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2026-03-14 - 07:19
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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 14, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2511494993221,9cyclictest2788309-21cut23:40:143
2511491993229,2cyclictest2756473-21fwupd23:06:032
2511494993027,2cyclictest136-1kworker/3:1H+kblockd23:06:033
251149499302,25cyclictest2511705-21apt-get19:10:123
251149499300,29cyclictest2705326-21ntpq22:15:203
251149499290,28cyclictest2746743-21awk23:00:003
251149499290,26cyclictest2707013-21ps22:20:163
251149499281,24cyclictest0-21swapper/321:55:113
251149499280,26cyclictest2623576-21cron21:00:013
251149499280,26cyclictest0-21swapper/319:20:003
251149499280,25cyclictest0-21swapper/320:50:113
2511494992719,6cyclictest0-21swapper/300:05:123
251148999273,22cyclictest261-21systemd-journal21:00:011
251149499261,21cyclictest2828746-21apt-get00:20:153
251149499260,1cyclictest0-21swapper/321:05:003
251149499260,13cyclictest2821047-21grep00:10:173
2511491992617,1cyclictest2675423-21grep21:50:002
251148999261,21cyclictest2839301-21apt-get00:30:101
2511494992520,4cyclictest2547574-21apt-get19:45:113
251149499250,1cyclictest0-21swapper/320:20:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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