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2026-07-14 - 20:08
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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 Tue Jul 14, 2026 12:49:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
84999925255,1cyclictest151rcu_preempt10:00:5430
84999925255,1cyclictest151rcu_preempt10:00:5330
85229919047,114cyclictest151rcu_preempt09:20:153
3273911820,174ptp4l0-21swapper/107:06:031
86239916427,76cyclictest0-21swapper/2509:17:0218
86239916427,76cyclictest0-21swapper/2509:17:0118
86179915856,37cyclictest151rcu_preempt09:10:2317
86179915239,50cyclictest151rcu_preempt08:46:3817
8532991470,85cyclictest0-21swapper/1210:42:244
84719914221,120cyclictest0-21swapper/412:34:1526
8589991400,83cyclictest0-21swapper/2111:39:0714
85329914019,117cyclictest0-21swapper/1212:32:464
8532991400,88cyclictest0-21swapper/1211:55:224
8514991400,86cyclictest0-21swapper/1010:37:292
8514991400,86cyclictest0-21swapper/1010:37:282
85529913922,116cyclictest0-21swapper/1408:35:116
85229913949,56cyclictest0-21swapper/1112:17:593
8452991380,86cyclictest0-21swapper/008:56:020
8623991370,89cyclictest0-21swapper/2510:13:4018
8623991370,89cyclictest0-21swapper/2510:13:4018
85329913720,67cyclictest0-21swapper/1209:24:534
85329913718,91cyclictest0-21swapper/1211:25:254
85229913629,64cyclictest0-21swapper/1108:21:123
85229913530,68cyclictest0-21swapper/1109:10:223
85229913530,65cyclictest0-21swapper/1112:20:243
8522991350,80cyclictest0-21swapper/1110:17:443
8522991350,80cyclictest0-21swapper/1110:17:433
85329913419,40cyclictest0-21swapper/1209:25:254
8623991330,82cyclictest0-21swapper/2507:28:2318
85229913332,62cyclictest0-21swapper/1107:27:143
85229913330,65cyclictest0-21swapper/1107:18:413
85229913330,60cyclictest0-21swapper/1110:33:143
85229913330,60cyclictest0-21swapper/1110:33:133
85229913231,67cyclictest0-21swapper/1110:25:133
85229913231,67cyclictest0-21swapper/1110:25:123
85229913229,64cyclictest0-21swapper/1109:17:203
85229913229,64cyclictest0-21swapper/1109:17:193
85229913220,69cyclictest0-21swapper/1107:53:253
8452991320,87cyclictest0-21swapper/008:45:240
85229913131,68cyclictest0-21swapper/1108:02:123
85229913128,60cyclictest0-21swapper/1109:35:153
85229913128,60cyclictest0-21swapper/1109:35:143
85229913128,58cyclictest0-21swapper/1109:51:323
85229913128,58cyclictest0-21swapper/1109:51:313
85329913066,38cyclictest0-21swapper/1211:09:584
85329913055,45cyclictest0-21swapper/1210:27:514
85329913055,45cyclictest0-21swapper/1210:27:504
85329913029,69cyclictest0-21swapper/1209:17:554
85329913029,69cyclictest0-21swapper/1209:17:554
85229913031,68cyclictest0-21swapper/1111:40:023
85229913029,61cyclictest0-21swapper/1110:03:503
85229913029,61cyclictest0-21swapper/1110:03:503
85229913028,62cyclictest0-21swapper/1109:43:303
85229913028,62cyclictest0-21swapper/1109:43:303
85229913028,59cyclictest0-21swapper/1108:30:503
85899912942,67cyclictest0-21swapper/2109:41:3314
85899912942,67cyclictest0-21swapper/2109:41:3214
85329912936,59cyclictest0-21swapper/1209:39:034
85329912936,59cyclictest0-21swapper/1209:39:034
85329912925,24cyclictest0-21swapper/1209:05:244
85329912925,24cyclictest0-21swapper/1209:05:234
85229912928,63cyclictest0-21swapper/1110:10:153
85229912928,63cyclictest0-21swapper/1110:10:143
85229912916,67cyclictest0-21swapper/1112:06:133
8522991290,76cyclictest0-21swapper/1108:11:033
84719912921,106cyclictest0-21swapper/410:15:1326
84719912921,106cyclictest0-21swapper/410:15:1326
8452991290,80cyclictest0-21swapper/011:02:230
330891129119,7phc2sys0-21swapper/207:05:2012
85329912848,60cyclictest0-21swapper/1210:10:224
85329912848,60cyclictest0-21swapper/1210:10:224
85329912848,54cyclictest0-21swapper/1210:35:124
85329912848,54cyclictest0-21swapper/1210:35:124
85329912844,53cyclictest0-21swapper/1212:20:294
85329912825,25cyclictest0-21swapper/1212:11:234
85149912843,54cyclictest0-21swapper/1010:43:532
84719912821,72cyclictest0-21swapper/409:31:5626
84719912821,72cyclictest0-21swapper/409:31:5526
84719912821,68cyclictest0-21swapper/411:29:1626
84719912821,22cyclictest0-21swapper/410:20:1826
84719912821,22cyclictest0-21swapper/410:20:1826
86179912723,69cyclictest151rcu_preempt11:48:0717
86179912713,79cyclictest151rcu_preempt09:27:2917
85329912748,51cyclictest0-21swapper/1209:13:284
85329912729,69cyclictest0-21swapper/1211:24:374
85329912727,71cyclictest0-21swapper/1211:15:004
85329912725,69cyclictest0-21swapper/1210:03:064
85329912725,69cyclictest0-21swapper/1210:03:054
8532991271,75cyclictest0-21swapper/1210:30:214
8532991271,75cyclictest0-21swapper/1210:30:204
85229912728,61cyclictest0-21swapper/1110:52:593
85229912728,61cyclictest0-21swapper/1110:52:593
85229912728,58cyclictest0-21swapper/1111:19:113
85229912727,59cyclictest0-21swapper/1111:45:363
8522991272,73cyclictest0-21swapper/1111:07:253
84719912721,82cyclictest0-21swapper/409:48:3326
84719912721,82cyclictest0-21swapper/409:48:3326
84719912721,80cyclictest0-21swapper/411:42:2026
86179912630,74cyclictest151rcu_preempt09:22:0917
85329912690,35cyclictest8447-21cyclictest08:40:224
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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