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2026-04-23 - 02:53
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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 Thu Apr 23, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19204212056,24sleep00-21swapper/019:09:320
19143211151,55sleep10-21swapper/119:08:441
3244921100,1sleep27051-21stress22:06:302
3244921100,1sleep27051-21stress22:06:302
18929211053,20sleep30-21swapper/319:06:003
18981210580,20sleep20-21swapper/219:06:412
54762920,4sleep27051-21stress23:35:242
19343995433,19cyclictest0-21swapper/222:54:512
19343995033,14cyclictest0-21swapper/221:41:592
19343995030,17cyclictest0-21swapper/223:15:182
19343994933,13cyclictest0-21swapper/223:04:352
19343994933,13cyclictest0-21swapper/221:39:292
19343994932,14cyclictest0-21swapper/200:04:012
19342994911,28cyclictest0-21swapper/123:41:031
19342994911,28cyclictest0-21swapper/123:41:031
19343994832,13cyclictest0-21swapper/223:30:262
1934399477,31cyclictest0-21swapper/223:25:262
19343994732,13cyclictest0-21swapper/200:08:142
19343994731,13cyclictest0-21swapper/223:09:552
1934399468,28cyclictest0-21swapper/222:55:182
19343994629,14cyclictest0-21swapper/221:26:452
19343994611,26cyclictest0-21swapper/221:55:132
1934399454,32cyclictest0-21swapper/222:20:232
1934399448,26cyclictest0-21swapper/222:30:202
1934399447,25cyclictest0-21swapper/223:10:232
19343994429,13cyclictest0-21swapper/200:20:202
19343994429,12cyclictest0-21swapper/223:20:072
19343994429,12cyclictest0-21swapper/222:50:022
19343994429,12cyclictest0-21swapper/222:50:012
1934399438,26cyclictest0-21swapper/221:10:262
1934399437,26cyclictest0-21swapper/223:45:152
19343994317,12cyclictest7051-21stress22:40:022
19343994314,19cyclictest7051-21stress21:50:222
1934299439,22cyclictest0-21swapper/122:33:501
19342994310,21cyclictest0-21swapper/123:35:161
1934399427,21cyclictest0-21swapper/221:20:262
19343994227,13cyclictest0-21swapper/222:43:122
19343994227,13cyclictest0-21swapper/222:43:112
19343994215,9cyclictest7053-21stress00:35:262
19343994215,9cyclictest7053-21stress00:35:262
19343994215,16cyclictest7051-21stress00:16:172
19343994214,17cyclictest8991-21latency_hist22:30:022
19343994113,17cyclictest7051-21stress21:15:302
1934299418,28cyclictest0-21swapper/123:45:141
1934499409,28cyclictest0-21swapper/322:23:073
19343994022,15cyclictest0-21swapper/223:51:222
19343994020,5cyclictest7053-21stress23:57:362
19343994020,5cyclictest7053-21stress23:57:352
19343994013,16cyclictest7051-21stress21:30:302
19343994012,13cyclictest7053-21stress00:10:032
19341994014,24cyclictest0-21swapper/021:13:060
19341994011,26cyclictest0-21swapper/021:20:580
1934399398,22cyclictest0-21swapper/222:10:362
1934399398,22cyclictest0-21swapper/222:10:362
1934399395,17cyclictest0-21swapper/223:40:202
1934399395,17cyclictest0-21swapper/223:40:192
19343993913,16cyclictest7051-21stress22:00:212
19343993913,16cyclictest29462-21mailstats00:30:322
19343993912,17cyclictest7053-21stress21:45:192
19343993911,17cyclictest7053-21stress00:25:082
1934299397,20cyclictest0-21swapper/100:14:101
306882385,13sleep30-21swapper/320:49:553
19344993815,20cyclictest0-21swapper/323:25:173
19342993814,22cyclictest0-21swapper/122:26:171
19342993811,24cyclictest0-21swapper/122:46:441
19342993811,24cyclictest0-21swapper/122:46:431
19342993811,19cyclictest0-21swapper/121:49:341
67652375,13sleep30-21swapper/321:07:243
67652375,13sleep30-21swapper/321:07:233
260492375,13sleep30-21swapper/320:35:323
19344993715,19cyclictest0-21swapper/321:15:283
19344993713,21cyclictest0-21swapper/323:15:073
19343993713,8cyclictest7051-21stress22:15:152
19343993712,15cyclictest7053-21stress21:10:002
19343993712,15cyclictest7053-21stress21:10:002
19343993712,10cyclictest6126-21grep19:50:192
19342993715,19cyclictest0-21swapper/122:20:311
1934199379,20cyclictest0-21swapper/023:15:170
19341993717,18cyclictest0-21swapper/023:25:070
19341993717,17cyclictest0-21swapper/000:34:320
19341993716,18cyclictest0-21swapper/023:05:590
19341993716,14cyclictest0-21swapper/022:55:520
19341993714,20cyclictest0-21swapper/022:20:110
19341993713,21cyclictest0-21swapper/023:20:140
153872375,13sleep30-21swapper/320:11:513
195922365,13sleep10-21swapper/120:20:261
19343993615,13cyclictest2754-21latency_hist19:45:002
19343993614,6cyclictest24950-21df20:35:132
19342993615,12cyclictest0-21swapper/123:30:161
19342993610,23cyclictest0-21swapper/123:15:441
1934199368,25cyclictest0-21swapper/023:05:020
19341993616,18cyclictest0-21swapper/022:50:260
19341993615,19cyclictest0-21swapper/021:41:250
19341993613,17cyclictest0-21swapper/000:15:200
19341993612,21cyclictest0-21swapper/021:37:380
88682355,13sleep30-21swapper/319:55:463
47472355,13sleep00-21swapper/021:04:290
46312355,13sleep30-21swapper/319:46:523
4032355,12sleep30-21swapper/319:39:013
267602355,13sleep00-21swapper/019:25:040
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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