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2026-09-14 - 04:24
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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 14, 2026 00:43:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2292799740,73cyclictest325-21hwrng21:33:163
22912991918,1cyclictest59550irq/125-lan23:05:250
22912991918,1cyclictest59550irq/125-lan00:13:420
22912991818,0cyclictest59550irq/125-lan23:33:220
22912991818,0cyclictest59550irq/125-lan23:27:450
22912991818,0cyclictest59550irq/125-lan21:59:320
22912991818,0cyclictest59550irq/125-lan21:30:580
22912991818,0cyclictest59550irq/125-lan00:20:130
22912991817,1cyclictest59550irq/125-lan23:55:100
22912991817,1cyclictest59550irq/125-lan23:37:120
22912991817,1cyclictest59550irq/125-lan22:47:470
22912991817,1cyclictest59550irq/125-lan22:35:140
22912991817,1cyclictest59550irq/125-lan22:14:510
22912991817,1cyclictest59550irq/125-lan21:45:120
22912991817,1cyclictest59550irq/125-lan21:15:490
22912991817,1cyclictest59550irq/125-lan21:15:490
22912991817,1cyclictest59550irq/125-lan00:40:000
22912991817,1cyclictest59550irq/125-lan00:15:090
22912991816,1cyclictest59550irq/125-lan22:31:210
22920991717,0cyclictest674-21snmpd23:03:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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