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2025-09-10 - 08:16
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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 Wed Sep 10, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2778192994845,2cyclictest2788661-21fwupd19:19:133
277819299291,24cyclictest683-21runrttasks22:05:023
2778188992722,3cyclictest401ktimers/221:25:172
277818899271,3cyclictest3072253-21ssh23:20:222
277818899271,24cyclictest0-21swapper/222:45:002
277818899271,22cyclictest2946848-21apt-get21:45:152
277818899262,21cyclictest2901865-21diskmemload22:00:132
277818899261,23cyclictest3471731-21systemd-journal22:40:012
277818899261,21cyclictest2901865-21diskmemload22:20:152
277818899260,24cyclictest3005770-21cut22:30:162
277818899260,23cyclictest3081959-21cut23:30:182
277819299251,22cyclictest3100697-21sed23:45:183
277819299251,22cyclictest3035715-21sed22:55:003
277819299251,21cyclictest2908770-21diskstats21:15:153
277819299251,21cyclictest0-21swapper/323:25:023
277819299251,20cyclictest2886790-21apt-get20:55:163
277819299250,22cyclictest3061862-21ssh23:15:123
277819299250,22cyclictest2830334-21taskset20:00:143
277818899251,3cyclictest2799691-21apt-get19:30:122
277818899251,21cyclictest2815029-21apt-get19:45:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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