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2026-04-03 - 11:49
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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 Fri Apr 03, 2026 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
182036899291,1cyclictest1825395-21turbostat19:15:000
182037499272,21cyclictest1855932-21apt-get19:45:122
1820374992713,2cyclictest2875-21cron19:39:592
1820378992620,3cyclictest1983395-21apt-get21:50:123
182037899261,21cyclictest1999024-21apt-get22:05:123
182037499261,22cyclictest2141963-21apt-get00:25:132
182037199261,5cyclictest2009626-21sed22:15:161
182037199261,5cyclictest1957777-21sh21:25:011
182037199260,24cyclictest1840520-21cron19:29:591
182037899250,3cyclictest1978031-21ls21:45:013
1820374992519,3cyclictest1968152-21apt-get21:35:102
182037499250,21cyclictest1993897-21apt-get22:00:042
182037199252,21cyclictest1901957-21apt-get20:30:111
182037899241,20cyclictest2039691-21apt-get22:45:133
1820374992419,3cyclictest2081069-21apt-get23:25:122
1820374992419,3cyclictest1917140-21apt-get20:45:112
182037499241,21cyclictest2121455-21cron00:05:002
1820371992422,1cyclictest0-21swapper/123:35:121
182037199241,21cyclictest2055343-21apt-get23:00:111
182037199241,21cyclictest1937334-21apt-get21:05:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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