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2026-03-12 - 07:30
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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 Thu Mar 12, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502800,0irq/46-4a1000005765-1kworker/u3:019:06:020
7622998356,0cyclictest0-21swapper21:02:000
7622998157,0cyclictest0-21swapper21:52:010
7622997754,0cyclictest0-21swapper21:12:000
7622997552,0cyclictest0-21swapper21:47:010
7622997551,0cyclictest0-21swapper20:36:580
7622997250,0cyclictest0-21swapper22:57:020
7622997148,0cyclictest14875-21runrttasks00:10:350
7450710,0irq/46-4a10000010651-21/usr/sbin/munin20:47:340
7622997054,0cyclictest20619-21/usr/sbin/munin00:27:130
7622997042,0cyclictest0-21swapper19:57:450
7622997038,0cyclictest17693-21/usr/sbin/munin21:07:410
7622996951,0cyclictest4803-21latency_hist22:06:510
7622996950,0cyclictest9716-21runrttasks20:45:180
7622996949,0cyclictest7350irq/45-4a10000023:42:050
7622996945,0cyclictest0-21swapper22:41:590
7622996844,0cyclictest24863-21runrttasks23:03:200
7622996844,0cyclictest0-21swapper20:51:580
7622996833,0cyclictest8763-21sed19:07:470
7622996753,0cyclictest24517-21/usr/sbin/munin19:52:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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