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2026-06-05 - 19:40
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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 20 highest latencies:
System rack1slot8.osadl.org (updated Fri Jun 05, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18452728698,22sleep10-21swapper/107:05:201
283699397329,42cyclictest0-21swapper/007:11:090
283799388318,40cyclictest0-21swapper/107:11:091
27392307283,16sleep00-21swapper/007:09:200
3166721030,4sleep1283799cyclictest09:40:151
228699920,4rtkit-daemon2285-21rtkit-daemon10:59:011
283699835,10cyclictest18212-21ssh12:10:160
2836998014,51cyclictest0-21swapper/009:50:110
283699786,16cyclictest0-21swapper/010:11:560
2836997830,42cyclictest88850irq/46-eth0-tx-09:15:150
228699770,4rtkit-daemon2285-21rtkit-daemon11:08:061
283699745,16cyclictest0-21swapper/009:15:010
2836997328,32cyclictest88850irq/46-eth0-tx-10:35:150
283699732,65cyclictest20474-21cat11:15:240
283699729,46cyclictest0-21swapper/012:35:220
283699725,8cyclictest3092-21df_inode10:45:130
283699725,61cyclictest0-21swapper/010:50:590
283699725,10cyclictest0-21swapper/010:31:410
283699724,15cyclictest0-21swapper/009:56:210
283699723,8cyclictest28086-21munin-run08:20:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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