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2025-12-09 - 10:43
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 10 highest latencies:
System rack7slot8.osadl.org (updated Tue Dec 09, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2317823010,8sleep023179-21readlink19:05:350
23829991758,144cyclictest1424-21nginx22:18:340
238299917429,123cyclictest1424-21nginx23:28:520
238299917134,117cyclictest4368-21ntpq20:00:390
23829991689,136cyclictest1424-21nginx21:57:320
238299916822,108cyclictest1336-21runrttasks20:05:450
23829991647,14cyclictest16192-21apt-get22:52:120
238299916146,103cyclictest8810-21runrttasks22:21:490
238299915929,112cyclictest9020-21wget20:20:150
238299915910,17cyclictest30352-21ntp_states23:40:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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