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2026-05-01 - 21:54
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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 Fri May 01, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74949899121,0cyclictest0-21swapper/312:15:103
74949899120,11cyclictest0-21swapper/312:35:123
74949899120,11cyclictest0-21swapper/312:25:123
74949899120,11cyclictest0-21swapper/311:05:173
74949899120,11cyclictest0-21swapper/310:10:013
74949899120,11cyclictest0-21swapper/308:10:113
749498991111,0cyclictest0-21swapper/311:55:183
749498991111,0cyclictest0-21swapper/310:00:103
749498991110,0cyclictest0-21swapper/311:05:013
749498991110,0cyclictest0-21swapper/308:20:123
74949899110,10cyclictest0-21swapper/312:30:173
74949899110,10cyclictest0-21swapper/311:45:133
74949899110,10cyclictest0-21swapper/308:45:183
74949899110,10cyclictest0-21swapper/308:25:173
74949899110,0cyclictest0-21swapper/309:00:133
74949899109,0cyclictest0-21swapper/312:10:163
74949899109,0cyclictest0-21swapper/311:30:093
74949899109,0cyclictest0-21swapper/311:20:163
74949899109,0cyclictest0-21swapper/310:20:173
74949899109,0cyclictest0-21swapper/309:24:293
749498991010,0cyclictest0-21swapper/312:00:113
74949899100,9cyclictest0-21swapper/310:50:163
74949899100,8cyclictest0-21swapper/312:05:133
74949899100,0cyclictest0-21swapper/310:55:113
74949899100,0cyclictest0-21swapper/309:10:003
74949899100,0cyclictest0-21swapper/308:35:183
74949899100,0cyclictest0-21swapper/308:00:163
7494989999,0cyclictest0-21swapper/312:25:023
7494989999,0cyclictest0-21swapper/310:44:353
7494989999,0cyclictest0-21swapper/310:25:163
7494989999,0cyclictest0-21swapper/310:10:163
7494989999,0cyclictest0-21swapper/307:30:023
7494989999,0cyclictest0-21swapper/307:20:123
7494989999,0cyclictest0-21swapper/307:19:563
7494989998,0cyclictest0-21swapper/309:55:113
7494989998,0cyclictest0-21swapper/308:40:113
7494989997,1cyclictest0-21swapper/307:50:123
7494989988,0cyclictest0-21swapper/311:40:013
7494989988,0cyclictest0-21swapper/308:10:013
7494989980,0cyclictest0-21swapper/310:35:013
747710281,5sleep30-21swapper/307:05:123
7494989977,0cyclictest0-21swapper/309:45:123
7494989977,0cyclictest0-21swapper/309:40:163
7494989977,0cyclictest0-21swapper/309:27:093
7494989977,0cyclictest0-21swapper/308:50:133
7494989976,0cyclictest0-21swapper/309:50:103
7494989976,0cyclictest0-21swapper/309:35:123
7494989976,0cyclictest0-21swapper/309:30:133
7494989976,0cyclictest0-21swapper/309:10:173
7494989970,7cyclictest0-21swapper/307:30:013
7494989970,0cyclictest0-21swapper/307:35:163
748998270,1sleep10-21swapper/107:05:311
7494989966,0cyclictest0-21swapper/311:40:123
7494989966,0cyclictest0-21swapper/311:27:203
7494989966,0cyclictest0-21swapper/311:16:363
7494989966,0cyclictest0-21swapper/311:10:163
7494989965,0cyclictest0-21swapper/308:55:103
7494989960,0cyclictest0-21swapper/309:20:013
7494989955,0cyclictest0-21swapper/311:53:563
7494989955,0cyclictest0-21swapper/310:36:013
7494989955,0cyclictest0-21swapper/308:34:523
7494989955,0cyclictest0-21swapper/308:15:153
7494989954,0cyclictest0-21swapper/310:16:173
748692251,2sleep20-21swapper/207:05:202
823606240,3sleep0823732-21cpu10:15:120
7494989944,0cyclictest0-21swapper/310:45:063
7494989944,0cyclictest0-21swapper/307:55:123
7494989944,0cyclictest0-21swapper/307:10:173
7494989940,4cyclictest0-21swapper/307:40:573
7494989940,3cyclictest764750-21chrt07:45:173
747179240,2sleep0747674-21apt-get07:05:020
850685231,1sleep0171ktimers/011:20:020
770102230,2sleep2769660-21/usr/sbin/munin08:00:142
880138220,1sleep0880141-21sh12:27:140
874901220,1sleep2875054-21memory12:15:142
867416220,0sleep00-21swapper/011:55:360
865575220,1sleep2865635-21munin-run11:55:012
852477220,0sleep00-21swapper/011:22:170
844782220,1sleep1845022-21tr11:05:131
841058220,1sleep0841250-21/usr/sbin/munin10:55:150
840081220,0sleep00-21swapper/010:53:320
832654220,1sleep2832786-21ps10:35:172
818688220,0sleep00-21swapper/010:01:040
814949220,1sleep1815174-21latency_hist09:55:001
806863220,0sleep10-21swapper/109:35:111
805434220,1sleep2805584-21ntp_states09:30:172
802802220,2sleep1802835-21aten_r1power_cu09:25:111
802484220,0sleep00-21swapper/009:24:290
796738220,1sleep20-21swapper/209:10:102
779914220,1sleep2780022-21/usr/sbin/munin08:25:162
779235220,1sleep1779261-21apt-get08:25:121
771324220,1sleep0771358-21munin-run08:05:010
750152220,1sleep2750272-21memory07:10:152
749790220,1sleep00-21swapper/007:10:130
884533210,1sleep20-21swapper/212:39:172
883259210,0sleep10-21swapper/112:35:151
880897210,0sleep00-21swapper/012:30:130
878107210,0sleep10-21swapper/112:22:421
877844210,0sleep00-21swapper/012:20:210
875962210,0sleep10-21swapper/112:17:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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