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2026-08-04 - 01:21
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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 10 highest latencies:
System rack1slot2.osadl.org (updated Mon Aug 03, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2818225655,0sleep00-21swapper/007:26:060
2820624536,0sleep10-21swapper/107:26:231
2817924536,0sleep20-21swapper/207:26:042
2837523929,0sleep30-21swapper/307:28:213
339960,0migration/324105-21sh11:10:223
339960,0migration/32259-21sh11:36:093
339960,0migration/317027-21sh12:43:233
29805060,0irq/28-eth0-rx-9143-21grep10:04:363
29805060,0irq/28-eth0-rx-32263-21ssh12:33:253
29805060,0irq/28-eth0-rx-19341-21entropy11:29:323
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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