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2026-05-21 - 10:54
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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 May 21, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502380,0irq/46-4a10000024938-1kworker/u3:219:03:140
7450970,0irq/46-4a10000030315-21chrt22:29:280
7450960,0irq/46-4a10000028910-21runrttasks22:24:480
7450950,0irq/46-4a10000015280-21/usr/sbin/munin20:09:520
7450940,0irq/46-4a1000008220-21sshd19:49:370
7450940,0irq/46-4a10000030205-21wc19:19:210
7450940,0irq/46-4a10000021338-21munin-run20:29:080
7450940,0irq/46-4a10000016942-21seq23:24:480
7450930,0irq/46-4a1000009225-1kworker/u3:123:12:500
7450930,0irq/46-4a100000460-21snmpd22:09:410
7450930,0irq/46-4a10000024670-1kworker/u3:120:42:460
7450930,0irq/46-4a10000022170-21ntp_offset23:39:560
7450930,0irq/46-4a1000002209-21chrt22:41:240
7450930,0irq/46-4a10000021669-21/usr/sbin/munin22:04:240
7450920,0irq/46-4a1000003897-1kworker/u3:100:25:440
7450920,0irq/46-4a1000003658-21/usr/sbin/munin00:20:020
7450920,0irq/46-4a1000003352-21/usr/sbin/munin22:44:530
7450920,0irq/46-4a10000026272-21/usr/sbin/munin19:05:020
7450920,0irq/46-4a10000024938-1kworker/u3:221:31:140
7450920,0irq/46-4a10000024670-1kworker/u3:120:51:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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