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2026-08-20 - 17:08
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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 Thu Aug 20, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591204170,23phc2sys0-21swapper/307:09:553
240402202169,21sleep20-21swapper/207:09:272
237732201167,23sleep10-21swapper/107:05:561
237452200166,22sleep00-21swapper/007:05:350
2527721450,5sleep12438099cyclictest09:20:181
24382996425,7cyclictest41-21ksoftirqd/310:45:013
24380996328,8cyclictest25-21ksoftirqd/112:00:001
24382996229,8cyclictest41-21ksoftirqd/312:15:003
76482610,6sleep32438299cyclictest07:40:163
24382996128,7cyclictest41-21ksoftirqd/312:00:003
24382996126,4cyclictest41-21ksoftirqd/308:50:013
24380996128,4cyclictest25-21ksoftirqd/110:00:011
24382996026,3cyclictest41-21ksoftirqd/311:45:003
24382996025,8cyclictest41-21ksoftirqd/308:25:233
24382996025,8cyclictest41-21ksoftirqd/308:25:233
24382995923,8cyclictest41-21ksoftirqd/308:05:233
24382995826,8cyclictest41-21ksoftirqd/311:25:003
24382995824,8cyclictest41-21ksoftirqd/312:35:003
24380995830,6cyclictest25-21ksoftirqd/108:30:001
24380995830,6cyclictest25-21ksoftirqd/108:30:001
24380995823,8cyclictest25-21ksoftirqd/111:45:231
24382995723,8cyclictest41-21ksoftirqd/308:20:213
24380995728,7cyclictest25-21ksoftirqd/110:35:011
24382995626,8cyclictest41-21ksoftirqd/311:35:173
24382995625,4cyclictest41-21ksoftirqd/312:15:173
24382995621,8cyclictest41-21ksoftirqd/310:35:013
24382995619,6cyclictest41-21ksoftirqd/312:00:243
24380995628,4cyclictest25-21ksoftirqd/112:30:161
24380995625,4cyclictest25-21ksoftirqd/108:00:241
24380995624,4cyclictest25-21ksoftirqd/108:15:261
24380995623,8cyclictest25-21ksoftirqd/109:01:551
24380995620,4cyclictest25-21ksoftirqd/111:30:191
188122560,6sleep22438199cyclictest10:11:552
138491560,1ptp4l401ktimersoftd/310:24:473
138491560,1ptp4l401ktimersoftd/309:36:413
24382995526,4cyclictest41-21ksoftirqd/309:30:013
24382995522,9cyclictest41-21ksoftirqd/310:15:223
24382995522,8cyclictest41-21ksoftirqd/309:55:203
24382995519,8cyclictest41-21ksoftirqd/307:45:183
24382995519,8cyclictest41-21ksoftirqd/307:45:183
24380995526,6cyclictest25-21ksoftirqd/109:50:151
24380995524,10cyclictest25-21ksoftirqd/108:35:191
24380995523,7cyclictest25-21ksoftirqd/108:10:011
24380995521,3cyclictest25-21ksoftirqd/108:50:191
24380995516,8cyclictest25-21ksoftirqd/110:55:161
24382995423,8cyclictest41-21ksoftirqd/310:35:153
24382995422,7cyclictest41-21ksoftirqd/312:20:223
24380995428,7cyclictest25-21ksoftirqd/108:10:191
24380995418,4cyclictest25-21ksoftirqd/111:40:241
24380995414,9cyclictest25-21ksoftirqd/111:15:181
24380995414,8cyclictest25-21ksoftirqd/110:45:171
24380995412,10cyclictest25-21ksoftirqd/110:40:191
24382995327,7cyclictest41-21ksoftirqd/309:30:193
24382995323,4cyclictest41-21ksoftirqd/307:55:173
24382995322,4cyclictest41-21ksoftirqd/310:15:003
24382995321,9cyclictest41-21ksoftirqd/311:50:003
24382995320,8cyclictest41-21ksoftirqd/310:00:273
24382995320,8cyclictest41-21ksoftirqd/309:20:003
24382995320,8cyclictest41-21ksoftirqd/308:35:143
24380995327,7cyclictest25-21ksoftirqd/110:10:181
24380995324,4cyclictest25-21ksoftirqd/112:05:131
24380995323,6cyclictest25-21ksoftirqd/111:25:241
24380995323,4cyclictest25-21ksoftirqd/109:45:151
24380995321,8cyclictest25-21ksoftirqd/109:15:001
24380995321,8cyclictest25-21ksoftirqd/109:15:001
24380995320,4cyclictest25-21ksoftirqd/111:50:271
24380995319,8cyclictest25-21ksoftirqd/110:20:001
24380995318,4cyclictest25-21ksoftirqd/110:25:121
24380995318,4cyclictest25-21ksoftirqd/110:25:111
24380995315,7cyclictest25-21ksoftirqd/112:15:141
24380995313,9cyclictest25-21ksoftirqd/112:00:221
24380995312,8cyclictest25-21ksoftirqd/108:40:271
138491530,1ptp4l401ktimersoftd/312:26:103
24382995238,7cyclictest41-21ksoftirqd/311:10:013
24382995238,7cyclictest41-21ksoftirqd/311:10:003
24382995226,7cyclictest41-21ksoftirqd/308:10:153
24382995225,3cyclictest41-21ksoftirqd/308:15:193
24382995224,7cyclictest41-21ksoftirqd/311:00:223
24382995222,7cyclictest41-21ksoftirqd/307:50:153
24382995222,3cyclictest41-21ksoftirqd/309:40:263
24382995221,8cyclictest41-21ksoftirqd/307:25:133
24382995221,4cyclictest41-21ksoftirqd/308:50:153
24382995220,4cyclictest41-21ksoftirqd/309:00:153
24382995214,10cyclictest41-21ksoftirqd/310:50:253
24380995225,6cyclictest25-21ksoftirqd/109:15:191
24380995223,4cyclictest25-21ksoftirqd/108:55:201
24380995217,4cyclictest25-21ksoftirqd/112:25:231
24380995217,4cyclictest25-21ksoftirqd/109:05:211
24380995217,4cyclictest25-21ksoftirqd/108:20:121
24380995217,3cyclictest25-21ksoftirqd/110:20:131
24380995212,7cyclictest25-21ksoftirqd/110:50:261
24382995121,8cyclictest41-21ksoftirqd/308:30:173
24382995121,4cyclictest41-21ksoftirqd/307:15:163
24382995120,4cyclictest41-21ksoftirqd/309:05:273
24382995119,4cyclictest41-21ksoftirqd/310:55:123
24382995119,4cyclictest41-21ksoftirqd/309:10:133
24382995119,4cyclictest41-21ksoftirqd/309:10:133
24382995118,4cyclictest41-21ksoftirqd/311:20:013
24382995118,4cyclictest41-21ksoftirqd/309:50:133
24382995118,4cyclictest41-21ksoftirqd/308:00:223
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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