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2026-01-05 - 06:27
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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 rack6slot0.osadl.org (updated Mon Jan 05, 2026 01:01:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8882992032,8cyclictest3542-21CPU27
8882992032,8cyclictest3542-21CPU27
8882992032,8cyclictest3542-21CPU27
888499200194,3cyclictest0-21swapper/3523:51:0729
888499200194,3cyclictest0-21swapper/3523:51:0729
888499200194,3cyclictest0-21swapper/3523:51:0629
886899200100,84cyclictest3542-21CPU13
886899200100,84cyclictest3542-21CPU13
886899200100,84cyclictest3542-21CPU13
886899197123,13cyclictest0-21swapper/2021:05:1613
886899197123,13cyclictest0-21swapper/2021:05:1613
885699195186,3cyclictest0-21swapper/1023:10:192
885699195186,3cyclictest0-21swapper/1023:10:192
885699195186,3cyclictest0-21swapper/1023:10:192
887199193183,7cyclictest0-21swapper/2319:32:2116
887199193183,7cyclictest0-21swapper/2319:32:2116
885199191159,22cyclictest0-21swapper/623:53:2236
885199191159,22cyclictest0-21swapper/623:53:2236
885199191159,22cyclictest0-21swapper/623:53:2236
886899190158,14cyclictest0-21swapper/2022:54:1413
886899190158,14cyclictest0-21swapper/2022:54:1413
886899187166,8cyclictest171rcu_preempt00:09:2513
886899187166,8cyclictest171rcu_preempt00:09:2513
886499187157,16cyclictest171rcu_preempt23:46:479
886499187157,16cyclictest171rcu_preempt23:46:479
8859991871,3cyclictest11756-21sshd00:13:155
8859991871,3cyclictest11756-21sshd00:13:155
8859991871,3cyclictest11756-21sshd00:13:155
887199186176,8cyclictest0-21swapper/2300:02:3016
887199186176,8cyclictest0-21swapper/2300:02:3016
887199186131,44cyclictest2461-21CPU16
887199186131,44cyclictest2461-21CPU16
885299185153,25cyclictest0-21swapper/722:37:2137
885299185153,25cyclictest0-21swapper/722:37:2137
885299185153,25cyclictest0-21swapper/722:37:2137
888499183166,10cyclictest0-21swapper/3500:06:3229
888499183166,10cyclictest0-21swapper/3500:06:3229
885599183170,11cyclictest0-21swapper/921:10:5239
885599183170,11cyclictest0-21swapper/921:10:5239
8852991831,179cyclictest1737-21sshd21:50:2337
8852991831,179cyclictest1737-21sshd21:50:2337
8852991831,179cyclictest1737-21sshd21:50:2337
885199182162,17cyclictest0-21swapper/600:04:3036
885199182162,17cyclictest0-21swapper/600:04:3036
888499181170,7cyclictest0-21swapper/3523:40:0429
888499181170,7cyclictest0-21swapper/3523:40:0429
888099181162,11cyclictest0-21swapper/3122:26:4225
888099181162,11cyclictest0-21swapper/3122:26:4225
886899181134,23cyclictest0-21swapper/2023:05:0913
886899181134,23cyclictest0-21swapper/2023:05:0913
885599181167,10cyclictest0-21swapper/921:36:1339
885599181167,10cyclictest0-21swapper/921:36:1239
885199181167,12cyclictest0-21swapper/623:20:0436
885199181167,12cyclictest0-21swapper/623:20:0436
885199181146,24cyclictest0-21swapper/622:31:0636
885199181146,24cyclictest0-21swapper/622:31:0636
885199181146,24cyclictest0-21swapper/622:31:0636
884899180176,2cyclictest0-21swapper/322:07:1123
884899180176,2cyclictest0-21swapper/322:07:1123
8851991791,2cyclictest0-21swapper/623:10:0036
8851991791,2cyclictest0-21swapper/623:10:0036
887399178175,2cyclictest0-21swapper/2522:55:2518
887399178175,2cyclictest0-21swapper/2522:55:2518
887399178175,2cyclictest0-21swapper/2522:55:2418
886999178143,31cyclictest0-21swapper/2121:31:3814
886999178143,31cyclictest0-21swapper/2121:31:3814
886899178158,10cyclictest0-21swapper/2021:46:5713
886899178158,10cyclictest0-21swapper/2021:46:5713
886899178121,47cyclictest3547-21CPU13
886899178121,47cyclictest3547-21CPU13
885599178168,2cyclictest0-21swapper/923:31:5039
885599178168,2cyclictest0-21swapper/923:31:5039
885599178168,2cyclictest0-21swapper/923:31:5039
888099177167,3cyclictest171rcu_preempt21:54:3125
888099177167,3cyclictest171rcu_preempt21:54:3125
888099177167,3cyclictest171rcu_preempt21:54:3125
8869991771,79cyclictest0-21swapper/2121:27:1314
8869991771,79cyclictest0-21swapper/2121:27:1314
8869991771,79cyclictest0-21swapper/2121:27:1314
886899177150,12cyclictest171rcu_preempt19:30:2513
886899177150,12cyclictest171rcu_preempt19:30:2513
885599177141,18cyclictest0-21swapper/923:53:2439
885599177141,18cyclictest0-21swapper/923:53:2439
885599177141,18cyclictest0-21swapper/923:53:2439
885299177151,23cyclictest0-21swapper/721:56:0637
885299177151,23cyclictest0-21swapper/721:56:0637
885199177163,12cyclictest0-21swapper/622:15:2036
885199177163,12cyclictest0-21swapper/622:15:2036
885199177163,12cyclictest0-21swapper/622:15:2036
885199177156,18cyclictest0-21swapper/622:58:1436
885199177156,18cyclictest0-21swapper/622:58:1436
885199177156,18cyclictest0-21swapper/622:58:1436
885099177165,5cyclictest25005-21gdbus23:12:1635
885099177165,5cyclictest25005-21gdbus23:12:1635
885099177165,5cyclictest25005-21gdbus23:12:1635
884899177133,40cyclictest0-21swapper/321:21:1123
884899177133,40cyclictest0-21swapper/321:21:1123
884899177133,40cyclictest0-21swapper/321:21:1023
888099176154,12cyclictest171rcu_preempt21:33:4625
888099176154,12cyclictest171rcu_preempt21:33:4525
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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