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2026-02-21 - 17:44
[ 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 #9, slot #4

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 rack9slot4s (updated Sat Feb 21, 2026 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7529912511217,18cyclictest0-21swapper/007:26:460
7539911091100,6cyclictest0-21swapper/107:26:501
3022565519,31sleep10-21swapper/107:20:561
327632562517,30sleep00-21swapper/007:20:500
310712760,4sleep041ktimersoftd/011:12:140
101332570,5sleep110121-21ssh12:30:291
306422500,3sleep0111rcuc/011:45:200
255222460,7sleep175399cyclictest12:13:561
752994525,5cyclictest3-21ksoftirqd/012:40:360
752994424,8cyclictest3-21ksoftirqd/012:00:300
194712440,5sleep1211ktimersoftd/112:07:101
75299439,30cyclictest0-21swapper/010:15:160
752994324,9cyclictest3-21ksoftirqd/009:39:490
752994323,9cyclictest3-21ksoftirqd/010:20:190
75399416,4cyclictest81rcu_preempt11:13:321
752994126,5cyclictest3-21ksoftirqd/009:50:210
752994124,5cyclictest3-21ksoftirqd/010:02:370
752994123,5cyclictest3-21ksoftirqd/012:06:570
752994121,8cyclictest3-21ksoftirqd/010:06:340
112072410,2sleep00-21swapper/007:50:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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