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2026-07-20 - 14:33
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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 Mon Jul 20, 2026 00:49:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
418699364165,1cyclictest151rcu_preempt22:41:0513
418699364165,1cyclictest151rcu_preempt22:41:0413
418699363165,1cyclictest151rcu_preempt22:18:0313
418699363165,1cyclictest151rcu_preempt22:18:0313
418699363165,1cyclictest151rcu_preempt22:00:2513
418699363165,1cyclictest151rcu_preempt22:00:2513
330891297289,6phc2sys0-21swapper/219:09:2812
3273912940,286ptp4l0-21swapper/119:09:581
41869923060,97cyclictest0-21swapper/2000:05:3113
41869920331,102cyclictest0-21swapper/2023:02:5713
41869920331,102cyclictest0-21swapper/2023:02:5713
418699183166,1cyclictest151rcu_preempt21:30:0113
41869917120,108cyclictest0-21swapper/2020:55:1313
41869916910,138cyclictest0-21swapper/2000:29:1413
24742169162,6sleep220-21swapper/2219:05:3915
41869915962,73cyclictest0-21swapper/2021:05:2313
41869915960,94cyclictest0-21swapper/2021:18:2913
40429915833,83cyclictest0-21swapper/221:51:3012
40429915639,74cyclictest0-21swapper/221:30:2312
41869915355,59cyclictest0-21swapper/2023:45:2113
41869915227,101cyclictest0-21swapper/2022:05:4613
41869915227,101cyclictest0-21swapper/2022:05:4613
40429914724,80cyclictest0-21swapper/223:52:4912
41869914519,117cyclictest0-21swapper/2022:20:1013
41869914519,117cyclictest0-21swapper/2022:20:1013
4255991440,89cyclictest0-21swapper/2920:33:5422
41869914144,50cyclictest0-21swapper/2022:33:0913
41869914144,50cyclictest0-21swapper/2022:33:0913
41869914038,102cyclictest137-21ksoftirqd/2000:16:2413
42559913851,58cyclictest0-21swapper/2922:40:5122
42559913851,58cyclictest0-21swapper/2922:40:5122
41869913885,53cyclictest137-21ksoftirqd/2021:24:4113
4065991380,85cyclictest0-21swapper/522:17:4427
4065991380,85cyclictest0-21swapper/522:17:4427
42559913752,47cyclictest0-21swapper/2921:45:1622
42559913741,61cyclictest0-21swapper/2923:00:3822
42559913741,61cyclictest0-21swapper/2923:00:3822
40429913748,58cyclictest0-21swapper/222:03:3112
40429913748,58cyclictest0-21swapper/222:03:3112
40429913745,62cyclictest0-21swapper/221:43:1312
40429913720,116cyclictest151rcu_preempt23:17:4912
40429913720,116cyclictest151rcu_preempt23:17:4912
42559913652,56cyclictest0-21swapper/2921:56:4522
42559913652,56cyclictest0-21swapper/2921:56:4422
42559913620,75cyclictest0-21swapper/2921:44:3122
40429913650,54cyclictest0-21swapper/221:20:1312
40429913647,67cyclictest0-21swapper/223:57:0612
42559913553,62cyclictest0-21swapper/2900:32:0122
42559913550,59cyclictest0-21swapper/2923:23:3722
40429913550,56cyclictest0-21swapper/219:20:1612
42559913442,61cyclictest0-21swapper/2900:09:3522
41869913435,90cyclictest0-21swapper/2000:37:0313
40429913425,63cyclictest0-21swapper/222:22:1412
40429913425,63cyclictest0-21swapper/222:22:1412
40429913416,70cyclictest0-21swapper/222:41:2812
40429913416,70cyclictest0-21swapper/222:41:2712
42559913352,52cyclictest0-21swapper/2921:20:2922
42559913346,54cyclictest0-21swapper/2921:30:1722
42559913340,64cyclictest0-21swapper/2922:02:2222
42559913340,64cyclictest0-21swapper/2922:02:2222
4202991330,82cyclictest0-21swapper/2200:39:2315
41869913331,14cyclictest0-21swapper/2021:34:1313
40869913311,120cyclictest0-21swapper/721:30:0529
40429913345,59cyclictest0-21swapper/222:12:0312
40429913345,59cyclictest0-21swapper/222:12:0312
42559913247,52cyclictest0-21swapper/2919:17:1422
42559913243,62cyclictest0-21swapper/2900:17:0322
40869913211,120cyclictest21116-21latency_hist22:10:0129
40869913211,120cyclictest21116-21latency_hist22:10:0129
40869913211,104cyclictest0-21swapper/723:46:2329
40429913241,62cyclictest0-21swapper/221:37:5212
40429913241,60cyclictest0-21swapper/219:39:3012
40429913229,67cyclictest0-21swapper/222:06:4412
40429913229,67cyclictest0-21swapper/222:06:4412
40429913229,64cyclictest0-21swapper/223:00:1112
40429913229,64cyclictest0-21swapper/223:00:1112
42559913144,58cyclictest0-21swapper/2919:34:2022
42559913132,67cyclictest0-21swapper/2919:50:5422
42559913126,65cyclictest0-21swapper/2921:20:0122
42559913124,63cyclictest0-21swapper/2921:25:4822
40869913111,98cyclictest0-21swapper/723:40:2129
40869913111,81cyclictest0-21swapper/721:35:1529
40429913129,67cyclictest0-21swapper/223:29:3412
42559913048,67cyclictest0-21swapper/2922:23:1322
42559913048,67cyclictest0-21swapper/2922:23:1322
42559913039,59cyclictest0-21swapper/2923:32:2822
42559913028,68cyclictest0-21swapper/2921:14:1622
42559913028,68cyclictest0-21swapper/2921:14:1622
40429913031,72cyclictest0-21swapper/219:10:2312
40429913029,68cyclictest0-21swapper/219:55:1612
40429913028,69cyclictest0-21swapper/221:28:4712
40429913027,69cyclictest0-21swapper/221:13:4912
40429913027,69cyclictest0-21swapper/221:13:4912
4042991300,80cyclictest0-21swapper/223:47:2912
42559912949,65cyclictest0-21swapper/2921:07:5122
42559912936,69cyclictest0-21swapper/2923:50:2022
40429912930,74cyclictest0-21swapper/200:12:0512
40429912928,66cyclictest0-21swapper/223:12:5912
40429912928,66cyclictest0-21swapper/223:12:5912
42559912855,56cyclictest0-21swapper/2922:25:2122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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