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2026-08-29 - 11:11
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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 Sat Aug 29, 2026 01:01:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39525992411,221cyclictest0-21swapper/2821:35:0621
39525992411,221cyclictest0-21swapper/2821:35:0621
39525992401,235cyclictest0-21swapper/2800:35:2621
39525992401,235cyclictest0-21swapper/2800:35:2521
39525992401,230cyclictest2466-21CPU21
39525992401,230cyclictest2466-21CPU21
39525992371,233cyclictest0-21swapper/2821:23:1321
39525992371,233cyclictest0-21swapper/2821:23:1321
39525992311,226cyclictest0-21swapper/2822:21:1021
39525992311,226cyclictest0-21swapper/2822:21:0921
39525992281,215cyclictest0-21swapper/2821:26:1821
39525992281,215cyclictest0-21swapper/2821:26:1821
39525992281,215cyclictest0-21swapper/2821:26:1721
39525992251,215cyclictest0-21swapper/2821:51:1721
39525992251,215cyclictest0-21swapper/2821:51:1721
39525992251,215cyclictest0-21swapper/2821:51:1721
39525992251,214cyclictest0-21swapper/2823:35:1921
39525992251,214cyclictest0-21swapper/2823:35:1921
39525992211,2cyclictest0-21swapper/2823:52:5321
39525992211,2cyclictest0-21swapper/2823:52:5321
39525992201,213cyclictest0-21swapper/2822:10:1921
39525992201,213cyclictest0-21swapper/2822:10:1921
39525992161,205cyclictest0-21swapper/2821:10:1821
39525992161,205cyclictest0-21swapper/2821:10:1821
39525992151,207cyclictest0-21swapper/2823:25:0821
39525992151,207cyclictest0-21swapper/2823:25:0821
39525992141,203cyclictest0-21swapper/2822:43:4621
39525992141,203cyclictest0-21swapper/2822:43:4521
39525992141,203cyclictest0-21swapper/2822:43:4521
39525992141,202cyclictest0-21swapper/2822:52:1421
39525992141,202cyclictest0-21swapper/2822:52:1321
39525992131,2cyclictest0-21swapper/2821:46:4521
39525992131,2cyclictest0-21swapper/2821:46:4421
39525992131,206cyclictest0-21swapper/2800:33:4121
39525992131,206cyclictest0-21swapper/2800:33:4121
39525992131,199cyclictest0-21swapper/2823:45:1721
39525992131,199cyclictest0-21swapper/2823:45:1621
39525992131,196cyclictest39209-21systemd00:23:3521
39525992131,196cyclictest39209-21systemd00:23:3421
39525992130,209cyclictest0-21swapper/2822:15:1921
39525992130,209cyclictest0-21swapper/2822:15:1921
39525992121,204cyclictest0-21swapper/2821:16:4221
39525992121,204cyclictest0-21swapper/2821:16:4221
39525992121,202cyclictest1442-21gdbus22:35:1521
39525992121,202cyclictest1442-21gdbus22:35:1521
39525992121,199cyclictest0-21swapper/2820:25:1421
39525992121,199cyclictest0-21swapper/2820:25:1421
39525992112,195cyclictest37351-21CPU21
39525992112,195cyclictest37351-21CPU21
39525992112,195cyclictest37351-21CPU21
39525992110,2cyclictest0-21swapper/2822:45:5321
39525992110,2cyclictest0-21swapper/2822:45:5321
39525992101,192cyclictest0-21swapper/2823:55:1421
39525992101,192cyclictest0-21swapper/2823:55:1321
39525992101,192cyclictest0-21swapper/2823:55:1321
39525992092,198cyclictest0-21swapper/2821:37:2721
39525992092,198cyclictest0-21swapper/2821:37:2721
39525992091,196cyclictest0-21swapper/2800:08:5321
39525992091,196cyclictest0-21swapper/2800:08:5321
39525992090,198cyclictest3406-21sshd23:09:1121
39525992090,198cyclictest3406-21sshd23:09:1121
39525992061,193cyclictest20402-21expr23:40:1621
39525992061,193cyclictest20402-21expr23:40:1621
39525992061,193cyclictest20402-21expr23:40:1521
39525992060,195cyclictest0-21swapper/2822:56:2721
39525992060,195cyclictest0-21swapper/2822:56:2721
39525992051,191cyclictest0-21swapper/2823:24:3621
39525992051,191cyclictest0-21swapper/2823:24:3621
39525992041,193cyclictest0-21swapper/2823:33:3221
39525992041,193cyclictest0-21swapper/2823:33:3221
39525992041,193cyclictest0-21swapper/2823:33:3121
39525992031,193cyclictest19734-21sshd23:02:0721
39525992031,193cyclictest19734-21sshd23:02:0721
39525992030,198cyclictest0-21swapper/2800:01:4921
39525992030,198cyclictest0-21swapper/2800:01:4821
39525992030,198cyclictest0-21swapper/2800:01:4821
39525992030,191cyclictest0-21swapper/2820:20:0221
3949899202154,46cyclictest12617-21kworker/u81:3+events_unbound23:47:3835
3949899202154,46cyclictest12617-21kworker/u81:3+events_unbound23:47:3835
39525992010,196cyclictest0-21swapper/2823:19:3621
39525992010,196cyclictest0-21swapper/2823:19:3621
39525992010,190cyclictest0-21swapper/2800:19:4821
39525992010,190cyclictest0-21swapper/2800:19:4721
39525992010,190cyclictest0-21swapper/2800:19:4721
39525991991,185cyclictest0-21swapper/2800:10:5621
39525991991,185cyclictest0-21swapper/2800:10:5621
39525991990,2cyclictest0-21swapper/2821:05:5821
39525991990,2cyclictest0-21swapper/2821:05:5821
39525991971,189cyclictest0-21swapper/2822:09:3921
39525991971,189cyclictest0-21swapper/2822:09:3921
39525991971,186cyclictest0-21swapper/2820:55:3821
39525991971,186cyclictest0-21swapper/2820:55:3821
39525991970,186cyclictest0-21swapper/2822:25:2321
39525991970,186cyclictest0-21swapper/2822:25:2321
39525991970,185cyclictest0-21swapper/2820:50:4221
39525991970,185cyclictest0-21swapper/2820:50:4121
39525991961,181cyclictest0-21swapper/2820:35:3221
39525991961,181cyclictest0-21swapper/2820:35:3221
3949999196174,19cyclictest0-21swapper/619:50:2036
3949999196174,19cyclictest0-21swapper/619:50:1936
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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