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2026-09-15 - 02:53
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack7slot3.osadl.org (updated Tue Sep 15, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
887299268104cyclictest11957-21ssh21:41:220
887299259130cyclictest17411-21kernelversion00:27:570
887299258137cyclictest18304-21ssh22:08:270
887299258131cyclictest13690-21sshd21:48:150
88729925188cyclictest862-21sh23:16:040
887299251124cyclictest24862-21sendmail20:16:110
887299247215cyclictest9167-21munin-node0
7806224621sleep7808-21cpuspeed19:01:210
887299232207cyclictest28317-21sshd20:31:150
887299232205cyclictest16850-21ssh00:26:100
887299232168cyclictest4005-21diskmemload22:21:130
887299231206cyclictest10220-21sed21:32:580
887299231205cyclictest28473-21ntp_states22:53:390
887299230200cyclictest15827-21munin-node0
887299229203cyclictest21392-21if_eth022:22:390
887299229201cyclictest3894-21memory23:28:070
887299229165cyclictest2726-21memory23:23:010
887299228208cyclictest327362sleep20:49:080
887299227196cyclictest11252-21munin-node0
887299227165cyclictest8130-21ntp_states21:23:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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