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2026-01-26 - 09:46
[ 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 Mon Jan 26, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
36556552950,1sleep73655656-21cat20:32:137
174532660,1sleep717455-21kthreadcore00:27:197
3486938995755,2cyclictest3925519-21kworker/u16:5+events_unbound00:22:165
3486938995755,2cyclictest3867811-21kworker/u16:0+events_unbound23:52:315
3486938995654,2cyclictest3925519-21kworker/u16:5+events_unbound00:27:155
348642225443,7sleep50-21swapper/519:03:425
3486939995350,2cyclictest4085450-21kworker/u16:1+events_unbound23:52:146
3486939995350,2cyclictest3925519-21kworker/u16:5+flush-8:023:17:156
348658525319,30sleep70-21swapper/719:06:017
3486939995149,2cyclictest3698864-21kworker/u16:1+flush-8:022:47:146
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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