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2026-07-24 - 07:44
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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 Fri Jul 24, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2180199923850,62cyclictest0-21swapper/022:32:430
2180299871796,59cyclictest0-21swapper/122:32:431
2180199844756,67cyclictest1189-21snmpd19:11:440
214992817797,13sleep10-21swapper/119:07:161
2180299795710,61cyclictest0-21swapper/119:11:441
214902552529,15sleep00-21swapper/019:07:110
2180199483392,81cyclictest0-21swapper/021:25:230
2180299393328,25cyclictest9648-21ssh21:25:231
21802999412,65cyclictest0-21swapper/119:29:591
228699920,10rtkit-daemon0-21swapper/023:00:170
21801998768,14cyclictest0-21swapper/022:04:590
228699780,4rtkit-daemon2285-21rtkit-daemon22:25:221
228699780,4rtkit-daemon2285-21rtkit-daemon20:54:100
21802997812,47cyclictest0-21swapper/120:30:591
228699760,3rtkit-daemon2285-21rtkit-daemon23:28:281
21802997615,42cyclictest0-21swapper/120:48:591
228699750,6rtkit-daemon2285-21rtkit-daemon00:25:241
228699750,6rtkit-daemon2285-21rtkit-daemon00:25:241
228699740,4rtkit-daemon2285-21rtkit-daemon21:58:211
228699740,4rtkit-daemon2285-21rtkit-daemon21:23:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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