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2025-11-01 - 23:08
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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 rackfslot7.osadl.org (updated Sat Nov 01, 2025 12:46:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3346372997718,40cyclictest3483348-21df_inode11:10:137
3346372997617,39cyclictest3380902-21sed08:10:027
3346372997535,39cyclictest3362085-21ntpq07:35:207
3346372997233,19cyclictest0-21swapper/712:20:597
3346372997218,15cyclictest0-21swapper/709:10:287
3346372997132,39cyclictest0-21swapper/710:37:367
3346372997113,19cyclictest0-21swapper/708:00:587
3346372996911,19cyclictest0-21swapper/712:25:297
3346372996911,19cyclictest0-21swapper/712:25:297
3346372996911,19cyclictest0-21swapper/710:44:497
3346372996910,19cyclictest0-21swapper/707:52:307
3346372996827,19cyclictest34363422sleep709:45:287
334637299679,19cyclictest0-21swapper/711:41:457
334637299679,19cyclictest0-21swapper/709:39:547
334637299668,39cyclictest3528553-21sh12:30:177
334637299668,19cyclictest0-21swapper/708:51:507
334637299657,19cyclictest0-21swapper/711:16:377
334637299646,39cyclictest3502791-21apt-get11:45:117
334637299645,39cyclictest0-21swapper/709:06:347
3346372996444,19cyclictest0-21swapper/707:55:187
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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