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2023-10-04 - 09:29
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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 Wed Oct 04, 2023 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1415924920,22sleep00-21swapper/018:58:410
1400024012,8sleep10-21swapper/118:57:011
14330993632,0cyclictest168050irq/16-i91520:20:120
14330993629,6cyclictest248850irq/16-enp2s0f023:40:110
14331993533,1cyclictest168050irq/16-i91520:16:271
14330993533,1cyclictest248850irq/16-enp2s0f020:18:270
14330993527,7cyclictest248850irq/16-enp2s0f019:25:140
14331993432,1cyclictest168050irq/16-i91522:09:491
14331993432,1cyclictest168050irq/16-i91519:40:111
14331993432,1cyclictest168050irq/16-i91519:25:151
14331993432,1cyclictest168050irq/16-i91519:01:431
14330993433,0cyclictest248850irq/16-enp2s0f023:33:450
14330993433,0cyclictest248850irq/16-enp2s0f020:35:550
14330993432,1cyclictest248850irq/16-enp2s0f023:56:510
14330993432,1cyclictest248850irq/16-enp2s0f022:50:190
14330993432,1cyclictest248850irq/16-enp2s0f022:46:550
14330993432,1cyclictest248850irq/16-enp2s0f022:30:070
14330993432,1cyclictest248850irq/16-enp2s0f021:54:270
14330993432,1cyclictest248850irq/16-enp2s0f021:40:120
14330993432,1cyclictest248850irq/16-enp2s0f021:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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