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2026-03-15 - 10:06
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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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot4.osadl.org (updated Sun Mar 15, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16036998218,58cyclictest25837-21sshd23:48:152
16036997218,48cyclictest30066-21ssh21:03:432
16036997122,42cyclictest1553-21/usr/sbin/munin20:25:492
16036997021,43cyclictest17922-21/usr/sbin/munin19:50:442
16036997021,43cyclictest17922-21/usr/sbin/munin19:50:442
16036996924,38cyclictest22499-21/usr/sbin/munin21:35:492
16036996924,38cyclictest22499-21/usr/sbin/munin21:35:492
16036996922,19cyclictest30220-21iostat_ios18:55:442
16036996920,43cyclictest25983-21/usr/sbin/munin18:45:592
16036996915,48cyclictest10436-21/usr/sbin/munin19:30:512
16036996913,50cyclictest19422-21kworker/2:023:21:102
16036996821,41cyclictest15666-21/usr/sbin/munin23:35:532
16036996820,41cyclictest4903-21grep21:55:412
16036996723,37cyclictest31330-21df_inode21:05:372
16036996722,40cyclictest12305-21/usr/sbin/munin19:35:472
16036996721,40cyclictest19785-21/usr/sbin/munin19:55:502
16036996721,40cyclictest13097-21ssh21:24:132
16036996720,41cyclictest947-21ethtool21:50:372
16036996714,47cyclictest0-21swapper/220:54:122
16036996713,8cyclictest20300-21ssh22:58:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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