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2026-09-08 - 21:06
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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 Sep 08, 2026 12:48:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912200,214ptp4l0-21swapper/107:09:471
25211991810,160cyclictest0-21swapper/111:45:001
253719916632,44cyclictest0-21swapper/2109:10:2114
253719916632,44cyclictest0-21swapper/2109:10:2114
3273911640,50ptp4l0-21swapper/110:20:021
253249915730,61cyclictest0-21swapper/1512:08:467
253629915548,81cyclictest137-21ksoftirqd/2010:47:2413
252119915439,93cyclictest0-21swapper/111:04:231
254029914722,26cyclictest0-21swapper/2512:22:0418
253249914629,90cyclictest0-21swapper/1507:45:177
25211991460,31cyclictest0-21swapper/110:16:181
25211991440,81cyclictest0-21swapper/112:20:171
254029914368,67cyclictest167-21ksoftirqd/2509:49:1318
25324991420,84cyclictest0-21swapper/1508:25:237
25301991410,87cyclictest0-21swapper/1208:40:154
253019914032,41cyclictest0-21swapper/1210:06:394
252119914046,60cyclictest0-21swapper/112:27:141
25211991400,85cyclictest0-21swapper/111:50:211
25211991400,83cyclictest0-21swapper/108:45:091
25211991400,83cyclictest0-21swapper/108:45:091
254029913933,56cyclictest0-21swapper/2507:40:0718
252369913930,99cyclictest151rcu_preempt12:37:5526
252119913930,72cyclictest0-21swapper/109:24:591
252119913930,72cyclictest0-21swapper/109:24:591
25211991390,81cyclictest0-21swapper/107:45:231
252119913828,73cyclictest0-21swapper/109:28:441
252119913828,73cyclictest0-21swapper/109:28:431
25211991380,82cyclictest0-21swapper/112:13:201
25211991380,82cyclictest0-21swapper/110:05:051
25211991380,79cyclictest0-21swapper/112:32:031
25330991370,85cyclictest0-21swapper/1610:11:328
253249913753,59cyclictest0-21swapper/1509:33:157
253249913753,59cyclictest0-21swapper/1509:33:147
252119913744,60cyclictest0-21swapper/111:55:101
25211991370,85cyclictest0-21swapper/110:30:431
25211991370,80cyclictest0-21swapper/110:50:301
25402991361,81cyclictest0-21swapper/2510:43:4118
252119913641,60cyclictest0-21swapper/108:24:241
252119913629,72cyclictest0-21swapper/109:52:471
252119913629,72cyclictest0-21swapper/109:52:471
25211991360,85cyclictest0-21swapper/109:42:051
25211991360,85cyclictest0-21swapper/109:42:051
25211991360,81cyclictest0-21swapper/107:35:591
253249913526,66cyclictest0-21swapper/1510:19:127
253019913518,72cyclictest0-21swapper/1209:31:394
253019913518,72cyclictest0-21swapper/1209:31:384
252119913528,71cyclictest0-21swapper/109:14:501
252119913528,71cyclictest0-21swapper/109:14:501
252119913511,76cyclictest0-21swapper/110:35:481
254349913425,75cyclictest0-21swapper/2911:51:0822
253249913443,62cyclictest0-21swapper/1510:41:087
25301991340,85cyclictest0-21swapper/1207:30:204
252259913423,21cyclictest0-21swapper/309:36:1423
252259913423,21cyclictest0-21swapper/309:36:1423
252119913454,60cyclictest0-21swapper/110:12:331
25211991340,78cyclictest0-21swapper/112:05:191
253249913342,59cyclictest0-21swapper/1512:20:007
25266991330,82cyclictest0-21swapper/812:05:1430
252259913351,55cyclictest0-21swapper/310:29:4123
252119913357,63cyclictest0-21swapper/110:55:511
252119913330,69cyclictest0-21swapper/111:24:421
252119913329,61cyclictest0-21swapper/112:36:191
252119913328,72cyclictest0-21swapper/107:30:381
25211991330,83cyclictest0-21swapper/109:46:221
25211991330,79cyclictest0-21swapper/110:28:041
25211991330,75cyclictest0-21swapper/110:47:491
25345991320,78cyclictest0-21swapper/1810:33:1010
253249913260,70cyclictest0-21swapper/1511:20:417
253249913230,71cyclictest0-21swapper/1509:52:287
253249913230,71cyclictest0-21swapper/1509:52:287
253249913230,67cyclictest0-21swapper/1511:41:317
253249913225,64cyclictest0-21swapper/1509:10:477
253249913225,64cyclictest0-21swapper/1509:10:477
252259913226,70cyclictest0-21swapper/308:18:0123
252259913225,63cyclictest0-21swapper/311:49:3623
25211991320,78cyclictest0-21swapper/112:02:391
254349913125,64cyclictest0-21swapper/2912:36:4822
254349913125,105cyclictest0-21swapper/2909:35:0522
254349913125,105cyclictest0-21swapper/2909:35:0422
253249913145,56cyclictest0-21swapper/1509:26:187
253249913145,56cyclictest0-21swapper/1509:26:177
253249913131,78cyclictest0-21swapper/1512:14:387
253249913129,66cyclictest0-21swapper/1510:45:237
253249913128,68cyclictest0-21swapper/1510:28:187
253019913169,61cyclictest0-21swapper/1211:50:204
252369913120,108cyclictest151rcu_preempt10:18:5026
252369913114,114cyclictest151rcu_preempt12:12:0626
252119913156,68cyclictest0-21swapper/107:53:591
252119913129,71cyclictest0-21swapper/108:05:141
252119913129,65cyclictest0-21swapper/111:30:041
252119913128,62cyclictest0-21swapper/110:41:431
25211991310,82cyclictest0-21swapper/109:30:531
25211991310,82cyclictest0-21swapper/109:30:521
25211991310,80cyclictest0-21swapper/110:03:451
25211991310,80cyclictest0-21swapper/110:03:441
25211991310,79cyclictest0-21swapper/107:18:051
254349913025,88cyclictest0-21swapper/2910:39:1222
25434991300,85cyclictest0-21swapper/2907:54:3722
253249913030,73cyclictest0-21swapper/1510:34:427
253249913029,70cyclictest0-21swapper/1512:38:437
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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