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2025-11-19 - 06:19
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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 Wed Nov 19, 2025 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20137992018,2cyclictest60250irq/125-lan21:30:202
20137991916,1cyclictest60250irq/125-lan23:10:202
20137991915,1cyclictest60250irq/125-lan00:00:002
20137991818,0cyclictest60250irq/125-lan22:20:192
20137991818,0cyclictest60250irq/125-lan20:44:262
20137991817,1cyclictest60250irq/125-lan19:35:172
20137991816,1cyclictest60250irq/125-lan23:00:272
20137991816,1cyclictest60250irq/125-lan20:35:232
20137991816,0cyclictest60250irq/125-lan22:05:232
20137991717,0cyclictest60250irq/125-lan23:35:262
20137991717,0cyclictest60250irq/125-lan23:20:272
20137991717,0cyclictest60250irq/125-lan20:31:222
20137991717,0cyclictest60250irq/125-lan00:35:242
20137991716,1cyclictest60250irq/125-lan23:06:122
20137991716,1cyclictest60250irq/125-lan19:25:162
20125991717,0cyclictest22045-21fwupd23:06:270
20137991616,0cyclictest60250irq/125-lan22:15:342
20137991616,0cyclictest60250irq/125-lan21:19:262
20137991615,1cyclictest60250irq/125-lan23:30:142
20137991615,1cyclictest60250irq/125-lan21:55:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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