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2026-01-29 - 04:57
[ 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 100 highest latencies:
System rackaslot5s.osadl.org (updated Thu Jan 29, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81960,0rcu_preempt19-21ksoftirqd/123:34:561
81850,0rcu_preempt19-21ksoftirqd/121:20:041
81810,0rcu_preempt3-21ksoftirqd/022:45:020
81810,0rcu_preempt3-21ksoftirqd/022:24:420
81810,0rcu_preempt19-21ksoftirqd/122:59:481
81790,0rcu_preempt3-21ksoftirqd/022:15:080
81790,0rcu_preempt27041-21kworker/u4:021:20:020
81790,0rcu_preempt19071-21kworker/0:000:25:480
81780,0rcu_preempt3-21ksoftirqd/023:35:020
81780,0rcu_preempt3-21ksoftirqd/020:25:420
81780,0rcu_preempt3-21ksoftirqd/020:15:220
81780,0rcu_preempt21432-21kworker/0:123:52:370
81780,0rcu_preempt19071-21kworker/0:000:20:410
81770,0rcu_preempt3-21ksoftirqd/000:09:200
81770,0rcu_preempt31726-21kworker/0:023:00:520
81770,0rcu_preempt11336-1kworker/dying00:31:120
81760,0rcu_preempt3-21ksoftirqd/022:12:390
81760,0rcu_preempt3-21ksoftirqd/020:00:050
81760,0rcu_preempt25177-21diskmemload22:24:490
81750,0rcu_preempt6654-21kworker/0:222:05:070
81750,0rcu_preempt3-21ksoftirqd/023:54:580
81750,0rcu_preempt27216-21kworker/0:123:24:200
81750,0rcu_preempt10508-21kworker/0:221:43:210
81750,0rcu_preempt10508-21kworker/0:221:43:210
81750,0rcu_preempt10474-21kworker/0:023:40:290
81740,0rcu_preempt8570-21kworker/0:100:11:300
81740,0rcu_preempt3-21ksoftirqd/021:47:330
81740,0rcu_preempt3-21ksoftirqd/021:25:020
81740,0rcu_preempt3-21ksoftirqd/020:57:140
81740,0rcu_preempt3-21ksoftirqd/020:37:140
81740,0rcu_preempt3-21ksoftirqd/020:24:420
81740,0rcu_preempt3-21ksoftirqd/019:13:110
81740,0rcu_preempt27216-21kworker/0:123:34:270
81740,0rcu_preempt25177-21diskmemload21:16:220
81740,0rcu_preempt25177-21diskmemload21:13:030
81740,0rcu_preempt1914-21ping19:59:420
81740,0rcu_preempt13428-21kworker/0:123:12:040
81740,0rcu_preempt10007-1kworker/0:3H21:59:430
81740,0rcu_preempt0-21swapper/000:02:230
81730,0rcu_preempt3-21ksoftirqd/022:30:040
81730,0rcu_preempt3-21ksoftirqd/021:55:400
81730,0rcu_preempt3-21ksoftirqd/021:35:040
81730,0rcu_preempt3-21ksoftirqd/021:35:040
81730,0rcu_preempt3-21ksoftirqd/021:07:300
81730,0rcu_preempt3-21ksoftirqd/020:47:400
81730,0rcu_preempt25177-21diskmemload23:19:160
81730,0rcu_preempt21351-21ping19:36:360
81730,0rcu_preempt21351-21ping19:36:360
81730,0rcu_preempt14679-21ssh21:30:510
81720,0rcu_preempt3-21ksoftirqd/023:49:430
81720,0rcu_preempt3-21ksoftirqd/022:50:060
81720,0rcu_preempt3-21ksoftirqd/022:34:590
81720,0rcu_preempt3-21ksoftirqd/021:49:580
81720,0rcu_preempt3-21ksoftirqd/020:31:200
81720,0rcu_preempt3-21ksoftirqd/019:50:250
81720,0rcu_preempt3-21ksoftirqd/000:37:000
81720,0rcu_preempt25177-21diskmemload23:06:180
81720,0rcu_preempt25177-21diskmemload22:58:150
81720,0rcu_preempt21934-21ssh22:44:270
81710,0rcu_preempt3-21ksoftirqd/021:01:390
81710,0rcu_preempt3-21ksoftirqd/020:10:430
81710,0rcu_preempt3-21ksoftirqd/020:05:330
81700,0rcu_preempt3-21ksoftirqd/020:41:010
81700,0rcu_preempt3-21ksoftirqd/019:31:590
81700,0rcu_preempt27216-21kworker/0:123:25:020
81700,0rcu_preempt25177-21diskmemload00:16:040
81700,0rcu_preempt21023-1kworker/1:1H19:19:431
81690,0rcu_preempt3-21ksoftirqd/020:50:000
81680,0rcu_preempt21351-21ping19:42:490
81670,0rcu_preempt3-21ksoftirqd/019:18:240
81670,0rcu_preempt22475-21unixbench_multi19:20:150
81670,0rcu_preempt22475-21unixbench_multi19:20:150
81670,0rcu_preempt21351-21ping19:46:570
81650,0rcu_preempt19-21ksoftirqd/123:24:541
81640,0rcu_preempt3-21ksoftirqd/019:25:000
81620,0rcu_preempt19-21ksoftirqd/100:15:071
81610,0rcu_preempt19-21ksoftirqd/123:05:041
10050590,0irq/346-484840054-21kswapd023:19:421
9950510,0irq/345-4848400370-1kworker/1:2H21:29:281
81510,0rcu_preempt19-21ksoftirqd/120:20:131
10050510,0irq/346-484840011699-1kworker/1:3H23:39:431
81500,0rcu_preempt19-21ksoftirqd/123:50:111
10050490,0irq/346-4848400319222sleep121:49:001
10050490,0irq/346-484840022898-21munin-node1
10050490,0irq/346-484840022898-21munin-node1
10050490,0irq/346-48484000-21swapper/100:20:071
9950480,0irq/345-484840029941-1kworker/1:2H22:52:091
9950480,0irq/345-484840010105-1kworker/1:1H22:32:511
10050480,0irq/346-484840022326-1kworker/1:0H23:19:531
9950470,0irq/345-48484001914-21ping20:06:311
81470,0rcu_preempt19-21ksoftirqd/123:54:591
81470,0rcu_preempt19-21ksoftirqd/119:05:071
10050470,0irq/346-484840054-21kswapd022:39:471
10050470,0irq/346-484840012432-1kworker/1:1H23:45:571
10050470,0irq/346-48484001007-21dropbear22:44:561
10050470,0irq/346-48484000-21swapper/119:59:531
9950460,0irq/345-48484006358-1kworker/1:2H00:07:561
10050460,0irq/346-48484002494-1kworker/1:1H22:57:551
10050460,0irq/346-484840022656-1kworker/1:2H22:19:501
9950440,0irq/345-484840028096-21apt-get19:39:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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