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2025-11-19 - 12:02
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack3slot2.osadl.org (updated Wed Nov 19, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222795522480,3chrt2227951-21irqstats22:45:350
221911922460,3chrt2219027-21latency_hist22:20:100
216183522410,3chrt2161833-21diskstats19:10:180
219554822380,3chrt2195551-21missed_timers21:10:430
221636622330,3chrt2216353-21ntpq22:11:340
225054722280,4chrt2250541-21ntpq23:51:320
216625522210,3chrt2166256-21collect219:25:340
222758322190,2sleep02227584-21sh22:45:000
216161099216187,19cyclictest2253268-21kworker/u2:100:00:060
216161099204175,18cyclictest2249274-21kworker/u2:000:00:320
220650222010,2sleep02206503-21sh21:42:060
221057621950,2sleep02210578-21sort21:55:100
216161099195164,19cyclictest2215478-21kworker/u2:322:50:310
216161099188160,18cyclictest2232671-21kworker/u2:123:30:050
226396021870,2sleep02263961-21ntpq00:30:510
216161099186144,18cyclictest2170487-21kworker/u2:219:45:030
216161099185157,17cyclictest2232671-21kworker/u2:123:45:060
216161099184157,16cyclictest2218818-21kworker/u2:122:30:310
216161099182152,19cyclictest2215478-21kworker/u2:322:40:070
219883221810,3sleep02198831-21/usr/sbin/munin21:20:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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