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2026-04-18 - 17:02
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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 Sat Apr 18, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501890,0irq/46-4a10000020047-21/usr/sbin/munin07:01:120
7450930,0irq/46-4a10000024754-21sshd08:50:240
7450930,0irq/46-4a10000010673-1kworker/u3:109:44:570
7350930,0irq/45-4a1000003241-1kworker/u3:109:25:320
7450920,0irq/46-4a1000006490-21fschecks_time09:30:520
7450920,0irq/46-4a10000031601-21idleruntime-cro07:35:250
7450920,0irq/46-4a10000016673-21/usr/sbin/munin11:35:480
20772999260,0cyclictest0-21swapper08:51:180
20772999260,0cyclictest0-21swapper08:01:130
20772999260,0cyclictest0-21swapper07:50:560
20772999259,0cyclictest0-21swapper10:26:200
20772999257,0cyclictest0-21swapper09:55:410
7450910,0irq/46-4a10000027051-21fw_conntrack10:30:550
7450910,0irq/46-4a10000023550-21fschecks_count11:55:490
7350910,0irq/45-4a100000476-1kworker/u3:207:39:430
7350910,0irq/45-4a10000016032-1kworker/u3:008:27:360
7350910,0irq/45-4a10000013987-21chrt11:26:210
20772999159,0cyclictest0-21swapper12:31:040
20772999158,0cyclictest0-21swapper11:21:030
20772999157,0cyclictest0-21swapper10:10:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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