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2026-05-04 - 20:01
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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 Mon May 04, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
438180991810,6cyclictest0-21swapper/312:00:103
43818099140,12cyclictest0-21swapper/309:45:133
43818099140,11cyclictest0-21swapper/311:20:133
43818099130,12cyclictest0-21swapper/311:05:143
43818099130,12cyclictest0-21swapper/309:05:133
43818099128,0cyclictest0-21swapper/309:15:123
43818099120,8cyclictest0-21swapper/310:10:123
43818099120,1cyclictest0-21swapper/309:15:013
43818099120,1cyclictest0-21swapper/307:30:113
43818099120,11cyclictest0-21swapper/307:15:013
43818099119,1cyclictest0-21swapper/311:00:123
438180991110,0cyclictest0-21swapper/309:25:113
438180991110,0cyclictest0-21swapper/307:35:143
43818099110,10cyclictest0-21swapper/311:55:133
43818099110,10cyclictest0-21swapper/309:39:233
43818099110,0cyclictest0-21swapper/311:50:133
43818099110,0cyclictest0-21swapper/308:30:123
43818099110,0cyclictest0-21swapper/308:20:123
43818099110,0cyclictest0-21swapper/307:25:123
43818099109,0cyclictest0-21swapper/311:48:233
43818099109,0cyclictest0-21swapper/311:10:123
43818099109,0cyclictest0-21swapper/310:35:113
43818099109,0cyclictest0-21swapper/309:50:143
438180991010,0cyclictest0-21swapper/312:30:133
438180991010,0cyclictest0-21swapper/312:25:133
438180991010,0cyclictest0-21swapper/310:51:573
43818099100,9cyclictest0-21swapper/310:55:173
43818099100,9cyclictest0-21swapper/309:20:123
43818099100,9cyclictest0-21swapper/308:50:153
43818099100,0cyclictest0-21swapper/310:20:123
43818099100,0cyclictest0-21swapper/308:40:133
4381809999,0cyclictest0-21swapper/310:45:153
4381809999,0cyclictest0-21swapper/310:45:143
4381809999,0cyclictest0-21swapper/309:00:013
4381809999,0cyclictest0-21swapper/308:35:113
4381809999,0cyclictest0-21swapper/307:15:003
4381809998,0cyclictest0-21swapper/310:30:183
4381809990,9cyclictest0-21swapper/311:25:113
4381809990,8cyclictest0-21swapper/308:15:193
4381809990,8cyclictest0-21swapper/307:45:173
4381809988,0cyclictest0-21swapper/312:15:123
4381809988,0cyclictest0-21swapper/310:40:133
4381809988,0cyclictest0-21swapper/310:25:133
4381809988,0cyclictest0-21swapper/310:15:133
4381809988,0cyclictest0-21swapper/309:59:263
4381809988,0cyclictest0-21swapper/307:40:163
4381809987,0cyclictest0-21swapper/307:20:153
4381809980,7cyclictest0-21swapper/310:00:183
4381809980,0cyclictest0-21swapper/308:05:193
436248281,4sleep30-21swapper/307:05:123
4381809977,0cyclictest0-21swapper/312:10:013
4381809977,0cyclictest0-21swapper/311:42:593
4381809977,0cyclictest0-21swapper/311:39:323
4381809977,0cyclictest0-21swapper/309:34:553
4381809977,0cyclictest0-21swapper/307:50:163
4381809976,0cyclictest0-21swapper/312:23:043
4381809975,1cyclictest0-21swapper/312:05:113
4381809970,6cyclictest0-21swapper/310:05:113
4381809966,0cyclictest0-21swapper/309:40:153
4381809960,0cyclictest0-21swapper/312:35:193
437178262,2sleep2437329-21sort07:05:192
4381809955,0cyclictest0-21swapper/311:18:233
4381809955,0cyclictest0-21swapper/309:00:113
4381809955,0cyclictest0-21swapper/308:00:123
4381809950,4cyclictest0-21swapper/311:34:243
4381809950,0cyclictest0-21swapper/308:45:203
444954240,2sleep0444980-21apt-get07:25:120
439087240,3sleep2439234-21/usr/sbin/munin07:10:172
4381809940,3cyclictest468736-21chrt08:25:123
4381809940,2cyclictest0-21swapper/308:10:123
4381809940,2cyclictest0-21swapper/307:55:103
436413241,1sleep10-21swapper/107:05:141
565237230,1sleep2565263-21apt-get12:20:112
561948230,2sleep2562114-21timerandwakeup12:10:192
522981230,1sleep1523007-21apt-get10:40:121
520879231,0sleep1520905-21apt-get10:35:111
513297230,2sleep0513389-21ps10:15:170
491599230,1sleep1491625-21apt-get09:25:121
477889230,1sleep1477915-21apt-get08:50:091
436244231,1sleep00-21swapper/007:05:090
572926220,0sleep00-21swapper/012:36:340
570717222,0sleep1351ktimers/112:30:271
566994220,0sleep10-21swapper/112:24:221
560541220,0sleep0560560-21apt-get12:10:010
560517220,0sleep20-21swapper/212:09:502
560056220,0sleep00-21swapper/012:05:400
547345220,1sleep10-21swapper/111:36:241
541018220,1sleep00-21swapper/011:20:380
529256220,1sleep1529375-21aten2.4-expect10:55:141
527138220,0sleep00-21swapper/010:50:070
526449220,0sleep00-21swapper/010:46:040
526449220,0sleep00-21swapper/010:46:030
526357220,1sleep2526369-21ssh10:45:222
526357220,1sleep2526369-21ssh10:45:212
516900221,0sleep0171ktimers/010:25:140
511385220,1sleep2511591-21wc10:10:192
506378220,1sleep1506580-21sort10:00:131
503381220,0sleep00-21swapper/009:52:250
497166220,1sleep20-21swapper/209:37:542
493748220,1sleep2494016-21df09:30:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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