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2026-08-02 - 02:32
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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 Aug 02, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745011710,0irq/46-4a10000012-21ksoftirqd/019:04:160
75822920,0sleep07005-1kworker/u3:120:38:490
7450920,0irq/46-4a10000017366-21/usr/sbin/munin19:33:430
219982900,0sleep017234-1kworker/u3:000:30:400
7450890,0irq/46-4a1000008095-21/usr/sbin/munin22:14:100
7450890,0irq/46-4a100000438-21snmpd19:55:540
7450890,0irq/46-4a100000403-21/usr/sbin/munin23:28:240
7450890,0irq/46-4a1000003973-21diskstats23:38:340
7450890,0irq/46-4a10000020860-21wget22:53:220
7350890,0irq/45-4a1000008658-21modprobe23:53:090
7450880,0irq/46-4a10000024579-21tune2fs21:28:330
7450880,0irq/46-4a10000018413-21users21:09:100
7450880,0irq/46-4a1000001723-21sshd20:22:100
7350880,0irq/45-4a10000011039-21irqstats23:58:540
238352880,0sleep020133-1kworker/u3:100:36:450
129222880,0sleep012144-1kworker/u3:219:19:120
7450870,0irq/46-4a10000030420-21chrt20:09:240
7450870,0irq/46-4a10000026221-21diskstats19:58:360
7450870,0irq/46-4a10000026194-21fschecks_count23:08:350
7450870,0irq/46-4a1000002282-21seq23:33:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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