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2026-03-10 - 00:06
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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 Mon Mar 09, 2026 12:45:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591211167,33phc2sys0-21swapper/307:05:043
267532205171,22sleep00-21swapper/007:09:400
267492203169,22sleep10-21swapper/107:09:371
265812203169,23sleep20-21swapper/207:07:252
325921500,5sleep02707399cyclictest07:25:190
325921500,5sleep02707399cyclictest07:25:190
2678229662,10sleep10-21swapper/107:10:021
138491760,0ptp4l391rcuc/310:10:203
78572660,2sleep10-21swapper/107:35:151
253242660,3sleep02707399cyclictest09:15:150
27076996428,7cyclictest41-21ksoftirqd/309:05:003
27076996328,7cyclictest41-21ksoftirqd/312:00:143
27076996328,10cyclictest41-21ksoftirqd/312:15:003
27076996226,7cyclictest41-21ksoftirqd/307:55:123
27076996226,7cyclictest41-21ksoftirqd/307:55:123
27076996223,8cyclictest41-21ksoftirqd/311:35:003
27076996127,4cyclictest41-21ksoftirqd/307:30:183
27076996125,4cyclictest41-21ksoftirqd/310:10:013
27076996121,7cyclictest41-21ksoftirqd/308:05:203
27076996030,4cyclictest41-21ksoftirqd/309:30:013
27076996030,4cyclictest41-21ksoftirqd/308:25:193
27076996028,7cyclictest41-21ksoftirqd/311:20:153
27076996027,8cyclictest41-21ksoftirqd/309:15:263
27076996024,8cyclictest41-21ksoftirqd/311:25:283
27076996024,8cyclictest41-21ksoftirqd/309:15:003
27076996023,7cyclictest41-21ksoftirqd/308:10:233
27076995926,10cyclictest41-21ksoftirqd/308:30:243
27076995925,8cyclictest41-21ksoftirqd/311:50:193
27076995923,8cyclictest41-21ksoftirqd/311:35:253
27076995923,7cyclictest41-21ksoftirqd/312:25:203
27076995923,7cyclictest41-21ksoftirqd/311:55:133
27076995923,7cyclictest41-21ksoftirqd/310:30:133
27076995825,7cyclictest41-21ksoftirqd/311:10:153
27076995823,9cyclictest41-21ksoftirqd/307:20:243
27076995823,8cyclictest41-21ksoftirqd/311:15:153
27076995823,8cyclictest41-21ksoftirqd/308:40:183
27076995821,7cyclictest41-21ksoftirqd/309:50:153
27076995723,7cyclictest41-21ksoftirqd/311:00:233
27076995723,6cyclictest41-21ksoftirqd/310:20:253
27076995722,8cyclictest41-21ksoftirqd/311:45:273
27076995721,8cyclictest41-21ksoftirqd/309:35:133
27076995720,10cyclictest41-21ksoftirqd/310:50:003
27076995717,10cyclictest41-21ksoftirqd/312:20:153
195492570,2sleep1231rcuc/109:05:011
27076995630,7cyclictest41-21ksoftirqd/308:20:253
27076995630,4cyclictest41-21ksoftirqd/310:25:213
27076995626,9cyclictest41-21ksoftirqd/309:30:123
27076995626,3cyclictest41-21ksoftirqd/307:11:573
27076995623,6cyclictest41-21ksoftirqd/311:05:243
27076995621,8cyclictest41-21ksoftirqd/312:15:133
27076995621,7cyclictest41-21ksoftirqd/307:35:183
27076995620,9cyclictest41-21ksoftirqd/307:45:233
229332560,2sleep00-21swapper/011:20:150
305042550,3sleep00-21swapper/010:30:170
27076995524,4cyclictest41-21ksoftirqd/311:40:143
27076995424,9cyclictest41-21ksoftirqd/308:15:143
27076995422,9cyclictest41-21ksoftirqd/310:15:143
27076995422,8cyclictest41-21ksoftirqd/310:55:133
27076995421,9cyclictest41-21ksoftirqd/312:40:013
27076995421,7cyclictest41-21ksoftirqd/312:30:213
2707699534,8cyclictest41-21ksoftirqd/307:20:003
27076995323,9cyclictest41-21ksoftirqd/309:20:143
27076995321,7cyclictest41-21ksoftirqd/309:40:133
27076995319,7cyclictest41-21ksoftirqd/312:05:173
2707699522,7cyclictest41-21ksoftirqd/309:50:003
27076995225,9cyclictest41-21ksoftirqd/308:35:223
27076995222,9cyclictest41-21ksoftirqd/307:40:143
27076995222,7cyclictest41-21ksoftirqd/308:55:143
27076995221,7cyclictest41-21ksoftirqd/310:50:153
27076995218,8cyclictest41-21ksoftirqd/309:55:153
2707699515,3cyclictest41-21ksoftirqd/307:25:143
2707699515,3cyclictest41-21ksoftirqd/307:25:133
27076995122,7cyclictest41-21ksoftirqd/308:50:133
27076995117,8cyclictest41-21ksoftirqd/310:35:123
27076995022,7cyclictest41-21ksoftirqd/309:05:163
27076995017,7cyclictest41-21ksoftirqd/308:05:013
27076994922,4cyclictest41-21ksoftirqd/310:45:003
27073994741,4cyclictest24326-21apt08:10:000
110382470,2sleep10-21swapper/109:50:221
2707699463,8cyclictest41-21ksoftirqd/308:45:243
2707699460,6cyclictest41-21ksoftirqd/307:50:213
27073994539,3cyclictest12489-21anacron11:00:100
2707699441,9cyclictest41-21ksoftirqd/310:00:253
27075994315,26cyclictest0-21swapper/211:12:132
27073994238,2cyclictest9-21ksoftirqd/011:20:000
27075994135,4cyclictest7764-21grep07:35:162
27075994112,27cyclictest0-21swapper/209:02:442
27073994135,3cyclictest9-21ksoftirqd/011:40:010
27075993934,3cyclictest33-21ksoftirqd/207:35:012
27074993930,6cyclictest25-21ksoftirqd/108:00:111
27073993934,3cyclictest9-21ksoftirqd/010:05:010
27073993934,3cyclictest9-21ksoftirqd/007:19:590
27073993934,2cyclictest9-21ksoftirqd/008:20:000
27073993933,3cyclictest9-21ksoftirqd/008:34:590
27075993832,4cyclictest33-21ksoftirqd/212:37:202
27075993831,4cyclictest33-21ksoftirqd/212:15:182
2707499381,35cyclictest24328-21cat08:10:001
27073993833,3cyclictest9-21ksoftirqd/011:15:000
27075993715,20cyclictest0-21swapper/207:45:142
27074993731,4cyclictest25-21ksoftirqd/109:32:301
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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