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2025-11-15 - 08:30
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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 Sat Nov 15, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502390,0irq/46-4a10000012903-1kworker/u3:119:05:130
7350870,0irq/45-4a10000028929-21/usr/sbin/munin00:35:180
7450860,0irq/46-4a100000443-21snmpd21:18:360
7350860,0irq/45-4a100000543-21copy21:39:060
183552860,0sleep017488-1kworker/u3:020:54:280
13374998655,0cyclictest0-21swapper23:19:380
7450850,0irq/46-4a10000019123-21munin-run19:23:350
7450850,0irq/46-4a10000014920-21meminfo20:45:090
7450840,0irq/46-4a10000025092-21runrttasks00:24:140
7450840,0irq/46-4a10000023812-21chrt00:20:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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