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2026-06-10 - 09:44
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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 Wed Jun 10, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502740,0irq/46-4a10000012-21ksoftirqd/019:07:100
139952950,0sleep011031-1kworker/u3:123:50:460
30232940,0sleep01092-1kworker/u3:021:45:070
136182940,0sleep013045-1kworker/u3:020:40:270
7350910,0irq/45-4a10000020841-21grep21:00:470
7450900,0irq/46-4a100000523-21sed23:10:510
193702900,0sleep015983-1kworker/u3:220:56:050
7450890,0irq/46-4a1000009637-21sendmail-msp23:39:560
7450890,0irq/46-4a10000031073-21sendmail_mailtr19:55:460
7450890,0irq/46-4a10000018622-21fschecks_count22:30:190
7450890,0irq/46-4a10000016510-21wc23:59:570
7450890,0irq/46-4a10000014562-1kworker/u3:022:18:490
201932895,0sleep020194-21df19:25:080
7450880,0irq/46-4a1000003214-21/usr/sbin/munin20:10:180
7450880,0irq/46-4a10000028900-21sshd19:50:210
7450880,0irq/46-4a10000028062-1kworker/u3:122:57:250
7450880,0irq/46-4a10000027524-21ntpq19:45:430
7450880,0irq/46-4a10000025715-21memory22:50:350
7450880,0irq/46-4a10000022304-21seq21:05:370
7450880,0irq/46-4a10000017762-1kworker/u3:122:35:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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