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2026-03-20 - 11:18
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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 Fri Mar 20, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502000,0irq/46-4a10000017515-21runrttasks19:03:060
179759912945,0cyclictest3479-21/usr/sbin/munin21:31:460
179759912633,0cyclictest25913-21seq22:36:580
179759912631,0cyclictest3478-21cpuspeed19:56:480
179759912431,0cyclictest19388-21ntp_states20:42:190
179759912427,0cyclictest23820-21/usr/sbin/munin00:07:320
179759912331,0cyclictest28528-21chrt19:34:250
179759912331,0cyclictest21930-21runrttasks20:51:260
179759912234,0cyclictest22861-21/usr/sbin/munin20:52:400
179759912232,0cyclictest25970-21fw_forwarded_lo19:27:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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