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2026-05-15 - 09:29
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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 10 highest latencies:
System rack7slot8.osadl.org (updated Thu May 14, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21417991689,139cyclictest4707-21chrt08:10:300
21417991657,137cyclictest21562-21/usr/sbin/munin11:25:160
21417991648,17cyclictest30855-21diskstats07:45:380
214179916124,96cyclictest1408-21nginx07:44:460
21417991609,17cyclictest5610-21apt-get12:27:220
21417991607,16cyclictest25669-21df11:40:150
214179915923,118cyclictest4202-21apt-get12:25:040
214179915826,112cyclictest1305-21snmpd08:10:000
214179915715,123cyclictest7762-21wget10:30:130
214179915615,18cyclictest1408-21nginx08:36:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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