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2026-06-16 - 12:25
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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 Tue Jun 16, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10340382690,1sleep01034036-21ssh22:33:300
11377222300,2sleep11137723-21cron23:45:011
760346992823,1cyclictest8908031systemd-run20:55:020
760347992715,2cyclictest67250irq/126-eno100:00:011
760347992414,2cyclictest67250irq/126-eno122:50:221
760347992414,2cyclictest67250irq/126-eno121:35:021
760346992313,4cyclictest1043480-21irqrtprio22:40:210
760346992219,2cyclictest865918-21apt-key20:35:010
31537912214,3phc2sys0-21swapper/319:10:023
760348992119,1cyclictest0-21swapper/222:05:022
760348992118,1cyclictest0-21swapper/223:45:012
760348992118,1cyclictest0-21swapper/222:25:222
760348992118,1cyclictest0-21swapper/220:30:012
760347992118,2cyclictest1167209-21systemd00:05:011
760347992112,1cyclictest67250irq/126-eno122:49:361
760347992112,1cyclictest67250irq/126-eno122:49:361
76034799210,3cyclictest890336-21apt-get20:55:021
760346992118,2cyclictest0-21swapper/021:10:010
760346992110,6cyclictest1086930-21cpuspeed_turbos23:10:160
760346992110,4cyclictest1128886-21sshd23:35:360
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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