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2025-12-29 - 18:05
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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 Dec 29, 2025 12:43:44)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12299991818,0cyclictest59550irq/125-lan12:00:312
12299991818,0cyclictest59550irq/125-lan10:30:162
12299991818,0cyclictest59550irq/125-lan08:53:062
12299991817,1cyclictest59550irq/125-lan11:45:112
12299991716,1cyclictest59550irq/125-lan12:30:122
12299991716,1cyclictest59550irq/125-lan12:12:322
12299991716,1cyclictest59550irq/125-lan07:50:172
12299991716,1cyclictest59550irq/125-lan07:20:132
12299991616,0cyclictest59550irq/125-lan10:45:122
12299991616,0cyclictest59550irq/125-lan10:17:322
12299991616,0cyclictest59550irq/125-lan09:56:322
12299991616,0cyclictest59550irq/125-lan09:05:192
12299991616,0cyclictest59550irq/125-lan08:45:122
12299991616,0cyclictest59550irq/125-lan07:35:122
12299991616,0cyclictest59550irq/125-lan07:35:122
12299991615,1cyclictest59550irq/125-lan12:15:212
12299991615,1cyclictest59550irq/125-lan11:40:142
12299991615,1cyclictest59550irq/125-lan10:05:172
12294991616,0cyclictest674-21snmpd08:32:251
12303991515,0cyclictest325-21hwrng08:07:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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