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2025-11-26 - 07:37
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack3slot2.osadl.org (updated Wed Nov 26, 2025 00:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165679922580,3chrt1656785-21ntpq21:31:090
169779322540,2sleep01697794-21/usr/sbin/munin23:31:520
170572122510,3chrt1705713-21irqstats23:55:340
167311822510,3chrt1673089-21munin-run22:20:030
166446922440,3chrt1664468-21ssh21:54:180
168723122420,3chrt1687228-21ntpq23:00:530
171674022400,3chrt1716739-21ssh00:27:260
167996122400,2sleep01679963-21wc22:40:110
166026322390,4chrt1660257-21ntp_states21:41:260
165169322230,3chrt1651688-21ntpq21:16:040
167665022140,2sleep01676651-21date22:30:130
162588922110,2sleep01625888-21/usr/sbin/munin19:45:170
168257822050,2sleep01682581-21wc22:47:000
161590099203174,17cyclictest1698608-21kworker/u2:323:35:290
166824122020,2sleep01668242-21ssh22:05:180
164098522020,2sleep01640986-21cron20:40:010
161590099194164,18cyclictest1613106-21kworker/u2:019:20:050
161590099193163,18cyclictest1665982-21kworker/u2:322:01:370
161590099192159,22cyclictest1707697-21munin-node00:01:060
161590099188161,18cyclictest1682866-21kworker/u2:323:25:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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