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2026-02-20 - 03:25
[ 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 #e, slot #4

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 792 highest latencies:
System rackeslot4s.osadl.org (updated Fri Feb 20, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2642361994137,3cyclictest2912758-21kworker/u8:2+flush-259:000:00:001
2642367994035,3cyclictest2642286-21latency_hist19:10:013
2642361993834,3cyclictest2875868-21kworker/u8:1+events_unbound23:15:201
2642361993834,3cyclictest2834450-21kworker/u8:2+events_unbound22:25:171
2642357993835,2cyclictest2750933-21kworker/u8:1+flush-259:020:55:000
2642363993723,5cyclictest2766474-21apt-get21:10:012
2642361993733,3cyclictest2819011-21kworker/u8:4+flush-259:022:50:211
2642361993733,3cyclictest2652373-21kworker/u8:0+events_unbound19:45:141
2642361993731,4cyclictest2928684-21base6423:45:001
2642361993632,3cyclictest2668099-21kworker/u8:2+flush-259:020:00:241
2642361993630,4cyclictest2673236-21latency_hist19:40:001
2642361993628,3cyclictest2819011-21kworker/u8:4+events_unbound00:00:231
2642361993532,2cyclictest2724759-21kworker/u8:0+flush-259:020:35:241
2642361993531,3cyclictest2787908-21kworker/u8:0+flush-259:021:50:241
2642361993531,3cyclictest2714473-21kworker/u8:2+flush-259:020:35:011
2642361993531,3cyclictest2578811-21kworker/u8:3+flush-259:019:55:121
2642361993431,2cyclictest2819011-21kworker/u8:4+flush-259:022:55:201
2642361993431,2cyclictest2735491-21kworker/u8:3+flush-259:021:15:251
2642361993431,2cyclictest2621968-21kworker/u8:2+events_unbound19:20:161
2642361993330,2cyclictest2912758-21kworker/u8:2+events_unbound23:50:241
2642361993329,3cyclictest2714473-21kworker/u8:2+flush-259:021:00:221
2642361993327,2cyclictest2819011-21kworker/u8:4+events_unbound22:15:131
2642361993229,2cyclictest2965337-21kworker/u8:2+events_unbound00:20:151
2642361993229,2cyclictest2834450-21kworker/u8:2+flush-259:022:35:251
2642361993229,2cyclictest2819011-21kworker/u8:4+flush-259:023:25:221
2642361993229,2cyclictest2819011-21kworker/u8:4+flush-259:000:10:241
2642361993229,2cyclictest2776855-21kworker/u8:2+flush-259:021:20:201
2642361993228,3cyclictest2954605-21kworker/u8:3+flush-259:000:15:181
2642361993228,3cyclictest2652373-21kworker/u8:0+flush-259:019:25:231
2642361993228,3cyclictest2621968-21kworker/u8:2+events_unbound19:10:231
2642361993128,2cyclictest2813660-21kworker/u8:3+flush-259:021:55:211
2642361993128,2cyclictest2787908-21kworker/u8:0+events_unbound21:40:131
2642361993128,2cyclictest2693873-21kworker/u8:1+flush-259:020:15:151
2642361993127,3cyclictest2819011-21kworker/u8:4+events_unbound23:20:151
2642361993127,3cyclictest2693873-21kworker/u8:1+flush-259:020:05:211
2642361993027,2cyclictest2735491-21kworker/u8:3+flush-259:020:45:211
2642361993026,3cyclictest2652373-21kworker/u8:0+events_unbound19:40:131
2642361993025,4cyclictest2787908-21kworker/u8:0+events_unbound22:00:181
2642361993025,4cyclictest2787908-21kworker/u8:0+events_unbound22:00:171
2642361993024,4cyclictest2652637-21latency_hist19:20:011
2642363992923,4cyclictest2949212-21latency_hist00:05:002
2642361992926,2cyclictest2975476-21kworker/u8:1+flush-259:000:35:261
2642361992926,2cyclictest2965337-21kworker/u8:2+flush-259:000:30:261
2642361992926,2cyclictest2912758-21kworker/u8:2+flush-259:023:40:151
2642361992926,2cyclictest2819011-21kworker/u8:4+events_unbound22:45:221
