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2026-07-04 - 22:07
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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 Jul 04, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
195239521060,1sleep20-21swapper/210:19:522
20448442580,1sleep02044842-21ssh11:20:140
492398260,7rtkit-daemon1237-21mta-sts-daemon07:56:510
492398260,7rtkit-daemon1237-21mta-sts-daemon07:56:510
170307499261,13cyclictest1866225-21munin-run09:20:010
1703075992515,3cyclictest738-21gdbus09:30:021
492398240,5rtkit-daemon1237-21mta-sts-daemon07:29:051
1703075992320,2cyclictest1910443-21sed09:50:001
1703074992314,5cyclictest2155076-21/usr/sbin/munin12:34:590
17559892220,2sleep20-21swapper/207:54:522
1703075992219,2cyclictest693-21systemd-logind07:25:011
1703075992219,2cyclictest0-21swapper/111:35:001
1703075992216,2cyclictest67250irq/126-eno110:35:021
1703074992219,2cyclictest2081516-21grep11:45:020
1703074992213,5cyclictest1949729-21/usr/sbin/munin10:19:540
1703074992118,2cyclictest1760461-21latency_hist07:55:020
17723622200,1sleep20-21swapper/208:04:582
1703075992017,2cyclictest2162814-21/usr/sbin/munin12:40:021
1703075992017,1cyclictest0-21swapper/110:40:011
1703075992016,3cyclictest1962488-21find10:25:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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