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2026-03-04 - 01:25
[ 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 #a, slot #5

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 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackaslot5s.osadl.org (updated Tue Mar 03, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811120,0rcu_preempt3-21ksoftirqd/009:21:590
81990,0rcu_preempt3-21ksoftirqd/010:05:480
81970,0rcu_preempt3-21ksoftirqd/011:48:500
81950,0rcu_preempt3-21ksoftirqd/009:34:270
81940,0rcu_preempt3-21ksoftirqd/007:14:370
81850,0rcu_preempt3-21ksoftirqd/011:14:300
81810,0rcu_preempt3-21ksoftirqd/010:39:350
81770,0rcu_preempt3-21ksoftirqd/011:56:240
81770,0rcu_preempt3-21ksoftirqd/007:54:350
10050750,0irq/346-4848400181ktimersoftd/109:21:471
81740,0rcu_preempt54-21kswapd010:35:010
10050730,0irq/346-484840054-21kswapd010:06:401
81720,0rcu_preempt1528-1kworker/0:2H09:04:330
81720,0rcu_preempt1049-21avahi-daemon12:25:590
81710,0rcu_preempt3-21ksoftirqd/007:59:220
81700,0rcu_preempt3-21ksoftirqd/007:39:290
81680,0rcu_preempt3-21ksoftirqd/009:40:430
10050670,0irq/346-484840054-21kswapd009:15:310
9950650,0irq/345-4848400181ktimersoftd/109:48:511
81650,0rcu_preempt3-21ksoftirqd/010:14:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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