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2025-12-06 - 18:44
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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 rack5slot7.osadl.org (updated Sat Dec 06, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14748225890,11sleep012659-1kworker/u3:005:37:050
151309917642,115cyclictest1590-21diskmemload09:10:460
151309917013,132cyclictest11290-21/usr/sbin/munin08:01:540
151309916918,127cyclictest7457-21apt-get11:05:480
151309916917,128cyclictest8556-21ntp_states09:31:440
151309916815,129cyclictest5688-21/usr/sbin/munin11:01:140
151309916716,127cyclictest4646-21apt-get09:20:340
151309916716,125cyclictest20084-21ntp_states08:26:420
151309916616,27cyclictest24812-21fw_conntrack10:21:150
151309916616,126cyclictest27575-21apt-get08:50:420
151309916615,126cyclictest19426-21ssh10:05:380
151309916518,24cyclictest28370-21apt-get06:50:320
151309916518,124cyclictest3858-21/usr/sbin/munin10:55:170
151309916517,124cyclictest3084-21apt-get09:15:350
151309916516,108cyclictest18185-21fw_conntrack10:01:130
151309916511,131cyclictest15445-21/usr/sbin/munin09:51:520
151309916418,120cyclictest19235-21munin-run06:00:160
151309916416,22cyclictest17839-21apt-get08:20:400
151309916416,123cyclictest26434-21memory08:46:340
151309916415,126cyclictest21691-21ssh08:31:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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