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2026-04-10 - 16:19
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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 Fri Apr 10, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1076921440,1sleep118116-21stress12:38:371
30407211451,20sleep20-21swapper/207:09:152
30111211351,23sleep10-21swapper/107:05:331
3040429847,44sleep00-21swapper/007:09:130
3015128964,20sleep30-21swapper/307:06:033
195202780,1sleep119522-21awk10:25:341
195202780,1sleep119522-21awk10:25:331
30573994515,27cyclictest0-21swapper/009:22:520
30576994117,22cyclictest0-21swapper/312:10:213
30576994117,22cyclictest0-21swapper/312:10:213
30576994015,23cyclictest0-21swapper/311:00:163
93522395,14sleep20-21swapper/207:31:082
3057699392,35cyclictest18116-21stress09:26:343
30576993916,21cyclictest0-21swapper/311:08:253
3057599397,29cyclictest0-21swapper/210:04:342
30574993911,25cyclictest0-21swapper/110:33:411
30573993910,26cyclictest0-21swapper/010:05:550
30573993910,23cyclictest0-21swapper/011:05:340
244922395,14sleep20-21swapper/208:08:052
3057699383,32cyclictest0-21swapper/310:45:193
30576993815,21cyclictest0-21swapper/311:44:213
30576993814,22cyclictest0-21swapper/310:00:323
30576993813,23cyclictest0-21swapper/310:10:133
30575993811,24cyclictest0-21swapper/211:20:352
30575993811,24cyclictest0-21swapper/211:18:342
3057499388,20cyclictest0-21swapper/111:35:061
3057499388,20cyclictest0-21swapper/111:35:061
30573993813,13cyclictest0-21swapper/009:15:340
30573993813,13cyclictest0-21swapper/009:15:340
3057699373,31cyclictest20853-21cat10:30:183
3057699373,31cyclictest18118-21stress12:20:253
30576993718,17cyclictest0-21swapper/312:15:193
30576993718,17cyclictest0-21swapper/312:15:183
30576993716,18cyclictest0-21swapper/309:30:263
30576993715,19cyclictest0-21swapper/312:30:293
30576993715,19cyclictest0-21swapper/311:12:163
3057499376,21cyclictest0-21swapper/110:35:301
3057399379,25cyclictest0-21swapper/009:48:390
3057399379,18cyclictest0-21swapper/008:30:160
30573993715,19cyclictest0-21swapper/009:35:010
30573993711,23cyclictest0-21swapper/009:50:050
285602375,11sleep20-21swapper/208:15:312
203072375,10sleep00-21swapper/007:59:260
117562375,11sleep00-21swapper/007:39:280
74632365,11sleep00-21swapper/007:29:220
72232365,13sleep10-21swapper/107:26:181
69722365,13sleep00-21swapper/008:40:310
49982365,13sleep20-21swapper/207:20:312
325482365,13sleep10-21swapper/107:13:151
3057699363,31cyclictest18116-21stress11:35:183
3057699363,31cyclictest18116-21stress11:35:173
30576993616,18cyclictest0-21swapper/312:25:193
30576993616,18cyclictest0-21swapper/311:25:283
30576993615,18cyclictest0-21swapper/311:55:163
30576993612,21cyclictest0-21swapper/310:50:173
30575993611,22cyclictest0-21swapper/211:46:212
3057399365,19cyclictest0-21swapper/008:20:180
30573993615,18cyclictest0-21swapper/011:14:310
266942364,14sleep20-21swapper/208:13:442
266942364,14sleep20-21swapper/208:13:432
266622365,10sleep00-21swapper/008:13:180
266622365,10sleep00-21swapper/008:13:170
224462364,10sleep20-21swapper/208:04:162
136872365,14sleep00-21swapper/007:41:490
136272364,11sleep20-21swapper/207:41:032
115582365,13sleep20-21swapper/207:36:582
113582365,13sleep20-21swapper/208:51:562
91592355,13sleep10-21swapper/108:46:071
5302355,11sleep10-21swapper/108:26:421
48442355,14sleep10-21swapper/108:35:591
326362354,11sleep20-21swapper/207:14:242
3057699354,29cyclictest0-21swapper/309:17:563
3057699354,29cyclictest0-21swapper/309:17:563
3057699354,28cyclictest18118-21stress11:20:273
3057699353,30cyclictest18116-21stress09:20:243
3057699353,29cyclictest18118-21stress11:45:333
3057699353,29cyclictest18116-21stress09:50:193
3057699353,29cyclictest18087-21/usr/sbin/munin10:25:193
3057699353,29cyclictest18087-21/usr/sbin/munin10:25:183
30576993515,18cyclictest0-21swapper/310:40:343
30576993514,19cyclictest0-21swapper/309:47:043
30575993511,21cyclictest0-21swapper/209:24:032
3057499355,12cyclictest0-21swapper/110:50:111
30574993512,20cyclictest0-21swapper/110:46:561
3057399358,25cyclictest0-21swapper/010:05:010
3057399358,24cyclictest0-21swapper/012:35:210
30573993516,17cyclictest0-21swapper/008:56:170
30573993513,19cyclictest0-21swapper/011:00:310
30573993511,17cyclictest0-21swapper/007:46:480
176792354,10sleep20-21swapper/209:05:272
159722355,11sleep20-21swapper/207:48:322
157862355,13sleep10-21swapper/107:46:151
91722345,13sleep20-21swapper/208:46:152
3057699343,29cyclictest18118-21stress09:35:133
3057699343,29cyclictest18118-21stress09:10:183
3057699343,28cyclictest30904-21taskset08:22:413
3057699343,28cyclictest20633-21/usr/sbin/munin08:00:203
3057699343,28cyclictest18116-21stress11:50:263
3057699343,28cyclictest18116-21stress10:15:143
30576993415,17cyclictest0-21swapper/312:05:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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