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2026-06-01 - 01:52
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Mon Jun 01, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65849918101712,92cyclictest0-21swapper/019:22:360
658599930849,49cyclictest0-21swapper/119:10:021
658499810732,52cyclictest0-21swapper/019:10:020
658599464415,35cyclictest0-21swapper/119:22:361
65859912391,26cyclictest0-21swapper/120:24:591
6468211491,15sleep00-21swapper/019:09:140
2286991120,4rtkit-daemon2285-21rtkit-daemon22:18:361
2286991080,4rtkit-daemon2285-21rtkit-daemon23:58:581
2286991070,4rtkit-daemon2285-21rtkit-daemon00:11:281
2286991060,4rtkit-daemon2285-21rtkit-daemon21:55:351
2286991020,4rtkit-daemon2285-21rtkit-daemon22:57:271
2286991020,3rtkit-daemon2285-21rtkit-daemon21:49:501
2286991010,4rtkit-daemon2285-21rtkit-daemon22:54:211
65849910076,20cyclictest0-21swapper/020:59:590
228699990,4rtkit-daemon2285-21rtkit-daemon23:52:531
228699990,4rtkit-daemon2285-21rtkit-daemon22:36:421
228699990,4rtkit-daemon2285-21rtkit-daemon00:05:081
6584999581,9cyclictest0-21swapper/021:18:590
6585999116,59cyclictest0-21swapper/120:01:591
228699910,4rtkit-daemon2285-21rtkit-daemon20:17:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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