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2026-06-26 - 06:10
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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 rackdslot1.osadl.org (updated Fri Jun 26, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171721570,6sleep2420599cyclictest23:40:262
171721570,6sleep2420599cyclictest23:40:262
1976321510,5sleep1420499cyclictest00:20:171
420499832,78cyclictest28473-21kworker/1:220:05:091
420499762,72cyclictest25273-21kworker/1:021:55:291
134491690,3ptp4l41-21ksoftirqd/322:18:173
134491660,32ptp4l0-21swapper/200:28:282
134491640,4ptp4l0-21swapper/023:50:160
193952600,5sleep00-21swapper/023:10:200
4204995917,40cyclictest23724-21kworker/1:223:05:481
134491590,4ptp4l0-21swapper/320:55:283
134491580,5ptp4l7103-21iostat_ios19:15:182
134491580,4ptp4l0-21swapper/122:36:191
134491570,3ptp4l0-21swapper/223:15:142
134491560,4ptp4l0-21swapper/120:25:251
134491560,3ptp4l0-21swapper/122:52:271
134491560,2ptp4l18751-21tr20:50:123
134491550,9ptp4l0-21swapper/219:26:342
134491550,3ptp4l0-21swapper/021:31:120
134491540,5ptp4l0-21swapper/221:22:502
134491540,4ptp4l0-21swapper/022:00:240
134491540,3ptp4l0-21swapper/123:25:221
134491540,3ptp4l0-21swapper/022:40:160
420499533,49cyclictest2413-21kworker/1:100:12:291
134491530,4ptp4l0-21swapper/300:27:083
134491530,10ptp4l1810-21apt-get19:05:120
134491520,5ptp4l0-21swapper/219:47:382
134491520,4ptp4l0-21swapper/222:50:082
134491510,4ptp4l0-21swapper/300:11:213
134491510,4ptp4l0-21swapper/222:33:402
134491510,4ptp4l0-21swapper/221:14:082
134491510,4ptp4l0-21swapper/021:13:110
134491510,3ptp4l0-21swapper/219:57:312
134491510,3ptp4l0-21swapper/219:57:312
134491510,3ptp4l0-21swapper/121:08:091
134491510,3ptp4l0-21swapper/022:38:480
134491510,3ptp4l0-21swapper/021:58:000
420499501,47cyclictest28473-21kworker/1:220:55:491
134491500,4ptp4l0-21swapper/200:16:112
134491500,4ptp4l0-21swapper/200:16:112
134491500,3ptp4l0-21swapper/123:16:271
134491500,3ptp4l0-21swapper/120:48:471
134491500,3ptp4l0-21swapper/020:49:280
134491490,9ptp4l2028-21df19:05:131
134491490,4ptp4l0-21swapper/223:31:352
134491490,4ptp4l0-21swapper/220:57:512
134491490,4ptp4l0-21swapper/219:40:322
134491490,4ptp4l0-21swapper/219:23:482
134491490,3ptp4l0-21swapper/120:16:001
4205994834,12cyclictest33-21ksoftirqd/220:45:002
4205994834,12cyclictest33-21ksoftirqd/220:45:002
134491480,4ptp4l0-21swapper/221:32:062
134491480,4ptp4l0-21swapper/219:54:422
134491480,3ptp4l0-21swapper/020:04:350
134491480,3ptp4l0-21swapper/019:12:260
134491480,17ptp4l25-21ksoftirqd/121:35:001
134491470,4ptp4l420399cyclictest20:34:520
134491470,4ptp4l0-21swapper/221:06:162
134491470,4ptp4l0-21swapper/000:02:160
134491470,3ptp4l0-21swapper/300:15:303
134491470,3ptp4l0-21swapper/300:15:303
134491470,3ptp4l0-21swapper/220:21:322
134491470,3ptp4l0-21swapper/121:10:391
134491460,9ptp4l0-21swapper/022:08:550
134491460,4ptp4l0-21swapper/222:44:402
134491460,12ptp4l0-21swapper/222:15:192
134491450,5ptp4l0-21swapper/023:15:270
134491450,4ptp4l420399cyclictest22:13:280
134491450,4ptp4l0-21swapper/321:35:133
134491450,4ptp4l0-21swapper/023:55:360
134491450,3ptp4l0-21swapper/120:42:421
134491450,3ptp4l0-21swapper/120:42:421
134491450,3ptp4l0-21swapper/119:15:491
134491440,6ptp4l0-21swapper/122:40:011
134491440,4ptp4l19369-21apt-get00:20:122
134491440,4ptp4l0-21swapper/120:54:471
134491440,4ptp4l0-21swapper/021:26:560
134491440,3ptp4l0-21swapper/123:36:421
134491440,3ptp4l0-21swapper/122:32:141
134491440,3ptp4l0-21swapper/121:19:171
134491440,3ptp4l0-21swapper/120:21:081
134491440,2ptp4l13973-21apt-get21:50:121
134491430,9ptp4l0-21swapper/223:58:492
134491430,9ptp4l0-21swapper/223:35:532
134491430,9ptp4l0-21swapper/223:02:002
134491430,9ptp4l0-21swapper/221:15:472
134491430,5ptp4l0-21swapper/223:20:132
134491430,3ptp4l23246-21apt-get21:00:111
134491430,3ptp4l0-21swapper/019:20:140
134491420,9ptp4l0-21swapper/222:02:412
134491420,9ptp4l0-21swapper/221:28:572
134491420,9ptp4l0-21swapper/220:49:422
134491420,6ptp4l26767-21ls23:25:220
134491420,5ptp4l0-21swapper/323:25:233
134491420,5ptp4l0-21swapper/322:55:273
134491420,5ptp4l0-21swapper/319:05:263
134491420,5ptp4l0-21swapper/300:00:273
134491420,5ptp4l0-21swapper/120:00:171
134491420,5ptp4l0-21swapper/023:30:160
134491420,4ptp4l19584-21memory20:50:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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