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2026-02-23 - 15:56
[ 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 highest latencies:
System rackaslot5s.osadl.org (updated Mon Feb 23, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811350,0rcu_preempt19-21ksoftirqd/107:29:181
811350,0rcu_preempt19-21ksoftirqd/107:29:181
811340,0rcu_preempt54-21kswapd012:14:291
811340,0rcu_preempt19-21ksoftirqd/107:19:491
811270,0rcu_preempt21281-21ssh10:34:461
811270,0rcu_preempt19-21ksoftirqd/107:34:481
811190,0rcu_preempt19-21ksoftirqd/111:14:461
811190,0rcu_preempt19-21ksoftirqd/108:34:311
811150,0rcu_preempt54-21kswapd009:20:331
811150,0rcu_preempt19-21ksoftirqd/112:22:491
811130,0rcu_preempt3-21ksoftirqd/012:19:360
811130,0rcu_preempt19-21ksoftirqd/111:04:301
811100,0rcu_preempt19-21ksoftirqd/111:24:191
811070,0rcu_preempt3-21ksoftirqd/011:59:450
811060,0rcu_preempt19-21ksoftirqd/110:59:301
811060,0rcu_preempt19-21ksoftirqd/109:44:441
811050,0rcu_preempt19-21ksoftirqd/110:49:311
811040,0rcu_preempt3-21ksoftirqd/012:29:390
811040,0rcu_preempt3-21ksoftirqd/012:29:390
811040,0rcu_preempt19-21ksoftirqd/111:29:181
811020,0rcu_preempt3-21ksoftirqd/010:08:210
811010,0rcu_preempt19-21ksoftirqd/110:24:301
811010,0rcu_preempt19-21ksoftirqd/107:44:411
81990,0rcu_preempt19-21ksoftirqd/108:44:451
81960,0rcu_preempt717-21diskmemload11:54:481
81940,0rcu_preempt3-21ksoftirqd/007:49:180
81940,0rcu_preempt19-21ksoftirqd/110:47:021
81940,0rcu_preempt19-21ksoftirqd/109:59:461
81930,0rcu_preempt19-21ksoftirqd/112:29:451
81930,0rcu_preempt19-21ksoftirqd/112:29:451
81930,0rcu_preempt19-21ksoftirqd/109:24:371
81920,0rcu_preempt19-21ksoftirqd/110:09:451
81910,0rcu_preempt8206-21kworker/1:211:34:481
81910,0rcu_preempt19-21ksoftirqd/109:35:001
81900,0rcu_preempt3-21ksoftirqd/012:07:000
81900,0rcu_preempt19-21ksoftirqd/109:29:431
81900,0rcu_preempt19-21ksoftirqd/109:29:431
81900,0rcu_preempt19-21ksoftirqd/107:09:451
81900,0rcu_preempt19-21ksoftirqd/107:09:451
81890,0rcu_preempt3-21ksoftirqd/011:14:310
81890,0rcu_preempt19-21ksoftirqd/112:09:451
81890,0rcu_preempt19-21ksoftirqd/112:04:191
81880,0rcu_preempt19-21ksoftirqd/112:34:411
81880,0rcu_preempt19-21ksoftirqd/111:49:301
81880,0rcu_preempt19-21ksoftirqd/110:39:191
81860,0rcu_preempt3-21ksoftirqd/009:28:340
81860,0rcu_preempt19-21ksoftirqd/112:24:421
81860,0rcu_preempt19-21ksoftirqd/109:49:401
81860,0rcu_preempt19-21ksoftirqd/109:14:391
81850,0rcu_preempt3-21ksoftirqd/011:33:240
81850,0rcu_preempt3-21ksoftirqd/010:59:450
81850,0rcu_preempt3-21ksoftirqd/010:24:500
81850,0rcu_preempt19-21ksoftirqd/111:39:211
81850,0rcu_preempt19-21ksoftirqd/108:19:381
81830,0rcu_preempt19-21ksoftirqd/110:19:471
81830,0rcu_preempt19-21ksoftirqd/107:54:451
81820,0rcu_preempt19-21ksoftirqd/108:24:471
81820,0rcu_preempt19-21ksoftirqd/107:29:311
81810,0rcu_preempt19-21ksoftirqd/109:39:451
81810,0rcu_preempt19-21ksoftirqd/108:49:371
81800,0rcu_preempt3-21ksoftirqd/010:39:450
81800,0rcu_preempt19-21ksoftirqd/109:04:491
81790,0rcu_preempt3-21ksoftirqd/011:19:410
81790,0rcu_preempt3-21ksoftirqd/009:13:050
81780,0rcu_preempt3-21ksoftirqd/011:34:450
81780,0rcu_preempt3-21ksoftirqd/010:59:180
81780,0rcu_preempt3-21ksoftirqd/010:44:350
81780,0rcu_preempt3-21ksoftirqd/010:14:390
81770,0rcu_preempt3-21ksoftirqd/010:32:590
