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2026-05-03 - 14:46
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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 rack1slot3.osadl.org (updated Sun May 03, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59240899140,12cyclictest0-21swapper/310:30:113
59240899140,12cyclictest0-21swapper/307:30:133
592408991311,1cyclictest0-21swapper/308:50:123
592408991310,3cyclictest0-21swapper/309:55:003
592408991310,2cyclictest0-21swapper/307:50:013
592408991211,0cyclictest0-21swapper/307:50:123
59240899121,0cyclictest0-21swapper/312:30:013
59240899120,11cyclictest0-21swapper/311:50:013
59240899120,11cyclictest0-21swapper/310:05:193
59240899120,11cyclictest0-21swapper/309:30:123
59240899120,11cyclictest0-21swapper/309:30:013
592408991110,0cyclictest0-21swapper/310:50:193
59240899110,10cyclictest0-21swapper/311:35:143
59240899110,10cyclictest0-21swapper/308:20:013
59240899110,10cyclictest0-21swapper/307:10:113
59240899110,0cyclictest0-21swapper/308:10:043
59240899109,0cyclictest0-21swapper/308:45:163
59240899109,0cyclictest0-21swapper/307:40:123
59240899108,1cyclictest0-21swapper/311:10:123
592408991010,0cyclictest0-21swapper/312:30:173
592408991010,0cyclictest0-21swapper/311:34:563
592408991010,0cyclictest0-21swapper/309:45:173
592408991010,0cyclictest0-21swapper/307:25:003
59240899100,9cyclictest0-21swapper/312:05:013
59240899100,9cyclictest0-21swapper/309:20:013
59240899100,0cyclictest0-21swapper/312:35:183
59240899100,0cyclictest0-21swapper/311:00:193
59240899100,0cyclictest0-21swapper/309:40:193
59240899100,0cyclictest0-21swapper/307:55:173
5924089999,0cyclictest0-21swapper/312:20:193
5924089999,0cyclictest0-21swapper/311:55:183
5924089999,0cyclictest0-21swapper/310:45:003
5924089999,0cyclictest0-21swapper/308:33:103
5924089998,0cyclictest0-21swapper/308:40:123
5924089990,9cyclictest0-21swapper/311:40:233
5924089990,8cyclictest0-21swapper/311:20:113
5924089990,8cyclictest0-21swapper/310:55:183
5924089990,8cyclictest0-21swapper/310:20:173
5924089990,8cyclictest0-21swapper/310:10:113
5924089990,8cyclictest0-21swapper/308:55:173
5924089990,8cyclictest0-21swapper/308:30:013
5924089990,0cyclictest0-21swapper/312:15:113
590282291,5sleep30-21swapper/307:05:133
5924089988,0cyclictest0-21swapper/310:45:143
5924089988,0cyclictest0-21swapper/310:39:553
5924089988,0cyclictest0-21swapper/310:15:143
5924089988,0cyclictest0-21swapper/307:35:013
5924089980,7cyclictest0-21swapper/309:35:183
5924089980,0cyclictest0-21swapper/307:25:133
5924089977,0cyclictest0-21swapper/312:10:113
5924089977,0cyclictest0-21swapper/311:05:213
5924089977,0cyclictest0-21swapper/308:35:133
590278270,1sleep10-21swapper/107:05:111
5924089966,0cyclictest0-21swapper/312:05:213
5924089966,0cyclictest0-21swapper/311:29:203
5924089966,0cyclictest0-21swapper/311:15:123
5924089966,0cyclictest0-21swapper/309:10:173
5924089966,0cyclictest0-21swapper/309:00:163
5924089966,0cyclictest0-21swapper/308:00:123
5924089961,2cyclictest0-21swapper/309:20:113
591696261,3sleep20-21swapper/207:06:522
5924089955,0cyclictest0-21swapper/308:10:023
5924089950,5cyclictest0-21swapper/310:00:003
5924089950,4cyclictest0-21swapper/307:15:203
630096240,3sleep1630253-21cat08:45:011
5924089944,0cyclictest0-21swapper/310:25:083
5924089944,0cyclictest0-21swapper/310:00:293
5924089944,0cyclictest0-21swapper/309:05:183
5924089940,3cyclictest708486-21chrt11:50:453
5924089940,3cyclictest621811-21chrt08:20:253
602372230,1sleep1602389-21apt-get07:35:011
594954230,1sleep20-21swapper/207:15:132
594233230,2sleep2594244-21latency_hist07:15:002
591000231,1sleep00-21swapper/007:05:190
718005220,1sleep2718116-21/usr/sbin/munin12:15:152
717307220,1sleep01-21systemd12:15:010
712107220,1sleep2712280-21/usr/sbin/munin12:00:182
710911220,0sleep00-21swapper/011:58:530
708715220,0sleep0708719-21ssh11:52:520
697320220,1sleep2697474-21ntp_states11:25:162
695078220,1sleep1695236-21memory11:20:151
694086220,0sleep00-21swapper/011:17:450
690459220,0sleep00-21swapper/011:10:130
684634220,1sleep0684786-21memory10:55:160
683641220,0sleep00-21swapper/010:52:370
681567220,1sleep1682059-21appstreamcli10:50:011
667343220,1sleep0667630-21df10:15:130
645756220,1sleep10-21swapper/109:22:431
642636220,1sleep1642720-21irqstats09:15:161
636794220,1sleep2636876-21irqstats09:00:162
628538220,1sleep2628436-21/usr/sbin/munin08:40:142
623932220,1sleep0623933-21sshd08:28:110
622167220,1sleep20-21swapper/208:25:022
616661220,1sleep2616687-21apt-get08:10:122
608487220,1sleep0608552-21munin-run07:50:010
605532220,1sleep0605684-21ntpq07:40:160
604191220,0sleep00-21swapper/007:35:280
727543210,0sleep00-21swapper/012:35:550
726174210,0sleep10-21swapper/112:35:121
725532210,0sleep20-21swapper/212:31:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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