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2024-07-27 - 03:50
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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 Sat Jul 27, 2024 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
95749910719953463,53639cyclictest2103-21runrttasks20:20:390
95749910708053418,53662cyclictest0-21swapper22:32:470
95749910702953453,53453cyclictest5021-21ssh21:24:170
95749910701553460,53459cyclictest26907-21diskmemload23:52:500
95749910698553420,53472cyclictest0-21swapper21:37:410
95749910673553386,53285cyclictest24890-21kworker/0:023:25:020
95749910672653398,53328cyclictest0-21swapper23:40:060
95749910669753422,53275cyclictest0-21swapper23:33:240
95749910667053456,53124cyclictest9-21ksoftirqd/000:37:230
95749910655753476,53081cyclictest0-21swapper00:16:270
95749910654553387,53067cyclictest0-21swapper22:58:540
95749910654453403,53141cyclictest0-21swapper20:15:470
95749910648953409,53080cyclictest0-21swapper19:56:320
95749910648653467,53019cyclictest0-21swapper21:45:430
95749910648553407,53078cyclictest0-21swapper21:13:040
95749910645353405,53048cyclictest0-21swapper20:11:360
95749910644753462,52985cyclictest0-21swapper20:44:250
95749910639153469,52859cyclictest9-21ksoftirqd/023:01:050
95749910630453393,52845cyclictest0-21swapper19:26:530
95749910624153391,52805cyclictest0-21swapper21:55:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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