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2026-01-26 - 22:24
[ 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 Jan 26, 2026 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
811030,0rcu_preempt3-21ksoftirqd/011:58:580
81970,0rcu_preempt3-21ksoftirqd/011:13:280
81960,0rcu_preempt3-21ksoftirqd/007:24:570
81940,0rcu_preempt3-21ksoftirqd/011:04:180
81910,0rcu_preempt3-21ksoftirqd/011:28:010
81800,0rcu_preempt0-21swapper/012:14:470
81750,0rcu_preempt3-21ksoftirqd/010:56:240
81750,0rcu_preempt3-21ksoftirqd/010:56:240
81750,0rcu_preempt3-21ksoftirqd/009:45:090
81730,0rcu_preempt3-21ksoftirqd/009:21:180
81720,0rcu_preempt11255-21ntpq08:00:110
81710,0rcu_preempt3-21ksoftirqd/010:25:270
81710,0rcu_preempt24590-1kworker/0:0H11:21:180
81700,0rcu_preempt3-21ksoftirqd/011:15:120
81700,0rcu_preempt3-21ksoftirqd/011:09:160
81700,0rcu_preempt3-21ksoftirqd/009:26:300
81700,0rcu_preempt3-21ksoftirqd/009:26:300
81700,0rcu_preempt14172-1kworker/0:0H12:09:580
2641099706,0cyclictest12483-1kworker/0:1H10:30:000
81690,0rcu_preempt3-21ksoftirqd/010:10:110
13250680,0irq/301-480200026109-21df_inode09:34:591
81650,0rcu_preempt54-21kswapd010:41:320
81650,0rcu_preempt3-21ksoftirqd/011:44:550
2641099651,0cyclictest19521-21ssh11:39:470
81640,0rcu_preempt3-21ksoftirqd/011:54:440
81640,0rcu_preempt14726-21grep08:10:140
81640,0rcu_preempt14726-21grep08:10:140
2641099647,0cyclictest4840-1kworker/0:1H10:54:030
81630,0rcu_preempt851-21rngd10:21:090
10050630,0irq/346-484840054-21kswapd012:13:031
2641099627,0cyclictest54-21kswapd009:17:190
2641099622,0cyclictest4131-21ssh12:29:550
2641099622,0cyclictest0-21swapper/007:35:070
26410996211,0cyclictest1062-21diskmemload12:36:180
10050620,0irq/346-484840026304-21ssh10:07:531
10050620,0irq/346-484840022945-1kworker/1:2H09:33:111
10050620,0irq/346-484840015213-1kworker/1:3H10:01:421
81610,0rcu_preempt3-21ksoftirqd/008:20:110
2641099612,0cyclictest18110-21apt-get09:59:560
2641099612,0cyclictest0-21swapper/012:04:380
2641099611,0cyclictest0-21swapper/009:10:130
10050610,0irq/346-48484009233-1kworker/1:1H12:03:331
10050610,0irq/346-48484001526-1kworker/1:3H12:28:301
10050610,0irq/346-484840010267-1kworker/1:1H09:54:111
2641099602,0cyclictest478-21ssh10:14:560
2641099602,0cyclictest30181-21latency_hist08:59:450
2641099601,0cyclictest8496-21dropbear09:50:010
2641099601,0cyclictest1062-21diskmemload10:04:570
10050600,0irq/346-484840054-21kswapd011:10:111
10050600,0irq/346-484840054-21kswapd009:47:171
10050600,0irq/346-484840030065-1kworker/1:3H10:15:461
81590,0rcu_preempt3-21ksoftirqd/010:45:010
81590,0rcu_preempt3-21ksoftirqd/010:38:530
2641099597,0cyclictest0-21swapper/008:50:010
2641099593,0cyclictest0-21swapper/008:59:540
26410995922,0cyclictest0-21swapper/007:50:120
26410995912,0cyclictest30311-21runrttasks07:20:080
2641099591,0cyclictest26126-21dropbear09:35:000
10050590,0irq/346-48484009758-1kworker/1:0H11:02:291
10050590,0irq/346-484840054-21kswapd010:47:141
10050590,0irq/346-48484002614-1kworker/1:1H10:21:451
10050590,0irq/346-484840024589-1kworker/1:1H11:26:241
10050590,0irq/346-484840011985-1kworker/1:1H11:47:141
81580,0rcu_preempt3-21ksoftirqd/007:18:440
2641099589,0cyclictest11943-21ssh12:04:560
2641099582,0cyclictest0-21swapper/008:39:550
2641099581,0cyclictest21030-21apt-get09:29:560
10050580,0irq/346-48484007045-1kworker/1:2H11:31:081
10050580,0irq/346-48484006993-1kworker/1:0H09:18:311
