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2026-07-31 - 14:13
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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 Jul 31, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141822230163,23sleep30-21swapper/319:09:573
141682203163,28sleep00-21swapper/019:09:460
140722202168,22sleep20-21swapper/219:08:332
140192202169,22sleep10-21swapper/119:07:501
3202521890,7sleep11447899cyclictest21:55:151
1385919066,15phc2sys0-21swapper/319:10:003
1418628363,11sleep20-21swapper/219:10:002
138491700,3ptp4l13350irq/39-mmc120:15:263
14479996832,7cyclictest33-21ksoftirqd/223:15:232
14479996733,9cyclictest33-21ksoftirqd/222:55:002
14479996622,13cyclictest33-21ksoftirqd/200:00:012
14479996531,7cyclictest33-21ksoftirqd/219:55:242
14479996530,5cyclictest33-21ksoftirqd/219:55:002
14479996333,3cyclictest33-21ksoftirqd/220:45:112
14479996330,4cyclictest33-21ksoftirqd/221:20:012
14479996329,6cyclictest33-21ksoftirqd/221:25:172
14479996329,6cyclictest33-21ksoftirqd/200:05:282
1448099620,17cyclictest24001-21latency_hist21:40:013
14479996231,4cyclictest33-21ksoftirqd/220:20:002
14479996230,4cyclictest33-21ksoftirqd/223:05:272
14479996228,6cyclictest33-21ksoftirqd/200:20:222
14479996130,5cyclictest33-21ksoftirqd/221:20:142
14479996129,4cyclictest33-21ksoftirqd/222:40:232
14479996126,7cyclictest33-21ksoftirqd/220:25:262
14479996123,7cyclictest33-21ksoftirqd/222:40:012
14479996031,4cyclictest33-21ksoftirqd/223:00:192
14479996030,6cyclictest33-21ksoftirqd/221:40:202
14479996030,5cyclictest33-21ksoftirqd/222:05:192
14479996029,7cyclictest33-21ksoftirqd/200:10:012
14479996029,4cyclictest33-21ksoftirqd/200:00:252
14479996029,10cyclictest33-21ksoftirqd/200:35:252
14479996028,7cyclictest33-21ksoftirqd/220:30:182
14479996028,4cyclictest33-21ksoftirqd/220:10:242
14479996027,7cyclictest33-21ksoftirqd/220:35:132
14479996026,4cyclictest33-21ksoftirqd/222:05:012
14479996026,4cyclictest33-21ksoftirqd/222:05:002
14479996025,6cyclictest33-21ksoftirqd/219:25:132
53452590,4sleep2321ktimersoftd/223:10:212
14479995931,3cyclictest33-21ksoftirqd/220:40:222
14479995929,6cyclictest33-21ksoftirqd/221:30:162
14479995929,6cyclictest33-21ksoftirqd/200:25:152
14479995929,5cyclictest33-21ksoftirqd/223:25:272
14479995927,7cyclictest33-21ksoftirqd/223:20:252
14479995927,7cyclictest33-21ksoftirqd/221:03:072
14479995927,6cyclictest33-21ksoftirqd/220:05:152
14479995926,8cyclictest33-21ksoftirqd/221:45:152
14479995926,7cyclictest33-21ksoftirqd/223:35:142
14479995925,6cyclictest33-21ksoftirqd/219:45:192
14479995924,6cyclictest33-21ksoftirqd/221:10:152
14479995830,6cyclictest33-21ksoftirqd/219:30:252
14479995827,6cyclictest33-21ksoftirqd/222:50:002
14479995827,6cyclictest33-21ksoftirqd/220:55:002
14479995827,5cyclictest33-21ksoftirqd/221:50:152
14479995826,7cyclictest33-21ksoftirqd/222:30:142
14479995730,4cyclictest33-21ksoftirqd/223:50:172
14479995729,3cyclictest33-21ksoftirqd/220:55:222
14479995727,6cyclictest33-21ksoftirqd/221:05:252
14479995727,5cyclictest33-21ksoftirqd/222:55:172
14479995727,5cyclictest33-21ksoftirqd/222:25:202
14479995721,6cyclictest33-21ksoftirqd/222:15:132
14479995720,8cyclictest33-21ksoftirqd/222:24:592
116022570,6sleep11447899cyclictest20:10:001
1448099567,7cyclictest25028-21cut21:40:193
1448099565,10cyclictest5747-21ptp4l19:55:243
14479995627,5cyclictest33-21ksoftirqd/219:20:242
14479995627,4cyclictest33-21ksoftirqd/221:55:152
14479995625,6cyclictest33-21ksoftirqd/219:35:262
14479995624,6cyclictest33-21ksoftirqd/222:10:272
14479995624,6cyclictest33-21ksoftirqd/200:30:272
14479995623,6cyclictest33-21ksoftirqd/220:00:132
1448099556,7cyclictest1319-21snmpd21:20:023
14480995515,8cyclictest41-21ksoftirqd/323:55:423
14480995515,3cyclictest41-21ksoftirqd/319:26:193
14480995514,8cyclictest41-21ksoftirqd/323:37:573
14480995514,8cyclictest41-21ksoftirqd/323:34:443
14480995514,8cyclictest41-21ksoftirqd/323:34:443
14480995513,8cyclictest41-21ksoftirqd/323:04:393
14479995534,3cyclictest33-21ksoftirqd/200:15:132
14479995526,7cyclictest33-21ksoftirqd/219:40:162
14479995519,9cyclictest33-21ksoftirqd/223:40:192
14479995512,3cyclictest33-21ksoftirqd/223:45:242
1448099546,7cyclictest16627-21sed22:30:003
14480995414,8cyclictest41-21ksoftirqd/321:45:433
14480995414,3cyclictest41-21ksoftirqd/323:49:033
14480995413,8cyclictest41-21ksoftirqd/323:25:373
14480995413,8cyclictest41-21ksoftirqd/320:22:243
1448099540,11cyclictest7255-21sed22:10:133
14479995426,7cyclictest33-21ksoftirqd/220:20:132
1448099536,6cyclictest8655-21sed20:00:273
1448099536,6cyclictest20754-21switchtime23:40:263
1448099535,7cyclictest1529-21latency_hist20:55:003
1448099534,6cyclictest14001-21gpgv21:20:013
14480995314,6cyclictest41-21ksoftirqd/319:16:493
14480995312,6cyclictest41-21ksoftirqd/319:35:193
14479995321,4cyclictest33-21ksoftirqd/223:30:222
14479995321,4cyclictest33-21ksoftirqd/223:30:222
1448099526,7cyclictest19536-21cstates20:25:133
1448099525,7cyclictest5264-21cut21:00:193
1448099520,11cyclictest26374-21taskset20:38:023
1448099515,6cyclictest31529-21sort21:54:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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