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2026-09-22 - 09:06
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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 Tue Sep 22, 2026 00:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
168762202169,22sleep10-21swapper/119:06:491
138591202167,23phc2sys0-21swapper/319:06:113
169902200168,21sleep20-21swapper/219:08:142
168872199165,22sleep00-21swapper/019:06:550
1739421690,4sleep00-21swapper/019:10:010
171262160122,13sleep30-21swapper/319:10:003
27452630,8sleep21742099cyclictest19:45:132
70792610,6sleep31742199cyclictest00:15:013
306642570,6sleep21742099cyclictest22:50:202
279942540,2sleep20-21swapper/223:50:202
77312490,6sleep21742099cyclictest21:00:152
325342490,2sleep00-21swapper/019:40:140
325342490,2sleep00-21swapper/019:40:140
138491440,0ptp4l401ktimersoftd/322:45:123
138491440,0ptp4l401ktimersoftd/319:50:573
138491430,0ptp4l401ktimersoftd/321:04:343
138491430,0ptp4l401ktimersoftd/320:48:383
138491430,0ptp4l401ktimersoftd/319:55:193
138491430,0ptp4l401ktimersoftd/319:35:483
17420994237,3cyclictest420-21rs:main2
17420994213,5cyclictest33-21ksoftirqd/221:55:222
50798410,1rtkit-daemon506-21rtkit-daemon00:00:301
17420994128,10cyclictest33-21ksoftirqd/221:15:242
138491410,0ptp4l401ktimersoftd/323:15:283
138491410,0ptp4l401ktimersoftd/319:20:273
138491410,0ptp4l401ktimersoftd/300:25:013
1742099409,4cyclictest33-21ksoftirqd/222:30:222
17420994029,9cyclictest33-21ksoftirqd/220:05:262
17420994017,10cyclictest33-21ksoftirqd/219:10:142
1741999400,1cyclictest0-21swapper/123:15:131
17421993910,28cyclictest28772-21kworker/3:223:13:433
1741999390,37cyclictest0-21swapper/120:50:241
1742099389,3cyclictest33-21ksoftirqd/220:55:202
1742099387,4cyclictest33-21ksoftirqd/200:00:012
1742099385,6cyclictest33-21ksoftirqd/220:15:232
17420993835,2cyclictest33-21ksoftirqd/222:30:002
17420993835,2cyclictest33-21ksoftirqd/200:40:002
17420993833,3cyclictest33-21ksoftirqd/222:10:262
17420993832,4cyclictest33-21ksoftirqd/220:36:322
17420993831,4cyclictest33-21ksoftirqd/221:32:442
17420993811,3cyclictest33-21ksoftirqd/222:40:272
17418993831,4cyclictest9-21ksoftirqd/019:45:110
1742199373,16cyclictest4643-21cat00:10:013
1742099373,3cyclictest33-21ksoftirqd/222:15:242
17420993732,3cyclictest33-21ksoftirqd/223:20:002
17420993732,3cyclictest33-21ksoftirqd/220:50:002
17420993732,3cyclictest33-21ksoftirqd/220:10:032
17420993732,3cyclictest33-21ksoftirqd/219:45:012
17420993732,3cyclictest33-21ksoftirqd/219:45:012
17420993731,3cyclictest33-21ksoftirqd/221:05:122
17420993728,7cyclictest33-21ksoftirqd/221:25:122
1742099371,9cyclictest33-21ksoftirqd/200:15:282
1742099371,5cyclictest33-21ksoftirqd/223:05:002
1741999370,36cyclictest0-21swapper/122:05:231
17418993731,4cyclictest9-21ksoftirqd/021:38:400
17418993731,3cyclictest9-21ksoftirqd/022:50:000
138491370,0ptp4l401ktimersoftd/323:35:253
17421993630,4cyclictest41-21ksoftirqd/322:29:263
17421993630,4cyclictest41-21ksoftirqd/320:53:013
17421993630,4cyclictest41-21ksoftirqd/320:36:523
17421993630,4cyclictest41-21ksoftirqd/320:08:483
17420993632,2cyclictest33-21ksoftirqd/219:25:242
17420993631,3cyclictest33-21ksoftirqd/222:47:202
17420993631,3cyclictest33-21ksoftirqd/222:25:012
17420993631,3cyclictest33-21ksoftirqd/219:35:002
17420993631,2cyclictest33-21ksoftirqd/223:40:002
17420993630,4cyclictest33-21ksoftirqd/200:13:352
1742099361,7cyclictest33-21ksoftirqd/220:25:202
1742099361,3cyclictest33-21ksoftirqd/223:20:172
1742099361,2cyclictest33-21ksoftirqd/220:50:232
1742099361,10cyclictest33-21ksoftirqd/223:05:272
17419993630,4cyclictest25-21ksoftirqd/122:53:311
17419993630,4cyclictest25-21ksoftirqd/122:26:191
17419993630,4cyclictest25-21ksoftirqd/120:44:541
17419993630,4cyclictest25-21ksoftirqd/120:17:541
17418993630,4cyclictest9-21ksoftirqd/023:56:240
17418993630,4cyclictest9-21ksoftirqd/022:01:550
17418993630,4cyclictest9-21ksoftirqd/021:52:170
17418993630,4cyclictest9-21ksoftirqd/020:36:340
17418993630,4cyclictest9-21ksoftirqd/019:52:480
17418993629,5cyclictest9-21ksoftirqd/000:33:550
17421993529,4cyclictest41-21ksoftirqd/323:54:273
17421993529,4cyclictest41-21ksoftirqd/323:00:033
17421993529,4cyclictest41-21ksoftirqd/321:22:503
17421993529,4cyclictest41-21ksoftirqd/320:44:243
17421993529,4cyclictest41-21ksoftirqd/320:14:223
17421993529,4cyclictest41-21ksoftirqd/320:03:593
1742199352,16cyclictest7125-21cat22:05:013
17420993531,2cyclictest33-21ksoftirqd/200:30:172
17420993531,2cyclictest33-21ksoftirqd/200:20:142
17420993530,3cyclictest33-21ksoftirqd/223:30:002
17420993530,3cyclictest33-21ksoftirqd/222:00:122
17420993530,3cyclictest33-21ksoftirqd/221:41:242
17420993530,3cyclictest33-21ksoftirqd/221:41:242
17420993530,3cyclictest33-21ksoftirqd/200:06:412
17420993529,4cyclictest33-21ksoftirqd/222:05:422
17420993529,4cyclictest33-21ksoftirqd/219:24:352
17420993529,4cyclictest33-21ksoftirqd/219:17:292
1742099351,4cyclictest33-21ksoftirqd/220:30:152
17419993530,3cyclictest25-21ksoftirqd/100:37:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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