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2026-08-15 - 01:30
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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 Aug 14, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8877212359,59sleep20-21swapper/207:06:332
8866212057,58sleep10-21swapper/107:06:241
9134211452,57sleep00-21swapper/007:09:280
509421140,1sleep330818-21stress11:50:153
509421140,1sleep330818-21stress11:50:153
2316921130,1sleep030818-21stress12:30:230
909229545,19sleep30-21swapper/307:08:553
3272560,1sleep130818-21stress09:12:281
927899505,24cyclictest0-21swapper/311:35:203
927899499,20cyclictest0-21swapper/309:35:003
927899496,22cyclictest0-21swapper/311:21:023
9278994911,16cyclictest0-21swapper/310:40:023
927899489,17cyclictest0-21swapper/311:45:143
9278994814,12cyclictest0-21swapper/309:19:403
9278994813,14cyclictest0-21swapper/310:05:193
927899476,21cyclictest0-21swapper/312:27:353
9278994714,14cyclictest0-21swapper/310:40:173
9278994714,12cyclictest0-21swapper/311:40:183
9278994714,12cyclictest0-21swapper/311:40:183
9278994710,19cyclictest0-21swapper/309:21:113
927899469,16cyclictest0-21swapper/312:15:143
927899466,20cyclictest0-21swapper/312:30:183
9278994612,15cyclictest0-21swapper/312:35:163
927899448,18cyclictest0-21swapper/310:15:213
927899446,19cyclictest0-21swapper/311:26:573
9278994415,12cyclictest0-21swapper/310:00:363
9278994410,16cyclictest0-21swapper/311:30:353
9278994315,11cyclictest0-21swapper/309:55:523
9278994214,12cyclictest0-21swapper/311:57:593
16902420,2sleep330819-21iperf10:30:123
9277994112,26cyclictest0-21swapper/211:52:552
9277994112,26cyclictest0-21swapper/211:52:542
9277994110,28cyclictest0-21swapper/210:07:582
9275994112,18cyclictest0-21swapper/009:45:320
9275994111,20cyclictest0-21swapper/010:35:320
927699407,14cyclictest0-21swapper/110:46:331
136302400,1sleep030814-21stress09:41:570
292992395,13sleep20-21swapper/209:05:152
282222395,14sleep20-21swapper/209:01:542
9277993815,20cyclictest0-21swapper/212:07:052
9276993820,16cyclictest0-21swapper/111:43:151
9276993820,16cyclictest0-21swapper/111:43:151
9275993814,21cyclictest0-21swapper/010:15:340
927799379,25cyclictest0-21swapper/210:21:362
927799379,25cyclictest0-21swapper/209:15:042
9276993712,14cyclictest0-21swapper/110:40:231
9275993714,20cyclictest0-21swapper/009:20:510
294492375,14sleep00-21swapper/007:50:300
284612375,13sleep00-21swapper/009:04:490
166122375,13sleep00-21swapper/007:24:560
9277993614,19cyclictest0-21swapper/212:21:062
9277993614,19cyclictest0-21swapper/212:21:062
9277993614,19cyclictest0-21swapper/212:00:062
9277993610,23cyclictest0-21swapper/211:37:462
9277993610,15cyclictest0-21swapper/210:25:252
927699365,21cyclictest0-21swapper/112:35:311
9276993616,17cyclictest0-21swapper/111:05:261
9276993616,17cyclictest0-21swapper/111:05:261
9276993610,23cyclictest0-21swapper/112:19:351
927599366,14cyclictest0-21swapper/011:15:330
9275993622,12cyclictest0-21swapper/009:05:040
85392364,11sleep00-21swapper/008:18:570
63572365,13sleep00-21swapper/008:13:560
261872365,10sleep20-21swapper/208:58:452
97802350,0sleep230814-21stress09:35:042
927799359,23cyclictest0-21swapper/210:10:042
927799359,23cyclictest0-21swapper/209:24:402
927799358,24cyclictest0-21swapper/209:41:182
927799358,24cyclictest0-21swapper/209:25:022
9277993511,21cyclictest0-21swapper/210:35:232
9277993510,22cyclictest0-21swapper/211:05:292
9277993510,22cyclictest0-21swapper/211:05:292
927699359,19cyclictest0-21swapper/109:45:321
927699355,20cyclictest0-21swapper/110:24:501
9276993514,18cyclictest0-21swapper/112:10:131
9276993510,22cyclictest0-21swapper/111:14:431
9276993510,22cyclictest0-21swapper/111:14:431
9275993516,16cyclictest0-21swapper/012:10:050
9275993516,16cyclictest0-21swapper/010:25:450
9275993513,19cyclictest0-21swapper/011:50:110
9275993513,19cyclictest0-21swapper/011:50:110
72022355,11sleep10-21swapper/108:15:171
239692355,11sleep00-21swapper/008:53:540
185192354,12sleep00-21swapper/007:26:200
127842355,12sleep10-21swapper/108:27:081
127842355,12sleep10-21swapper/108:27:081
105752355,10sleep20-21swapper/208:21:442
9277993416,15cyclictest0-21swapper/211:32:062
9277993416,15cyclictest0-21swapper/210:16:362
9277993415,16cyclictest0-21swapper/212:28:382
9277993414,17cyclictest0-21swapper/209:55:222
9277993410,21cyclictest0-21swapper/211:15:012
9277993410,21cyclictest0-21swapper/211:15:012
9277993410,21cyclictest0-21swapper/210:45:282
9277993410,12cyclictest0-21swapper/211:00:242
9277993410,12cyclictest0-21swapper/211:00:242
927699349,22cyclictest0-21swapper/109:15:391
927699349,21cyclictest0-21swapper/110:35:301
927699346,21cyclictest0-21swapper/108:35:161
9276993411,20cyclictest0-21swapper/109:20:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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