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2025-12-29 - 21:43
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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 50 highest latencies:
System rackdslot3.osadl.org (updated Mon Dec 29, 2025 12:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205171,23phc2sys0-21swapper/307:07:473
115282204169,24sleep00-21swapper/007:09:340
112412202168,23sleep20-21swapper/207:05:502
113272199166,22sleep10-21swapper/107:06:561
235421360,7sleep21186499cyclictest12:25:212
1941221180,3sleep31186599cyclictest11:55:133
11862997134,6cyclictest9-21ksoftirqd/011:20:000
11862996935,5cyclictest9-21ksoftirqd/012:40:000
11862996833,5cyclictest9-21ksoftirqd/007:40:000
11862996831,6cyclictest9-21ksoftirqd/010:30:000
11865996524,10cyclictest41-21ksoftirqd/308:50:003
11862996532,5cyclictest9-21ksoftirqd/012:00:000
11862996531,4cyclictest9-21ksoftirqd/008:09:590
11865996428,7cyclictest41-21ksoftirqd/310:10:003
11865996427,7cyclictest41-21ksoftirqd/308:55:183
11865996427,7cyclictest41-21ksoftirqd/308:55:173
11864996423,4cyclictest33-21ksoftirqd/207:15:222
11865996331,7cyclictest41-21ksoftirqd/307:25:203
11865996331,3cyclictest41-21ksoftirqd/311:05:123
11862996328,6cyclictest9-21ksoftirqd/009:54:590
11862996326,7cyclictest9-21ksoftirqd/011:45:230
11865996222,3cyclictest41-21ksoftirqd/312:35:013
11865996221,9cyclictest41-21ksoftirqd/310:40:263
11864996228,6cyclictest33-21ksoftirqd/212:10:142
11862996230,7cyclictest9-21ksoftirqd/007:15:140
11862996230,6cyclictest9-21ksoftirqd/010:55:210
11862996229,6cyclictest9-21ksoftirqd/012:00:160
11862996229,4cyclictest9-21ksoftirqd/008:00:180
11865996132,7cyclictest41-21ksoftirqd/309:05:163
11865996129,6cyclictest41-21ksoftirqd/309:10:183
11864996131,5cyclictest33-21ksoftirqd/207:45:002
11864996130,7cyclictest33-21ksoftirqd/211:30:152
11864996129,7cyclictest33-21ksoftirqd/208:25:232
11862996129,6cyclictest9-21ksoftirqd/011:30:270
11862996127,8cyclictest9-21ksoftirqd/010:35:220
11862996127,6cyclictest9-21ksoftirqd/008:50:140
11862996127,6cyclictest9-21ksoftirqd/008:50:130
11862996126,9cyclictest9-21ksoftirqd/007:10:270
11862996124,8cyclictest9-21ksoftirqd/010:45:010
11865996030,7cyclictest41-21ksoftirqd/308:10:233
11865996028,6cyclictest41-21ksoftirqd/311:51:223
11865996028,6cyclictest41-21ksoftirqd/309:35:143
11865996026,7cyclictest41-21ksoftirqd/311:26:063
11865996026,7cyclictest41-21ksoftirqd/308:05:253
11865996021,10cyclictest41-21ksoftirqd/307:15:193
11865996014,9cyclictest41-21ksoftirqd/312:25:123
11865996014,9cyclictest41-21ksoftirqd/309:40:153
11864996028,4cyclictest33-21ksoftirqd/211:55:132
1186399607,7cyclictest9414-21latency_hist09:20:011
1186399604,54cyclictest0-21swapper/111:17:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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