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2026-06-23 - 01:52
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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 Tue Jun 23, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502280,0irq/45-4a10000027940-21kworker/0:219:08:560
7350920,0irq/45-4a10000011607-21fw_forwarded_lo23:00:250
7450890,0irq/46-4a10000030017-21wget22:19:580
7350890,0irq/45-4a1000006015-1kworker/u3:022:51:540
7350880,0irq/45-4a10000028809-21memory23:50:270
7350880,0irq/45-4a10000021863-21/usr/sbin/munin23:30:200
7350870,0irq/45-4a10000030322-21timerwakeupswit19:10:420
29229998761,0cyclictest0-21swapper20:29:550
7350860,0irq/45-4a10000028355-21seq20:40:000
7450830,0irq/46-4a100000438-21snmpd20:26:490
7350830,0irq/45-4a1000006300-21modprobe21:10:060
7350830,0irq/45-4a10000032384-21/usr/sbin/munin00:00:420
7350830,0irq/45-4a10000031665-21aten_r4power_en20:49:550
311762830,0sleep025577-1kworker/u3:219:14:540
7450820,0irq/46-4a10000029827-21chrt22:19:470
7450820,0irq/46-4a1000002817-21df19:25:010
7450820,0irq/46-4a1000002399-21runrttasks20:59:260
7450820,0irq/46-4a10000014440-21sendmail-msp19:59:480
7350820,0irq/45-4a1000009323-21sendmail-msp21:20:230
7350820,0irq/45-4a10000026608-21aten_r4power_vo23:44:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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