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2024-07-27 - 07:21
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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 Jul 27, 2024 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12147992018,1cyclictest60250irq/125-lan22:34:300
12147991919,0cyclictest60250irq/125-lan22:25:470
12147991919,0cyclictest60250irq/125-lan21:53:350
12147991918,1cyclictest60250irq/125-lan23:59:210
12147991918,1cyclictest60250irq/125-lan23:50:160
12147991918,1cyclictest60250irq/125-lan23:44:530
12147991918,1cyclictest60250irq/125-lan23:38:390
12147991918,1cyclictest60250irq/125-lan23:31:440
12147991918,1cyclictest60250irq/125-lan23:04:160
12147991918,1cyclictest60250irq/125-lan22:20:120
12147991918,1cyclictest60250irq/125-lan22:15:170
12147991918,1cyclictest60250irq/125-lan21:44:240
12147991918,1cyclictest60250irq/125-lan00:25:560
12147991917,1cyclictest60250irq/125-lan22:48:080
12147991818,0cyclictest60250irq/125-lan22:52:480
12147991818,0cyclictest60250irq/125-lan22:14:220
12147991818,0cyclictest60250irq/125-lan21:36:540
12147991818,0cyclictest60250irq/125-lan21:10:510
12147991818,0cyclictest60250irq/125-lan00:13:380
12147991818,0cyclictest60250irq/125-lan00:04:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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