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2026-08-29 - 01:29
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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 Fri Aug 28, 2026 13:02:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1107799228204,10cyclictest0-21swapper/3708:20:0231
1107799228204,10cyclictest0-21swapper/3708:20:0131
1107799218203,9cyclictest0-21swapper/3711:31:4131
1107799218203,9cyclictest0-21swapper/3711:31:4031
1107799212195,8cyclictest0-21swapper/3712:23:0331
1107799212195,8cyclictest0-21swapper/3712:23:0231
1107799211201,5cyclictest0-21swapper/3710:25:1631
1107799211201,5cyclictest0-21swapper/3710:25:1631
1107799211201,5cyclictest0-21swapper/3710:25:1531
1107799211189,18cyclictest0-21swapper/3711:45:1631
1107799211189,18cyclictest0-21swapper/3711:45:1631
1103599211208,2cyclictest0-21swapper/212:15:2312
1103599211208,2cyclictest0-21swapper/212:15:2212
1107799210201,5cyclictest0-21swapper/3712:29:2431
1107799210201,5cyclictest0-21swapper/3712:29:2331
1107799208202,4cyclictest0-21swapper/3707:25:2231
1107799208202,4cyclictest0-21swapper/3707:25:2231
1107799208200,5cyclictest37346-21qemu-system-x8609:21:2431
1107799208200,5cyclictest37346-21qemu-system-x8609:21:2331
1107999206191,8cyclictest17347-21kworker/u82:0+events_unbound10:25:3633
1107999206191,8cyclictest17347-21kworker/u82:0+events_unbound10:25:3633
1107999206191,8cyclictest17347-21kworker/u82:0+events_unbound10:25:3633
1107799206197,6cyclictest0-21swapper/3711:15:0131
1107799206197,6cyclictest0-21swapper/3711:15:0131
1107799206197,6cyclictest0-21swapper/3711:15:0131
1107799205199,4cyclictest18404-21sshd12:00:2631
1107799205199,4cyclictest18404-21sshd12:00:2531
1107799205199,4cyclictest17483-21nfsd08:30:1431
1107799205199,4cyclictest17483-21nfsd08:30:1431
1107799205199,4cyclictest0-21swapper/3712:31:5631
1107799205199,4cyclictest0-21swapper/3712:31:5531
1107799204197,5cyclictest0-21swapper/3709:55:1931
1107799204197,5cyclictest0-21swapper/3709:55:1931
1107799203194,7cyclictest0-21swapper/3712:17:2631
1107799203194,7cyclictest0-21swapper/3712:17:2531
1107799202196,4cyclictest0-21swapper/3708:50:5131
1107799202196,4cyclictest0-21swapper/3708:50:5131
11040992021,92cyclictest0-21swapper/712:15:1937
11040992021,92cyclictest0-21swapper/712:15:1837
1107799199191,6cyclictest0-21swapper/3711:29:0731
1107799199191,6cyclictest0-21swapper/3711:29:0631
1107799198193,4cyclictest0-21swapper/3709:12:1931
1107799198193,4cyclictest0-21swapper/3709:12:1931
1107799197189,5cyclictest2447-21CPU31
1107799197189,5cyclictest2447-21CPU31
1107799197188,6cyclictest0-21swapper/3710:30:2131
1107799197188,6cyclictest0-21swapper/3710:30:2131
1107799197188,6cyclictest0-21swapper/3710:30:2131
1107799197188,6cyclictest0-21swapper/3710:09:1031
1107799197188,6cyclictest0-21swapper/3710:09:0931
1107799197187,8cyclictest0-21swapper/3710:50:1731
1107799197187,8cyclictest0-21swapper/3710:50:1631
1107799196184,10cyclictest0-21swapper/3709:44:1531
1107799196184,10cyclictest0-21swapper/3709:44:1531
1106099195167,25cyclictest0-21swapper/2410:32:5417
1106099195167,25cyclictest0-21swapper/2410:32:5417
1106099195167,25cyclictest0-21swapper/2410:32:5317
1103599195191,2cyclictest0-21swapper/207:25:1512
1103599195191,2cyclictest0-21swapper/207:25:1412
1107799193185,6cyclictest0-21swapper/3711:55:1931
1107799193185,6cyclictest0-21swapper/3711:55:1931
1107799193185,6cyclictest0-21swapper/3711:55:1831
1106799193175,8cyclictest5629-21missed_timers12:20:2624
1106799193175,8cyclictest5629-21missed_timers12:20:2624
1106399193188,3cyclictest0-21swapper/2708:30:2420
1106399193188,3cyclictest0-21swapper/2708:30:2320
1107799192184,6cyclictest0-21swapper/3710:19:0631
1107799192184,6cyclictest0-21swapper/3710:19:0631
1107799192184,6cyclictest0-21swapper/3710:19:0531
1107799192184,6cyclictest0-21swapper/3709:49:4731
1107799192184,6cyclictest0-21swapper/3709:49:4631
1107799192184,5cyclictest0-21swapper/3712:12:3131
1107799192184,5cyclictest0-21swapper/3712:12:3031
1107799192183,7cyclictest0-21swapper/3710:00:4331
1107799192183,7cyclictest0-21swapper/3710:00:4231
1107799192183,7cyclictest0-21swapper/3710:00:4231
1107799192183,6cyclictest0-21swapper/3711:05:1731
1107799192183,6cyclictest0-21swapper/3711:05:1631
1107799192183,5cyclictest0-21swapper/3710:23:0931
1107799192183,5cyclictest0-21swapper/3710:23:0931
1107799192176,12cyclictest0-21swapper/3712:35:1731
1107799192176,12cyclictest0-21swapper/3712:35:1731
11040991921,179cyclictest0-21swapper/712:10:0037
11040991921,179cyclictest0-21swapper/712:10:0037
1103399192161,23cyclictest0-21swapper/011:11:440
1103399192161,23cyclictest0-21swapper/011:11:430
1103399192161,23cyclictest0-21swapper/011:11:430
11033991911,187cyclictest0-21swapper/012:10:150
11033991911,187cyclictest0-21swapper/012:10:140
1107799190183,5cyclictest0-21swapper/3710:43:0831
1107799190183,5cyclictest0-21swapper/3710:43:0831
1107799190181,7cyclictest0-21swapper/3710:38:3731
1107799190181,7cyclictest0-21swapper/3710:38:3631
1107799190181,7cyclictest0-21swapper/3710:38:3631
1107799189182,4cyclictest0-21swapper/3709:15:1531
1107799189182,4cyclictest0-21swapper/3709:15:1531
1107799189180,7cyclictest0-21swapper/3710:13:2231
1107799189180,7cyclictest0-21swapper/3710:13:2231
1104399189167,20cyclictest0-21swapper/908:53:5939
1104399189167,20cyclictest0-21swapper/908:53:5939
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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