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2026-05-18 - 19:23
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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 May 18, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491205172,22phc2sys0-21swapper/307:06:413
279912201168,22sleep10-21swapper/107:07:201
279902201168,22sleep00-21swapper/007:07:190
279972200168,21sleep20-21swapper/207:07:252
2127521450,4sleep32850199cyclictest12:30:183
129682550,1sleep10-21swapper/108:50:211
28499995319,4cyclictest25-21ksoftirqd/107:40:211
28412530,2sleep00-21swapper/007:20:260
28499995219,8cyclictest25-21ksoftirqd/108:30:161
28499995219,7cyclictest25-21ksoftirqd/108:40:251
28499995219,4cyclictest25-21ksoftirqd/109:15:141
28499995218,4cyclictest25-21ksoftirqd/107:20:251
28499995218,3cyclictest25-21ksoftirqd/107:45:261
28499995213,7cyclictest25-21ksoftirqd/110:55:191
28499995213,7cyclictest25-21ksoftirqd/110:55:191
102972520,3sleep30-21swapper/311:00:173
28499995119,3cyclictest25-21ksoftirqd/109:00:261
28499995117,8cyclictest25-21ksoftirqd/107:30:191
28499995117,4cyclictest25-21ksoftirqd/108:25:001
28499995117,4cyclictest25-21ksoftirqd/108:24:591
28499995114,6cyclictest25-21ksoftirqd/111:30:281
28499995111,7cyclictest25-21ksoftirqd/111:40:171
28499995111,10cyclictest25-21ksoftirqd/112:30:241
2849999508,2cyclictest25-21ksoftirqd/109:45:251
28499995021,3cyclictest25-21ksoftirqd/110:00:131
28499995018,4cyclictest25-21ksoftirqd/109:50:131
28499995017,8cyclictest25-21ksoftirqd/112:15:161
28499995017,3cyclictest25-21ksoftirqd/111:05:231
28499995016,4cyclictest25-21ksoftirqd/112:00:171
28499995016,3cyclictest25-21ksoftirqd/107:35:171
28499995015,8cyclictest25-21ksoftirqd/112:35:141
28499995014,8cyclictest25-21ksoftirqd/110:25:261
28499995014,8cyclictest25-21ksoftirqd/108:55:271
28499995014,8cyclictest25-21ksoftirqd/107:50:201
28499995012,9cyclictest25-21ksoftirqd/108:35:231
28499994932,4cyclictest25-21ksoftirqd/111:45:241
28499994921,7cyclictest25-21ksoftirqd/110:00:001
28499994921,3cyclictest25-21ksoftirqd/109:10:141
28499994917,7cyclictest25-21ksoftirqd/112:05:291
28499994917,6cyclictest25-21ksoftirqd/111:15:191
28499994917,3cyclictest25-21ksoftirqd/110:20:141
28499994916,7cyclictest25-21ksoftirqd/107:10:271
28499994916,4cyclictest25-21ksoftirqd/108:00:161
28499994916,3cyclictest25-21ksoftirqd/112:10:241
28499994915,8cyclictest25-21ksoftirqd/110:15:141
28499994915,8cyclictest25-21ksoftirqd/109:35:201
28499994910,7cyclictest25-21ksoftirqd/108:05:151
28499994838,3cyclictest25-21ksoftirqd/112:25:201
28499994818,7cyclictest25-21ksoftirqd/108:25:231
28499994816,7cyclictest25-21ksoftirqd/110:45:171
28499994815,7cyclictest25-21ksoftirqd/109:45:011
28499994814,8cyclictest25-21ksoftirqd/111:25:201
28499994814,8cyclictest25-21ksoftirqd/110:35:121
28499994718,11cyclictest25-21ksoftirqd/111:00:151
28499994714,8cyclictest25-21ksoftirqd/110:10:201
28499994714,7cyclictest25-21ksoftirqd/109:25:251
28499994714,3cyclictest25-21ksoftirqd/111:10:191
28499994713,8cyclictest25-21ksoftirqd/110:50:231
28499994617,6cyclictest25-21ksoftirqd/111:35:261
28499994617,4cyclictest25-21ksoftirqd/108:13:101
28499994613,4cyclictest25-21ksoftirqd/107:55:131
28499994612,9cyclictest25-21ksoftirqd/107:25:111
28499994612,8cyclictest25-21ksoftirqd/108:45:221
139391460,1ptp4l391rcuc/309:00:323
28500994540,3cyclictest33-21ksoftirqd/211:55:002
28500994540,3cyclictest33-21ksoftirqd/211:55:002
28500994527,9cyclictest33-21ksoftirqd/207:25:132
28499994512,9cyclictest25-21ksoftirqd/108:20:001
2849999444,2cyclictest25-21ksoftirqd/107:15:141
2849999441,3cyclictest25-21ksoftirqd/109:30:151
2849999440,2cyclictest25-21ksoftirqd/112:20:261
2849999434,8cyclictest5717-21cron12:00:011
139391430,0ptp4l401ktimersoftd/310:28:533
2849999421,3cyclictest121rcu_preempt10:39:591
139391420,2ptp4l0-21swapper/307:38:593
139391420,0ptp4l401ktimersoftd/312:11:183
139391420,0ptp4l401ktimersoftd/311:35:303
28501994123,3cyclictest41-21ksoftirqd/307:25:133
28500994127,4cyclictest33-21ksoftirqd/210:00:152
28500994125,4cyclictest33-21ksoftirqd/212:20:012
2849999415,2cyclictest25-21ksoftirqd/111:50:221
2849999415,2cyclictest25-21ksoftirqd/111:50:221
2849999413,3cyclictest121rcu_preempt10:05:271
28499994114,9cyclictest25-21ksoftirqd/110:30:131
28498994136,2cyclictest9-21ksoftirqd/009:40:000
139391410,1ptp4l401ktimersoftd/307:45:363
139391410,0ptp4l401ktimersoftd/309:28:473
28500994035,3cyclictest33-21ksoftirqd/211:10:012
2849999401,8cyclictest25-21ksoftirqd/109:20:171
2849899404,3cyclictest121rcu_preempt09:35:010
28498994033,4cyclictest9-21ksoftirqd/009:19:590
139391400,0ptp4l401ktimersoftd/312:23:183
28500993927,9cyclictest33-21ksoftirqd/209:15:192
28499993934,3cyclictest25-21ksoftirqd/111:20:131
139391390,1ptp4l401ktimersoftd/311:07:433
28501993832,4cyclictest41-21ksoftirqd/309:08:573
28500993832,3cyclictest33-21ksoftirqd/212:35:202
28500993817,12cyclictest33-21ksoftirqd/212:10:012
2849999381,2cyclictest25-21ksoftirqd/109:05:091
28500993732,3cyclictest33-21ksoftirqd/207:10:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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