10050580,0irq/346-484840030065-1kworker/1:3H10:12:531
81570,0rcu_preempt3-21ksoftirqd/008:05:140
2641099578,0cyclictest13389-21ssh09:54:580
2641099576,0cyclictest0-21swapper/007:39:570
2641099572,0cyclictest0-21swapper/011:36:540
2641099571,0cyclictest26688-21ssh12:19:560
2641099571,0cyclictest0-21swapper/012:28:360
2641099571,0cyclictest0-21swapper/009:39:530
26410995710,0cyclictest17109-21latency_hist08:19:460
10050570,0irq/346-484840024589-1kworker/1:1H11:17:331
81560,0rcu_preempt3-21ksoftirqd/007:10:030
81560,0rcu_preempt19-21ksoftirqd/110:50:161
81560,0rcu_preempt19-21ksoftirqd/110:29:591
2641099568,0cyclictest10445-21tr07:59:440
2641099562,0cyclictest9872-21rm11:29:570
10050560,0irq/346-484840011985-1kworker/1:1H11:37:041
81550,0rcu_preempt19-21ksoftirqd/109:25:091
81550,0rcu_preempt19-21ksoftirqd/109:25:091
26410995513,0cyclictest0-21swapper/008:45:110
10050550,0irq/346-484840054-21kswapd010:55:391
10050550,0irq/346-484840054-21kswapd010:55:391
10050550,0irq/346-48484004286-1kworker/1:0H11:56:431
10050550,0irq/346-484840011985-1kworker/1:1H11:51:031
81540,0rcu_preempt3-21ksoftirqd/008:30:020
2641099541,0cyclictest29696-21ping07:44:580
10050540,0irq/346-484840054-21kswapd009:39:541
10050540,0irq/346-484840028969-1kworker/1:1H12:24:221
10050540,0irq/346-484840012484-1kworker/1:0H10:41:041
10050540,0irq/346-484840010267-1kworker/1:1H09:54:571
26410995313,0cyclictest22099-21munin-node0
26410995312,0cyclictest0-21swapper/009:04:570
10050530,0irq/346-48484001524-1kworker/1:2H12:36:021
9950520,0irq/345-484840017437-1kworker/1:2H10:35:351
2641099521,0cyclictest1591-21munin-node0
10050520,0irq/346-48484009233-1kworker/1:1H12:14:541
10050520,0irq/346-484840012484-1kworker/1:0H10:27:511
10050520,0irq/346-484840011985-1kworker/1:1H11:40:571
9950510,0irq/345-48484006877-1kworker/1:0H07:59:561
81510,0rcu_preempt3-21ksoftirqd/008:25:080
10050510,0irq/346-48484009233-1kworker/1:1H12:05:371
10050510,0irq/346-484840026409-21cyclictest11:21:441
10050500,0irq/346-484840019631-1kworker/1:2H11:06:511
2641099492,0cyclictest26474-21cat07:09:450
10050490,0irq/346-48484005894-21ssh12:30:551
10050490,0irq/346-484840054-21kswapd009:12:571
10050480,0irq/346-48484001706-1kworker/1:1H09:24:001
81460,0rcu_preempt19-21ksoftirqd/107:34:461
9950450,0irq/345-484840054-21kswapd007:59:451
81450,0rcu_preempt19-21ksoftirqd/108:59:451
81450,0rcu_preempt19-21ksoftirqd/107:30:121
81440,0rcu_preempt3877-21sendmail-msp07:39:551
81430,0rcu_preempt19-21ksoftirqd/108:25:131
81430,0rcu_preempt19-21ksoftirqd/107:25:141
10050430,0irq/346-484840054-21kswapd008:45:101
81420,0rcu_preempt28023-21taskset07:14:361
81420,0rcu_preempt19-21ksoftirqd/108:20:071
81420,0rcu_preempt19-21ksoftirqd/107:19:531
81410,0rcu_preempt19-21ksoftirqd/108:09:451
81410,0rcu_preempt19-21ksoftirqd/108:09:451
81400,0rcu_preempt19-21ksoftirqd/108:15:051
81390,0rcu_preempt19-21ksoftirqd/108:39:551
81390,0rcu_preempt19-21ksoftirqd/108:05:141
81380,0rcu_preempt19-21ksoftirqd/108:59:551
81380,0rcu_preempt19-21ksoftirqd/107:45:161
81370,0rcu_preempt19-21ksoftirqd/109:09:441
81370,0rcu_preempt19-21ksoftirqd/108:49:451
81370,0rcu_preempt19-21ksoftirqd/107:54:441
81370,0rcu_preempt19-21ksoftirqd/107:04:581
81360,0rcu_preempt19-21ksoftirqd/107:19:461
81340,0rcu_preempt19-21ksoftirqd/108:30:131
81330,0rcu_preempt19-21ksoftirqd/108:35:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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