81770,0rcu_preempt19-21ksoftirqd/110:14:461
81760,0rcu_preempt3-21ksoftirqd/009:39:460
81760,0rcu_preempt19-21ksoftirqd/111:24:421
81760,0rcu_preempt19-21ksoftirqd/107:59:491
81740,0rcu_preempt6705-21sh09:14:410
81740,0rcu_preempt3-21ksoftirqd/012:34:380
81740,0rcu_preempt3-21ksoftirqd/012:09:460
81740,0rcu_preempt3-21ksoftirqd/009:44:470
81740,0rcu_preempt19-21ksoftirqd/111:59:351
81740,0rcu_preempt19-21ksoftirqd/109:09:471
81740,0rcu_preempt19-21ksoftirqd/108:14:191
81730,0rcu_preempt19-21ksoftirqd/110:29:451
81720,0rcu_preempt3-21ksoftirqd/009:38:290
81720,0rcu_preempt19-21ksoftirqd/111:12:341
81720,0rcu_preempt19-21ksoftirqd/110:54:411
81710,0rcu_preempt3-21ksoftirqd/011:12:130
81710,0rcu_preempt3-21ksoftirqd/010:19:380
81690,0rcu_preempt32683-21sed12:24:390
81690,0rcu_preempt19-21ksoftirqd/111:48:021
81680,0rcu_preempt3-21ksoftirqd/011:25:100
81680,0rcu_preempt3-21ksoftirqd/009:49:300
81680,0rcu_preempt29713-21kworker/0:107:43:440
81670,0rcu_preempt3-21ksoftirqd/011:39:300
81670,0rcu_preempt19-21ksoftirqd/108:04:511
81660,0rcu_preempt28379-21munin-node0
81660,0rcu_preempt19-21ksoftirqd/108:59:311
81650,0rcu_preempt19-21ksoftirqd/107:14:431
81640,0rcu_preempt3-21ksoftirqd/009:59:420
81630,0rcu_preempt19-21ksoftirqd/107:09:191
81620,0rcu_preempt3-21ksoftirqd/011:57:320
81620,0rcu_preempt3-21ksoftirqd/011:49:360
81620,0rcu_preempt3-21ksoftirqd/009:54:190
81620,0rcu_preempt19-21ksoftirqd/110:04:321
81610,0rcu_preempt3-21ksoftirqd/010:49:420
81610,0rcu_preempt3-21ksoftirqd/010:34:450
81610,0rcu_preempt3-21ksoftirqd/009:22:340
81600,0rcu_preempt3-21ksoftirqd/011:49:190
309322600,0chrt10050irq/346-484840007:23:420
16002600,0chrt10050irq/346-484840007:31:310
81590,0rcu_preempt3-21ksoftirqd/009:29:330
81590,0rcu_preempt3-21ksoftirqd/009:29:330
81580,0rcu_preempt3-21ksoftirqd/012:14:440
81580,0rcu_preempt3-21ksoftirqd/010:11:450
81580,0rcu_preempt19-21ksoftirqd/109:54:391
81570,0rcu_preempt9873-21ping07:59:340
81570,0rcu_preempt19-21ksoftirqd/108:29:381
81540,0rcu_preempt23270-21munin-run08:39:180
81540,0rcu_preempt19-21ksoftirqd/108:54:301
81520,0rcu_preempt3-21ksoftirqd/008:44:370
81510,0rcu_preempt3-21ksoftirqd/011:04:330
81510,0rcu_preempt3-21ksoftirqd/008:14:460
81500,0rcu_preempt3-21ksoftirqd/008:24:370
81500,0rcu_preempt19-21ksoftirqd/108:39:441
81500,0rcu_preempt19-21ksoftirqd/108:09:371
81470,0rcu_preempt3-21ksoftirqd/009:04:450
81470,0rcu_preempt3-21ksoftirqd/007:04:420
81460,0rcu_preempt19-21ksoftirqd/107:49:411
10050460,0irq/346-48484006958-21munin-node0
81450,0rcu_preempt3-21ksoftirqd/008:09:190
81450,0rcu_preempt19636-21kworker/0:208:59:330
81440,0rcu_preempt3-21ksoftirqd/008:54:420
81440,0rcu_preempt3-21ksoftirqd/008:39:350
81440,0rcu_preempt3-21ksoftirqd/008:19:440
81420,0rcu_preempt3-21ksoftirqd/008:29:410
2604999422,0cyclictest0-21swapper/008:09:220
81410,0rcu_preempt3-21ksoftirqd/007:58:320
9950400,0irq/345-484840029340-21ping07:34:360
81400,0rcu_preempt19-21ksoftirqd/107:39:361
81380,0rcu_preempt3-21ksoftirqd/008:49:320
81380,0rcu_preempt3-21ksoftirqd/007:27:360
81380,0rcu_preempt3-21ksoftirqd/007:27:360
10050370,0irq/346-48484000-21swapper/007:09:450
10050370,0irq/346-48484000-21swapper/007:09:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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