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2024-11-22 - 10:24
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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 Nov 22, 2024 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1535991918,1cyclictest60250irq/125-lan23:16:190
1535991918,1cyclictest60250irq/125-lan23:10:180
1535991918,1cyclictest60250irq/125-lan00:28:500
1535991917,1cyclictest60250irq/125-lan23:47:090
1535991917,1cyclictest60250irq/125-lan22:13:310
1535991818,0cyclictest60250irq/125-lan23:58:050
1535991818,0cyclictest60250irq/125-lan22:40:250
1535991818,0cyclictest60250irq/125-lan22:20:520
1535991818,0cyclictest60250irq/125-lan21:52:120
1535991818,0cyclictest60250irq/125-lan21:44:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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