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2026-07-31 - 07:29
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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 Fri Jul 31, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502510,0irq/46-4a10000015525-1kworker/u3:219:08:060
100292820,0chrt6924-1kworker/u3:223:33:510
15666998156,0cyclictest0-21swapper21:44:460
15666997952,0cyclictest0-21swapper20:06:240
15666997750,0cyclictest0-21swapper19:22:120
15666997652,0cyclictest0-21swapper23:53:250
15666997449,0cyclictest0-21swapper19:17:470
7450730,0irq/46-4a10000022881-21sshd22:36:580
15666997348,0cyclictest0-21swapper21:17:420
7450720,0irq/46-4a100000876-21sendmail-msp20:00:300
7450720,0irq/46-4a10000014261-21kworker/u2:119:08:240
15666997258,0cyclictest26652-21/usr/sbin/munin00:23:260
15666997244,0cyclictest0-21swapper20:26:170
7450710,0irq/46-4a10000026511-21sendmail-msp19:39:390
7450710,0irq/46-4a1000002581-21sendmail-msp21:39:370
7450710,0irq/46-4a10000013737-21find22:09:050
15666997154,0cyclictest28120-21runrttasks22:52:590
15666997152,0cyclictest12-21ksoftirqd/021:59:060
15666997147,0cyclictest0-21swapper20:13:020
15666997145,0cyclictest0-21swapper20:21:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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