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2024-09-07 - 15:36
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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 Sep 07, 2024 12:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22357992018,2cyclictest60250irq/125-lan12:20:110
22357991919,0cyclictest60250irq/125-lan10:56:390
22357991918,1cyclictest60250irq/125-lan12:31:560
22357991918,1cyclictest60250irq/125-lan11:55:170
22357991918,1cyclictest60250irq/125-lan10:49:410
22357991918,1cyclictest60250irq/125-lan10:33:060
22357991918,1cyclictest60250irq/125-lan10:10:330
22357991918,1cyclictest60250irq/125-lan09:11:170
22357991918,1cyclictest60250irq/125-lan08:20:150
22357991818,0cyclictest60250irq/125-lan11:43:570
22357991818,0cyclictest60250irq/125-lan09:22:590
22357991817,1cyclictest60250irq/125-lan12:25:130
22357991817,1cyclictest60250irq/125-lan12:18:170
22357991817,1cyclictest60250irq/125-lan11:50:130
22357991817,1cyclictest60250irq/125-lan11:45:090
22357991817,1cyclictest60250irq/125-lan11:28:210
22357991817,1cyclictest60250irq/125-lan11:21:040
22357991817,1cyclictest60250irq/125-lan11:15:130
22357991817,1cyclictest60250irq/125-lan10:39:310
22357991817,1cyclictest60250irq/125-lan10:29:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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