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2026-03-27 - 08:14
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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 Fri Mar 27, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502030,0irq/45-4a10000032218-21/usr/sbin/munin19:01:260
7450950,0irq/46-4a10000024873-21cpu21:56:280
225512950,0sleep022141-1kworker/u3:021:41:200
7450930,0irq/46-4a10000032224-21cpu22:26:320
7450930,0irq/46-4a10000021259-21fschecks_time21:36:410
7450930,0irq/46-4a10000017371-21runrttasks23:17:010
307302930,0sleep029924-1kworker/u3:123:56:430
7450920,0irq/46-4a1000009356-21chrt22:53:250
7450920,0irq/46-4a1000009349-21fw_conntrack21:01:440
7450920,0irq/46-4a10000030987-21idleruntime-cro20:31:160
7450920,0irq/46-4a10000025075-21seq20:12:110
7450920,0irq/46-4a10000014373-21fschecks_count21:16:410
7450920,0irq/46-4a10000013724-21fw_packets23:06:480
7450920,0irq/46-4a10000012753-21fw_conntrack21:11:450
7450910,0irq/46-4a1000006021-21irqstats19:16:520
7450910,0irq/46-4a1000004210-21perl20:46:430
7450910,0irq/46-4a1000003490-21users19:11:320
7450910,0irq/46-4a10000031174-21rt-features22:22:100
7450910,0irq/46-4a10000028833-1kworker/u3:020:59:270
7450910,0irq/46-4a10000024174-21chrt21:52:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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