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2026-08-23 - 02:23
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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 Sun Aug 23, 2026 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010000,0irq/46-4a10000017520-1kworker/u3:019:05:240
194779912832,0cyclictest24679-21grep19:20:370
194779912747,0cyclictest12-21ksoftirqd/019:39:520
194779912643,0cyclictest20489-21fschecks_count22:19:560
194779912329,0cyclictest14773-1kworker/u3:120:35:220
194779912230,0cyclictest25771-21chrt19:24:570
194779912044,0cyclictest17162-21/usr/sbin/munin22:09:560
194779912037,0cyclictest0-21swapper21:22:540
194779912036,0cyclictest22277-21fw_conntrack00:00:020
194779912034,0cyclictest4639-21/usr/sbin/munin21:34:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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