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2026-05-15 - 22:10
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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 May 15, 2026 12:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3614981997010,39cyclictest3738225-21awk10:50:183
361498199699,59cyclictest3721850-21ld10:20:183
3614981996910,19cyclictest0-21swapper/310:55:383
3614981996910,19cyclictest0-21swapper/310:47:103
3614981996910,19cyclictest0-21swapper/310:40:053
3614981996910,19cyclictest0-21swapper/310:35:323
3614981996829,19cyclictest3716418-21ntpq10:10:203
3614981996729,19cyclictest3672283-21ntp_states08:50:203
3614981996628,19cyclictest3772102-21latency_hist11:55:003
3614981996221,40cyclictest3631048-21taskset07:37:283
361498199614,18cyclictest0-21swapper/310:35:023
361498199602,39cyclictest3763821-21kworker/u32:2+events_unbound11:55:203
361498199591,39cyclictest501rcuc/309:05:203
361498199590,40cyclictest3620114-21taskset07:17:183
3614981995820,19cyclictest3779561-21ntpq12:05:203
3614981995737,19cyclictest3786484-21/usr/sbin/munin12:20:243
3614981995717,39cyclictest873-21mta-sts-daemon08:58:543
361498199560,55cyclictest0-21swapper/311:07:233
3614981995536,19cyclictest511ktimers/307:46:063
3614981995535,19cyclictest870-21mta-sts-daemon12:25:063
3614981995517,19cyclictest3654341-21df_inode08:20:143
3614981995516,19cyclictest3781508-21df12:10:133
361498199550,55cyclictest0-21swapper/309:16:463
361498199550,35cyclictest0-21swapper/307:27:183
3614981995435,19cyclictest511ktimers/308:18:363
3614981995419,15cyclictest0-21swapper/312:19:063
3614981995415,39cyclictest0-21swapper/308:26:043
3614981995415,39cyclictest0-21swapper/308:02:523
3614981995414,39cyclictest0-21swapper/312:31:103
3614981995414,39cyclictest0-21swapper/311:38:453
3614981995414,39cyclictest0-21swapper/311:04:383
3614981995414,39cyclictest0-21swapper/309:24:533
3614981995414,39cyclictest0-21swapper/307:50:483
3614981995414,39cyclictest0-21swapper/307:10:083
361498199540,54cyclictest0-21swapper/311:42:203
3614981995333,19cyclictest0-21swapper/307:41:523
3614981995319,15cyclictest0-21swapper/310:07:463
3614981995319,15cyclictest0-21swapper/309:49:093
3614981995319,15cyclictest0-21swapper/307:32:223
3614981995318,15cyclictest0-21swapper/311:30:243
3614981995314,39cyclictest0-21swapper/311:45:303
3614981995314,39cyclictest0-21swapper/309:51:163
3614981995314,39cyclictest0-21swapper/309:44:323
3614981995314,39cyclictest0-21swapper/308:38:303
3614981995314,39cyclictest0-21swapper/308:32:503
3614981995314,39cyclictest0-21swapper/307:56:023
3614981995314,19cyclictest0-21swapper/310:04:243
3614981995313,39cyclictest0-21swapper/312:36:313
3614981995313,39cyclictest0-21swapper/311:21:343
3614981995313,39cyclictest0-21swapper/309:31:043
3614981995313,39cyclictest0-21swapper/309:13:523
3614981995233,19cyclictest511ktimers/309:28:363
3614981995233,19cyclictest0-21swapper/310:28:563
3614981995213,39cyclictest0-21swapper/309:37:483
3614981995213,39cyclictest0-21swapper/308:05:503
3614981995213,39cyclictest0-21swapper/307:24:483
3614981995213,19cyclictest0-21swapper/311:15:023
3614981995212,39cyclictest0-21swapper/309:03:163
3614981995212,39cyclictest0-21swapper/308:45:163
3614981995212,39cyclictest0-21swapper/308:11:093
3614981995132,19cyclictest0-21swapper/312:00:283
3614981995131,19cyclictest0-21swapper/309:55:293
3614981995112,39cyclictest0-21swapper/311:27:073
3614981995031,19cyclictest0-21swapper/311:16:493
3614981995031,19cyclictest0-21swapper/310:15:203
3614981995011,39cyclictest0-21swapper/308:43:483
3614980995012,19cyclictest0-21swapper/208:05:162
361498299489,39cyclictest0-21swapper/408:35:164
3614978994810,19cyclictest0-21swapper/009:00:160
361498499478,39cyclictest0-21swapper/612:00:166
3614984994628,18cyclictest0-21swapper/608:15:166
361498599423,39cyclictest861rcuc/711:10:157
3614984994040,0cyclictest0-21swapper/612:35:136
361498499401,19cyclictest0-21swapper/611:20:156
361498599391,19cyclictest0-21swapper/712:05:167
3614984993920,19cyclictest0-21swapper/611:15:166
361498099390,20cyclictest0-21swapper/207:55:162
361497899380,19cyclictest0-21swapper/011:05:150
361497899380,19cyclictest0-21swapper/008:25:160
3614985993719,1cyclictest101550irq/39-eno2-TxRx-010:05:147
3614985993718,19cyclictest0-21swapper/710:25:147
3614985993717,19cyclictest871ktimers/709:25:157
3614978993737,0cyclictest0-21swapper/008:15:120
361497899370,18cyclictest0-21swapper/011:15:160
3614984993636,0cyclictest0-21swapper/609:55:166
3614984993618,18cyclictest0-21swapper/610:55:156
361498099360,35cyclictest0-21swapper/209:05:172
3614978993636,0cyclictest0-21swapper/010:15:120
361497899360,17cyclictest0-21swapper/010:10:160
361498599350,16cyclictest0-21swapper/708:57:057
3614978993534,0cyclictest0-21swapper/009:52:440
3614978993515,19cyclictest0-21swapper/008:20:160
3614978993514,20cyclictest0-21swapper/008:10:130
361497899350,34cyclictest0-21swapper/007:20:150
361497899350,15cyclictest0-21swapper/012:30:140
361497899350,15cyclictest0-21swapper/008:50:160
361498599340,15cyclictest0-21swapper/710:15:147
3614984993432,1cyclictest0-21swapper/608:50:166
361498499340,15cyclictest0-21swapper/611:00:156
361498299340,15cyclictest0-21swapper/408:05:164
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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