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2025-09-15 - 23:00
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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 Mon Sep 15, 2025 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5222991818,0cyclictest60250irq/125-lan12:35:172
5222991818,0cyclictest329-21hwrng09:26:242
5222991717,0cyclictest60250irq/125-lan11:05:132
5222991717,0cyclictest60250irq/125-lan10:00:392
5222991717,0cyclictest60250irq/125-lan09:31:162
5222991716,1cyclictest60250irq/125-lan12:30:012
5222991716,1cyclictest60250irq/125-lan12:30:012
5222991716,1cyclictest60250irq/125-lan11:25:212
5222991716,1cyclictest60250irq/125-lan11:25:012
5222991716,1cyclictest60250irq/125-lan10:50:182
5222991716,1cyclictest60250irq/125-lan08:40:132
5222991716,1cyclictest60250irq/125-lan08:10:162
5222991616,0cyclictest60250irq/125-lan12:25:202
5222991616,0cyclictest60250irq/125-lan11:30:172
5222991616,0cyclictest60250irq/125-lan10:48:382
5222991616,0cyclictest60250irq/125-lan10:26:162
5222991616,0cyclictest60250irq/125-lan10:19:532
5222991616,0cyclictest60250irq/125-lan08:05:162
5222991616,0cyclictest60250irq/125-lan07:55:302
5222991616,0cyclictest60250irq/125-lan07:10:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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