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2026-04-02 - 09:28
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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 Apr 02, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502530,0irq/46-4a10000030205-1kworker/u3:219:05:050
7450970,0irq/46-4a10000027364-21/usr/sbin/munin22:01:560
7450960,0irq/46-4a1000006213-21aten_r4power_vo00:11:150
7450950,0irq/46-4a1000009843-21entropy21:11:290
7450950,0irq/46-4a10000028341-21aten_r4power_en22:06:120
7450950,0irq/46-4a10000025980-21seq21:57:020
7450950,0irq/46-4a10000020278-21if_eth020:06:360
7450950,0irq/46-4a10000017234-21grep21:31:560
7450950,0irq/46-4a10000015295-21nfs4_client19:51:470
194892950,0sleep018586-1kworker/u3:120:04:500
7450940,0irq/46-4a100000995-21runrttasks20:46:110
7450940,0irq/46-4a1000009174-1kworker/u3:219:36:540
7450940,0irq/46-4a10000031110-21runrttasks20:37:010
7450940,0irq/46-4a10000029663-21sshd20:34:160
7450940,0irq/46-4a10000024917-21/usr/sbin/munin20:21:420
7450940,0irq/46-4a10000020373-21latency23:16:400
7450940,0irq/46-4a10000011759-21/usr/sbin/munin22:51:400
7450930,0irq/46-4a1000008420-21meminfo21:06:440
7450930,0irq/46-4a100000552-1kworker/u3:023:56:540
7450930,0irq/46-4a1000005097-21ntp_offset00:06:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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