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2026-06-19 - 11:30
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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 50 highest latencies:
System rack8slot4.osadl.org (updated Fri Jun 19, 2026 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17481182231172,19sleep50-21swapper/519:08:015
17479912229165,19sleep00-21swapper/019:06:110
17481932224160,18sleep40-21swapper/419:09:044
17481622223165,19sleep20-21swapper/219:08:382
17480742219169,19sleep60-21swapper/619:07:216
17481202213165,36sleep70-21swapper/719:08:037
17480212210180,20sleep30-21swapper/319:06:383
17480492207178,19sleep10-21swapper/119:07:001
174847499340,33cyclictest0-21swapper/523:45:015
1748470993428,5cyclictest1-21systemd20:45:013
1748470993428,5cyclictest1-21systemd20:45:013
174846899330,32cyclictest1-21systemd20:25:012
1748464993226,5cyclictest1902660-21sed23:45:011
174846499320,0cyclictest0-21swapper/122:25:031
174846299320,31cyclictest1762986-21cron19:35:010
174848199311,29cyclictest90-21ksoftirqd/722:05:027
174848199311,25cyclictest90-21ksoftirqd/720:55:057
174847799310,30cyclictest1-21systemd23:55:016
1748474993126,4cyclictest1933837-21cron00:40:015
174847399310,3cyclictest1802131-21sed20:45:014
174847399310,3cyclictest1802131-21sed20:45:014
174846499310,3cyclictest1782497-21cron20:10:011
174848199300,1cyclictest1807618-21cron20:55:017
174848199300,1cyclictest1807618-21cron20:55:017
174847799300,29cyclictest0-21swapper/623:45:016
1748474993027,3cyclictest0-21swapper/523:35:055
1748474993022,3cyclictest1896772-21munin-run23:35:015
1748470993027,2cyclictest1-21systemd00:00:013
1748468993028,1cyclictest1802492-21apt-get20:45:052
1748468993028,1cyclictest1802492-21apt-get20:45:052
1748464993025,5cyclictest0-21swapper/123:45:051
174846499300,30cyclictest1841487-21apt-get21:55:051
1748481992928,1cyclictest17850irq/4-ttyS000:40:017
1748481992928,1cyclictest0-21swapper/721:30:017
1748481992927,1cyclictest881rcuc/722:00:017
1748481992927,1cyclictest1882836-21cron23:10:017
174848199290,29cyclictest1847056-21apt-get22:05:047
174848199290,28cyclictest0-21swapper/723:50:047
174848199290,28cyclictest0-21swapper/723:40:067
174848199290,28cyclictest0-21swapper/722:35:027
174848199290,28cyclictest0-21swapper/719:30:027
174847799290,28cyclictest0-21swapper/620:25:056
1748474992927,1cyclictest1802108-21appstreamcli20:45:025
1748474992927,1cyclictest1802108-21appstreamcli20:45:025
1748474992926,3cyclictest0-21swapper/523:45:035
1748474992926,2cyclictest1844281-21apt-get22:00:045
174847499290,28cyclictest0-21swapper/519:30:045
174847499290,28cyclictest0-21swapper/500:25:055
174847499290,28cyclictest0-21swapper/500:25:055
174847499290,1cyclictest1774545-21apt-get19:55:035
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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