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2026-04-24 - 14:44
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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 rack1slot1.osadl.org (updated Fri Apr 24, 2026 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
190452204166,24sleep20-21swapper/207:07:182
191682201162,26sleep10-21swapper/107:08:551
190062201157,31sleep30-21swapper/307:06:463
190132199161,24sleep00-21swapper/007:06:520
317782720,0sleep10-21swapper/108:40:161
289422710,0sleep20-21swapper/211:36:482
16702600,0sleep30-21swapper/312:26:073
300042190,0sleep10-21swapper/112:20:201
19382991918,1cyclictest35-21ksoftirqd/311:55:163
1938299188,7cyclictest35-21ksoftirqd/311:20:153
19382991818,0cyclictest35-21ksoftirqd/312:35:123
19382991818,0cyclictest35-21ksoftirqd/308:15:173
19382991716,1cyclictest35-21ksoftirqd/309:46:203
19382991616,0cyclictest35-21ksoftirqd/311:36:503
19382991616,0cyclictest35-21ksoftirqd/311:10:123
19382991616,0cyclictest35-21ksoftirqd/309:05:203
19382991616,0cyclictest35-21ksoftirqd/308:40:173
19382991615,1cyclictest35-21ksoftirqd/311:25:203
19371991615,1cyclictest28-21ksoftirqd/211:28:052
19371991612,3cyclictest116091/usr/sbin/munin08:00:172
19382991515,0cyclictest35-21ksoftirqd/310:55:183
19382991514,1cyclictest35-21ksoftirqd/311:17:353
1938299146,0cyclictest35-21ksoftirqd/309:40:113
19382991414,0cyclictest35-21ksoftirqd/310:14:103
19382991410,3cyclictest35-21ksoftirqd/310:09:223
1936099140,13cyclictest0-21swapper/108:00:111
297802130,0sleep20-21swapper/210:14:062
19382991313,0cyclictest35-21ksoftirqd/312:10:303
19382991313,0cyclictest35-21ksoftirqd/311:44:163
19382991313,0cyclictest35-21ksoftirqd/310:43:243
19382991313,0cyclictest35-21ksoftirqd/310:22:573
19382991313,0cyclictest35-21ksoftirqd/309:55:123
19382991313,0cyclictest35-21ksoftirqd/308:53:423
19382991313,0cyclictest35-21ksoftirqd/308:30:163
19382991311,1cyclictest35-21ksoftirqd/311:50:013
19382991311,1cyclictest35-21ksoftirqd/309:15:003
19382991311,1cyclictest35-21ksoftirqd/307:55:003
19371991311,1cyclictest28-21ksoftirqd/208:55:122
1938299129,1cyclictest35-21ksoftirqd/312:34:593
1938299126,4cyclictest35-21ksoftirqd/310:39:343
19382991212,0cyclictest35-21ksoftirqd/309:38:023
19382991212,0cyclictest35-21ksoftirqd/309:25:513
19382991212,0cyclictest35-21ksoftirqd/309:16:593
19382991211,1cyclictest35-21ksoftirqd/312:10:013
19382991211,1cyclictest35-21ksoftirqd/311:34:593
19382991211,1cyclictest35-21ksoftirqd/309:33:213
19382991211,1cyclictest35-21ksoftirqd/308:49:593
19382991210,1cyclictest35-21ksoftirqd/312:15:123
19382991210,1cyclictest35-21ksoftirqd/311:00:123
19382991210,1cyclictest35-21ksoftirqd/310:25:093
19382991210,1cyclictest35-21ksoftirqd/310:15:133
19382991210,1cyclictest35-21ksoftirqd/308:10:003
19382991210,1cyclictest35-21ksoftirqd/307:49:593
19382991210,1cyclictest35-21ksoftirqd/307:25:123
1934999123,4cyclictest28003-21perf12:20:010
1934999123,4cyclictest12231-21perf09:10:000
19349991211,1cyclictest9-21ksoftirqd/011:40:000
1938299119,1cyclictest35-21ksoftirqd/311:05:153
1938299119,1cyclictest35-21ksoftirqd/310:34:593
1938299119,1cyclictest35-21ksoftirqd/310:00:113
1938299119,1cyclictest35-21ksoftirqd/309:50:143
1938299119,1cyclictest35-21ksoftirqd/308:20:133
1938299119,1cyclictest35-21ksoftirqd/308:10:023
1938299119,1cyclictest35-21ksoftirqd/308:00:133
1938299119,1cyclictest35-21ksoftirqd/307:40:183
1938299119,1cyclictest35-21ksoftirqd/307:35:143
19382991111,0cyclictest35-21ksoftirqd/309:20:113
19382991111,0cyclictest35-21ksoftirqd/307:18:303
19382991110,1cyclictest35-21ksoftirqd/312:20:133
19382991110,1cyclictest35-21ksoftirqd/312:00:163
19382991110,1cyclictest35-21ksoftirqd/310:50:163
19382991110,1cyclictest35-21ksoftirqd/310:45:183
1937199119,1cyclictest28-21ksoftirqd/207:15:142
19371991110,1cyclictest28-21ksoftirqd/212:35:112
19371991110,1cyclictest28-21ksoftirqd/212:03:232
19371991110,1cyclictest28-21ksoftirqd/210:56:222
19371991110,1cyclictest28-21ksoftirqd/210:20:122
19371991110,1cyclictest28-21ksoftirqd/207:35:102
1934999112,4cyclictest10698-21perf12:39:590
19349991110,1cyclictest9-21ksoftirqd/010:15:010
1938299109,1cyclictest35-21ksoftirqd/308:39:593
1938299109,1cyclictest35-21ksoftirqd/307:20:143
1938299108,1cyclictest35-21ksoftirqd/309:00:103
1938299108,1cyclictest35-21ksoftirqd/308:55:123
1938299108,1cyclictest35-21ksoftirqd/308:25:153
1938299108,1cyclictest35-21ksoftirqd/307:55:013
1938299108,1cyclictest35-21ksoftirqd/307:30:203
19382991010,0cyclictest35-21ksoftirqd/311:50:113
19382991010,0cyclictest35-21ksoftirqd/307:10:103
1937199109,1cyclictest28-21ksoftirqd/212:15:102
1937199109,1cyclictest28-21ksoftirqd/212:10:122
1937199109,1cyclictest28-21ksoftirqd/211:30:182
1937199109,1cyclictest28-21ksoftirqd/209:46:482
1937199109,1cyclictest28-21ksoftirqd/209:35:252
1937199109,1cyclictest28-21ksoftirqd/209:25:172
1937199108,1cyclictest28-21ksoftirqd/209:20:162
1937199108,1cyclictest28-21ksoftirqd/208:15:172
1937199108,1cyclictest28-21ksoftirqd/207:50:002
1937199108,1cyclictest225791ssh10:05:002
1937199108,1cyclictest18647-21sh09:59:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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