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2025-11-14 - 15:40
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rackbslot2.osadl.org (updated Fri Nov 14, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29699332232183,40sleep30-21swapper/307:06:383
29700732227179,39sleep20-21swapper/207:08:222
29700462227198,19sleep10-21swapper/107:08:001
29700602226198,18sleep00-21swapper/007:08:120
319355321130,1sleep00-21swapper/011:25:140
2970592996662,3cyclictest3014640-21kworker/u8:4+events_unbound08:00:142
2970595995137,12cyclictest3209042-21ThreadPoolForeg11:45:073
297058899511,49cyclictest0-21swapper/111:00:161
2970592994946,2cyclictest2911412-21kworker/2:0+pm07:30:032
2970592994936,12cyclictest3018187-21kworker/2:1+pm09:30:042
2970588994946,2cyclictest3095309-21kworker/u8:2+flush-179:010:00:271
2970592994844,3cyclictest2970164-21kworker/u8:2+flush-179:007:20:062
2970581994743,2cyclictest3105123-13chrome09:45:010
2970595994633,1cyclictest2906362-1kworker/3:0H+kblockd10:56:013
2970592994537,4cyclictest3156799-21munin-update10:45:012
32307392440,1chrt3230495-21/usr/share/muni12:10:030
2970595994433,1cyclictest2906362-1kworker/3:0H+kblockd08:36:113
2970592994441,2cyclictest3132633-21apt-get10:15:122
2970592994441,2cyclictest3132633-21apt-get10:15:122
2970592994441,2cyclictest3030005-21kworker/u8:0+flush-179:008:40:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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