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2026-05-23 - 07:27
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Sat May 23, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745012970,0irq/46-4a10000026919-1kworker/u3:219:00:360
305999913146,0cyclictest27465-21/usr/sbin/munin23:34:350
305999913043,0cyclictest32646-21munin-node19:09:150
305999912533,0cyclictest27863-21threads20:24:570
305999912532,0cyclictest10536-21memory00:19:440
305999912532,0cyclictest10505-21memory22:44:440
305999912412,0cyclictest28636-21/usr/sbin/munin22:04:110
305999912335,0cyclictest14934-21grep22:59:050
305999912331,0cyclictest21585-21runrttasks20:08:350
305999912241,0cyclictest20564-21fschecks_time23:14:290
305999912233,0cyclictest8207-21mailstats19:29:520
305999912233,0cyclictest7261-21/usr/sbin/munin20:59:550
305999912229,0cyclictest25831-21runrttasks20:19:430
305999912213,0cyclictest4283-21diskstats19:19:230
305999912211,0cyclictest8809-21memory22:39:450
305999912211,0cyclictest31411-21chrt19:04:510
305999912141,0cyclictest0-21swapper21:29:160
305999912140,0cyclictest12488-21sensors22:49:550
305999912133,0cyclictest6559-21sensors19:24:570
305999912131,0cyclictest24094-21irqstats23:24:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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