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2026-03-29 - 12:28
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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 Sun Mar 29, 2026 00:49:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3273912860,278ptp4l0-21swapper/119:07:511
310379922123,1cyclictest151rcu_preempt22:30:214
31040991727,117cyclictest0-21swapper/1319:45:145
3055421590,1sleep220-21swapper/2200:15:1215
310699915746,84cyclictest137-21ksoftirqd/2021:31:4113
309949915434,78cyclictest0-21swapper/300:22:3823
31086991480,95cyclictest10683-21tr20:35:1217
31086991480,95cyclictest10683-21tr20:35:1217
31086991450,85cyclictest0-21swapper/2423:30:2517
31069991450,85cyclictest0-21swapper/2022:05:5113
311059914316,94cyclictest0-21swapper/2822:21:0421
310919914340,87cyclictest0-21swapper/2500:35:1918
31040991436,91cyclictest0-21swapper/1323:15:135
31040991430,84cyclictest0-21swapper/1300:21:125
31032991420,82cyclictest0-21swapper/1100:00:193
311059914064,76cyclictest0-21swapper/2822:51:3221
311059914024,70cyclictest0-21swapper/2800:01:4521
31091991400,85cyclictest0-21swapper/2500:30:2118
310949913950,59cyclictest0-21swapper/2623:33:5019
296352139132,6sleep100-21swapper/1019:07:122
311129913823,93cyclictest0-21swapper/3019:10:2824
31094991380,80cyclictest0-21swapper/2622:46:1719
31094991380,79cyclictest0-21swapper/2600:20:2019
311059913720,94cyclictest0-21swapper/2820:05:1621
311059913720,94cyclictest0-21swapper/2820:05:1621
310919913732,16cyclictest0-21swapper/2523:25:4918
310869913747,59cyclictest0-21swapper/2422:04:5417
310869913744,62cyclictest0-21swapper/2420:23:2217
310869913744,62cyclictest0-21swapper/2420:23:2117
31086991370,80cyclictest0-21swapper/2423:45:2217
311159913655,58cyclictest0-21swapper/3121:02:4125
311159913655,58cyclictest0-21swapper/3121:02:4125
31112991360,76cyclictest0-21swapper/3019:15:1624
310949913629,66cyclictest0-21swapper/2623:04:4319
310949913629,65cyclictest0-21swapper/2621:12:4519
310949913629,65cyclictest0-21swapper/2621:12:4519
310949913629,65cyclictest0-21swapper/2620:25:1219
310949913629,65cyclictest0-21swapper/2620:25:1219
310919913632,103cyclictest0-21swapper/2523:53:0418
31086991360,85cyclictest0-21swapper/2422:39:3817
278772136127,7sleep240-21swapper/2419:05:1817
31105991350,83cyclictest0-21swapper/2800:25:0021
310949913530,64cyclictest0-21swapper/2623:51:2919
310919913532,102cyclictest0-21swapper/2522:55:2118
310919913531,76cyclictest0-21swapper/2500:05:2218
310869913557,64cyclictest0-21swapper/2421:02:2217
310869913557,64cyclictest0-21swapper/2421:02:2217
310869913529,74cyclictest0-21swapper/2421:20:2317
31086991350,83cyclictest0-21swapper/2422:55:1317
309949913532,61cyclictest0-21swapper/323:44:4123
310949913431,67cyclictest0-21swapper/2621:20:1419
31094991341,79cyclictest0-21swapper/2623:40:1619
31094991340,77cyclictest0-21swapper/2622:21:4219
310869913451,56cyclictest0-21swapper/2400:00:2517
310869913437,66cyclictest0-21swapper/2422:50:2017
310869913429,70cyclictest0-21swapper/2400:29:1217
310869913425,65cyclictest0-21swapper/2422:40:1017
310699913423,43cyclictest0-21swapper/2021:22:0513
310069913442,59cyclictest0-21swapper/622:04:1628
310069913422,69cyclictest0-21swapper/600:30:1028
311059913326,73cyclictest0-21swapper/2823:00:0121
310949913332,69cyclictest0-21swapper/2621:05:0219
310949913332,69cyclictest0-21swapper/2621:05:0219
310949913330,69cyclictest0-21swapper/2620:55:3919
310949913330,69cyclictest0-21swapper/2620:55:3919
310949913330,66cyclictest0-21swapper/2621:30:2319
310949913330,65cyclictest0-21swapper/2621:16:5219
310949913329,60cyclictest0-21swapper/2619:20:3219
310949913327,66cyclictest0-21swapper/2621:05:0119
310949913327,66cyclictest0-21swapper/2621:05:0119
310869913346,54cyclictest0-21swapper/2400:30:4917
310869913339,65cyclictest0-21swapper/2423:59:4517
310869913332,67cyclictest0-21swapper/2421:25:2217
310869913332,67cyclictest0-21swapper/2421:25:2217
310869913330,74cyclictest0-21swapper/2423:43:1417
310869913330,67cyclictest0-21swapper/2422:32:0917
310869913329,68cyclictest0-21swapper/2422:05:1517
310869913328,68cyclictest0-21swapper/2420:45:2317
310869913328,68cyclictest0-21swapper/2420:45:2317
310869913327,65cyclictest0-21swapper/2419:55:0117
310329913329,69cyclictest0-21swapper/1122:00:213
310069913329,69cyclictest0-21swapper/621:45:0128
31002991330,81cyclictest0-21swapper/523:25:4027
311059913228,67cyclictest0-21swapper/2823:40:3821
310949913234,68cyclictest0-21swapper/2621:48:0219
310949913232,61cyclictest0-21swapper/2622:00:1919
310949913230,65cyclictest0-21swapper/2620:20:2319
310949913230,65cyclictest0-21swapper/2620:20:2319
310949913230,64cyclictest0-21swapper/2622:11:0019
310949913228,64cyclictest0-21swapper/2622:05:0719
31094991320,79cyclictest0-21swapper/2623:17:4919
31094991320,78cyclictest0-21swapper/2621:28:4619
31094991320,78cyclictest0-21swapper/2621:28:4619
310869913245,61cyclictest0-21swapper/2423:01:3017
310869913232,75cyclictest0-21swapper/2420:50:2117
310869913232,75cyclictest0-21swapper/2420:50:2117
310869913231,75cyclictest0-21swapper/2421:55:0117
310869913229,70cyclictest0-21swapper/2422:16:3917
310869913228,69cyclictest0-21swapper/2421:10:2617
310869913228,69cyclictest0-21swapper/2421:10:2517
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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