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2025-08-21 - 22:10
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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 Thu Aug 21, 2025 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26682991918,1cyclictest60250irq/125-lan12:15:162
26682991918,1cyclictest60250irq/125-lan12:10:192
26682991918,1cyclictest60250irq/125-lan10:20:152
26682991918,1cyclictest60250irq/125-lan09:35:132
26682991818,0cyclictest60250irq/125-lan11:07:232
26682991818,0cyclictest60250irq/125-lan08:52:232
26682991817,1cyclictest60250irq/125-lan11:55:172
26682991817,1cyclictest60250irq/125-lan10:15:152
26682991817,1cyclictest60250irq/125-lan09:10:322
26682991817,1cyclictest60250irq/125-lan08:20:142
26682991817,1cyclictest60250irq/125-lan07:10:122
26682991717,0cyclictest60250irq/125-lan12:21:082
26682991717,0cyclictest60250irq/125-lan07:25:222
26682991716,1cyclictest60250irq/125-lan12:25:222
26682991716,1cyclictest60250irq/125-lan11:47:222
26682991716,1cyclictest60250irq/125-lan11:41:022
26682991716,1cyclictest60250irq/125-lan10:45:002
26682991716,1cyclictest60250irq/125-lan10:35:152
26682991716,1cyclictest60250irq/125-lan10:30:222
26682991716,1cyclictest60250irq/125-lan09:50:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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