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2026-09-19 - 07:36
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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 Sep 19, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501930,0irq/46-4a10000024813-21/usr/sbin/munin19:05:210
257079912843,0cyclictest21513-21/usr/sbin/munin23:39:580
257079912840,0cyclictest9448-21/usr/sbin/munin21:29:520
257079912832,0cyclictest442-21snmpd22:59:590
257079912434,0cyclictest1507-21chrt21:05:270
257079912433,0cyclictest30365-21irqstats19:20:170
257079912333,0cyclictest26415-21/usr/sbin/munin19:10:200
257079912333,0cyclictest16083-21munin-run23:24:400
257079912331,0cyclictest8222-21memory19:50:200
257079912230,0cyclictest28055-21sendmail-msp00:00:020
257079912212,0cyclictest1703-21sensors_temp00:15:340
257079912211,0cyclictest8256-21memory21:25:210
257079912135,0cyclictest30535-21ntp_states20:55:280
257079912132,0cyclictest13069-21diskstats23:15:010
257079912131,0cyclictest29471-21seq19:17:560
257079912131,0cyclictest29261-21runrttasks20:51:050
257079912131,0cyclictest17911-21aten_r4power_cu23:29:500
257079912131,0cyclictest14508-21wget20:09:520
257079912131,0cyclictest11649-21cat21:35:210
257079912129,0cyclictest3018-21idleruntime00:20:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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