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2026-06-04 - 01:57
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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 Jun 04, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502400,0irq/46-4a10000020214-1kworker/u3:018:59:350
7350860,0irq/45-4a10000029804-21diskstats21:38:530
2695028515,0sleep026994-21tune2fs19:23:560
7350840,0irq/45-4a1000004942-21/usr/sbin/munin21:59:330
7350840,0irq/45-4a1000002477-21diskstats23:28:580
7350840,0irq/45-4a10000022541-21sh21:18:330
7350840,0irq/45-4a10000015836-21/usr/sbin/munin22:33:430
7350830,0irq/45-4a10000013493-21users23:59:310
7350830,0irq/45-4a10000011320-21memory22:19:150
7350820,0irq/45-4a10000024253-21latency_hist00:33:330
7350820,0irq/45-4a10000022727-21aten_r4power_en22:53:450
7450800,0irq/46-4a100000460-21snmpd22:40:030
7450800,0irq/46-4a100000460-21snmpd20:28:580
7450800,0irq/46-4a1000003231-21chrt19:59:160
7450800,0irq/46-4a10000017636-21cron20:58:330
21023998056,0cyclictest0-21swapper21:48:420
7450790,0irq/46-4a1000006192-21meminfo23:39:130
7450790,0irq/46-4a10000029383-21idleruntime-cro21:38:340
7350790,0irq/45-4a1000006682-21grep20:13:560
7350790,0irq/45-4a100000460-21snmpd19:53:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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