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2026-08-15 - 16:30
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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 50 highest latencies:
System rack5slot2.osadl.org (updated Sat Aug 15, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
62472208192,11sleep10-21swapper/107:09:521
60202196178,13sleep00-21swapper/007:06:590
59932184168,12sleep30-21swapper/307:06:373
5992211194,13sleep20-21swapper/207:06:362
323442470,0sleep10-21swapper/111:51:441
190572440,0sleep30-21swapper/310:40:033
173102440,0sleep10-21swapper/110:05:501
134922440,0sleep10-21swapper/109:31:201
11122340,0sleep20-21swapper/210:14:482
309262100,0sleep30-21swapper/310:13:103
64179990,5cyclictest30478-21munin-run11:35:010
64349961,4cyclictest29578-21apt-get07:55:123
64299960,1cyclictest8021-21ssh11:55:352
64349955,0cyclictest28290-21kworker/3:111:53:353
64349955,0cyclictest1843-21diskmemload09:22:533
64349953,2cyclictest40-21ksoftirqd/308:50:013
64349951,2cyclictest0-21swapper/311:10:123
64349950,5cyclictest0-21swapper/311:32:053
64349950,5cyclictest0-21swapper/309:51:413
64349950,5cyclictest0-21swapper/307:28:313
64299950,5cyclictest0-21swapper/211:04:312
64299950,5cyclictest0-21swapper/209:40:132
64299950,5cyclictest0-21swapper/209:32:422
64259951,2cyclictest0-21swapper/111:30:121
64259951,2cyclictest0-21swapper/109:15:111
64259951,2cyclictest0-21swapper/108:30:121
64259951,2cyclictest0-21swapper/108:20:121
64259950,5cyclictest0-21swapper/112:04:241
64179955,0cyclictest0-21swapper/010:46:090
64179950,5cyclictest0-21swapper/012:29:280
64179950,5cyclictest0-21swapper/009:43:000
64179950,4cyclictest0-21swapper/010:40:120
64349944,0cyclictest28290-21kworker/3:112:15:573
64349944,0cyclictest28290-21kworker/3:111:08:483
64349944,0cyclictest28290-21kworker/3:107:47:153
64349944,0cyclictest0-21swapper/311:22:463
64349944,0cyclictest0-21swapper/310:32:083
64349944,0cyclictest0-21swapper/309:36:333
64349943,1cyclictest3505-21grep08:05:193
64349942,1cyclictest26896-21ssh09:55:063
64349942,1cyclictest19518-21cat09:35:013
64349942,1cyclictest11026-21ssh12:30:173
64349941,2cyclictest31351-21unixbench_singl09:00:193
64349941,2cyclictest0-21swapper/311:55:113
64349941,2cyclictest0-21swapper/309:15:123
64349940,4cyclictest9560-21apt-get08:20:133
64349940,4cyclictest5471-21ssh09:11:023
64349940,4cyclictest0-21swapper/312:20:213
64349940,4cyclictest0-21swapper/311:45:123
64349940,4cyclictest0-21swapper/310:45:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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