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2025-12-01 - 11:06
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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 rackeslot4.osadl.org (updated Mon Dec 01, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2699719992924,3cyclictest2886040-21basename22:00:000
2699731992724,2cyclictest491ktimers/321:14:143
269973199264,19cyclictest0-21swapper/319:50:193
2699731992623,2cyclictest0-21swapper/322:48:123
269972999260,24cyclictest2959951-21ssh22:55:232
269971999262,21cyclictest2756179-21apt-get20:05:120
269971999261,23cyclictest3018793-21tune2fs23:45:150
269971999260,24cyclictest2807327-21cron20:55:010
2699731992520,3cyclictest2982601-21cat23:15:183
2699731992519,4cyclictest3471731-21systemd-journal23:40:223
2699729992523,1cyclictest2797164-21kworker/u8:0+xprtiod22:19:232
269972499251,21cyclictest3051581-21apt-get00:15:091
269972499251,21cyclictest3005998-21apt-get23:35:141
269972499251,20cyclictest2822852-21apt-get21:10:121
269971999254,2cyclictest245621450irq/127-enp0s29f1:rx-023:55:240
269971999252,21cyclictest2822518-21diskmemload00:02:450
2699719992521,2cyclictest2822852-21apt-get21:10:120
2699719992519,5cyclictest3008634-21kthreadcore23:35:190
269971999251,4cyclictest2896582-21ntpq22:05:210
269971999251,4cyclictest2867571-21irqcore21:45:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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