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2026-09-19 - 11:59
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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 Sep 19, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172475721630,2sleep30-21swapper/321:04:303
17403632860,2sleep20-21swapper/221:14:432
20987102600,2sleep00-21swapper/000:39:220
20866542350,3sleep12086647-21munin-run00:30:001
20059452350,2sleep0241rcuc/023:46:500
18239622320,1sleep00-21swapper/022:04:240
16049382290,1sleep10-21swapper/119:39:221
156371499249,6cyclictest0-21swapper/022:44:210
156371499249,6cyclictest0-21swapper/022:44:210
1563714992414,6cyclictest1930003-21kthreadcore23:04:220
1563716992218,2cyclictest82050irq/121-eno122:54:181
1563714992219,2cyclictest24472-21rtkit-daemon19:53:240
1563714992216,1cyclictest2071256-21apt-get00:24:010
156371499218,7cyclictest0-21swapper/000:14:020
1563720992018,1cyclictest0-21swapper/221:42:332
1563716992016,2cyclictest82050irq/121-eno100:24:211
1563716992014,5cyclictest24617-21JS14:54:061
156371499207,7cyclictest0-21swapper/022:59:000
156371499200,14cyclictest0-21swapper/020:34:010
2213291190,2phc2sys0-21swapper/300:18:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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