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2026-05-30 - 07:14
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 20 highest latencies:
System rackeslot2.osadl.org (updated Sat May 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
130081221080,1sleep3551rcuc/319:15:033
17216052730,2sleep30-21swapper/300:14:513
14579322700,1sleep10-21swapper/121:19:531
13524712380,1sleep11352473-21grep19:59:461
16377412280,2sleep11637695-21ssh23:19:501
1292318992622,1cyclictest0-21swapper/221:50:002
1292316992522,2cyclictest1612448-21/usr/sbin/munin23:00:010
1292318992421,1cyclictest0-21swapper/223:05:012
1292317992418,2cyclictest191rcu_preempt21:54:521
1292316992421,2cyclictest1376809-21systemd-run20:15:010
1292316992420,2cyclictest0-21swapper/021:25:010
1292316992316,6cyclictest0-21swapper/023:35:010
383433398220,2rtkit-daemon1598737-21ssh22:53:440
1292317992219,2cyclictest1695300-21sh23:55:011
1292317992219,2cyclictest1-21systemd23:30:011
1292316992219,2cyclictest0-21swapper/000:10:040
1292316992218,3cyclictest1755854-21apt-get00:35:010
1292316992213,5cyclictest1722068-21kthreadcore00:14:520
129231699220,19cyclictest1657784-21sh23:30:020
383433398210,4rtkit-daemon3851702-21mta-sts-daemon00:37:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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