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2026-06-07 - 16:25
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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 Sun Jun 07, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502460,0irq/45-4a10000020507-21kworker/0:107:07:070
227319910484,0cyclictest18633-21diskstats10:05:260
227319910481,0cyclictest4232-21irqstats12:30:520
227319910468,0cyclictest11685-21df_abs08:10:190
227319910278,0cyclictest6673-21diskstats11:05:260
227319910270,0cyclictest0-21swapper08:55:510
227319910175,0cyclictest24707-1kworker/u3:208:51:450
227319910174,0cyclictest27148-1kworker/u3:212:07:420
227319910171,0cyclictest2848-21latency_hist07:45:050
227319910081,0cyclictest28858-21df_inode10:35:210
227319910076,0cyclictest19720-21runrttasks08:33:480
227319910067,0cyclictest0-21swapper10:26:060
22731999981,0cyclictest24780-21munin-node07:15:150
22731999981,0cyclictest22788-21diskstats11:50:250
22731999979,0cyclictest2359-21fschecks_count12:25:300
22731999979,0cyclictest22258-21/usr/sbin/munin08:40:400
22731999978,0cyclictest24171-21ntp_states08:45:570
22731999977,0cyclictest7431-21users07:56:100
22731999974,0cyclictest18453-1kworker/u3:011:38:500
22731999966,0cyclictest0-21swapper11:45:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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