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2026-03-17 - 13:02
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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 Tue Mar 17, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
226821260,1sleep17615-21stress23:29:471
226821260,1sleep17615-21stress23:29:471
20019210945,59sleep20-21swapper/219:06:162
2018829367,21sleep30-21swapper/319:08:273
2020428860,23sleep10-21swapper/119:08:371
2030328554,26sleep00-21swapper/019:09:470
2042599679,43cyclictest0-21swapper/123:13:591
218672660,1sleep37615-21stress22:58:423
20425995915,20cyclictest0-21swapper/121:30:261
20425995715,20cyclictest0-21swapper/121:43:261
20425995514,21cyclictest0-21swapper/121:35:061
20425995415,36cyclictest0-21swapper/100:33:511
20425995415,36cyclictest0-21swapper/100:33:511
20425995311,21cyclictest0-21swapper/123:30:021
20425995311,21cyclictest0-21swapper/123:30:021
20425995115,33cyclictest0-21swapper/122:00:181
20425995114,15cyclictest0-21swapper/122:50:321
20425995113,17cyclictest0-21swapper/121:55:241
20425995111,20cyclictest0-21swapper/123:15:191
20425995111,18cyclictest0-21swapper/123:40:211
20425995111,16cyclictest0-21swapper/100:10:151
2042599506,23cyclictest0-21swapper/100:07:311
2042599506,23cyclictest0-21swapper/100:07:311
20425995015,32cyclictest0-21swapper/121:15:501
20425995014,17cyclictest0-21swapper/123:20:281
20425995013,15cyclictest0-21swapper/122:45:171
20425995013,14cyclictest0-21swapper/100:02:581
20425995013,14cyclictest0-21swapper/100:02:571
20425994914,16cyclictest0-21swapper/122:30:181
20425994913,16cyclictest0-21swapper/122:06:361
20425994911,16cyclictest0-21swapper/122:15:291
20425994911,12cyclictest0-21swapper/122:25:141
20425994910,18cyclictest0-21swapper/123:45:151
20425994910,16cyclictest0-21swapper/121:22:071
2042599485,26cyclictest0-21swapper/119:19:161
20425994813,18cyclictest0-21swapper/100:35:091
20425994813,18cyclictest0-21swapper/100:35:091
20425994812,17cyclictest0-21swapper/122:10:341
20425994812,16cyclictest0-21swapper/121:10:151
20425994812,14cyclictest0-21swapper/121:45:301
20425994812,14cyclictest0-21swapper/121:45:291
20425994810,20cyclictest0-21swapper/122:20:041
20425994810,20cyclictest0-21swapper/122:20:031
2042599475,25cyclictest0-21swapper/120:56:161
20425994713,16cyclictest0-21swapper/120:40:181
2042599466,21cyclictest0-21swapper/119:40:121
2042599466,17cyclictest0-21swapper/121:50:171
2042599465,25cyclictest0-21swapper/119:23:251
20425994615,15cyclictest0-21swapper/120:26:061
20425994613,30cyclictest0-21swapper/100:20:331
20425994613,16cyclictest0-21swapper/120:15:201
20425994612,16cyclictest0-21swapper/119:25:141
2042599456,15cyclictest0-21swapper/121:25:161
2042599455,24cyclictest0-21swapper/121:01:261
20425994514,15cyclictest0-21swapper/120:13:351
20425994510,16cyclictest0-21swapper/120:35:181
2042599446,22cyclictest0-21swapper/123:54:051
2042599446,16cyclictest0-21swapper/100:25:261
2042599446,15cyclictest0-21swapper/123:55:271
2042599446,13cyclictest0-21swapper/123:08:411
20425994413,15cyclictest0-21swapper/121:06:361
20425994314,13cyclictest0-21swapper/120:01:061
20425994311,12cyclictest0-21swapper/122:41:041
2042599429,14cyclictest0-21swapper/119:59:091
2042599427,14cyclictest0-21swapper/120:20:241
2042599426,15cyclictest0-21swapper/119:30:161
20425994216,14cyclictest0-21swapper/120:05:161
20425994211,16cyclictest0-21swapper/120:30:171
2042599417,15cyclictest0-21swapper/122:55:141
2042599416,15cyclictest0-21swapper/100:15:191
2042599416,14cyclictest0-21swapper/123:35:291
2042599415,19cyclictest0-21swapper/120:51:511
20426994010,27cyclictest0-21swapper/221:15:482
20425994010,12cyclictest0-21swapper/120:45:331
20426993911,25cyclictest0-21swapper/221:50:162
20426993910,26cyclictest0-21swapper/223:30:352
20426993910,26cyclictest0-21swapper/223:30:352
20425993911,12cyclictest0-21swapper/119:13:111
20424993910,26cyclictest0-21swapper/022:46:060
250262385,14sleep20-21swapper/219:15:272
2042699389,27cyclictest0-21swapper/223:50:312
39322375,13sleep30-21swapper/319:45:123
39322375,13sleep30-21swapper/319:45:113
32322375,14sleep20-21swapper/220:59:492
20426993716,19cyclictest0-21swapper/223:10:242
20426993714,21cyclictest0-21swapper/221:40:012
20426993711,23cyclictest0-21swapper/221:40:212
2042599376,15cyclictest0-21swapper/119:50:171
20424993711,20cyclictest0-21swapper/019:46:510
20424993711,20cyclictest0-21swapper/019:46:500
290062364,13sleep30-21swapper/320:42:093
267592365,14sleep20-21swapper/220:35:312
230042365,13sleep20-21swapper/220:30:012
20426993610,23cyclictest0-21swapper/222:50:022
2042499367,18cyclictest0-21swapper/022:55:200
20424993617,16cyclictest0-21swapper/023:59:250
20424993615,18cyclictest0-21swapper/023:05:180
20424993612,21cyclictest0-21swapper/022:35:100
140822365,11sleep00-21swapper/020:06:580
316622354,14sleep00-21swapper/019:33:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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