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2026-03-18 - 17:53
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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 Mar 18, 2026 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1928503993532,2cyclictest2009452-21fwupd08:29:331
1928509993128,2cyclictest2134996-21irqcore10:30:143
1928499992826,1cyclictest1978854-21kworker/0:2+pm08:29:350
192850599262,21cyclictest2004710-21apt-get08:25:122
192850399261,21cyclictest0-21swapper/108:35:101
192850999251,4cyclictest1988212-21ntp_kernel_err08:05:193
192850999251,21cyclictest0-21swapper/307:25:113
192850999251,20cyclictest0-21swapper/307:55:143
192850999251,20cyclictest0-21swapper/307:45:123
1928505992521,2cyclictest2072382-21apt-get09:30:112
192850399252,20cyclictest2056281-21apt-get09:15:111
1928503992521,2cyclictest2170015-21apt-get11:05:111
192850399251,20cyclictest2093080-21apt-get09:50:111
1928509992419,3cyclictest1989408-21apt-get08:10:123
192850999241,20cyclictest2051210-21apt-get09:10:103
192850999241,20cyclictest0-21swapper/312:10:123
192850999240,22cyclictest2020811-21irqcore08:40:143
192850999240,21cyclictest0-21swapper/310:05:123
192850999240,21cyclictest0-21swapper/310:05:113
1928505992420,2cyclictest1994484-21apt-get08:15:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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