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2026-09-17 - 13:40
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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 Sep 17, 2026 00:45:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591228199,19phc2sys0-21swapper/319:07:593
48812227162,21sleep20-21swapper/219:09:592
46972205171,22sleep10-21swapper/119:07:411
26682203168,23sleep00-21swapper/019:05:110
138591136112,13phc2sys0-21swapper/319:10:003
138591136112,13phc2sys0-21swapper/319:10:003
5175997135,9cyclictest25-21ksoftirqd/119:25:251
138491680,1ptp4l401ktimersoftd/320:16:173
5174996623,8cyclictest9-21ksoftirqd/000:15:170
5175996432,3cyclictest25-21ksoftirqd/122:25:231
5175996332,4cyclictest25-21ksoftirqd/122:45:251
5175996331,7cyclictest25-21ksoftirqd/122:40:141
5175996331,4cyclictest25-21ksoftirqd/123:40:241
5175996331,4cyclictest25-21ksoftirqd/119:20:141
5175996231,3cyclictest25-21ksoftirqd/123:45:191
5175996231,3cyclictest25-21ksoftirqd/100:30:001
5174996231,4cyclictest9-21ksoftirqd/021:30:120
5175996135,4cyclictest25-21ksoftirqd/119:30:171
5175996133,9cyclictest25-21ksoftirqd/119:35:251
5175996131,7cyclictest25-21ksoftirqd/120:15:281
5175996128,4cyclictest25-21ksoftirqd/121:20:201
5175996127,3cyclictest25-21ksoftirqd/121:35:261
5174996131,4cyclictest9-21ksoftirqd/021:40:270
5174996122,11cyclictest9-21ksoftirqd/019:15:000
5174996122,11cyclictest9-21ksoftirqd/019:15:000
174532610,5sleep017459-21cpuspeed_turbos22:50:130
5175996033,4cyclictest25-21ksoftirqd/119:40:161
5175996032,7cyclictest25-21ksoftirqd/122:50:201
5175996028,3cyclictest25-21ksoftirqd/121:10:171
5175996027,6cyclictest25-21ksoftirqd/122:30:191
5175996023,4cyclictest25-21ksoftirqd/121:05:221
5175995929,3cyclictest25-21ksoftirqd/100:15:271
5175995928,4cyclictest25-21ksoftirqd/119:15:171
5174995930,4cyclictest9-21ksoftirqd/023:30:250
5174995928,3cyclictest9-21ksoftirqd/023:00:010
5174995914,4cyclictest9-21ksoftirqd/020:29:590
5175995830,3cyclictest25-21ksoftirqd/122:55:141
5175995829,3cyclictest25-21ksoftirqd/120:00:121
5175995827,4cyclictest25-21ksoftirqd/123:20:241
5175995827,4cyclictest25-21ksoftirqd/120:05:211
5175995826,3cyclictest25-21ksoftirqd/100:10:001
5175995729,3cyclictest25-21ksoftirqd/120:50:151
5175995728,4cyclictest25-21ksoftirqd/120:40:231
5175995725,4cyclictest25-21ksoftirqd/122:15:261
5175995723,4cyclictest25-21ksoftirqd/121:45:241
5175995627,4cyclictest25-21ksoftirqd/120:30:001
5175995625,4cyclictest25-21ksoftirqd/100:20:141
5174995626,4cyclictest9-21ksoftirqd/023:45:240
5174995620,3cyclictest121rcu_preempt23:20:240
5175995526,3cyclictest25-21ksoftirqd/100:40:001
5175995525,3cyclictest25-21ksoftirqd/123:00:261
5174995529,3cyclictest9-21ksoftirqd/019:35:230
5175995426,3cyclictest25-21ksoftirqd/119:55:241
5175995425,4cyclictest25-21ksoftirqd/123:25:251
5175995425,3cyclictest25-21ksoftirqd/123:05:141
5175995424,4cyclictest25-21ksoftirqd/100:10:121
5175995423,4cyclictest25-21ksoftirqd/120:35:211
5175995423,4cyclictest25-21ksoftirqd/120:30:251
5175995423,3cyclictest25-21ksoftirqd/120:20:121
5174995423,3cyclictest121rcu_preempt22:40:230
5175995324,4cyclictest25-21ksoftirqd/120:45:201
5175995323,3cyclictest25-21ksoftirqd/121:40:261
5175995322,3cyclictest25-21ksoftirqd/123:35:131
5175995321,6cyclictest25-21ksoftirqd/122:05:251
5175995321,3cyclictest25-21ksoftirqd/122:00:231
303252530,2sleep20-21swapper/220:00:122
5175995221,3cyclictest25-21ksoftirqd/123:20:001
517499524,8cyclictest9-21ksoftirqd/000:10:180
5174995226,4cyclictest9-21ksoftirqd/020:45:270
5174995217,9cyclictest9-21ksoftirqd/000:40:000
5175995122,4cyclictest25-21ksoftirqd/119:45:131
5175995121,4cyclictest25-21ksoftirqd/123:55:161
5175995121,3cyclictest25-21ksoftirqd/100:30:171
5175995119,3cyclictest25-21ksoftirqd/121:15:281
5175995115,4cyclictest25-21ksoftirqd/121:30:201
5174995122,3cyclictest9-21ksoftirqd/022:00:130
5174995112,2cyclictest121rcu_preempt00:02:260
5177995034,13cyclictest41-21ksoftirqd/323:00:003
5175995032,7cyclictest25-21ksoftirqd/119:50:211
5175995020,3cyclictest25-21ksoftirqd/123:10:281
5175995020,3cyclictest25-21ksoftirqd/119:10:151
5175995020,3cyclictest25-21ksoftirqd/119:10:151
5175995015,5cyclictest25-21ksoftirqd/123:50:221
5175994920,3cyclictest25-21ksoftirqd/120:55:131
5175994916,7cyclictest25-21ksoftirqd/122:35:261
5174994935,4cyclictest9-21ksoftirqd/023:15:250
5174994935,4cyclictest9-21ksoftirqd/021:55:000
5174994925,2cyclictest9-21ksoftirqd/023:05:270
5174994922,4cyclictest9-21ksoftirqd/019:48:110
5175994820,3cyclictest25-21ksoftirqd/100:00:181
5175994818,5cyclictest25-21ksoftirqd/121:00:131
5175994817,4cyclictest25-21ksoftirqd/121:30:011
517499485,3cyclictest9-21ksoftirqd/020:00:120
5174994834,3cyclictest9-21ksoftirqd/023:10:180
5174994834,3cyclictest9-21ksoftirqd/020:20:170
5174994822,3cyclictest9-21ksoftirqd/022:27:400
5174994818,4cyclictest9-21ksoftirqd/022:45:150
5174994810,10cyclictest9-21ksoftirqd/020:35:250
5176994726,5cyclictest33-21ksoftirqd/200:20:012
517599478,4cyclictest25-21ksoftirqd/122:10:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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