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2026-08-18 - 06:55
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack4slot2.osadl.org (updated Tue Aug 18, 2026 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502840,0irq/46-4a10000012-21ksoftirqd/019:05:310
141509912835,0cyclictest19141-21runrttasks19:20:520
141509912739,0cyclictest10379-21/usr/sbin/munin22:05:220
141509912442,0cyclictest0-21swapper19:51:500
141509912441,0cyclictest18886-21/usr/sbin/munin20:55:220
141509912439,0cyclictest32261-21/usr/sbin/munin20:00:060
141509912335,0cyclictest5034-21fw_conntrack20:15:060
141509912332,0cyclictest23270-21/usr/sbin/munin19:34:360
141509912330,0cyclictest8474-21chrt23:35:090
141509912233,0cyclictest12626-21runrttasks20:36:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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