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2026-04-08 - 22:49
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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 Wed Apr 08, 2026 02:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
621523110,7sleep06217-21cmp19:05:070
7576991747,144cyclictest1408-21nginx19:15:480
75769916610,112cyclictest17129-21runrttasks21:55:140
75769916510,132cyclictest8380-21irqstats19:10:530
75769916337,84cyclictest22942-21sshd00:23:550
75769916146,106cyclictest13111-21runrttasks19:30:130
75769916030,110cyclictest1408-21nginx22:01:170
75769915926,112cyclictest1305-21snmpd23:59:420
75769915841,96cyclictest10150irq/55-4a10000022:17:080
75769915716,111cyclictest2643-21grep23:05:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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