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2026-04-26 - 01:45
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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 Apr 26, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010660,0irq/46-4a10000027628-1kworker/u3:119:03:010
93042950,0sleep07574-1kworker/u3:022:48:170
58112930,0sleep031657-1kworker/u3:222:37:290
158572920,0sleep014297-1kworker/u3:023:06:050
7450910,0irq/46-4a10000015608-21zcat21:30:580
18472910,0sleep01658-1kworker/u3:119:15:540
7450900,0irq/46-4a10000016078-1kworker/u3:121:35:430
212542900,0sleep016620-1kworker/u3:120:13:130
7450890,0irq/46-4a1000006920-21/usr/sbin/munin21:05:540
7450890,0irq/46-4a1000003298-21runrttasks00:05:360
7450890,0irq/46-4a10000027066-1kworker/u3:020:38:030
7450890,0irq/46-4a10000020783-21sendmail_mailtr21:46:010
7450890,0irq/46-4a10000014297-1kworker/u3:023:03:010
7450890,0irq/46-4a10000012644-1kworker/u3:220:41:240
7450880,0irq/46-4a1000004361-1kworker/u3:000:12:250
7450880,0irq/46-4a10000024499-21seq21:56:390
7450880,0irq/46-4a10000021919-21df_abs20:15:250
7450880,0irq/46-4a10000012975-21munin-run21:25:060
7450880,0irq/46-4a10000012048-21/usr/sbin/munin00:30:540
7450880,0irq/46-4a10000010271-21/usr/sbin/munin22:50:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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