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2026-06-13 - 20:22
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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 Jun 13, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502490,0irq/46-4a10000012-21ksoftirqd/007:05:210
7450950,0irq/46-4a1000006342-21switchtime10:10:410
89042930,0sleep027225-1kworker/u3:210:19:570
7450930,0irq/46-4a1000007821-1kworker/u3:007:12:230
7450930,0irq/46-4a1000003099-21users10:00:510
7450930,0irq/46-4a10000030890-21cron08:14:450
7450930,0irq/46-4a10000024146-21latency_hist12:39:490
7450930,0irq/46-4a10000020811-21/usr/sbin/munin07:45:000
8143999257,0cyclictest0-21swapper10:25:210
7450920,0irq/46-4a1000007886-21processes10:15:350
7450920,0irq/46-4a1000007173-21aten_r4power_en08:39:580
7450920,0irq/46-4a1000005943-21/usr/sbin/munin08:35:200
7450920,0irq/46-4a10000025779-21cron11:09:440
7450920,0irq/46-4a10000014957-21grep07:25:460
7450920,0irq/46-4a10000012791-21runrttasks10:30:220
7450920,0irq/46-4a10000010855-21diskstats08:50:050
7450920,0irq/46-4a10000010444-21sendmail-msp12:00:030
7450910,0irq/46-4a10000032638-21munin-run11:29:450
7450910,0irq/46-4a10000030422-21users09:45:450
7450910,0irq/46-4a10000027514-21munin-run09:39:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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