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2026-04-27 - 21:16
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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 Mon Apr 27, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205170,23phc2sys0-21swapper/307:05:413
283952204170,23sleep10-21swapper/107:05:541
286172200166,23sleep20-21swapper/207:08:492
286402198165,22sleep00-21swapper/007:09:070
2906221810,6sleep02918999cyclictest08:15:220
2906221810,6sleep02918999cyclictest08:15:210
29193998218,62cyclictest19086-21kworker/2:209:05:332
54432630,3sleep15447-21phc2sys09:40:241
29189995923,4cyclictest9-21ksoftirqd/008:50:300
29189995828,4cyclictest9-21ksoftirqd/007:10:220
29189995729,4cyclictest9-21ksoftirqd/008:20:230
29189995727,7cyclictest9-21ksoftirqd/011:25:160
29189995727,7cyclictest9-21ksoftirqd/011:25:160
139391570,1ptp4l401ktimersoftd/311:41:093
29189995633,3cyclictest9-21ksoftirqd/008:35:260
29193995515,38cyclictest22094-21kworker/2:011:30:332
29189995526,4cyclictest9-21ksoftirqd/009:40:350
29189995524,3cyclictest9-21ksoftirqd/010:19:450
29189995523,6cyclictest9-21ksoftirqd/010:30:200
29189995521,4cyclictest9-21ksoftirqd/007:25:230
29189995520,4cyclictest9-21ksoftirqd/008:05:200
29189995519,6cyclictest9-21ksoftirqd/007:50:220
29189995517,6cyclictest9-21ksoftirqd/008:45:250
29189995517,6cyclictest9-21ksoftirqd/007:45:240
29189995517,6cyclictest9-21ksoftirqd/007:45:240
29189995514,7cyclictest9-21ksoftirqd/010:55:140
29189995426,4cyclictest9-21ksoftirqd/012:20:240
29189995425,6cyclictest9-21ksoftirqd/009:00:190
29189995422,3cyclictest9-21ksoftirqd/012:15:180
29189995417,5cyclictest9-21ksoftirqd/011:15:120
29189995415,6cyclictest9-21ksoftirqd/009:45:220
29189995413,6cyclictest9-21ksoftirqd/009:20:270
29189995325,7cyclictest9-21ksoftirqd/009:30:120
29189995324,6cyclictest9-21ksoftirqd/009:05:220
29189995323,4cyclictest9-21ksoftirqd/012:40:010
29189995321,6cyclictest9-21ksoftirqd/011:40:150
29189995316,6cyclictest9-21ksoftirqd/008:10:260
29189995315,6cyclictest9-21ksoftirqd/011:10:250
29189995314,6cyclictest9-21ksoftirqd/010:00:190
29189995314,6cyclictest9-21ksoftirqd/008:30:190
29189995311,6cyclictest9-21ksoftirqd/010:20:140
29189995224,7cyclictest9-21ksoftirqd/011:55:210
29189995224,7cyclictest9-21ksoftirqd/011:55:210
29189995224,4cyclictest9-21ksoftirqd/009:10:160
29189995219,7cyclictest9-21ksoftirqd/010:45:180
29189995219,5cyclictest9-21ksoftirqd/011:35:250
29189995217,4cyclictest9-21ksoftirqd/010:35:180
29189995216,6cyclictest9-21ksoftirqd/007:20:230
29189995216,5cyclictest9-21ksoftirqd/009:15:180
29189995215,5cyclictest9-21ksoftirqd/007:15:240
29189995214,7cyclictest9-21ksoftirqd/010:10:100
29189995213,6cyclictest9-21ksoftirqd/007:30:220
139391520,1ptp4l401ktimersoftd/308:50:053
29189995122,3cyclictest9-21ksoftirqd/011:50:260
29189995121,3cyclictest9-21ksoftirqd/012:00:200
29189995119,7cyclictest9-21ksoftirqd/011:05:140
29189995119,6cyclictest9-21ksoftirqd/009:50:140
29189995115,5cyclictest9-21ksoftirqd/011:00:150
29189995114,5cyclictest9-21ksoftirqd/009:55:240
29189995114,5cyclictest9-21ksoftirqd/009:55:240
17812510,2sleep30-21swapper/307:20:123
29189995024,4cyclictest9-21ksoftirqd/007:40:130
29189995019,8cyclictest9-21ksoftirqd/012:05:050
29189995016,7cyclictest9-21ksoftirqd/011:30:270
29189995013,6cyclictest9-21ksoftirqd/007:35:270
2918999492,3cyclictest9-21ksoftirqd/008:40:160
29189994921,4cyclictest9-21ksoftirqd/012:28:550
29189994921,4cyclictest9-21ksoftirqd/012:28:540
29189994920,4cyclictest9-21ksoftirqd/012:12:290
29189994919,3cyclictest9-21ksoftirqd/008:25:270
29189994916,2cyclictest121rcu_preempt11:46:250
29189994915,6cyclictest9-21ksoftirqd/010:45:000
2918999491,3cyclictest9-21ksoftirqd/011:20:130
2918999483,3cyclictest9-21ksoftirqd/010:50:140
2918999483,3cyclictest9-21ksoftirqd/008:55:190
29189994814,5cyclictest9-21ksoftirqd/009:25:230
2918999481,3cyclictest9-21ksoftirqd/007:55:240
2918999473,3cyclictest9-21ksoftirqd/008:00:100
2918999471,3cyclictest9-21ksoftirqd/009:35:230
2918999461,3cyclictest9-21ksoftirqd/012:30:150
29189994511,5cyclictest9-21ksoftirqd/010:25:150
29189994511,5cyclictest9-21ksoftirqd/010:25:150
139391450,1ptp4l401ktimersoftd/311:15:273
57898440,8rtkit-daemon0-21swapper/208:13:282
139391440,0ptp4l401ktimersoftd/310:30:243
139391430,0ptp4l401ktimersoftd/312:04:253
57898420,9rtkit-daemon0-21swapper/311:39:413
29193994213,27cyclictest32188-21kworker/2:108:40:232
2918999426,5cyclictest9-21ksoftirqd/010:05:130
29194994134,4cyclictest41-21ksoftirqd/310:40:013
57898400,8rtkit-daemon0-21swapper/210:33:292
29191993933,4cyclictest25-21ksoftirqd/110:02:541
139391390,0ptp4l401ktimersoftd/310:00:273
29194993832,3cyclictest41-21ksoftirqd/309:05:193
29194993831,5cyclictest41-21ksoftirqd/309:00:183
139391380,0ptp4l401ktimersoftd/308:05:013
57898370,7rtkit-daemon0-21swapper/309:31:303
57898370,5rtkit-daemon0-21swapper/208:46:392
29194993731,3cyclictest41-21ksoftirqd/312:20:003
29191993731,4cyclictest25-21ksoftirqd/110:20:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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