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2025-11-15 - 08:30
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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 20 highest latencies:
System rack8slot7.osadl.org (updated Sat Nov 15, 2025 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25380991918,1cyclictest60250irq/125-lan22:30:002
25380991918,1cyclictest60250irq/125-lan21:00:172
25380991918,1cyclictest60250irq/125-lan20:10:142
25380991817,1cyclictest60250irq/125-lan21:58:442
25380991817,1cyclictest60250irq/125-lan21:18:172
25380991817,1cyclictest60250irq/125-lan19:45:252
25380991717,0cyclictest60250irq/125-lan23:15:202
25380991717,0cyclictest60250irq/125-lan20:55:452
25380991716,1cyclictest60250irq/125-lan22:15:132
25380991716,1cyclictest60250irq/125-lan21:50:182
25380991716,1cyclictest60250irq/125-lan21:45:142
25380991716,1cyclictest60250irq/125-lan20:06:502
25380991716,1cyclictest60250irq/125-lan19:31:442
25380991716,1cyclictest60250irq/125-lan19:15:122
25380991716,1cyclictest60250irq/125-lan00:20:132
25380991716,1cyclictest60250irq/125-lan00:00:202
25380991715,2cyclictest60250irq/125-lan20:30:152
25380991715,2cyclictest60250irq/125-lan20:25:172
25380991616,0cyclictest60250irq/125-lan21:12:442
25380991616,0cyclictest60250irq/125-lan20:15:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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