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2026-05-13 - 20:31
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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 May 13, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32542465161,0sleep09947-21kworker/0:306:59:450
27525210010,0sleep027556-21aten_r4power_en11:19:350
7450970,0irq/46-4a10000026236-21fw_packets08:04:590
7450960,0irq/46-4a1000008541-21cron07:14:240
7450960,0irq/46-4a100000643-21cat09:59:580
7450950,0irq/46-4a1000009599-21/usr/sbin/munin07:15:200
7450950,0irq/46-4a1000004210-21/usr/sbin/munin08:35:100
7450950,0irq/46-4a10000030046-21mailstats08:15:190
7450950,0irq/46-4a10000029737-21interrupts11:25:020
7450950,0irq/46-4a10000025604-21runrttasks09:39:020
7450950,0irq/46-4a10000022326-21grep07:54:300
7450950,0irq/46-4a10000014823-21ls12:15:230
7450950,0irq/46-4a10000014329-21if_eth009:04:590
7450940,0irq/46-4a1000008070-21vmstat08:45:260
7450940,0irq/46-4a10000025647-21sh08:04:240
7450940,0irq/46-4a10000020953-21diskstats07:49:480
7450940,0irq/46-4a10000019411-21seq12:29:560
7450940,0irq/46-4a10000017834-21meminfo07:40:030
7450940,0irq/46-4a10000016155-21runrttasks12:20:040
7450940,0irq/46-4a10000014446-21runrttasks10:40:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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