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2026-04-10 - 04:08
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rackbslot7.osadl.org (updated Fri Apr 10, 2026 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1199214310,88sleep01261-21fschecks_time18:59:510
1199214310,88sleep01261-21fschecks_time18:59:510
137721367,86sleep11456-21latency18:59:561
137721367,86sleep11456-21latency18:59:561
103221307,15sleep20-21swapper/218:59:412
103221307,15sleep20-21swapper/218:59:412
24519911645,40cyclictest21786-21sh22:16:372
24319911359,47cyclictest2952-21systemd-journal23:54:420
24319911359,47cyclictest2952-21systemd-journal23:54:420
24319911357,9cyclictest20915-21ssh23:09:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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