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2025-05-03 - 02:12
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot2.osadl.org (updated Fri May 02, 2025 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5493492237209,18sleep30-21swapper/307:09:593
5490632230201,19sleep20-21swapper/207:06:162
5492192226198,18sleep10-21swapper/107:08:171
5492742222193,19sleep00-21swapper/007:09:000
54950199970,65cyclictest786863-21munin-update11:45:000
549508996348,11cyclictest632129-21ThreadPoolForeg08:45:003
549506995750,2cyclictest795435-21kworker/u8:3+flush-179:012:30:041
549501995348,3cyclictest795561-21latency_hist11:55:000
549507995249,2cyclictest0-21swapper/207:45:112
549507995249,2cyclictest0-21swapper/207:45:112
549501995148,2cyclictest795435-21kworker/u8:3+flush-179:012:10:050
549508995048,2cyclictest670129-21kworker/u8:3+events_unbound09:30:093
549506994541,3cyclictest743461-21kworker/u8:0+flush-179:011:05:091
549501994340,2cyclictest575052-21kworker/u8:1+flush-179:008:00:060
549507994230,6cyclictest674510-21kworker/2:0+pm10:00:002
549506994240,2cyclictest556122-21kworker/u8:3+flush-179:008:05:061
549506994237,3cyclictest730758-21latency_hist10:40:001
549501994239,2cyclictest648781-21kworker/u8:2+flush-179:010:00:050
549501994239,2cyclictest581907-21ThreadPoolSingl07:45:100
549501994239,2cyclictest581907-21ThreadPoolSingl07:45:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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