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2025-01-21 - 22:20
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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 Tue Jan 21, 2025 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5862991918,1cyclictest60250irq/125-lan11:58:160
5862991918,1cyclictest60250irq/125-lan11:51:490
5862991918,1cyclictest60250irq/125-lan11:40:190
5862991917,1cyclictest60250irq/125-lan12:08:090
5862991917,1cyclictest60250irq/125-lan10:29:430
5862991818,0cyclictest60250irq/125-lan12:29:270
5862991818,0cyclictest60250irq/125-lan11:48:370
5862991818,0cyclictest60250irq/125-lan11:39:410
5862991818,0cyclictest60250irq/125-lan11:22:250
5862991818,0cyclictest60250irq/125-lan11:16:230
5862991818,0cyclictest60250irq/125-lan10:57:100
5862991818,0cyclictest60250irq/125-lan10:22:240
5862991818,0cyclictest60250irq/125-lan10:10:310
5862991818,0cyclictest60250irq/125-lan09:45:000
5862991818,0cyclictest60250irq/125-lan09:35:090
5862991818,0cyclictest60250irq/125-lan09:18:430
5862991817,1cyclictest60250irq/125-lan12:37:340
5862991817,1cyclictest60250irq/125-lan12:10:210
5862991817,1cyclictest60250irq/125-lan11:30:120
5862991817,1cyclictest60250irq/125-lan11:08:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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