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2025-11-14 - 21:27
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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 rack0slot7.osadl.org (updated Fri Nov 14, 2025 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25617962210173,33sleep140-21swapper/1419:08:536
25619182178155,14sleep20-21swapper/219:09:458
324455201460,138data-loop.00-21swapper/519:06:3311
324444201460,144data-loop.00-21swapper/319:08:329
324444201370,136data-loop.00-21swapper/1219:06:304
25617852135112,14sleep80-21swapper/819:08:4714
316385221220,0sleep13163802-21dd21:46:331
297538621130,1sleep62975314-21dd20:57:4512
324455201080,71data-loop.00-21swapper/419:08:2310
2561764210860,37sleep150-21swapper/1519:08:387
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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