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2026-08-16 - 19:22
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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 rackdslot3.osadl.org (updated Sun Aug 16, 2026 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491232168,53phc2sys0-21swapper/307:06:493
190942213147,22sleep10-21swapper/107:07:511
191002205171,23sleep20-21swapper/207:07:572
189272202168,23sleep00-21swapper/007:05:420
1253621690,6sleep01955999cyclictest08:00:240
2800421640,5sleep31956299cyclictest07:25:263
2774221520,6sleep01955999cyclictest10:50:140
173052680,7sleep01955999cyclictest11:35:150
19560996733,4cyclictest25-21ksoftirqd/110:05:001
19560996528,9cyclictest25-21ksoftirqd/108:05:191
19560996430,7cyclictest25-21ksoftirqd/108:50:001
19560996429,4cyclictest25-21ksoftirqd/109:25:011
139391640,1ptp4l401ktimersoftd/312:29:123
19560996332,8cyclictest25-21ksoftirqd/111:55:281
19560996330,4cyclictest25-21ksoftirqd/111:05:001
19560996327,7cyclictest25-21ksoftirqd/107:30:261
19560996228,4cyclictest25-21ksoftirqd/107:55:001
19560996222,6cyclictest25-21ksoftirqd/107:20:241
19560996220,8cyclictest25-21ksoftirqd/111:40:141
19560996129,4cyclictest25-21ksoftirqd/109:15:011
19560996129,4cyclictest25-21ksoftirqd/108:20:251
19560996128,5cyclictest25-21ksoftirqd/111:20:151
19560996127,6cyclictest25-21ksoftirqd/107:25:211
19560996127,10cyclictest25-21ksoftirqd/111:45:211
19560996120,10cyclictest25-21ksoftirqd/108:55:241
19560996030,9cyclictest25-21ksoftirqd/110:20:001
19560996028,6cyclictest25-21ksoftirqd/109:25:191
19560996027,8cyclictest25-21ksoftirqd/111:05:261
19560995926,4cyclictest25-21ksoftirqd/109:35:251
19560995924,5cyclictest25-21ksoftirqd/109:00:161
19560995923,4cyclictest25-21ksoftirqd/111:15:021
19560995923,4cyclictest25-21ksoftirqd/111:15:021
19560995920,4cyclictest25-21ksoftirqd/110:05:281
19560995827,8cyclictest25-21ksoftirqd/108:30:151
19560995826,8cyclictest25-21ksoftirqd/110:35:261
19560995826,4cyclictest25-21ksoftirqd/112:20:141
19560995824,8cyclictest25-21ksoftirqd/107:10:161
19560995824,4cyclictest25-21ksoftirqd/111:50:151
19560995822,8cyclictest25-21ksoftirqd/110:50:181
139391580,1ptp4l401ktimersoftd/311:20:423
34892570,6sleep21956199cyclictest12:15:132
213932570,2sleep20-21swapper/208:20:212
19560995729,10cyclictest25-21ksoftirqd/107:40:151
19560995728,9cyclictest25-21ksoftirqd/111:25:161
19560995725,4cyclictest25-21ksoftirqd/107:55:191
19560995723,4cyclictest25-21ksoftirqd/109:40:251
19560995719,4cyclictest25-21ksoftirqd/110:10:131
19560995718,10cyclictest25-21ksoftirqd/112:00:191
19560995629,9cyclictest25-21ksoftirqd/112:35:191
19560995625,4cyclictest25-21ksoftirqd/109:15:171
19560995624,4cyclictest25-21ksoftirqd/108:25:171
19560995623,8cyclictest25-21ksoftirqd/112:05:251
19560995623,8cyclictest25-21ksoftirqd/112:05:251
19560995618,4cyclictest25-21ksoftirqd/109:30:261
19560995526,8cyclictest25-21ksoftirqd/110:45:151
19560995526,8cyclictest25-21ksoftirqd/110:45:151
19560995522,7cyclictest25-21ksoftirqd/108:00:141
19560995518,8cyclictest25-21ksoftirqd/110:20:241
19560995423,9cyclictest25-21ksoftirqd/112:30:131
19560995422,8cyclictest25-21ksoftirqd/109:55:141
1956099535,8cyclictest25-21ksoftirqd/108:10:251
19560995327,7cyclictest25-21ksoftirqd/110:25:261
19560995323,9cyclictest25-21ksoftirqd/109:05:241
1956099527,3cyclictest25-21ksoftirqd/108:20:001
1956099525,7cyclictest25-21ksoftirqd/111:30:131
1956099524,7cyclictest25-21ksoftirqd/107:35:171
19560995223,6cyclictest25-21ksoftirqd/112:15:001
19560995221,8cyclictest25-21ksoftirqd/108:50:161
19560995217,8cyclictest25-21ksoftirqd/107:15:141
1956099515,9cyclictest25-21ksoftirqd/110:30:161
1956099515,9cyclictest25-21ksoftirqd/108:40:281
1956099514,7cyclictest25-21ksoftirqd/111:35:231
1956099514,7cyclictest25-21ksoftirqd/108:35:231
1956099513,7cyclictest25-21ksoftirqd/110:40:281
19560995121,8cyclictest25-21ksoftirqd/112:25:181
19560995121,8cyclictest25-21ksoftirqd/109:55:021
19561995031,17cyclictest33-21ksoftirqd/210:40:002
1956099505,10cyclictest25-21ksoftirqd/110:55:241
1956099504,7cyclictest25-21ksoftirqd/109:45:151
1956099504,7cyclictest25-21ksoftirqd/107:45:171
19560994917,4cyclictest25-21ksoftirqd/112:18:041
19559994943,3cyclictest207-21systemd-journal08:34:590
1956099482,4cyclictest25-21ksoftirqd/111:10:251
139391450,0ptp4l401ktimersoftd/311:01:063
139391420,1ptp4l401ktimersoftd/311:43:423
139391420,0ptp4l401ktimersoftd/307:35:333
139391410,0ptp4l401ktimersoftd/309:50:253
134391410,1getstats0-21swapper/310:49:373
134391410,1getstats0-21swapper/310:49:373
19562994035,3cyclictest18109-21cron08:15:003
19561994030,8cyclictest33-21ksoftirqd/208:18:362
19559994035,3cyclictest19071-21dump-pmu-power09:25:000
1955999400,37cyclictest14232-21cron11:30:000
139391400,16ptp4l401ktimersoftd/311:15:283
139391400,16ptp4l401ktimersoftd/311:15:283
139391400,0ptp4l401ktimersoftd/308:20:263
19561993934,3cyclictest33-21ksoftirqd/207:40:012
139391390,0ptp4l401ktimersoftd/310:55:203
19561993833,3cyclictest33-21ksoftirqd/210:15:012
139391380,0ptp4l401ktimersoftd/311:35:263
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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