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2026-01-22 - 05:11
[ 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 Thu Jan 22, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2376876995451,2cyclictest2830371-21kworker/u16:2+events_unbound22:57:306
2376876995451,2cyclictest2830371-21kworker/u16:2+events_unbound22:57:306
237638025444,7sleep60-21swapper/619:04:076
2376876995249,2cyclictest2805479-21kworker/u16:1+events_unbound23:27:186
2376877995145,5cyclictest2457867-21latency_hist19:47:167
2376876994946,2cyclictest2659235-21kworker/u16:0+flush-8:021:42:306
2376876994745,2cyclictest2924760-21kworker/u16:0+events_unbound00:22:296
2376876994744,2cyclictest2743393-21kworker/u16:5+events_unbound22:52:316
237643224737,7sleep40-21swapper/419:04:534
31195282450,0sleep73119527-21rm00:35:357
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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