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2026-04-08 - 17:31
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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 Apr 08, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1288421220,1sleep326303-21stress09:51:583
6164211656,54sleep20-21swapper/207:07:342
6162211351,23sleep00-21swapper/007:07:320
420028556,23sleep30-21swapper/307:05:013
448628151,24sleep10-21swapper/107:05:111
304822590,1sleep026301-21stress10:35:100
304822590,1sleep026301-21stress10:35:090
6461994517,20cyclictest0-21swapper/007:12:430
6461994215,18cyclictest0-21swapper/008:42:030
6464994112,26cyclictest0-21swapper/310:20:113
6464994011,26cyclictest0-21swapper/310:17:113
646199407,25cyclictest0-21swapper/012:04:030
154332409,12sleep20-21swapper/208:43:582
6461993915,16cyclictest0-21swapper/008:11:030
67882385,13sleep00-21swapper/008:22:510
6464993811,24cyclictest0-21swapper/311:46:033
6461993814,18cyclictest0-21swapper/008:54:330
175452385,13sleep30-21swapper/307:30:443
111492385,13sleep30-21swapper/307:16:173
66432376,12sleep20-21swapper/208:21:042
6464993715,20cyclictest0-21swapper/312:37:593
646399379,25cyclictest0-21swapper/211:32:222
646199379,22cyclictest0-21swapper/007:15:060
646199376,17cyclictest0-21swapper/011:20:060
646199376,17cyclictest0-21swapper/011:20:060
259462375,12sleep20-21swapper/209:06:322
197172376,12sleep20-21swapper/208:54:082
133022374,13sleep30-21swapper/307:21:273
112022374,13sleep00-21swapper/008:34:290
84042365,12sleep20-21swapper/207:13:152
6464993616,13cyclictest0-21swapper/309:15:533
6464993615,15cyclictest0-21swapper/309:22:273
6462993614,20cyclictest0-21swapper/109:42:211
646199365,17cyclictest0-21swapper/009:35:340
6461993615,14cyclictest0-21swapper/008:18:260
6461993613,16cyclictest0-21swapper/008:48:330
304782365,12sleep20-21swapper/208:02:122
282222365,13sleep00-21swapper/007:55:440
240722364,13sleep20-21swapper/207:47:192
157362365,14sleep00-21swapper/007:30:010
131772365,13sleep10-21swapper/108:37:311
646499359,23cyclictest0-21swapper/311:15:253
646499359,23cyclictest0-21swapper/311:15:243
6464993516,17cyclictest0-21swapper/310:25:143
6464993514,19cyclictest0-21swapper/312:30:103
6464993514,19cyclictest0-21swapper/312:30:093
6464993514,18cyclictest0-21swapper/312:19:053
6464993513,20cyclictest0-21swapper/310:35:233
6464993513,20cyclictest0-21swapper/310:35:233
646399359,24cyclictest0-21swapper/211:38:122
6463993511,22cyclictest0-21swapper/210:50:262
6463993511,21cyclictest0-21swapper/211:21:332
6463993511,21cyclictest0-21swapper/211:21:322
646299356,26cyclictest0-21swapper/112:01:461
646299356,26cyclictest0-21swapper/110:08:281
646299356,26cyclictest0-21swapper/110:08:271
6462993513,19cyclictest0-21swapper/112:30:291
6462993513,19cyclictest0-21swapper/112:30:291
646199359,23cyclictest0-21swapper/009:35:010
646199359,23cyclictest0-21swapper/009:35:000
646199353,26cyclictest0-21swapper/008:28:330
6461993514,19cyclictest0-21swapper/011:41:230
6461993514,15cyclictest0-21swapper/008:02:040
6461993512,21cyclictest0-21swapper/012:34:270
6461993512,21cyclictest0-21swapper/012:34:260
6461993510,17cyclictest0-21swapper/008:55:060
6461993510,17cyclictest0-21swapper/008:55:060
25902355,14sleep20-21swapper/208:14:542
239752354,13sleep10-21swapper/109:03:461
110042354,13sleep10-21swapper/108:32:021
6464993415,17cyclictest0-21swapper/310:09:063
6464993415,17cyclictest0-21swapper/310:09:053
6464993414,18cyclictest0-21swapper/309:40:293
6463993415,16cyclictest0-21swapper/209:37:432
6463993412,19cyclictest0-21swapper/209:10:492
6463993410,21cyclictest0-21swapper/211:58:122
646299348,24cyclictest0-21swapper/107:21:061
646299346,17cyclictest0-21swapper/110:15:431
6462993411,20cyclictest0-21swapper/111:46:101
6462993410,22cyclictest0-21swapper/110:56:561
646199346,25cyclictest0-21swapper/010:15:160
646199346,18cyclictest0-21swapper/011:50:330
646199346,18cyclictest0-21swapper/011:50:330
646199345,22cyclictest0-21swapper/011:10:120
646199344,24cyclictest0-21swapper/008:39:330
6461993417,12cyclictest0-21swapper/007:20:380
6461993416,15cyclictest0-21swapper/009:26:220
6461993416,15cyclictest0-21swapper/009:26:220
6461993415,16cyclictest0-21swapper/012:09:090
6461993412,16cyclictest0-21swapper/009:09:330
219282345,10sleep10-21swapper/107:42:091
174422345,9sleep30-21swapper/308:47:113
6464993315,16cyclictest0-21swapper/312:20:203
6463993314,16cyclictest0-21swapper/209:56:502
6463993312,18cyclictest0-21swapper/210:01:132
6463993312,18cyclictest0-21swapper/210:01:132
6463993310,20cyclictest0-21swapper/211:26:262
6463993310,20cyclictest0-21swapper/209:19:312
646299339,21cyclictest0-21swapper/111:35:251
646299335,25cyclictest0-21swapper/107:45:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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