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2026-05-19 - 07:23
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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 rack7slot1.osadl.org (updated Tue May 19, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3271721520,1sleep015191-21stress21:50:100
26760211656,55sleep30-21swapper/319:06:313
26984210650,51sleep00-21swapper/019:09:200
2694829950,44sleep10-21swapper/119:08:541
2703728860,23sleep20-21swapper/219:09:582
278382620,1sleep315193-21stress22:51:383
278382620,1sleep315193-21stress22:51:373
27135994014,23cyclictest0-21swapper/121:18:221
27135994010,27cyclictest0-21swapper/123:45:281
27136993917,19cyclictest0-21swapper/223:29:482
27136993914,22cyclictest0-21swapper/221:26:212
27136993913,23cyclictest0-21swapper/222:10:122
83662385,13sleep20-21swapper/220:51:312
61602385,13sleep20-21swapper/220:45:542
318412385,13sleep20-21swapper/219:15:532
312732385,13sleep30-21swapper/320:30:193
290442385,13sleep20-21swapper/219:12:522
27137993817,19cyclictest0-21swapper/321:55:163
27134993810,25cyclictest0-21swapper/023:59:160
18742385,13sleep20-21swapper/219:23:542
126642385,13sleep20-21swapper/219:48:002
84342375,12sleep20-21swapper/219:38:542
62192375,13sleep30-21swapper/320:46:363
60792375,13sleep30-21swapper/319:31:293
40192375,13sleep20-21swapper/219:28:022
298122375,13sleep30-21swapper/320:26:153
278472375,13sleep30-21swapper/320:23:303
27136993716,18cyclictest0-21swapper/222:31:502
27136993716,18cyclictest0-21swapper/221:37:452
27136993715,20cyclictest0-21swapper/223:10:222
27136993715,20cyclictest0-21swapper/222:46:162
27136993715,19cyclictest0-21swapper/223:42:272
27136993715,19cyclictest0-21swapper/223:42:272
27136993715,19cyclictest0-21swapper/221:46:382
27136993715,19cyclictest0-21swapper/221:46:382
27136993713,21cyclictest0-21swapper/222:35:072
2713599378,26cyclictest0-21swapper/122:38:141
2713599376,21cyclictest0-21swapper/122:03:431
27134993720,15cyclictest0-21swapper/000:04:210
235702375,13sleep30-21swapper/320:14:033
212062375,13sleep00-21swapper/020:06:350
18052375,13sleep30-21swapper/320:36:283
149902375,12sleep20-21swapper/221:08:322
149052375,13sleep30-21swapper/319:54:073
149052375,13sleep30-21swapper/319:54:073
125892375,13sleep00-21swapper/021:00:360
105762375,13sleep20-21swapper/220:57:122
320162365,12sleep30-21swapper/319:17:413
278402365,13sleep10-21swapper/120:23:241
2713799366,27cyclictest0-21swapper/321:20:253
27137993615,19cyclictest0-21swapper/322:00:193
27137993612,21cyclictest0-21swapper/322:27:413
27137993612,21cyclictest0-21swapper/322:27:403
27136993616,17cyclictest0-21swapper/222:23:552
27136993616,17cyclictest0-21swapper/222:23:552
27136993615,18cyclictest0-21swapper/223:55:282
27136993615,18cyclictest0-21swapper/222:41:422
2713599368,25cyclictest0-21swapper/123:40:291
2713599368,25cyclictest0-21swapper/123:40:291
2713599368,25cyclictest0-21swapper/100:19:021
2713599367,26cyclictest0-21swapper/100:10:541
2713599367,26cyclictest0-21swapper/100:10:541
27135993612,21cyclictest0-21swapper/122:45:281
27135993611,22cyclictest0-21swapper/123:10:091
27135993610,23cyclictest0-21swapper/122:52:591
27135993610,23cyclictest0-21swapper/122:52:581
2713499369,24cyclictest0-21swapper/023:39:430
27134993618,15cyclictest0-21swapper/022:13:440
27134993615,18cyclictest0-21swapper/022:26:210
27134993615,18cyclictest0-21swapper/022:26:200
27134993613,20cyclictest0-21swapper/021:10:330
27134993613,20cyclictest0-21swapper/021:10:330
191432365,13sleep00-21swapper/020:02:450
170612365,13sleep20-21swapper/219:58:462
106852360,1sleep115191-21stress22:12:461
84492355,11sleep30-21swapper/320:52:333
299112355,10sleep20-21swapper/220:27:262
27137993515,18cyclictest0-21swapper/322:43:153
27137993513,19cyclictest0-21swapper/323:15:173
27137993513,19cyclictest0-21swapper/322:37:303
27136993516,16cyclictest0-21swapper/221:50:092
27136993515,17cyclictest0-21swapper/222:05:052
27136993513,19cyclictest0-21swapper/222:19:052
27136993513,19cyclictest0-21swapper/222:19:052
2713599358,24cyclictest0-21swapper/121:20:231
2713599357,25cyclictest0-21swapper/123:05:291
2713599357,25cyclictest0-21swapper/122:40:341
2713499358,24cyclictest0-21swapper/023:31:340
2713499358,24cyclictest0-21swapper/023:31:340
2713499358,24cyclictest0-21swapper/023:22:500
27134993518,15cyclictest0-21swapper/019:25:050
27134993510,22cyclictest0-21swapper/023:06:120
236112355,12sleep10-21swapper/120:14:331
235242355,10sleep00-21swapper/020:13:290
192452355,11sleep30-21swapper/320:04:053
128042355,12sleep10-21swapper/121:03:171
83622345,10sleep30-21swapper/319:37:593
61822345,10sleep20-21swapper/219:32:362
42582345,10sleep20-21swapper/220:44:342
300312345,10sleep10-21swapper/120:28:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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