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2026-01-27 - 09:52
[ 290.152] (II) VESA: driver for VESA chipsets: vesa
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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 10 highest latencies:
System rack0slot2.osadl.org (updated Tue Jan 27, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
637361996361,2cyclictest1030180-21kworker/u16:2+events_unbound22:22:135
63677325418,31sleep70-21swapper/719:02:477
63677325418,31sleep70-21swapper/719:02:477
637361995250,2cyclictest804946-21kworker/u16:4+flush-8:022:02:245
637365995048,2cyclictest589112-21kworker/u16:2+events_unbound20:47:126
637365995048,2cyclictest1343634-21kworker/u16:3+flush-8:000:27:246
637361995048,2cyclictest636767-21kworker/u16:0+flush-8:019:37:235
637365994947,2cyclictest921127-21kworker/u16:0+events_unbound21:37:246
637365994947,2cyclictest921127-21kworker/u16:0+events_unbound21:37:246
637365994947,2cyclictest1039037-21kworker/u16:5+events_unbound23:37:106
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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