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2026-01-20 - 12:52
[ 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 20, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
377656926641,7sleep50-21swapper/519:04:205
3777063995551,3cyclictest3925914-21kworker/u16:3+flush-8:020:27:244
377655925140,8sleep40-21swapper/419:04:114
3777073994742,4cyclictest4061598-21latency_hist21:27:237
3777073994236,5cyclictest3838934-21latency_hist19:37:247
3777063994139,2cyclictest3915896-21kworker/u16:1+flush-8:020:17:244
3777063994139,2cyclictest3915896-21kworker/u16:1+flush-8:020:17:244
377650524131,7sleep60-21swapper/619:03:256
3777069994038,2cyclictest12484-21kworker/u16:4+events_unbound22:27:466
3777065993937,2cyclictest4159321-21kworker/u16:3+events_unbound22:31:235
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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