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2026-06-13 - 11:50
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackcslot8.osadl.org (updated Sat Jun 13, 2026 00:50:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
993599323124,1cyclictest137-21ksoftirqd/2021:57:5313
83822246239,6sleep00-21swapper/019:06:010
3273912040,196ptp4l0-21swapper/119:05:571
330891199191,6phc2sys0-21swapper/219:05:1212
9935991803,11cyclictest151rcu_preempt23:08:3013
98319914441,36cyclictest0-21swapper/121:38:191
98319914441,36cyclictest0-21swapper/121:38:181
9904991390,86cyclictest0-21swapper/1223:00:224
98319913757,62cyclictest0-21swapper/122:10:391
98319913723,67cyclictest0-21swapper/100:02:071
98319913723,67cyclictest0-21swapper/100:02:071
98319913656,64cyclictest0-21swapper/100:25:021
98319913648,59cyclictest0-21swapper/120:55:331
98319913648,59cyclictest0-21swapper/120:55:321
98319913642,64cyclictest0-21swapper/122:45:241
98319913629,64cyclictest0-21swapper/119:20:111
98319913551,63cyclictest0-21swapper/122:26:091
98319913550,64cyclictest0-21swapper/121:50:531
98319913548,60cyclictest0-21swapper/119:35:401
98319913529,70cyclictest0-21swapper/121:30:081
98319913529,70cyclictest0-21swapper/121:30:081
98319913528,68cyclictest0-21swapper/123:28:421
98319913528,68cyclictest0-21swapper/123:28:411
9862991340,81cyclictest0-21swapper/521:11:5627
9862991340,81cyclictest0-21swapper/521:11:5527
98319913452,60cyclictest0-21swapper/123:01:581
98319913447,61cyclictest0-21swapper/120:25:111
98319913447,61cyclictest0-21swapper/120:25:101
98319913447,57cyclictest0-21swapper/123:32:551
98319913447,57cyclictest0-21swapper/123:32:541
98319913446,61cyclictest0-21swapper/121:47:241
98319913440,63cyclictest0-21swapper/100:25:011
98319913432,70cyclictest0-21swapper/121:58:211
98319913430,68cyclictest0-21swapper/121:24:101
98319913430,68cyclictest0-21swapper/121:24:091
98319913429,71cyclictest0-21swapper/100:06:221
98319913429,71cyclictest0-21swapper/100:06:211
98319913429,69cyclictest0-21swapper/123:07:011
98319913427,71cyclictest0-21swapper/122:32:191
98319913426,69cyclictest0-21swapper/122:01:511
98319913425,67cyclictest0-21swapper/123:21:301
98319913347,59cyclictest0-21swapper/119:33:331
98319913346,58cyclictest0-21swapper/123:39:561
98319913346,58cyclictest0-21swapper/123:39:551
98319913330,69cyclictest0-21swapper/122:36:181
98319913329,76cyclictest0-21swapper/121:27:561
98319913329,70cyclictest0-21swapper/123:15:521
98319913251,62cyclictest0-21swapper/123:54:531
98319913251,62cyclictest0-21swapper/123:54:521
98319913240,63cyclictest0-21swapper/100:33:531
98319913229,70cyclictest0-21swapper/100:18:561
98319913227,71cyclictest0-21swapper/122:43:151
98319913227,69cyclictest0-21swapper/122:53:571
98319913132,66cyclictest0-21swapper/119:56:321
98319913129,71cyclictest0-21swapper/120:36:351
98319913129,71cyclictest0-21swapper/120:36:351
98319913129,68cyclictest0-21swapper/120:20:211
98319913128,68cyclictest0-21swapper/121:43:391
98319913128,67cyclictest0-21swapper/100:10:561
9972991303,93cyclictest0-21swapper/2621:50:1319
98279913025,33cyclictest0-21swapper/021:20:110
98279913025,33cyclictest0-21swapper/021:20:110
9972991293,82cyclictest0-21swapper/2622:18:3419
9972991293,74cyclictest0-21swapper/2623:00:0119
98319912956,62cyclictest0-21swapper/100:36:341
98319912944,65cyclictest0-21swapper/119:42:381
98319912931,71cyclictest0-21swapper/122:09:031
98319912931,70cyclictest0-21swapper/121:14:321
98319912931,70cyclictest0-21swapper/121:14:321
98319912930,76cyclictest0-21swapper/119:52:461
98319912930,66cyclictest0-21swapper/120:40:201
98319912930,66cyclictest0-21swapper/120:40:201
98319912927,67cyclictest0-21swapper/122:59:001
98319912925,64cyclictest0-21swapper/121:02:461
98319912925,64cyclictest0-21swapper/121:02:461
9972991283,115cyclictest0-21swapper/2623:10:1019
84112128120,7sleep240-21swapper/2419:06:2517
100049912823,24cyclictest0-21swapper/3122:45:5325
98319912727,65cyclictest0-21swapper/121:05:271
98319912727,65cyclictest0-21swapper/121:05:271
98319912727,65cyclictest0-21swapper/119:27:251
98319912631,74cyclictest0-21swapper/119:18:031
98319912631,71cyclictest0-21swapper/120:45:091
98319912631,71cyclictest0-21swapper/120:45:081
98319912628,68cyclictest0-21swapper/119:45:171
98319912627,62cyclictest0-21swapper/123:13:431
9972991250,69cyclictest0-21swapper/2622:33:3219
98869912518,20cyclictest0-21swapper/900:39:5431
98319912537,68cyclictest0-21swapper/123:40:591
98319912537,68cyclictest0-21swapper/123:40:591
98319912527,68cyclictest0-21swapper/120:15:461
98319912525,66cyclictest0-21swapper/122:17:551
100049912552,63cyclictest0-21swapper/3123:32:5625
100049912552,63cyclictest0-21swapper/3123:32:5625
100049912525,62cyclictest0-21swapper/3121:32:0825
100049912525,62cyclictest0-21swapper/3121:32:0825
98869912418,72cyclictest0-21swapper/923:57:4131
98869912418,72cyclictest0-21swapper/923:57:4131
98319912425,66cyclictest0-21swapper/119:10:331
100049912426,64cyclictest0-21swapper/3123:09:2525
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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