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2025-11-24 - 18:39
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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 Nov 24, 2025 12:49:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2482912720,264ptp4l0-21swapper/107:09:201
245229916823,21cyclictest0-21swapper/2909:21:1322
245229916823,21cyclictest0-21swapper/2909:21:1322
245229916317,128cyclictest10353-21taskset10:56:3722
245229915623,89cyclictest0-21swapper/2910:15:1322
245229915623,89cyclictest0-21swapper/2910:15:1222
245229915123,72cyclictest0-21swapper/2911:10:0222
243569914315,119cyclictest151rcu_preempt10:10:5326
243569914315,119cyclictest151rcu_preempt10:10:5326
24484991422,136cyclictest151rcu_preempt10:56:3617
245229914123,117cyclictest0-21swapper/2907:25:1722
245089913937,73cyclictest0-21swapper/2712:16:2920
245089913934,73cyclictest0-21swapper/2709:47:2320
24365991390,80cyclictest0-21swapper/612:01:1028
243569913851,56cyclictest0-21swapper/408:11:3326
24508991361,78cyclictest0-21swapper/2709:24:5720
24508991361,78cyclictest0-21swapper/2709:24:5620
244069913517,71cyclictest0-21swapper/1207:42:264
243419913521,110cyclictest151rcu_preempt12:00:011
24346991341,128cyclictest151rcu_preempt07:18:2512
245089913241,60cyclictest0-21swapper/2711:34:4720
245089913226,62cyclictest0-21swapper/2712:20:4520
245089913124,64cyclictest0-21swapper/2710:11:2520
245089913124,64cyclictest0-21swapper/2710:11:2520
243569913119,60cyclictest0-21swapper/408:53:1826
245229913024,65cyclictest0-21swapper/2909:19:3822
245229913024,65cyclictest0-21swapper/2909:19:3722
24522991300,79cyclictest0-21swapper/2910:09:3822
24522991300,79cyclictest0-21swapper/2910:09:3822
245089913049,53cyclictest0-21swapper/2711:42:4820
245089913028,67cyclictest0-21swapper/2711:27:0120
245229912923,71cyclictest0-21swapper/2909:36:5922
245229912923,71cyclictest0-21swapper/2909:36:5922
245089912926,65cyclictest0-21swapper/2712:10:0420
245229912854,58cyclictest12803-21taskset09:05:2722
245229912854,58cyclictest12803-21taskset09:05:2722
245089912843,64cyclictest0-21swapper/2711:45:2920
245089912835,64cyclictest0-21swapper/2712:09:0020
245089912829,67cyclictest0-21swapper/2712:25:0220
245089912827,72cyclictest0-21swapper/2707:50:2120
245089912824,64cyclictest0-21swapper/2709:17:2720
245089912824,64cyclictest0-21swapper/2709:17:2720
245089912741,57cyclictest0-21swapper/2710:41:5320
245089912737,56cyclictest0-21swapper/2707:25:1520
245089912728,58cyclictest0-21swapper/2710:02:2020
245089912728,58cyclictest0-21swapper/2710:02:2020
245229912623,73cyclictest1588-21taskset08:32:2022
245089912628,68cyclictest0-21swapper/2711:05:2420
245089912628,67cyclictest0-21swapper/2709:27:2520
245089912628,67cyclictest0-21swapper/2709:27:2520
245089912627,75cyclictest0-21swapper/2708:45:2320
245089912627,66cyclictest0-21swapper/2711:35:2020
245089912626,65cyclictest0-21swapper/2707:40:1220
245089912625,66cyclictest0-21swapper/2710:45:2320
245089912624,59cyclictest0-21swapper/2712:37:1920
244069912621,67cyclictest0-21swapper/1211:28:384
243659912634,60cyclictest0-21swapper/611:05:0328
243419912659,31cyclictest0-21swapper/109:23:461
243419912659,31cyclictest0-21swapper/109:23:451
245089912545,65cyclictest0-21swapper/2711:04:5220
244069912549,54cyclictest0-21swapper/1209:00:264
244069912543,57cyclictest0-21swapper/1209:12:594
244069912543,57cyclictest0-21swapper/1209:12:594
243469912544,32cyclictest151rcu_preempt11:51:2812
245089912427,64cyclictest0-21swapper/2709:30:1720
245089912427,64cyclictest0-21swapper/2709:30:1620
245089912426,65cyclictest0-21swapper/2712:00:5920
245089912426,65cyclictest0-21swapper/2711:51:2120
244409912427,59cyclictest0-21swapper/1609:33:508
244409912427,59cyclictest0-21swapper/1609:33:508
243569912460,43cyclictest0-21swapper/410:31:0926
243569912460,43cyclictest0-21swapper/410:31:0926
243569912440,58cyclictest0-21swapper/410:27:0626
243569912440,58cyclictest0-21swapper/410:27:0626
245229912320,71cyclictest0-21swapper/2907:20:2922
245089912332,80cyclictest0-21swapper/2711:11:1720
245089912332,78cyclictest0-21swapper/2709:52:1220
245089912332,78cyclictest0-21swapper/2709:52:1120
245089912327,63cyclictest0-21swapper/2710:27:5920
245089912327,63cyclictest0-21swapper/2710:27:5920
244069912355,44cyclictest88-21ksoftirqd/1209:05:164
244069912355,44cyclictest88-21ksoftirqd/1209:05:154
243569912346,53cyclictest0-21swapper/409:06:3626
243569912346,53cyclictest0-21swapper/409:06:3526
243569912343,54cyclictest0-21swapper/412:18:2026
243569912333,62cyclictest0-21swapper/411:04:5126
245089912233,78cyclictest0-21swapper/2710:58:2820
244409912230,55cyclictest0-21swapper/1611:26:558
244409912227,57cyclictest0-21swapper/1611:52:008
244409912224,56cyclictest0-21swapper/1609:52:218
244409912224,56cyclictest0-21swapper/1609:52:208
244069912236,62cyclictest0-21swapper/1210:57:064
244069912227,64cyclictest0-21swapper/1210:03:304
244069912227,64cyclictest0-21swapper/1210:03:294
244069912227,60cyclictest0-21swapper/1210:36:384
244069912224,62cyclictest0-21swapper/1211:33:524
243569912225,59cyclictest0-21swapper/410:51:3326
243569912223,61cyclictest0-21swapper/411:56:0726
243569912223,59cyclictest0-21swapper/410:21:3426
24346991220,79cyclictest0-21swapper/208:04:2212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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