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2026-05-15 - 13:20
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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 Fri May 15, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
73502270,0irq/45-4a10000026847-21kworker/0:218:59:420
212892950,0sleep019914-1kworker/u3:121:49:340
54182940,0sleep03091-1kworker/u3:121:02:210
64302910,0chrt3827-1kworker/u3:000:15:010
141612910,0sleep013129-1kworker/u3:119:54:090
7450900,0irq/46-4a10000021890-21ntp_states23:25:140
7450890,0irq/46-4a10000012846-21df21:24:380
7450880,0irq/46-4a1000005158-21/usr/sbin/munin19:25:200
7450880,0irq/46-4a10000028505-21if_eth023:44:560
28482880,0chrt32637-1kworker/u3:220:54:530
7450870,0irq/46-4a1000003827-1kworker/u3:000:08:410
7450870,0irq/46-4a10000028505-21/usr/sbin/munin20:34:560
7450870,0irq/46-4a10000021299-21grep20:14:330
7450870,0irq/46-4a10000020518-21users20:10:210
7450870,0irq/46-4a10000018084-21diskstats23:14:440
7450860,0irq/46-4a1000009953-21pluginstate22:50:110
7450860,0irq/46-4a1000009320-21/usr/sbin/munin21:14:340
7450860,0irq/46-4a1000008362-21fgrep00:20:140
7450860,0irq/46-4a1000004117-21aten_r4power_cu00:09:310
7450860,0irq/46-4a10000032657-1kworker/u3:000:01:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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