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2026-04-04 - 15:16
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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 Sat Apr 04, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2685021390,1sleep314713-21stress10:51:233
26964212059,56sleep20-21swapper/207:07:202
26960211553,23sleep30-21swapper/307:07:163
26823211452,57sleep00-21swapper/007:05:330
27040211050,21sleep10-21swapper/107:08:201
27272995611,24cyclictest0-21swapper/109:46:161
27272995611,24cyclictest0-21swapper/109:46:161
2727299549,21cyclictest0-21swapper/112:35:131
27272995315,18cyclictest0-21swapper/111:40:251
27272995215,13cyclictest0-21swapper/111:05:211
27272995214,15cyclictest0-21swapper/109:39:411
27272995210,23cyclictest0-21swapper/112:26:431
258482520,1sleep014713-21stress12:05:250
27272995111,20cyclictest0-21swapper/111:10:461
2727299506,21cyclictest0-21swapper/109:15:321
2727299489,17cyclictest0-21swapper/111:16:091
2727299488,20cyclictest0-21swapper/111:37:101
27272994816,13cyclictest0-21swapper/107:55:021
27272994810,18cyclictest0-21swapper/111:01:061
2727299475,23cyclictest0-21swapper/107:21:221
27272994715,13cyclictest0-21swapper/108:07:321
27272994715,13cyclictest0-21swapper/107:28:421
27272994714,13cyclictest0-21swapper/109:10:191
27272994714,13cyclictest0-21swapper/109:10:191
27272994712,14cyclictest0-21swapper/111:58:321
2727299465,23cyclictest0-21swapper/108:48:121
2727299465,23cyclictest0-21swapper/108:20:021
27272994615,13cyclictest0-21swapper/109:05:151
27272994615,13cyclictest0-21swapper/108:32:321
27272994615,12cyclictest0-21swapper/107:48:321
27272994614,14cyclictest0-21swapper/109:20:171
27272994613,13cyclictest0-21swapper/108:50:181
2727299455,23cyclictest0-21swapper/107:31:521
27272994515,12cyclictest0-21swapper/109:01:221
27272994514,12cyclictest0-21swapper/111:51:571
27272994510,17cyclictest0-21swapper/107:35:201
2727299449,17cyclictest0-21swapper/107:40:181
2727299445,24cyclictest0-21swapper/108:28:211
27272994410,17cyclictest0-21swapper/108:15:241
27271994416,25cyclictest0-21swapper/012:11:390
2727299435,23cyclictest0-21swapper/107:15:021
27272994315,12cyclictest0-21swapper/110:25:031
27271994315,25cyclictest0-21swapper/010:09:460
27272994213,12cyclictest0-21swapper/110:40:191
2727499389,26cyclictest0-21swapper/211:05:022
27274993815,21cyclictest0-21swapper/211:13:302
41862374,14sleep20-21swapper/208:45:092
38002375,14sleep20-21swapper/208:43:322
27274993715,19cyclictest0-21swapper/211:45:342
27274993715,19cyclictest0-21swapper/211:30:042
27274993715,19cyclictest0-21swapper/211:30:032
27274993715,19cyclictest0-21swapper/210:40:322
254832375,13sleep20-21swapper/208:18:382
19542374,12sleep00-21swapper/007:24:350
27275993618,16cyclictest0-21swapper/310:00:073
2727499369,24cyclictest0-21swapper/210:25:112
27274993613,20cyclictest0-21swapper/210:05:192
27274993612,21cyclictest0-21swapper/209:35:282
2727299365,13cyclictest0-21swapper/108:03:211
2727199367,26cyclictest0-21swapper/009:22:010
2727199365,25cyclictest0-21swapper/009:01:100
27271993615,18cyclictest0-21swapper/012:34:270
27271993612,21cyclictest0-21swapper/009:40:110
27271993612,21cyclictest0-21swapper/009:40:110
27271993610,23cyclictest0-21swapper/012:20:160
232082364,13sleep20-21swapper/208:12:032
84672354,11sleep30-21swapper/307:39:573
39362354,11sleep30-21swapper/307:27:063
38482354,11sleep20-21swapper/207:26:002
319882355,13sleep20-21swapper/207:16:432
275962354,13sleep00-21swapper/008:23:210
27275993520,13cyclictest0-21swapper/311:10:213
27275993517,15cyclictest0-21swapper/309:34:533
27275993516,16cyclictest0-21swapper/310:41:343
27274993511,22cyclictest0-21swapper/210:25:002
27274993511,22cyclictest0-21swapper/210:25:002
27274993510,22cyclictest0-21swapper/212:25:312
27271993516,16cyclictest0-21swapper/010:57:320
27271993516,16cyclictest0-21swapper/010:57:310
27271993516,16cyclictest0-21swapper/010:15:260
27271993512,21cyclictest0-21swapper/009:10:260
27271993512,21cyclictest0-21swapper/009:10:260
27271993510,22cyclictest0-21swapper/012:38:430
242232350,1sleep324225-21awk10:45:303
190132354,11sleep30-21swapper/308:03:113
14742354,11sleep30-21swapper/308:36:483
144372354,11sleep30-21swapper/309:07:273
142852354,11sleep20-21swapper/209:05:302
9102344,12sleep20-21swapper/207:20:202
82762344,13sleep20-21swapper/207:37:402
80402343,12sleep20-21swapper/208:52:552
38282343,11sleep00-21swapper/007:25:460
291922344,11sleep20-21swapper/207:13:142
27274993415,16cyclictest0-21swapper/209:13:542
27274993415,16cyclictest0-21swapper/209:13:542
27274993414,18cyclictest0-21swapper/211:55:012
27271993412,19cyclictest0-21swapper/011:00:330
27271993411,21cyclictest0-21swapper/012:00:130
27271993411,20cyclictest0-21swapper/009:49:050
27271993411,20cyclictest0-21swapper/009:49:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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