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2026-06-16 - 06:58
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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 Jun 16, 2026 00:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3783211959,55sleep30-21swapper/319:07:223
3683211050,55sleep10-21swapper/119:06:071
391729746,47sleep00-21swapper/019:09:010
389828864,20sleep20-21swapper/219:08:462
35052520,1sleep324847-21stress22:48:343
35052520,1sleep324847-21stress22:48:343
4108994610,33cyclictest0-21swapper/022:43:560
4108994610,33cyclictest0-21swapper/022:43:560
4108994415,26cyclictest0-21swapper/022:12:110
4111994321,19cyclictest0-21swapper/322:58:453
81472422,26sleep224847-21stress00:13:302
411199423,36cyclictest24849-21stress00:20:133
410899428,31cyclictest0-21swapper/022:20:100
4110994110,14cyclictest0-21swapper/223:05:452
4108994112,26cyclictest0-21swapper/000:04:010
411199405,32cyclictest24849-21stress21:35:123
411199403,35cyclictest0-21swapper/322:20:273
4111994020,17cyclictest0-21swapper/321:29:173
4111994019,19cyclictest0-21swapper/323:30:293
410899405,22cyclictest0-21swapper/023:15:210
410899405,22cyclictest0-21swapper/023:15:210
4108994010,27cyclictest0-21swapper/023:24:510
411199393,33cyclictest0-21swapper/322:15:213
411199393,33cyclictest0-21swapper/322:15:213
4111993921,15cyclictest0-21swapper/322:00:523
4111993920,17cyclictest0-21swapper/321:40:203
4111993918,19cyclictest0-21swapper/322:05:273
4111993918,19cyclictest0-21swapper/322:05:263
4111993918,18cyclictest0-21swapper/323:10:293
4111993918,18cyclictest0-21swapper/323:10:283
4108993912,24cyclictest0-21swapper/023:45:180
4108993910,26cyclictest0-21swapper/022:30:270
411199386,29cyclictest24849-21stress21:21:293
411199383,32cyclictest26009-21/usr/sbin/munin19:55:243
411199383,32cyclictest24849-21stress21:10:523
411199382,3cyclictest24849-21stress21:31:043
411199382,3cyclictest24849-21stress21:31:033
411199382,34cyclictest24849-21stress23:55:153
411199382,34cyclictest24849-21stress23:55:153
410899387,24cyclictest0-21swapper/023:30:050
85602375,11sleep20-21swapper/219:15:232
411199377,27cyclictest24851-21iperf21:15:153
411199376,29cyclictest24847-21stress00:30:233
411199375,29cyclictest24849-21stress22:35:353
411199373,32cyclictest24849-21stress22:32:273
411199373,32cyclictest24849-21stress00:15:423
411199373,32cyclictest24847-21stress00:36:383
411199373,31cyclictest24847-21stress23:50:193
411199373,31cyclictest0-21swapper/323:20:263
411199373,17cyclictest0-21swapper/319:30:133
411199372,33cyclictest24849-21stress00:10:353
4110993710,24cyclictest0-21swapper/222:25:302
4109993715,19cyclictest0-21swapper/122:55:201
4108993715,20cyclictest0-21swapper/000:05:100
4108993714,21cyclictest0-21swapper/022:46:100
4108993714,21cyclictest0-21swapper/022:46:090
4108993712,22cyclictest0-21swapper/023:40:450
4108993711,23cyclictest0-21swapper/021:20:120
4108993711,23cyclictest0-21swapper/000:35:120
4108993710,24cyclictest0-21swapper/023:25:350
4108993710,24cyclictest0-21swapper/023:25:340
243902375,14sleep10-21swapper/119:54:571
71782365,15sleep20-21swapper/220:27:172
49592365,15sleep20-21swapper/220:22:122
411199366,27cyclictest24849-21stress23:00:333
411199364,29cyclictest0-21swapper/323:40:313
411199363,30cyclictest24849-21stress00:00:053
411199363,18cyclictest0-21swapper/319:15:223
411199363,17cyclictest0-21swapper/321:00:523
411199363,17cyclictest0-21swapper/320:45:213
411199363,17cyclictest0-21swapper/320:30:203
411199363,14cyclictest0-21swapper/320:17:413
411199362,31cyclictest24849-21stress23:25:513
411199362,31cyclictest24849-21stress23:25:503
411199362,31cyclictest24849-21stress21:50:143
411199362,31cyclictest24849-21stress21:50:143
411199362,31cyclictest24847-21stress23:35:283
411199362,31cyclictest24847-21stress23:16:513
411199362,31cyclictest24847-21stress23:16:503
411099367,26cyclictest0-21swapper/223:14:152
411099367,26cyclictest0-21swapper/223:14:142
4110993611,22cyclictest0-21swapper/223:29:102
4110993611,22cyclictest0-21swapper/223:29:092
410899365,24cyclictest0-21swapper/020:15:230
410899365,24cyclictest0-21swapper/019:15:150
4108993617,17cyclictest0-21swapper/021:15:080
4108993612,21cyclictest0-21swapper/022:15:030
4108993612,21cyclictest0-21swapper/022:15:020
4108993612,21cyclictest0-21swapper/021:43:180
4108993612,21cyclictest0-21swapper/000:30:060
4108993610,12cyclictest0-21swapper/023:01:290
411199359,23cyclictest0-21swapper/319:40:153
411199358,25cyclictest24849-21stress23:05:173
411199357,26cyclictest24851-21iperf00:06:263
411199355,27cyclictest24847-21stress00:25:153
411199354,28cyclictest24849-21stress22:25:563
411199354,16cyclictest0-21swapper/321:06:513
411199353,30cyclictest24849-21stress22:40:063
411199353,30cyclictest24849-21stress22:40:063
411199353,17cyclictest0-21swapper/320:55:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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