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2026-03-28 - 20:51
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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 Sat Mar 28, 2026 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3670404992623,2cyclictest3756856-21munin-plugin-st08:34:593
367040499261,20cyclictest3986169-21apt-get12:20:133
367039499261,21cyclictest3700971-21apt-get07:40:111
367038699264,21cyclictest3889478-21date10:45:000
3670404992521,2cyclictest3965943-21apt-get12:00:103
367040499251,21cyclictest3747000-21apt-get08:25:093
367039899252,21cyclictest3930490-21apt-get11:25:122
3670398992520,3cyclictest3797999-21apt-get09:15:142
3670398992520,3cyclictest3731770-21apt-get08:10:142
3670398992520,2cyclictest3996277-21apt-get12:30:132
367039899251,21cyclictest3848631-21apt-get10:05:112
367039499252,22cyclictest3919176-21ntpq11:10:201
367039499251,23cyclictest3894246-21timerandwakeup10:45:241
367039499251,21cyclictest3976077-21apt-get12:10:121
367039499251,21cyclictest3808173-21apt-get09:25:101
367039499251,21cyclictest0-21swapper/112:05:121
367039499251,21cyclictest0-21swapper/112:05:111
367038699252,21cyclictest3960867-21apt-get11:55:110
3670386992518,5cyclictest3782389-21taskset09:00:120
367040499242,2cyclictest3925411-21apt-get11:20:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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