995415,39cyclictest364934-21grep19:20:224
357410995415,19cyclictest601ktimers/400:35:284
357410995414,39cyclictest0-21swapper/400:05:214
357412995314,19cyclictest0-21swapper/622:15:176
357410995319,34cyclictest0-21swapper/422:53:504
357410995319,15cyclictest0-21swapper/423:22:594
357410995319,15cyclictest0-21swapper/421:08:434
357410995318,35cyclictest0-21swapper/419:40:024
357410995315,19cyclictest465992-21ntpq22:25:194
357410995314,39cyclictest0-21swapper/422:20:184
357410995314,39cyclictest0-21swapper/421:36:194
357410995314,39cyclictest0-21swapper/420:55:394
357410995314,39cyclictest0-21swapper/420:39:394
357410995313,20cyclictest0-21swapper/419:32:304
357412995214,38cyclictest0-21swapper/623:50:156
357410995233,19cyclictest0-21swapper/423:38:184
357410995233,19cyclictest0-21swapper/423:33:194
357410995233,19cyclictest0-21swapper/420:44:384
357410995213,39cyclictest0-21swapper/400:31:514
357410995212,19cyclictest0-21swapper/421:17:574
357413995113,19cyclictest0-21swapper/721:40:157
357410995133,18cyclictest0-21swapper/423:10:544
357410995133,18cyclictest0-21swapper/420:28:074
357410995132,19cyclictest0-21swapper/422:59:554
357410995132,19cyclictest0-21swapper/420:20:034
357409995133,18cyclictest0-21swapper/320:45:153
357413995012,19cyclictest0-21swapper/723:35:147
357412995032,18cyclictest0-21swapper/622:50:156
357410995031,19cyclictest493371-21ntpq23:15:214
357410995011,39cyclictest0-21swapper/423:05:274
357408995031,19cyclictest0-21swapper/219:20:152
35740799500,50cyclictest0-21swapper/123:45:171
357412994910,39cyclictest0-21swapper/622:25:166
357409994931,18cyclictest0-21swapper/323:05:153
357413994810,19cyclictest0-21swapper/719:40:147
357411994810,19cyclictest0-21swapper/519:10:155
35740899479,38cyclictest0-21swapper/221:55:152
35740899479,19cyclictest0-21swapper/220:25:152
357408994728,19cyclictest0-21swapper/222:05:162
35741299469,18cyclictest0-21swapper/620:10:156
35741299468,19cyclictest0-21swapper/622:55:166
35740999468,19cyclictest0-21swapper/300:05:153
35741399457,19cyclictest0-21swapper/700:25:157
35741299457,19cyclictest0-21swapper/600:15:166
35741299446,19cyclictest0-21swapper/621:55:156
35740899446,19cyclictest0-21swapper/221:20:172
35741199435,38cyclictest0-21swapper/520:35:155
35741399424,19cyclictest0-21swapper/723:10:147
35741199424,19cyclictest0-21swapper/519:35:155
35741199424,19cyclictest0-21swapper/519:35:155
35740699424,19cyclictest0-21swapper/021:55:150
35741199412,39cyclictest0-21swapper/522:25:155
35740799413,19cyclictest0-21swapper/119:30:161
35740699413,19cyclictest0-21swapper/000:10:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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