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2026-04-03 - 21:25
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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 rackdslot4.osadl.org (updated Fri Apr 03, 2026 12:45:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40002205170,23sleep10-21swapper/107:09:141
138591205171,23phc2sys0-21swapper/307:05:103
39032201168,22sleep20-21swapper/207:08:062
17752201166,24sleep00-21swapper/007:05:030
138491740,1ptp4l391rcuc/309:30:223
4351995930,7cyclictest9-21ksoftirqd/008:59:590
88672580,2sleep30-21swapper/310:30:243
288882580,3sleep20-21swapper/212:15:262
10722560,2sleep11075-21sendmail_mailqu09:10:241
4351995424,6cyclictest9-21ksoftirqd/009:10:150
4354995326,8cyclictest41-21ksoftirqd/311:30:133
4354995223,7cyclictest41-21ksoftirqd/311:45:003
4354995219,7cyclictest41-21ksoftirqd/309:25:013
4353995232,18cyclictest33-21ksoftirqd/207:17:212
4351995222,7cyclictest9-21ksoftirqd/012:05:150
4351995125,3cyclictest9-21ksoftirqd/011:35:160
4351995123,3cyclictest9-21ksoftirqd/007:30:110
4351995117,6cyclictest9-21ksoftirqd/008:40:010
145332510,2sleep30-21swapper/310:45:143
138491510,0ptp4l391rcuc/307:10:373
435499503,7cyclictest41-21ksoftirqd/311:50:033
435499503,7cyclictest41-21ksoftirqd/310:05:153
4351995021,3cyclictest9-21ksoftirqd/008:15:240
4351995012,5cyclictest9-21ksoftirqd/008:05:160
135191500,2getstats0-21swapper/307:25:273
435499496,7cyclictest41-21ksoftirqd/311:55:183
435499495,9cyclictest41-21ksoftirqd/309:10:003
435499495,8cyclictest41-21ksoftirqd/310:00:133
435499495,6cyclictest41-21ksoftirqd/310:20:003
435499494,9cyclictest41-21ksoftirqd/307:20:253
435499494,7cyclictest41-21ksoftirqd/307:55:013
4354994918,7cyclictest41-21ksoftirqd/308:10:173
435199498,6cyclictest9-21ksoftirqd/012:20:230
4351994920,4cyclictest9-21ksoftirqd/009:15:130
4351994918,5cyclictest9-21ksoftirqd/010:35:220
4351994917,6cyclictest9-21ksoftirqd/009:45:560
4351994917,11cyclictest9-21ksoftirqd/012:30:170
4351994915,3cyclictest9-21ksoftirqd/008:25:270
4351994912,6cyclictest9-21ksoftirqd/009:30:230
435499485,3cyclictest41-21ksoftirqd/307:55:233
435499484,9cyclictest41-21ksoftirqd/309:45:133
435199489,6cyclictest9-21ksoftirqd/007:20:150
4351994815,3cyclictest9-21ksoftirqd/009:50:240
4351994814,4cyclictest9-21ksoftirqd/012:00:130
4351994810,6cyclictest9-21ksoftirqd/010:40:250
4351994810,6cyclictest9-21ksoftirqd/007:50:250
4351994810,5cyclictest9-21ksoftirqd/007:45:230
435499476,6cyclictest41-21ksoftirqd/309:55:013
435499475,7cyclictest41-21ksoftirqd/310:10:143
435499475,7cyclictest41-21ksoftirqd/308:05:163
435499475,6cyclictest41-21ksoftirqd/307:35:163
4351994721,6cyclictest9-21ksoftirqd/012:25:190
4351994716,3cyclictest9-21ksoftirqd/009:05:130
4351994713,7cyclictest9-21ksoftirqd/011:05:220
4351994713,3cyclictest9-21ksoftirqd/010:10:170
4351994711,3cyclictest9-21ksoftirqd/011:00:210
4351994710,5cyclictest9-21ksoftirqd/007:10:200
435499466,6cyclictest41-21ksoftirqd/310:00:013
435499465,9cyclictest41-21ksoftirqd/311:15:003
435499465,9cyclictest41-21ksoftirqd/310:35:143
435499465,8cyclictest41-21ksoftirqd/308:20:123
435499465,7cyclictest41-21ksoftirqd/312:20:133
435499465,7cyclictest41-21ksoftirqd/310:50:163
435499465,7cyclictest41-21ksoftirqd/309:00:243
435499465,7cyclictest41-21ksoftirqd/307:50:013
435499465,7cyclictest41-21ksoftirqd/307:40:153
435499465,6cyclictest41-21ksoftirqd/309:25:123
435499465,5cyclictest0-21swapper/308:40:123
435499464,8cyclictest41-21ksoftirqd/308:15:233
435499464,6cyclictest41-21ksoftirqd/308:35:123
435499464,6cyclictest41-21ksoftirqd/307:30:123
435499463,8cyclictest41-21ksoftirqd/311:05:163
435499463,7cyclictest41-21ksoftirqd/309:35:133
435499463,6cyclictest41-21ksoftirqd/312:35:143
435499463,6cyclictest41-21ksoftirqd/312:15:153
435199469,7cyclictest9-21ksoftirqd/010:25:170
435199469,6cyclictest9-21ksoftirqd/009:25:230
435199469,5cyclictest9-21ksoftirqd/010:55:150
435199468,6cyclictest9-21ksoftirqd/008:50:260
4351994619,7cyclictest9-21ksoftirqd/010:00:000
4351994614,4cyclictest9-21ksoftirqd/011:55:130
4351994614,4cyclictest9-21ksoftirqd/007:55:110
4351994612,3cyclictest9-21ksoftirqd/010:30:220
435499455,7cyclictest41-21ksoftirqd/311:35:123
435499455,7cyclictest41-21ksoftirqd/309:15:123
435499455,6cyclictest41-21ksoftirqd/310:20:263
435499455,3cyclictest41-21ksoftirqd/311:00:143
435499454,8cyclictest41-21ksoftirqd/312:25:203
435499454,7cyclictest41-21ksoftirqd/307:15:113
435499453,7cyclictest41-21ksoftirqd/308:25:163
435499452,7cyclictest41-21ksoftirqd/309:05:163
435199458,6cyclictest9-21ksoftirqd/008:20:260
435199458,5cyclictest9-21ksoftirqd/010:05:240
435199457,6cyclictest9-21ksoftirqd/008:10:170
4351994518,7cyclictest9-21ksoftirqd/010:15:140
4351994517,4cyclictest9-21ksoftirqd/008:00:510
4351994514,3cyclictest9-21ksoftirqd/012:35:110
4351994510,7cyclictest9-21ksoftirqd/011:45:130
4351994510,6cyclictest9-21ksoftirqd/007:40:180
435499445,9cyclictest41-21ksoftirqd/310:55:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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