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2026-01-27 - 07:00
[ 290.152] (II) VESA: driver for VESA chipsets: vesa

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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 Tue Jan 27, 2026 00:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811170,0rcu_preempt19-21ksoftirqd/121:42:581
811020,0rcu_preempt3-21ksoftirqd/021:41:240
811000,0rcu_preempt3-21ksoftirqd/023:08:340
811000,0rcu_preempt3-21ksoftirqd/022:52:550
81980,0rcu_preempt3-21ksoftirqd/022:57:570
81960,0rcu_preempt31521-21ssh23:15:071
81940,0rcu_preempt3-21ksoftirqd/022:03:400
81940,0rcu_preempt19-21ksoftirqd/122:50:031
81830,0rcu_preempt54-21kswapd000:10:350
81830,0rcu_preempt54-21kswapd000:10:350
81740,0rcu_preempt3-21ksoftirqd/020:30:070
81740,0rcu_preempt19-21ksoftirqd/122:13:511
81730,0rcu_preempt3-21ksoftirqd/019:59:440
81730,0rcu_preempt3-21ksoftirqd/019:59:440
81730,0rcu_preempt19-21ksoftirqd/123:20:561
81730,0rcu_preempt19-21ksoftirqd/100:36:441
81720,0rcu_preempt19-21ksoftirqd/123:58:151
81720,0rcu_preempt19-21ksoftirqd/123:08:351
81710,0rcu_preempt19-21ksoftirqd/121:29:531
81700,0rcu_preempt3-21ksoftirqd/020:50:100
81680,0rcu_preempt19-21ksoftirqd/122:15:081
81680,0rcu_preempt19-21ksoftirqd/120:15:021
81680,0rcu_preempt1470-21runrttasks20:08:240
81670,0rcu_preempt3-21ksoftirqd/023:45:050
81670,0rcu_preempt16747-1kworker/0:3H21:25:060
81660,0rcu_preempt3-21ksoftirqd/023:32:550
81660,0rcu_preempt19-21ksoftirqd/121:20:061
81660,0rcu_preempt18822-21kworker/u4:000:00:430
81650,0rcu_preempt17300-1kworker/0:0H00:15:010
81640,0rcu_preempt19-21ksoftirqd/123:50:021
81640,0rcu_preempt19-21ksoftirqd/122:27:021
81630,0rcu_preempt19-21ksoftirqd/121:55:111
81630,0rcu_preempt19-21ksoftirqd/119:29:561
81620,0rcu_preempt3-21ksoftirqd/000:08:180
81620,0rcu_preempt19-21ksoftirqd/120:24:561
81600,0rcu_preempt19-21ksoftirqd/100:20:511
81590,0rcu_preempt3-21ksoftirqd/022:04:560
81590,0rcu_preempt19-21ksoftirqd/123:25:131
81590,0rcu_preempt19-21ksoftirqd/122:40:011
81580,0rcu_preempt19-21ksoftirqd/100:05:071
9950570,0irq/345-484840019-21ksoftirqd/123:01:131
9950570,0irq/345-4848400171rcuc/122:00:031
81570,0rcu_preempt19-21ksoftirqd/119:10:091
81560,0rcu_preempt19-21ksoftirqd/121:45:581
81560,0rcu_preempt19-21ksoftirqd/121:35:261
81560,0rcu_preempt19-21ksoftirqd/121:10:281
81560,0rcu_preempt16042-21dropbear20:05:011
81560,0rcu_preempt11795-21kworker/1:022:34:081
81550,0rcu_preempt19-21ksoftirqd/123:31:461
81550,0rcu_preempt19-21ksoftirqd/100:24:571
81550,0rcu_preempt10242-21ssh21:15:010
10050550,0irq/346-48484009652-21ssh21:14:440
81540,0rcu_preempt3-21ksoftirqd/023:34:540
81540,0rcu_preempt3-21ksoftirqd/022:28:000
81540,0rcu_preempt3-21ksoftirqd/022:09:550
81540,0rcu_preempt3-21ksoftirqd/021:30:110
9950530,0irq/345-484840019-21ksoftirqd/121:27:131
81530,0rcu_preempt3-21ksoftirqd/023:10:000
81530,0rcu_preempt3-21ksoftirqd/000:34:560
81530,0rcu_preempt19-21ksoftirqd/122:05:071
10050530,0irq/346-484840011708-21munin-run00:34:430
9950520,0irq/345-4848400181ktimersoftd/100:02:111
9950520,0irq/345-4848400171rcuc/121:49:441
81520,0rcu_preempt3-21ksoftirqd/022:15:110
81520,0rcu_preempt3-21ksoftirqd/020:55:010
81520,0rcu_preempt27920-21kworker/0:123:15:050
81520,0rcu_preempt27385-21munin-node0
81520,0rcu_preempt19413-21kworker/0:200:21:220
81520,0rcu_preempt19-21ksoftirqd/122:45:101
81520,0rcu_preempt19-21ksoftirqd/120:19:451
81520,0rcu_preempt19-21ksoftirqd/119:59:551
10050520,0irq/346-48484002495-1kworker/0:2H23:53:250
10050520,0irq/346-484840010756-21cron19:49:440
81510,0rcu_preempt3-21ksoftirqd/022:47:550
81510,0rcu_preempt19-21ksoftirqd/122:35:171
81510,0rcu_preempt19-21ksoftirqd/100:29:541
81510,0rcu_preempt19015-21kworker/0:222:33:570
9950500,0irq/345-48484008238-1kworker/0:0H23:04:060
9950500,0irq/345-4848400181ktimersoftd/100:14:021
9950500,0irq/345-4848400181ktimersoftd/100:14:021
9950500,0irq/345-4848400171rcuc/122:21:081
81500,0rcu_preempt3-21ksoftirqd/021:44:550
81500,0rcu_preempt19-21ksoftirqd/123:40:111
81490,0rcu_preempt3-21ksoftirqd/023:40:040
81490,0rcu_preempt3-21ksoftirqd/022:22:490
81490,0rcu_preempt3-21ksoftirqd/021:37:410
81490,0rcu_preempt3-21ksoftirqd/020:45:030
81490,0rcu_preempt3-21ksoftirqd/019:18:590
81490,0rcu_preempt3-21ksoftirqd/019:10:020
81490,0rcu_preempt1470-21runrttasks20:09:580
81490,0rcu_preempt13808-21ping20:25:080
187322490,0sleep013921-1kworker/0:3H21:56:010
81480,0rcu_preempt4716-21diskmemload23:45:001
81480,0rcu_preempt3-21ksoftirqd/020:20:350
81480,0rcu_preempt3-21ksoftirqd/000:25:040
81480,0rcu_preempt15079-21df_abs21:19:590
81470,0rcu_preempt8770-21kworker/0:122:39:030
81470,0rcu_preempt851-21rngd21:15:051
81470,0rcu_preempt3-21ksoftirqd/023:55:050
81470,0rcu_preempt3-21ksoftirqd/021:52:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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