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2026-06-02 - 13:47
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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 02, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32401672980,1sleep00-21swapper/023:44:450
30571672970,1sleep00-21swapper/021:40:510
31671842780,2sleep20-21swapper/222:54:492
2857885992522,2cyclictest1290-21dbus-daemon23:15:020
383433398240,7rtkit-daemon3851705-21mta-sts-daemon23:50:280
30793842230,3sleep30-21swapper/321:55:013
2857885992320,2cyclictest3056589-21idleruntime-cro21:40:000
2857885992315,4cyclictest3148758-21sshd22:42:540
2857885992312,6cyclictest0-21swapper/022:40:020
2857885992312,6cyclictest0-21swapper/022:40:020
2857886992219,2cyclictest3305907-21latency_hist00:25:011
2857886992219,2cyclictest3162672-21systemd-run22:50:001
2857886992210,5cyclictest0-21swapper/122:24:441
2857885992219,2cyclictest3305852-21apt-key00:25:010
2857885992213,5cyclictest3309223-21kthreadcore00:29:490
2857885992212,4cyclictest1290-21dbus-daemon20:35:010
2857885992211,5cyclictest3227269-21kthreadcore23:34:490
2857885992118,2cyclictest3207974-21grep23:20:020
2857887992018,1cyclictest0-21swapper/223:00:012
2857886992017,2cyclictest3102106-21/usr/sbin/munin22:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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