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2025-11-18 - 10:23
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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
Characteristics of the 20 highest latencies:
System rack6slot6 (updated Tue Nov 18, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
638399209924105443,104479cyclictest0-21swapper21:56:110
63839910747653475,53905cyclictest11135-21diskmemload23:11:230
63839910735953450,53812cyclictest11135-21diskmemload22:15:370
63839910706253413,53551cyclictest16781-21ssh00:18:220
63839910669453440,53254cyclictest0-21swapper20:22:140
63839910666153433,53102cyclictest11135-21diskmemload22:31:410
63839910657953409,53104cyclictest0-21swapper00:27:250
63839910656153460,53101cyclictest0-21swapper19:47:540
63839910653453437,53097cyclictest0-21swapper20:54:030
63839910650353469,53034cyclictest0-21swapper20:56:440
63839910648853462,53026cyclictest0-21swapper19:51:350
63839910648453461,53023cyclictest0-21swapper20:43:000
63839910648053463,53017cyclictest0-21swapper00:11:300
63839910646653455,53011cyclictest0-21swapper22:22:590
63839910645053455,52995cyclictest0-21swapper22:01:330
63839910642453431,52993cyclictest0-21swapper23:20:050
63839910631253472,52840cyclictest0-21swapper22:48:060
63839910629253452,52840cyclictest0-21swapper21:02:160
63839910628953398,52891cyclictest0-21swapper21:30:040
63839910627053397,52808cyclictest9-21ksoftirqd/021:09:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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