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2023-12-03 - 02:58
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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.osadl.org (updated Sun Dec 03, 2023 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3299910723353487,53649cyclictest731-21ssh23:54:320
3299910702753415,53548cyclictest9-21ksoftirqd/023:57:230
3299910688953431,53394cyclictest9-21ksoftirqd/000:36:240
3299910675853432,53326cyclictest0-21swapper23:20:120
3299910670953415,53230cyclictest9-21ksoftirqd/000:07:060
3299910665053484,53103cyclictest9-21ksoftirqd/023:34:260
3299910664253431,53211cyclictest0-21swapper21:53:170
3299910656753379,53124cyclictest9-21ksoftirqd/022:18:040
3299910655353390,53097cyclictest0-21swapper21:57:080
3299910649253464,52964cyclictest3950irq/9-acpi21:30:100
3299910648553466,53019cyclictest0-21swapper22:13:130
3299910647753444,53033cyclictest0-21swapper00:00:440
3299910647253474,52998cyclictest0-21swapper21:01:220
3299910644453442,53002cyclictest0-21swapper22:04:400
3299910643753396,53041cyclictest0-21swapper19:41:390
3299910643653436,53000cyclictest0-21swapper00:21:200
3299910643553396,53039cyclictest0-21swapper22:42:410
3299910642453433,52991cyclictest0-21swapper22:58:460
3299910634553466,52879cyclictest0-21swapper19:26:050
3299910629853432,52775cyclictest0-21swapper20:46:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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