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2026-06-15 - 20:05
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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 rack3slot6.osadl.org (updated Mon Jun 15, 2026 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1627829730,19sleep10-21swapper/107:07:221
16713999519,59cyclictest0-21swapper/108:35:111
1671399867,64cyclictest5062-21apt-get11:30:141
16713998616,55cyclictest0-21swapper/111:15:121
16713998615,55cyclictest0-21swapper/112:15:141
1580028638,29sleep00-21swapper/007:05:270
1671399855,64cyclictest4877-21apt-get08:05:151
16713998514,57cyclictest0-21swapper/108:15:131
16713998514,56cyclictest0-21swapper/109:45:091
16713998513,61cyclictest0-21swapper/111:50:131
16713998510,59cyclictest13650-21runrttasks08:30:141
1671399846,62cyclictest15589-21apt-get12:00:141
16713998415,58cyclictest0-21swapper/110:50:141
1671399837,58cyclictest32456-21apt-get09:30:091
1671399836,65cyclictest6658-21apt-get08:10:121
16713998314,59cyclictest0-21swapper/108:25:161
16713998314,54cyclictest0-21swapper/110:45:141
16713998314,54cyclictest0-21swapper/109:05:131
1671399826,63cyclictest26983-21apt-get11:00:131
16713998214,57cyclictest0-21swapper/107:10:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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