2642361992925,3cyclictest2819011-21kworker/u8:4+events_unbound23:05:011
2642361992925,3cyclictest2787908-21kworker/u8:0+events_unbound22:30:131
2642363992822,4cyclictest2668076-21latency_hist19:35:012
2642361992824,3cyclictest2949443-21kworker/u8:0+events_unbound00:05:141
2642361992824,3cyclictest2819011-21kworker/u8:4+events_unbound23:10:221
2642361992824,3cyclictest2750933-21kworker/u8:1+events_unbound21:30:161
2642361992824,3cyclictest2724759-21kworker/u8:0+events_unbound21:05:191
2642361992824,3cyclictest2652373-21kworker/u8:0+events_unbound19:30:211
2642361992821,2cyclictest2735491-21kworker/u8:3+events_unbound20:55:231
2642367992718,8cyclictest2652373-21kworker/u8:0+flush-259:019:25:003
2642361992724,2cyclictest2875868-21kworker/u8:1+flush-259:023:30:241
2642361992724,2cyclictest2714473-21kworker/u8:2+events_unbound20:25:161
2642361992724,2cyclictest2578811-21kworker/u8:3+flush-259:019:50:241
2642361992724,2cyclictest2578811-21kworker/u8:3+flush-259:019:50:231
2642361992723,3cyclictest2819011-21kworker/u8:4+events_unbound23:35:121
2642361992723,3cyclictest2776855-21kworker/u8:2+events_unbound21:35:141
2642361992720,3cyclictest2787908-21kworker/u8:0+events_unbound22:10:181
2642363992621,3cyclictest252-21systemd-journal21:52:152
2642363992619,5cyclictest252-21systemd-journal19:14:592
2642361992623,2cyclictest2834450-21kworker/u8:2+events_unbound22:40:121
2642361992623,2cyclictest2776855-21kworker/u8:2+flush-259:021:25:211
2642361992623,2cyclictest2578811-21kworker/u8:3+events_unbound20:20:231
2642361992622,3cyclictest2819011-21kworker/u8:4+events_unbound23:05:151
2642361992620,4cyclictest2843636-21ntpq22:20:211
2642367992522,2cyclictest2714473-21kworker/u8:2+flush-259:020:25:163
2642367992518,5cyclictest2808721-21/usr/sbin/munin21:50:153
2642361992522,2cyclictest2724759-21kworker/u8:0+flush-259:021:10:191
2642361992521,3cyclictest2787908-21kworker/u8:0+events_unbound21:45:171
2642357992519,5cyclictest2943190-21ntpq23:55:200
2642357992519,4cyclictest2829058-21latency_hist22:10:010
2642363992420,3cyclictest2834450-21kworker/u8:2+flush-259:022:25:152
2642361992421,2cyclictest2724759-21kworker/u8:0+events_unbound20:40:131
2642361992421,2cyclictest2578811-21kworker/u8:3+events_unbound20:12:161
2642361992420,3cyclictest2954605-21kworker/u8:3+flush-259:000:25:201
264236399232,11cyclictest2704215-21cat20:10:002
2642363992319,3cyclictest252-21systemd-journal20:50:172
2642357992318,4cyclictest2819011-21kworker/u8:4+flush-259:023:00:200
2642357992317,4cyclictest252-21systemd-journal00:19:590
2642367992219,2cyclictest2652373-21kworker/u8:0+flush-259:019:25:173
2642361992219,2cyclictest2819011-21kworker/u8:4+flush-259:022:10:001
2642357992216,4cyclictest2725359-21cp20:30:020
264236799215,10cyclictest2771742-21taskset21:12:003
2642367992118,2cyclictest507-21in:imuxsock20:25:003
2642367992117,3cyclictest252-21systemd-journal20:15:153
2642363992116,3cyclictest252-21systemd-journal23:54:162
264236799206,4cyclictest2871928-21irqstats22:50:163
264236799204,11cyclictest2880800-21taskset22:57:543
2642363992017,2cyclictest2720297-21irqcore20:25:152
2642363992016,3cyclictest2819011-21kworker/u8:4+events_unbound23:00:002
2642363992015,3cyclictest2964799-21gpgv00:20:002
2642357992017,2cyclictest2750933-21kworker/u8:1+flush-259:021:05:010
2642357992016,3cyclictest2776855-21kworker/u8:2+flush-259:021:27:440
2642357992014,4cyclictest2953518-21ntpq00:05:210
