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2026-06-17 - 17:20
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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 Wed Jun 17, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
65762572551,15sleep10-21swapper/107:06:071
7000995134,496cyclictest0-21swapper/007:13:210
69412429406,16sleep00-21swapper/007:09:450
700099393333,52cyclictest0-21swapper/007:55:120
700199334305,16cyclictest23473-21cut07:55:111
7000998265,11cyclictest0-21swapper/012:13:510
700099783,34cyclictest14874-21iostat07:30:180
7001997664,7cyclictest244062sleep112:15:131
700099762,68cyclictest23557-21latency_hist09:20:020
700099762,68cyclictest23557-21latency_hist09:20:020
7000997517,52cyclictest88850irq/46-eth0-tx-12:19:450
228699750,3rtkit-daemon2285-21rtkit-daemon07:19:420
200512750,3sleep1271ktimersoftd/111:09:141
700099735,63cyclictest0-21swapper/012:27:540
700099733,46cyclictest18357-21ssh12:04:210
700099732,65cyclictest12074-21ssh11:51:570
700099724,62cyclictest0-21swapper/009:25:510
700099724,54cyclictest0-21swapper/011:02:220
700099724,42cyclictest12257-21ssh10:55:110
7001997155,11cyclictest0-21swapper/109:41:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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