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2026-03-12 - 11:26
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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 50 highest latencies:
System rack3slot0.osadl.org (updated Thu Mar 12, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8592750,0sleep70-21swapper/721:23:087
289182740,0sleep00-21swapper/021:21:080
64682530,0sleep40-21swapper/423:20:304
209722510,0sleep20-21swapper/222:52:012
122762510,1sleep125-21ksoftirqd/123:57:271
90722500,0sleep60-21swapper/622:27:306
40002500,1sleep4686-21dbus-daemon22:25:284
179292500,0sleep40-21swapper/422:57:164
1007224925,8sleep00-21swapper/019:02:560
98292480,1sleep09834-21grepconf.sh21:32:460
1006824825,8sleep50-21swapper/519:02:535
137572470,0sleep213746-21sshd21:14:462
1027024725,18sleep60-21swapper/619:05:436
90542460,1sleep79051-21grepconf.sh23:59:107
87512460,1sleep68752-21grep22:01:596
159822460,1sleep449-21ksoftirqd/400:12:204
157712450,2sleep11049899cyclictest22:07:471
6362440,0sleep30-21swapper/322:36:163
322082440,0sleep40-21swapper/421:26:494
255132440,0sleep40-21swapper/423:50:584
226762440,0sleep10-21swapper/122:46:391
215192440,0sleep70-21swapper/700:25:377
176902440,0sleep60-21swapper/600:03:176
68272430,0sleep10-21swapper/122:38:221
299102430,0sleep30-21swapper/321:32:093
119512430,0sleep50-21swapper/522:55:085
137232420,0sleep013722-21sshd21:08:590
76632410,0sleep40-21swapper/400:04:354
299572410,0sleep30-21swapper/322:54:183
29152410,0sleep10-21swapper/123:23:561
96452400,1sleep449-21ksoftirqd/422:45:544
59632400,0sleep30-21swapper/323:38:473
326042400,0sleep70-21swapper/700:29:537
322552400,0sleep10-21swapper/122:06:591
260492400,0sleep30-21swapper/321:50:113
187602400,0sleep00-21swapper/021:46:070
155542400,0sleep40-21swapper/423:22:464
11842400,0sleep20-21swapper/221:34:082
117102400,2sleep11049899cyclictest23:29:561
101902400,0sleep30-21swapper/323:59:143
1010124029,8sleep70-21swapper/719:03:197
1004924028,9sleep40-21swapper/419:02:364
154932390,0sleep30-21swapper/300:14:113
1027523928,8sleep20-21swapper/219:05:472
1007523926,9sleep30-21swapper/319:02:593
1006423926,9sleep10-21swapper/119:02:491
56262380,0sleep40-21swapper/423:16:464
13892370,2sleep01049199cyclictest23:49:340
204322360,0sleep70-21swapper/723:08:247
39232350,0sleep50-21swapper/522:29:055
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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