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2026-05-13 - 19:24
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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 rackfslot7.osadl.org (updated Wed May 13, 2026 12:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
113112399855,79cyclictest0-21swapper/109:05:121
1131125997435,38cyclictest90650irq/68-eno6-TxRx-611:03:523
1131125997435,38cyclictest90650irq/68-eno6-TxRx-611:03:513
1131125997434,39cyclictest0-21swapper/310:49:083
1131125997411,40cyclictest1132336-21if_err_eno607:10:183
1131125997354,19cyclictest0-21swapper/309:11:393
1131125997354,0cyclictest0-21swapper/311:41:553
1131125997334,38cyclictest90650irq/68-eno6-TxRx-612:24:243
1131125997334,38cyclictest0-21swapper/311:33:473
1131125997254,18cyclictest0-21swapper/309:55:593
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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