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2025-11-21 - 20:42
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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 Nov 21, 2025 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
956421200,1sleep312623-21stress10:15:213
23575211251,55sleep00-21swapper/007:06:120
23521211151,55sleep10-21swapper/107:05:291
2204929646,45sleep20-21swapper/207:05:152
2361029365,23sleep30-21swapper/307:06:393
23984994314,26cyclictest0-21swapper/009:33:020
23989994214,25cyclictest0-21swapper/209:18:232
23989994214,25cyclictest0-21swapper/209:18:222
23989994010,27cyclictest0-21swapper/210:26:302
23989994010,27cyclictest0-21swapper/210:26:292
62392395,13sleep20-21swapper/208:55:132
23985993913,23cyclictest0-21swapper/109:38:541
163342395,13sleep20-21swapper/208:04:012
34082385,13sleep20-21swapper/208:45:592
31742385,13sleep20-21swapper/207:34:412
250142385,13sleep20-21swapper/208:22:212
23993993811,24cyclictest0-21swapper/309:55:013
23989993815,20cyclictest0-21swapper/211:02:392
23989993815,20cyclictest0-21swapper/211:02:382
23985993822,14cyclictest0-21swapper/109:42:121
23985993813,23cyclictest0-21swapper/109:13:391
204562385,13sleep20-21swapper/208:10:342
184022385,13sleep20-21swapper/208:07:292
141782385,13sleep20-21swapper/207:59:232
57372375,13sleep20-21swapper/208:52:372
50962375,13sleep20-21swapper/207:36:262
316692375,13sleep20-21swapper/208:38:252
295352375,13sleep10-21swapper/108:33:511
293172375,13sleep20-21swapper/208:31:082
290182375,13sleep20-21swapper/207:18:542
287852375,13sleep10-21swapper/107:16:041
287822375,13sleep30-21swapper/307:16:023
23993993713,21cyclictest0-21swapper/312:16:483
23993993713,21cyclictest0-21swapper/312:16:483
23989993715,20cyclictest0-21swapper/212:04:562
23989993715,19cyclictest0-21swapper/212:25:082
23989993714,21cyclictest0-21swapper/212:20:422
23985993714,20cyclictest0-21swapper/111:20:151
23985993714,13cyclictest0-21swapper/112:35:451
229322375,13sleep30-21swapper/308:18:333
229322375,13sleep30-21swapper/308:18:333
228842375,13sleep20-21swapper/208:17:562
228842375,13sleep20-21swapper/208:17:562
118522375,13sleep20-21swapper/207:53:152
117072375,13sleep10-21swapper/107:51:201
101872375,13sleep20-21swapper/209:03:112
8262365,13sleep30-21swapper/307:28:053
79312365,13sleep30-21swapper/308:57:353
315162365,13sleep00-21swapper/008:36:310
31342365,13sleep30-21swapper/307:34:143
293772365,12sleep30-21swapper/308:31:523
248592365,13sleep10-21swapper/108:20:291
2399399369,24cyclictest0-21swapper/312:23:093
23993993613,20cyclictest0-21swapper/311:00:463
23993993613,20cyclictest0-21swapper/311:00:463
23993993611,22cyclictest0-21swapper/310:28:233
23993993611,22cyclictest0-21swapper/310:28:233
23989993615,19cyclictest0-21swapper/209:45:562
23989993614,20cyclictest0-21swapper/212:15:482
23989993614,20cyclictest0-21swapper/212:15:482
23989993614,20cyclictest0-21swapper/212:11:342
23989993614,20cyclictest0-21swapper/209:51:232
23989993614,19cyclictest0-21swapper/212:05:092
23989993614,19cyclictest0-21swapper/211:10:212
23989993613,20cyclictest0-21swapper/209:55:092
23989993613,20cyclictest0-21swapper/209:20:152
23985993615,19cyclictest0-21swapper/110:45:271
23985993614,20cyclictest0-21swapper/110:11:371
23985993613,21cyclictest0-21swapper/111:39:441
23985993612,22cyclictest0-21swapper/111:08:501
23985993612,21cyclictest0-21swapper/112:28:101
23985993610,17cyclictest0-21swapper/111:15:331
2398499367,26cyclictest0-21swapper/011:51:050
23984993615,19cyclictest0-21swapper/010:25:250
23984993615,19cyclictest0-21swapper/010:25:250
23984993610,23cyclictest0-21swapper/011:55:040
229602365,13sleep10-21swapper/108:18:551
229602365,13sleep10-21swapper/108:18:551
207592365,12sleep00-21swapper/008:14:130
183142364,13sleep00-21swapper/008:06:230
121892365,12sleep00-21swapper/009:05:500
116962365,13sleep00-21swapper/007:51:110
9272355,10sleep20-21swapper/207:29:042
6172355,13sleep00-21swapper/007:25:290
58002355,12sleep30-21swapper/308:53:263
57652354,13sleep00-21swapper/008:52:590
51922355,12sleep10-21swapper/107:37:331
310012354,13sleep00-21swapper/007:21:520
29962355,12sleep10-21swapper/107:32:361
292892355,12sleep00-21swapper/008:30:460
271012354,13sleep00-21swapper/008:25:440
2399399358,25cyclictest0-21swapper/308:40:283
23993993515,17cyclictest0-21swapper/309:47:463
23993993514,18cyclictest0-21swapper/311:15:173
23993993512,20cyclictest0-21swapper/310:38:463
2398999354,21cyclictest0-21swapper/209:35:202
23989993511,22cyclictest0-21swapper/211:45:182
2398599355,16cyclictest0-21swapper/110:00:151
23985993514,19cyclictest0-21swapper/110:34:441
23985993514,19cyclictest0-21swapper/110:34:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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