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2026-06-03 - 05:32
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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 Wed Jun 03, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1764524637,0sleep20-21swapper/219:21:282
1754324535,0sleep30-21swapper/319:20:173
1215523827,0sleep00-21swapper/019:19:340
1785623026,0sleep10-21swapper/119:23:511
179599985,0cyclictest0-21swapper/122:47:221
179599973,0cyclictest8596-21awk23:14:311
179599973,0cyclictest3571-21lldpd21:45:181
179599973,0cyclictest27539-21sadc21:34:161
179599973,0cyclictest2141-21awk23:29:301
179599973,0cyclictest2109-21sadc20:34:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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