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2025-07-05 - 18:57
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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
Characteristics of the 20 highest latencies:
System rack6slot2.osadl.org (updated Sat Jul 05, 2025 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
312922630,1sleep00-21swapper/012:00:100
75492479,8sleep00-21swapper/007:01:090
75702398,24sleep10-21swapper/107:01:221
7969993534,0cyclictest167950irq/16-i91508:29:531
7968993534,0cyclictest245950irq/16-enp2s0f007:38:560
7968993533,1cyclictest245950irq/16-enp2s0f011:05:080
7969993433,0cyclictest167950irq/16-i91509:03:471
7969993432,1cyclictest167950irq/16-i91512:01:271
7969993432,1cyclictest167950irq/16-i91511:10:091
7969993432,1cyclictest167950irq/16-i91510:37:271
7969993432,1cyclictest167950irq/16-i91510:08:101
7969993432,1cyclictest167950irq/16-i91509:38:041
7969993432,1cyclictest167950irq/16-i91508:37:141
7969993432,1cyclictest167950irq/16-i91507:27:451
7968993433,0cyclictest245950irq/16-enp2s0f012:32:130
7968993433,0cyclictest245950irq/16-enp2s0f008:36:010
7968993433,0cyclictest245950irq/16-enp2s0f008:29:530
7968993432,1cyclictest245950irq/16-enp2s0f011:30:070
7968993432,1cyclictest245950irq/16-enp2s0f009:30:060
7968993432,1cyclictest245950irq/16-enp2s0f009:19:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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