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2025-11-17 - 06:05
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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 rack3slot3.osadl.org (updated Mon Nov 17, 2025 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20430210995sleep30-21swapper/319:07:475
20430210995sleep30-21swapper/319:07:465
20376210894sleep80-21swapper/819:07:0310
20376210894sleep80-21swapper/819:07:0310
20272210390sleep110-21swapper/1119:05:413
20272210390sleep110-21swapper/1119:05:413
122501020irq/42-ahci0-21swapper/119:05:131
122501020irq/42-ahci0-21swapper/119:05:131
3066350950irq/52-eth0-rx-0-21swapper/219:07:034
3066350950irq/52-eth0-rx-0-21swapper/219:07:034
3066450860irq/53-eth0-tx-0-21swapper/719:08:409
3066450860irq/53-eth0-tx-0-21swapper/719:08:399
3066350850irq/52-eth0-rx-0-21swapper/519:07:417
3066350850irq/52-eth0-rx-0-21swapper/519:07:417
2060227876sleep40-21swapper/419:09:246
2060227876sleep40-21swapper/419:09:236
2033526556sleep100-21swapper/1019:06:292
2033526556sleep100-21swapper/1019:06:282
2036826055sleep00-21swapper/019:06:560
2036826055sleep00-21swapper/019:06:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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