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2026-01-05 - 05:38
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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 rack7slot8.osadl.org (updated Mon Jan 05, 2026 01:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22387228936,208sleep022198-21/usr/sbin/munin19:05:170
233869911243,48cyclictest1408-21nginx23:51:340
233869911233,25cyclictest29493-21runrttasks21:37:060
233869910645,41cyclictest0-21swapper/021:30:220
233869910136,34cyclictest1305-21snmpd20:53:290
233869910121,30cyclictest25371-21fw_conntrack19:15:460
233869910030,49cyclictest12384-21apt-get22:40:260
23386999954,34cyclictest23228-21fw_conntrack21:15:410
23386999936,48cyclictest14200-21wget22:45:140
23386999911,33cyclictest24097-21apt-get21:22:090
23386999758,29cyclictest16239-21ntp_states22:51:180
23386999657,30cyclictest1408-21nginx22:11:340
23386999629,47cyclictest23289-21wget23:20:140
23386999624,19cyclictest4200-21irqstats20:00:310
23386999569,11cyclictest101ktimersoftd/020:23:220
23386999553,27cyclictest101ktimersoftd/000:25:420
23386999552,30cyclictest621-21cron00:00:010
23386999538,43cyclictest0-21swapper/021:25:360
23386999533,22cyclictest19894-21ntp_states23:05:380
23386999522,35cyclictest10315-21sshd22:30:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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