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2025-12-27 - 07:34
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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 50 highest latencies:
System rack0slot0.osadl.org (updated Sat Dec 27, 2025 00:45:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
235282810,0sleep70-21swapper/700:29:107
231192780,1sleep523116-21sshd23:15:045
149332780,1sleep081ktimersoftd/023:45:280
269622750,0sleep20-21swapper/222:09:142
264382740,0sleep40-21swapper/423:15:184
71262730,0sleep60-21swapper/623:27:146
56732730,0sleep50-21swapper/522:27:445
46342730,0sleep60-21swapper/622:55:256
67102720,1sleep40-21swapper/422:27:514
257302720,0sleep20-21swapper/221:55:112
286382700,0sleep00-21swapper/023:43:340
123752700,0sleep60-21swapper/600:03:056
117192700,1sleep6681ktimersoftd/623:59:206
221892690,0sleep50-21swapper/500:25:155
17112690,0sleep40-21swapper/421:42:074
118242690,0sleep30-21swapper/322:45:443
195012680,0sleep70-21swapper/723:45:597
18302680,0sleep70-21swapper/700:15:487
163852670,0sleep70-21swapper/723:31:407
163852670,0sleep70-21swapper/723:31:397
3036626049,7sleep70-21swapper/719:08:447
3025625848,6sleep60-21swapper/619:07:236
166592580,0sleep20-21swapper/223:24:542
125422570,4sleep23068299cyclictest23:52:182
31182530,0sleep70-21swapper/722:55:187
3031425141,6sleep10-21swapper/119:08:061
3010225141,6sleep00-21swapper/019:05:250
3027124737,6sleep30-21swapper/319:07:363
3042824535,6sleep40-21swapper/419:09:384
48732440,0sleep20-21swapper/221:21:362
3027024130,7sleep20-21swapper/219:07:352
2842624130,7sleep50-21swapper/519:05:065
30689993413,19cyclictest0-21swapper/300:18:283
3068999340,31cyclictest0-21swapper/319:20:173
120332310,1sleep61038-21sshd21:50:106
3068999300,27cyclictest0-21swapper/321:41:273
3068299305,20cyclictest0-21swapper/223:55:142
3068999273,22cyclictest0-21swapper/321:05:403
3068999273,22cyclictest0-21swapper/319:54:083
3068999273,20cyclictest0-21swapper/300:00:563
3070699260,25cyclictest0-21swapper/619:50:136
3068999265,15cyclictest0-21swapper/320:25:153
3068999262,22cyclictest0-21swapper/322:38:333
3068999262,22cyclictest0-21swapper/321:37:353
3068999262,22cyclictest0-21swapper/320:43:243
3068999262,22cyclictest0-21swapper/320:43:243
3068999262,22cyclictest0-21swapper/319:37:443
3068999262,19cyclictest0-21swapper/320:33:573
3068999260,23cyclictest0-21swapper/321:12:153
3068999260,22cyclictest0-21swapper/319:10:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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