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2026-09-24 - 04:27
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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 10 highest latencies:
System rack4slot2.osadl.org (updated Thu Sep 24, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501990,0irq/46-4a10000024985-21runrttasks19:06:310
25388998554,0cyclictest0-21swapper00:20:080
7450840,0irq/46-4a100000367-21sendmail-msp22:39:300
3195428411,0sleep031978-21proc_pri19:25:180
7350830,0irq/45-4a100000793-21diskstats22:39:530
7350820,0irq/45-4a10000012887-21fw_conntrack21:40:030
7350810,0irq/45-4a1000009248-21df_abs23:04:470
7350810,0irq/45-4a1000005921-21df_inode21:19:560
7350810,0irq/45-4a1000004316-21perl19:40:010
7350810,0irq/45-4a10000019264-21/usr/sbin/munin23:35:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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