264236799195,5cyclictest2860392-21taskset22:39:433
264236799195,5cyclictest2760913-21chrt21:00:423
264236799195,4cyclictest2750522-21taskset20:50:263
264236799194,9cyclictest2923242-21taskset23:40:053
2642367991915,3cyclictest2693000-21ntpq19:55:223
2642363991914,3cyclictest2985788-21latency_hist00:40:012
2642357991915,3cyclictest2964683-21apt-get00:20:020
2642357991915,3cyclictest2652373-21kworker/u8:0+flush-259:019:35:170
264236799186,9cyclictest2870689-21latency_hist22:50:013
264236799185,5cyclictest2938767-21taskset23:53:363
264236799185,5cyclictest2808330-21taskset21:48:173
264236799184,8cyclictest2922775-21taskset23:37:213
264236799184,5cyclictest2970263-21chrt00:24:343
264236799184,5cyclictest2828853-21chrt22:07:383
264236799184,5cyclictest2766129-21chrt21:06:083
264236799184,5cyclictest2647282-21taskset19:12:293
264236799184,10cyclictest2787691-21taskset21:27:453
264236799184,10cyclictest2730144-21taskset20:33:083
2642367991815,2cyclictest2834207-21idleruntime-cro22:15:003
2642367991814,3cyclictest2709304-21awk20:15:013
2642367991814,3cyclictest252-21systemd-journal23:00:163
2642363991815,2cyclictest2798189-21sh21:39:592
2642363991814,3cyclictest2782279-21apt-get21:25:002
2642361991815,2cyclictest2735491-21kworker/u8:3+events_unbound20:50:231
2642357991814,3cyclictest252-21systemd-journal22:26:170
264236799176,3cyclictest2959331-21taskset00:12:233
264236799175,3cyclictest2964369-21runrttasks00:16:253
264236799173,5cyclictest832-21runrttasks21:41:403
2642367991715,1cyclictest2839414-21munin-run22:19:593
2642367991714,2cyclictest2714473-21kworker/u8:2+flush-259:021:00:013
264236399172,4cyclictest513-21gdbus21:35:002
2642363991715,1cyclictest2798867-21irqcore21:40:152
2642363991714,2cyclictest2949570-21cpuspeed_turbos00:05:132
2642363991713,3cyclictest2897512-21apt-get23:15:132
2642363991712,3cyclictest252-21systemd-journal20:49:162
2642357991715,1cyclictest0-21swapper/020:10:180
2642357991712,4cyclictest2979669-21ntpq00:30:210
2642357991712,4cyclictest2897672-21diskstats23:15:150
2642357991712,4cyclictest2896941-21gpgv23:15:010
2642357991712,2cyclictest60350irq/132-enp0s29f1:rx-020:25:140
2642357991711,4cyclictest2958761-21nvmesmart_nvme000:10:220
2642357991711,4cyclictest2807644-21ntpq21:45:210
264236799169,5cyclictest2668081-21dump-pmu-power19:34:593
264236799166,6cyclictest2980527-21chrt00:34:163
264236799165,7cyclictest2844404-21taskset22:23:443
264236799165,7cyclictest2698800-21runrttasks20:02:333
264236799165,3cyclictest2678222-21taskset19:42:593
264236799164,8cyclictest2985380-21seq00:35:253
264236799164,5cyclictest2740358-21taskset20:42:083
264236799163,3cyclictest2896010-21ntp_states23:10:223
2642367991613,2cyclictest2782527-21store21:25:013
2642367991612,3cyclictest2912974-21/usr/sbin/munin23:30:213
264236399162,4cyclictest2843641-21ld22:20:212
2642363991614,1cyclictest2679087-21irqcore19:45:162
2642363991614,1cyclictest0-21swapper/220:15:012
2642363991613,2cyclictest2897122-21latency_hist23:15:002
2642363991613,2cyclictest2834450-21kworker/u8:2+flush-259:022:35:292
2642363991613,2cyclictest2767580-21irqcore21:10:162
2642363991612,2cyclictest0-21swapper/222:50:002
2642357991613,2cyclictest60350irq/132-enp0s29f1:rx-022:15:160
2642357991613,2cyclictest60350irq/132-enp0s29f1:rx-019:40:210
2642357991613,2cyclictest2668099-21kworker/u8:2+flush-259:019:50:160
2642357991613,2cyclictest2668099-21kworker/u8:2+flush-259:019:50:150
