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2026-01-29 - 08:49
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #2

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 20 highest latencies:
System rack1slot2s.osadl.org (updated Thu Jan 29, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1355624342,0sleep20-21swapper/219:04:502
1328624334,0sleep30-21swapper/319:01:383
1341323828,0sleep10-21swapper/119:03:081
1360623524,0sleep00-21swapper/019:05:240
137019970,0cyclictest11532-21munin-node22:25:542
137019970,0cyclictest0-21swapper/200:22:532
4160,0ktimersoftd/00-21swapper/023:37:050
339960,0migration/327078-21sh22:13:583
339960,0migration/319400-21sh23:10:483
339960,0migration/319166-21sh21:48:083
339960,0migration/318247-21sh23:30:153
339960,0migration/316207-21munin-node23:45:583
339960,0migration/311051-21sh21:22:383
339960,0migration/310784-21sh22:03:043
29715060,0irq/26-eth0-rx-32474-21munin-node23:15:543
29715060,0irq/26-eth0-rx-32474-21munin-node23:15:543
29715060,0irq/26-eth0-rx-27638-21diskstats19:15:483
149960,0migration/09280-21sh23:22:290
149960,0migration/032281-21sh00:16:140
149960,0migration/025678-21munin-node22:10:570
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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