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2025-05-09 - 05:45
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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
Compare latency of primary with shadow system
Characteristics of the 10 highest latencies:
System rack8slot7.osadl.org (updated Fri May 09, 2025 00:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18526991918,1cyclictest60250irq/125-lan22:38:462
18526991817,1cyclictest60250irq/125-lan23:45:202
18526991817,1cyclictest60250irq/125-lan23:36:022
18526991817,1cyclictest60250irq/125-lan23:01:252
18526991817,1cyclictest60250irq/125-lan22:40:122
18526991817,1cyclictest60250irq/125-lan22:22:572
18526991817,1cyclictest60250irq/125-lan22:18:572
18526991817,1cyclictest60250irq/125-lan22:00:192
18526991817,1cyclictest60250irq/125-lan21:35:522
18526991817,1cyclictest60250irq/125-lan21:15:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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