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2026-06-25 - 23:16
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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 rackbslot7.osadl.org (updated Thu Jun 25, 2026 12:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
6505991494,72cyclictest8504-21ssh09:43:370
65139910980,19cyclictest2374-21systemd-journal12:09:321
65199910545,11cyclictest0-21swapper/210:53:212
65199910336,12cyclictest0-21swapper/211:48:562
65199910239,13cyclictest0-21swapper/208:13:232
65199910239,13cyclictest0-21swapper/208:13:232
65199910154,40cyclictest0-21swapper/208:18:452
65199910137,12cyclictest0-21swapper/209:18:482
65139910048,45cyclictest352-21runrttasks11:23:361
1223621000,7sleep20-21swapper/207:13:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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