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2026-05-10 - 20:58
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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 Sun May 10, 2026 13:02:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29570992361,4cyclictest2447-21CPU38
29570992361,4cyclictest2447-21CPU38
29570992361,4cyclictest2447-21CPU38
2960799210115,90cyclictest4407-21CPU33
2960799210115,90cyclictest4407-21CPU33
29570992071,4cyclictest1360-21systemd-logind11:47:5438
29570992071,4cyclictest1360-21systemd-logind11:47:5438
29570992071,4cyclictest1360-21systemd-logind11:47:5338
2960799205197,5cyclictest2459-21CPU33
2960799205197,5cyclictest2459-21CPU33
2956299202194,4cyclictest3610-21CPU1
2960799201193,5cyclictest0-21swapper/3909:40:4333
2960799201193,5cyclictest0-21swapper/3909:40:4333
2960799201193,5cyclictest0-21swapper/3909:40:4233
2959899200188,3cyclictest0-21swapper/3310:03:2027
2959899200188,3cyclictest0-21swapper/3310:03:2027
2959899200188,3cyclictest0-21swapper/3310:03:1927
2960799198189,6cyclictest0-21swapper/3909:34:1533
2960799198189,6cyclictest0-21swapper/3909:34:1533
2960799198189,6cyclictest0-21swapper/3909:34:1533
2959899197192,4cyclictest0-21swapper/3310:29:2227
2959899197192,4cyclictest0-21swapper/3310:29:2127
2956999196151,43cyclictest0-21swapper/708:10:2437
2956999196151,43cyclictest0-21swapper/708:10:2437
2960799195186,6cyclictest0-21swapper/3909:15:1433
2960799195186,6cyclictest0-21swapper/3909:15:1333
2960799195186,6cyclictest0-21swapper/3909:15:1333
2958499195192,2cyclictest0-21swapper/2009:10:4013
2958499195192,2cyclictest0-21swapper/2009:10:4013
2956799195128,30cyclictest0-21swapper/611:14:1336
2956799195128,30cyclictest0-21swapper/611:14:1336
2956799195128,30cyclictest0-21swapper/611:14:1236
29570991942,4cyclictest37358-21CPU38
29570991942,4cyclictest37358-21CPU38
2960799193171,13cyclictest0-21swapper/3908:00:3533
2960799193171,13cyclictest0-21swapper/3908:00:3533
295959919375,107cyclictest0-21swapper/3012:03:2524
295959919375,107cyclictest0-21swapper/3012:03:2524
295959919375,107cyclictest0-21swapper/3012:03:2424
2958899192163,17cyclictest3544-21CPU17
2958899192163,17cyclictest3544-21CPU17
2958899192163,17cyclictest3544-21CPU17
2960399191178,10cyclictest0-21swapper/3610:41:1930
2960399191178,10cyclictest0-21swapper/3610:41:1830
2960799189184,4cyclictest0-21swapper/3909:50:1233
2960799189184,4cyclictest0-21swapper/3909:50:1233
2959899189183,4cyclictest0-21swapper/3310:06:1627
2959899189183,4cyclictest0-21swapper/3310:06:1627
2959899189183,4cyclictest0-21swapper/3310:06:1627
2958799189172,10cyclictest171rcu_preempt10:57:2616
2958799189172,10cyclictest171rcu_preempt10:57:2616
2958799189172,10cyclictest171rcu_preempt10:57:2516
2958799189151,21cyclictest0-21swapper/2309:23:2316
2958799189151,21cyclictest0-21swapper/2309:23:2316
2958699189184,4cyclictest0-21swapper/2210:02:3315
2958699189184,4cyclictest0-21swapper/2210:02:3315
2958699189184,4cyclictest0-21swapper/2210:02:3315
2956999189183,4cyclictest0-21swapper/710:52:0737
2956999189183,4cyclictest0-21swapper/710:52:0737
2956999189183,4cyclictest0-21swapper/710:52:0737
2959899188179,6cyclictest0-21swapper/3312:05:0527
2959899188179,6cyclictest0-21swapper/3312:05:0427
2959899188179,6cyclictest0-21swapper/3312:05:0427
2956799188180,6cyclictest0-21swapper/610:39:5436
2956799188180,6cyclictest0-21swapper/610:39:5436
2956799188180,6cyclictest0-21swapper/610:39:5336
2960799187181,4cyclictest0-21swapper/3909:12:0533
2960799187181,4cyclictest0-21swapper/3909:12:0533
2960799187172,14cyclictest0-21swapper/3910:11:0533
2960799187172,14cyclictest0-21swapper/3910:11:0533
2959899187181,4cyclictest0-21swapper/3310:23:0227
2959899187181,4cyclictest0-21swapper/3310:23:0227
2959899187181,4cyclictest0-21swapper/3310:23:0227
2956299186180,4cyclictest0-21swapper/107:35:321
2956299186180,4cyclictest0-21swapper/107:35:321
2960799185178,4cyclictest0-21swapper/3908:00:0433
2960799185178,4cyclictest0-21swapper/3908:00:0333
2960399185173,10cyclictest0-21swapper/3609:50:4130
2960399185173,10cyclictest0-21swapper/3609:50:4130
2958799185170,9cyclictest171rcu_preempt10:18:1416
2958799185170,9cyclictest171rcu_preempt10:18:1416
2958799185152,18cyclictest0-21swapper/2308:00:3316
2958799185152,18cyclictest0-21swapper/2308:00:3216
2960799184178,4cyclictest0-21swapper/3907:15:3633
2960799184178,4cyclictest0-21swapper/3907:15:3533
2959899184178,4cyclictest0-21swapper/3310:19:0127
2959899184178,4cyclictest0-21swapper/3310:19:0027
2958799184171,7cyclictest171rcu_preempt08:48:2116
2958799184171,7cyclictest171rcu_preempt08:48:2016
2958799184168,8cyclictest171rcu_preempt08:21:1516
2958799184168,8cyclictest171rcu_preempt08:21:1516
2956799184178,3cyclictest0-21swapper/608:24:0336
2956799184178,3cyclictest0-21swapper/608:24:0236
2956799184172,10cyclictest0-21swapper/608:00:2836
2956799184172,10cyclictest0-21swapper/608:00:2736
2956799184158,14cyclictest0-21swapper/609:18:3436
2956799184158,14cyclictest0-21swapper/609:18:3436
2956799184158,14cyclictest0-21swapper/609:18:3436
2960799183175,5cyclictest1392-21gdbus09:36:1933
2960799183175,5cyclictest1392-21gdbus09:36:1833
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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