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2026-06-03 - 13:15
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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 Wed Jun 03, 2026 00:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1236110999213,79cyclictest1277449-21cut20:35:133
1236110999113,59cyclictest1390353-21kworker/u32:4+events_unbound00:20:393
1236110999113,59cyclictest1198835-21kworker/u32:3+events_unbound19:14:013
1236110999071,19cyclictest52-21ksoftirqd/323:24:103
1236110999014,57cyclictest1198835-21kworker/u32:3+events_unbound20:04:273
1236110998628,39cyclictest1386106-21ntpq23:50:213
123611099801,59cyclictest1329668-21/usr/sbin/munin22:10:013
1236110997517,39cyclictest1404796-21forks00:25:153
1236110997435,19cyclictest1334526-21unixbench-2d22:15:233
1236110997415,39cyclictest1362111-21unixbench-2d23:05:253
1236110997336,18cyclictest52-21ksoftirqd/320:50:143
1236110997214,39cyclictest1288917-21aten2.4_rfpower20:55:113
1236110997033,18cyclictest362-21jbd2/sda2-821:50:363
1236110997033,18cyclictest1247328-21kworker/u32:6+flush-8:019:51:313
1236110997012,58cyclictest1243780-21kworker/u32:1+events_unbound20:21:153
1236110997012,39cyclictest1308160-21kworker/u32:0+events_unbound21:32:373
1236110997011,40cyclictest1324549-21kworker/u32:3+events_unbound22:02:003
1236114996910,19cyclictest0-21swapper/721:30:257
1236110996911,39cyclictest1332716-21kworker/u32:0+events_unbound22:48:143
1236110996831,18cyclictest1280115-21kworker/3:1+events23:02:043
1236110996830,18cyclictest191rcu_preempt20:48:213
1236110996830,18cyclictest191rcu_preempt20:48:203
1236110996829,39cyclictest52-21ksoftirqd/321:20:173
1236110996810,39cyclictest764417-21kworker/u32:5+events_unbound19:22:263
1236110996526,20cyclictest1086-21runrttasks20:15:363
1236110996243,19cyclictest1272600-21if_eno120:25:153
1236110996223,19cyclictest0-21swapper/321:14:093
123611099610,59cyclictest362-21jbd2/sda2-823:15:153
1236110995921,19cyclictest1300266-21/usr/sbin/munin21:15:143
123611099580,39cyclictest1086-21runrttasks19:45:553
1236110995719,38cyclictest0-21swapper/320:32:283
1236110995718,39cyclictest0-21swapper/321:55:273
1236110995637,0cyclictest0-21swapper/321:45:133
1236110995618,19cyclictest1400107-21ntpq00:15:223
1236110995615,20cyclictest1258011-21/usr/sbin/munin20:00:013
1236114995512,19cyclictest0-21swapper/719:30:117
1236110995538,17cyclictest0-21swapper/323:35:233
1236110995516,39cyclictest511ktimers/321:25:383
1236110995436,18cyclictest0-21swapper/322:11:573
1236110995419,35cyclictest0-21swapper/323:49:563
1236110995416,19cyclictest1340603-21grep22:30:003
1236110995335,18cyclictest52-21ksoftirqd/319:44:363
1236110995334,19cyclictest876-21mta-sts-daemon23:30:263
1236110995319,34cyclictest0-21swapper/321:37:383
1236110995319,34cyclictest0-21swapper/319:27:573
1236110995319,34cyclictest0-21swapper/300:39:353
1236110995319,34cyclictest0-21swapper/300:06:383
1236110995319,15cyclictest0-21swapper/323:40:453
1236110995319,15cyclictest0-21swapper/323:28:493
1236110995319,15cyclictest0-21swapper/321:09:103
1236110995319,15cyclictest0-21swapper/320:43:433
1236110995319,15cyclictest0-21swapper/320:43:423
1236110995319,15cyclictest0-21swapper/320:14:373
1236110995319,15cyclictest0-21swapper/320:08:293
1236110995319,15cyclictest0-21swapper/300:34:553
1236110995319,14cyclictest0-21swapper/319:16:373
1236110995314,39cyclictest0-21swapper/323:59:543
1236110995314,39cyclictest0-21swapper/323:13:163
1236110995314,39cyclictest0-21swapper/322:42:033
1236110995314,39cyclictest0-21swapper/300:01:533
1236110995234,18cyclictest1313631-21kworker/u32:4+flush-8:022:35:463
1236110995233,19cyclictest0-21swapper/322:57:063
1236110995213,39cyclictest319-21ice-ptp-0000:f4:00.022:23:373
1236110995213,39cyclictest0-21swapper/300:14:353
1236110995212,39cyclictest1198835-21kworker/u32:3+flush-8:019:31:463
1236110995133,0cyclictest0-21swapper/321:01:513
1236110995112,39cyclictest0-21swapper/322:53:073
1236110995112,39cyclictest0-21swapper/322:30:513
1236110995112,39cyclictest0-21swapper/321:42:503
1236110995112,39cyclictest0-21swapper/319:35:093
1236108995012,19cyclictest0-21swapper/123:20:171
1236108994911,19cyclictest0-21swapper/123:50:161
1236114994810,19cyclictest0-21swapper/720:25:157
123611199489,19cyclictest0-21swapper/423:20:174
123610799479,19cyclictest0-21swapper/019:40:120
123611199468,19cyclictest0-21swapper/419:20:124
123610799457,19cyclictest0-21swapper/023:30:160
123611199435,19cyclictest0-21swapper/420:35:164
123610999433,39cyclictest0-21swapper/200:15:182
123611199424,19cyclictest0-21swapper/422:05:174
123611499413,19cyclictest0-21swapper/720:20:167
123611199413,19cyclictest0-21swapper/400:15:174
123611499401,39cyclictest0-21swapper/722:00:177
123611499390,15cyclictest0-21swapper/722:15:167
123611399390,39cyclictest0-21swapper/621:00:176
123611199391,19cyclictest0-21swapper/423:15:134
1236109993939,0cyclictest1236106-21cyclictest21:40:152
123610999391,19cyclictest0-21swapper/220:30:162
123611499380,19cyclictest0-21swapper/721:15:187
1236111993838,0cyclictest0-21swapper/420:40:134
1236111993838,0cyclictest0-21swapper/420:40:124
1236114993737,0cyclictest1390014-21kworker/7:0+events00:16:147
1236114993713,0cyclictest0-21swapper/723:40:157
1236107993714,23cyclictest0-21swapper/000:05:190
1236107993618,0cyclictest0-21swapper/022:35:160
1236114993535,0cyclictest1271740-21kworker/7:2+events21:36:327
1236114993516,19cyclictest0-21swapper/722:50:167
123611499350,34cyclictest0-21swapper/723:30:167
123611499350,16cyclictest0-21swapper/722:25:157
1236112993535,0cyclictest0-21swapper/520:35:175
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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