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2026-08-20 - 01:53
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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 Wed Aug 19, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3141821340,1sleep221139-21stress11:58:292
31336212161,20sleep30-21swapper/307:05:383
31660212052,63sleep10-21swapper/107:09:341
31627211653,23sleep00-21swapper/007:09:110
31499211151,55sleep20-21swapper/207:07:422
283632700,1sleep221139-21stress10:38:352
72522508,21sleep00-21swapper/011:04:390
72522508,21sleep00-21swapper/011:04:380
168632490,1sleep221139-21stress12:39:212
31804994413,20cyclictest0-21swapper/011:45:160
31804994213,19cyclictest0-21swapper/009:35:160
31804994113,18cyclictest0-21swapper/009:40:340
31804994113,18cyclictest0-21swapper/009:40:340
31804994112,20cyclictest0-21swapper/010:10:140
3180499409,28cyclictest0-21swapper/009:34:190
3180499406,24cyclictest0-21swapper/009:30:020
31804994017,17cyclictest0-21swapper/008:40:280
31804994011,19cyclictest0-21swapper/011:51:090
31804994011,19cyclictest0-21swapper/010:01:360
3180699395,16cyclictest0-21swapper/210:06:322
3180499398,24cyclictest0-21swapper/007:20:280
31804993918,15cyclictest0-21swapper/010:25:160
31804993910,23cyclictest0-21swapper/007:34:510
31804993910,23cyclictest0-21swapper/007:15:350
3180499388,20cyclictest0-21swapper/011:27:190
3180499388,20cyclictest0-21swapper/011:27:180
31804993817,15cyclictest0-21swapper/008:35:290
31804993816,17cyclictest0-21swapper/007:45:060
31804993810,26cyclictest0-21swapper/012:18:120
99022375,13sleep10-21swapper/108:43:531
44882375,13sleep20-21swapper/207:18:012
42972375,13sleep10-21swapper/107:15:541
324772375,13sleep20-21swapper/208:20:202
31805993715,19cyclictest0-21swapper/110:34:041
3180499378,23cyclictest0-21swapper/008:10:020
31804993710,24cyclictest0-21swapper/010:40:020
31804993710,22cyclictest0-21swapper/007:10:110
309842375,13sleep10-21swapper/108:17:141
30342375,13sleep10-21swapper/108:26:401
286322375,13sleep10-21swapper/108:11:131
132602375,13sleep30-21swapper/307:37:213
124502375,13sleep10-21swapper/108:50:021
97762364,13sleep30-21swapper/308:42:233
6082364,13sleep30-21swapper/308:20:253
31807993611,22cyclictest0-21swapper/309:21:323
3180699369,24cyclictest0-21swapper/212:30:252
3180699365,20cyclictest0-21swapper/209:40:022
3180599369,24cyclictest0-21swapper/109:56:271
3180599367,15cyclictest0-21swapper/111:55:011
31805993616,17cyclictest0-21swapper/111:26:011
31805993616,17cyclictest0-21swapper/111:26:011
31805993613,20cyclictest0-21swapper/110:55:511
3180499369,25cyclictest0-21swapper/011:40:280
3180499368,22cyclictest0-21swapper/007:25:210
31804993611,9cyclictest0-21swapper/012:23:430
31804993610,20cyclictest0-21swapper/008:28:570
31602365,12sleep30-21swapper/308:28:033
309862365,12sleep30-21swapper/308:17:163
264882365,13sleep00-21swapper/008:06:310
244152365,13sleep00-21swapper/008:03:300
202072365,11sleep20-21swapper/207:55:022
166362365,12sleep10-21swapper/108:59:571
137542365,13sleep10-21swapper/107:40:051
137542365,13sleep10-21swapper/107:40:041
120022365,12sleep30-21swapper/308:47:593
31807993513,20cyclictest0-21swapper/312:34:333
3180699358,25cyclictest0-21swapper/208:49:112
31805993515,17cyclictest0-21swapper/111:03:131
31805993515,17cyclictest0-21swapper/111:03:131
31805993514,19cyclictest0-21swapper/109:19:391
31805993513,20cyclictest0-21swapper/112:20:191
31805993513,19cyclictest0-21swapper/110:54:341
31805993513,19cyclictest0-21swapper/110:54:331
31805993511,21cyclictest0-21swapper/112:39:261
31805993511,21cyclictest0-21swapper/110:42:141
3180499359,21cyclictest0-21swapper/007:35:060
3180499359,19cyclictest0-21swapper/007:55:230
3180499358,20cyclictest0-21swapper/007:40:060
3180499358,20cyclictest0-21swapper/007:40:060
311962355,12sleep00-21swapper/008:19:410
266682354,12sleep30-21swapper/308:08:383
199762355,10sleep20-21swapper/207:53:092
98002345,10sleep20-21swapper/208:42:422
87742343,13sleep20-21swapper/207:26:112
87272344,13sleep30-21swapper/307:25:363
51992345,10sleep10-21swapper/108:30:461
31807993411,20cyclictest0-21swapper/309:50:513
31807993411,20cyclictest0-21swapper/309:50:513
3180699348,24cyclictest0-21swapper/208:33:312
3180699348,24cyclictest0-21swapper/207:31:212
3180699348,24cyclictest0-21swapper/207:24:512
3180599349,22cyclictest0-21swapper/111:18:051
31805993415,17cyclictest0-21swapper/111:10:071
31805993414,17cyclictest0-21swapper/109:40:161
31805993414,17cyclictest0-21swapper/109:40:161
31805993413,19cyclictest0-21swapper/110:06:271
31805993412,19cyclictest0-21swapper/112:09:301
31805993412,19cyclictest0-21swapper/112:09:301
3180499349,19cyclictest0-21swapper/008:20:060
3180499344,23cyclictest0-21swapper/012:00:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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