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2026-01-27 - 22:15
[ 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 12:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
342715699130128,2cyclictest3398028-21kworker/u16:1+flush-8:010:34:405
341766325644,8sleep50-21swapper/507:01:595
342676225521,30sleep70-21swapper/707:05:377
342684725040,7sleep60-21swapper/607:06:496
3427164994742,4cyclictest3931746-21latency_hist10:56:537
3427164994742,4cyclictest3931746-21latency_hist10:56:537
342665524636,7sleep40-21swapper/407:04:064
3427154994341,2cyclictest3536788-21kworker/u16:0+events_unbound08:02:234
3427164994240,1cyclictest4150676-21ssh12:25:037
3427154994240,2cyclictest3398028-21kworker/u16:1+events_unbound11:53:434
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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