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2025-11-29 - 12:30
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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 Sat Nov 29, 2025 00:49:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
302239929497,1cyclictest151rcu_preempt22:42:0527
2482912570,249ptp4l0-21swapper/119:06:151
302459922277,1cyclictest151rcu_preempt22:12:3330
329891182173,6phc2sys0-21swapper/219:05:2312
287972166158,6sleep200-21swapper/2019:06:4413
30203991490,87cyclictest0-21swapper/120:03:031
30203991490,87cyclictest0-21swapper/120:03:031
302929914820,91cyclictest0-21swapper/1622:30:018
302039914756,54cyclictest0-21swapper/123:31:431
30390991460,84cyclictest0-21swapper/3121:11:4025
302039914653,55cyclictest0-21swapper/100:18:451
302039914648,61cyclictest0-21swapper/100:35:511
302039914544,62cyclictest0-21swapper/121:27:131
302039914449,57cyclictest0-21swapper/122:16:221
302039914357,64cyclictest0-21swapper/123:42:241
302039914339,65cyclictest0-21swapper/123:56:501
302039914250,66cyclictest0-21swapper/119:21:061
302039914231,67cyclictest0-21swapper/123:36:001
302039914137,68cyclictest0-21swapper/120:42:511
302039914137,68cyclictest0-21swapper/120:42:511
302039914133,61cyclictest0-21swapper/100:25:101
302039914126,70cyclictest0-21swapper/120:30:011
302039914126,70cyclictest0-21swapper/120:30:011
302039914055,63cyclictest0-21swapper/121:30:561
302039914031,67cyclictest0-21swapper/121:57:081
302039914031,67cyclictest0-21swapper/100:30:221
30203991400,84cyclictest0-21swapper/120:55:551
30203991400,84cyclictest0-21swapper/120:55:551
302039913962,73cyclictest0-21swapper/119:44:201
302039913953,62cyclictest0-21swapper/121:41:081
302039913929,66cyclictest0-21swapper/121:36:181
302039913829,66cyclictest0-21swapper/123:00:591
302039913828,66cyclictest0-21swapper/122:44:421
302039913730,67cyclictest0-21swapper/100:10:451
302039913729,61cyclictest0-21swapper/122:45:281
302039913660,67cyclictest0-21swapper/120:25:171
302039913660,67cyclictest0-21swapper/120:25:161
302039913630,67cyclictest0-21swapper/123:20:201
302039913629,62cyclictest0-21swapper/122:20:071
302039913629,61cyclictest0-21swapper/122:55:231
302039913553,65cyclictest0-21swapper/119:30:271
302039913550,53cyclictest0-21swapper/121:52:201
302039913535,69cyclictest0-21swapper/121:13:191
302039913530,66cyclictest0-21swapper/100:08:511
30203991350,83cyclictest0-21swapper/122:27:351
302039913432,68cyclictest0-21swapper/119:14:101
302039913429,65cyclictest0-21swapper/119:58:131
302039913429,65cyclictest0-21swapper/119:58:131
302039913345,63cyclictest0-21swapper/119:46:451
302039913332,66cyclictest0-21swapper/121:23:591
303909913245,58cyclictest0-21swapper/3119:25:2025
302039913230,60cyclictest0-21swapper/121:00:141
302039913230,60cyclictest0-21swapper/121:00:131
302039913227,65cyclictest0-21swapper/123:25:181
303909913149,55cyclictest0-21swapper/3123:51:2825
30382991310,88cyclictest0-21swapper/3021:23:5624
302039913130,66cyclictest0-21swapper/123:46:421
302039913129,64cyclictest0-21swapper/123:15:421
302039913128,62cyclictest0-21swapper/122:36:231
302039913128,61cyclictest0-21swapper/120:10:161
302039913128,61cyclictest0-21swapper/120:10:151
302289913024,90cyclictest0-21swapper/623:29:3928
302039913029,63cyclictest0-21swapper/119:39:321
302039913022,68cyclictest0-21swapper/123:13:331
303909912957,64cyclictest0-21swapper/3121:48:0125
303909912928,65cyclictest0-21swapper/3100:00:0025
303089912946,56cyclictest0-21swapper/1922:50:4911
302039912928,60cyclictest0-21swapper/100:24:061
302039912927,63cyclictest0-21swapper/123:54:101
303909912858,65cyclictest0-21swapper/3122:13:3925
303909912843,61cyclictest0-21swapper/3121:30:2325
303909912828,67cyclictest0-21swapper/3123:10:1925
303909912826,63cyclictest0-21swapper/3121:55:1325
303909912728,67cyclictest0-21swapper/3123:07:2325
303909912727,58cyclictest0-21swapper/3120:35:2025
303909912727,58cyclictest0-21swapper/3120:35:2025
303089912745,57cyclictest0-21swapper/1922:42:1911
303089912742,55cyclictest0-21swapper/1919:47:3211
302039912730,63cyclictest0-21swapper/121:19:121
302039912729,66cyclictest0-21swapper/100:01:391
303909912627,69cyclictest0-21swapper/3119:48:5125
303089912627,68cyclictest0-21swapper/1923:50:4111
303089912625,64cyclictest0-21swapper/1922:18:4811
302039912630,62cyclictest0-21swapper/122:34:001
302039912629,61cyclictest0-21swapper/123:06:531
302039912625,61cyclictest0-21swapper/122:50:031
303909912531,72cyclictest0-21swapper/3120:30:2325
303909912531,72cyclictest0-21swapper/3120:30:2325
303909912529,72cyclictest0-21swapper/3121:18:3725
303909912528,74cyclictest0-21swapper/3119:44:5225
303909912527,61cyclictest0-21swapper/3122:23:1725
303909912526,68cyclictest0-21swapper/3119:15:1225
303909912525,65cyclictest0-21swapper/3100:00:1525
303089912544,56cyclictest0-21swapper/1921:29:3811
303089912526,61cyclictest0-21swapper/1921:45:5611
303089912523,60cyclictest0-21swapper/1922:48:1211
302929912536,88cyclictest0-21swapper/1623:15:138
303909912431,77cyclictest0-21swapper/3123:22:0425
303909912427,66cyclictest0-21swapper/3123:17:4725
303909912427,65cyclictest0-21swapper/3122:39:5125
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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