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2026-05-24 - 13:19
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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 Sun May 24, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74504640,0irq/46-4a10000012-21ksoftirqd/019:02:130
109529913554,0cyclictest7350irq/45-4a10000021:14:210
7350850,0irq/45-4a10000018367-21munin-run19:24:000
1276428511,0sleep012776-21munin-node19:09:050
7350830,0irq/45-4a10000030770-21df_inode21:34:210
7350830,0irq/45-4a10000029058-21diskstats19:54:230
7350820,0irq/45-4a10000032235-21aten_r4power_po20:04:110
7350820,0irq/45-4a10000027486-21fw_forwarded_lo19:49:330
7350820,0irq/45-4a1000002111-21ntp_states21:44:490
10952998258,0cyclictest0-21swapper20:39:110
7350810,0irq/45-4a10000022761-21grep22:44:540
7350810,0irq/45-4a10000018562-21cut00:09:120
7350810,0irq/45-4a10000015049-21sshd22:24:040
10952998056,0cyclictest0-21swapper00:24:120
10952998054,0cyclictest0-21swapper23:29:090
7450790,0irq/46-4a10000029853-1kworker/u3:223:09:400
7450780,0irq/46-4a10000010229-1kworker/u3:223:49:240
7450770,0irq/46-4a10000022131-1kworker/u3:219:39:260
7450770,0irq/46-4a10000021355-1kworker/u3:200:21:520
7450770,0irq/46-4a10000014569-1kworker/u3:120:49:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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