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2026-03-24 - 19:01
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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 Tue Mar 24, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502790,0irq/46-4a10000027238-1kworker/u3:007:03:400
7350940,0irq/45-4a10000028196-21/usr/sbin/munin10:11:360
7350940,0irq/45-4a10000017223-1kworker/u3:209:39:120
7450930,0irq/46-4a1000007536-21/usr/sbin/munin09:12:000
29051999353,0cyclictest0-21swapper09:27:060
7450920,0irq/46-4a10000023868-21/usr/sbin/munin08:22:190
29051999270,0cyclictest0-21swapper09:16:540
29051999257,0cyclictest0-21swapper11:41:590
7450910,0irq/46-4a1000007298-1kworker/u3:110:45:440
7450910,0irq/46-4a10000014449-21cut09:31:330
29051999170,0cyclictest0-21swapper07:47:070
29051999159,0cyclictest0-21swapper08:11:490
29051999158,0cyclictest0-21swapper07:57:060
7450900,0irq/46-4a10000028949-21switchtime11:47:150
7450900,0irq/46-4a10000016537-21fw_forwarded_lo11:11:560
7450900,0irq/46-4a10000016459-21fschecks_count08:01:480
7350900,0irq/45-4a10000017710-1kworker/u3:111:17:360
29051999070,0cyclictest0-21swapper12:07:160
29051999057,0cyclictest0-21swapper08:46:480
29051999056,0cyclictest0-21swapper08:52:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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