2642357991613,2cyclictest0-21swapper/000:40:000
2642357991612,3cyclictest509-21rs:main0
2642357991612,3cyclictest2678637-21/usr/sbin/munin19:45:180
2642357991612,3cyclictest252-21systemd-journal23:29:560
2642357991611,4cyclictest2844710-21apt-key22:25:010
2642357991611,4cyclictest2740614-21latency_hist20:45:000
264236799159,4cyclictest2901458-21head23:15:203
264236799158,4cyclictest2668601-21cut19:35:163
264236799156,5cyclictest2975272-21taskset00:27:573
264236799155,5cyclictest2699239-21taskset20:05:033
264236799155,3cyclictest2798040-21taskset21:38:243
264236799155,3cyclictest2776843-21taskset21:16:583
264236799155,1cyclictest2906668-21ntp_23:20:193
264236799154,3cyclictest2954231-21chrt00:08:233
264236799154,3cyclictest2854929-21taskset22:31:003
2642367991512,2cyclictest2971-21cron19:55:013
2642367991512,2cyclictest2971-21cron19:55:003
2642367991512,2cyclictest2943234-21ntp_offset23:55:213
2642367991511,2cyclictest2823953-21awk22:05:003
2642367991511,2cyclictest2823953-21awk22:04:593
2642367991510,3cyclictest2912729-21basename23:30:003
2642367991510,3cyclictest2891702-21awk23:10:013
2642363991513,1cyclictest0-21swapper/222:20:002
2642363991512,2cyclictest509-21rs:main2
264236399150,4cyclictest2656951-21ntpq19:20:212
2642357991513,1cyclictest60350irq/132-enp0s29f1:rx-023:50:160
2642357991513,1cyclictest60350irq/132-enp0s29f1:rx-023:20:210
2642357991513,1cyclictest60350irq/132-enp0s29f1:rx-022:04:530
2642357991513,1cyclictest60350irq/132-enp0s29f1:rx-022:04:520
2642357991513,1cyclictest60350irq/132-enp0s29f1:rx-021:50:140
2642357991513,1cyclictest60350irq/132-enp0s29f1:rx-021:15:170
2642357991512,2cyclictest61150irq/133-enp0s29f1:tx-023:40:130
2642357991512,2cyclictest60350irq/132-enp0s29f1:rx-020:15:170
2642357991511,3cyclictest2782305-21gpgv21:24:590
2642357991510,4cyclictest2692923-21/usr/sbin/munin19:55:190
2642357991510,3cyclictest2855831-21/usr/sbin/munin22:35:150
264236799149,3cyclictest2949219-21turbostat.cron00:05:003
264236799149,3cyclictest2849198-21gcc22:25:203
264236799149,3cyclictest2648176-21sort19:15:163
264236799149,3cyclictest252-21systemd-journal20:40:013
264236799148,4cyclictest2928979-21tr23:45:143
264236799148,4cyclictest2745286-21tail20:45:253
264236799148,4cyclictest2683089-21tail19:45:243
264236799147,4cyclictest2818974-21latency_hist22:00:003
264236799143,3cyclictest832-21runrttasks22:42:393
264236399145,1cyclictest191rcu_preempt23:20:122
264236399145,1cyclictest191rcu_preempt20:03:142
264236399141,7cyclictest2689134-21diskstats19:55:142
264236399141,4cyclictest2735459-21munin-run20:40:012
2642363991412,1cyclictest2959564-21dump-pmu-power00:15:002
2642363991411,2cyclictest2975890-21fschecks_count00:30:152
2642363991411,2cyclictest2923495-21fschecks_time23:40:132
2642363991411,2cyclictest2729894-21unixbench_singl20:30:252
264235799149,4cyclictest2817850-21/usr/sbin/munin21:55:200
264235799148,4cyclictest2949235-21/usr/sbin/munin00:05:000
264235799148,4cyclictest2865920-21expr22:45:130
2642357991413,1cyclictest60350irq/132-enp0s29f1:rx-022:51:250
2642357991413,1cyclictest60350irq/132-enp0s29f1:rx-021:05:260
2642357991413,1cyclictest60350irq/132-enp0s29f1:rx-019:21:530
2642357991412,2cyclictest61150irq/133-enp0s29f1:tx-022:30:250
2642357991412,1cyclictest60350irq/132-enp0s29f1:rx-022:55:160
2642357991412,1cyclictest60350irq/132-enp0s29f1:rx-022:11:590
2642357991412,1cyclictest60350irq/132-enp0s29f1:rx-021:13:110
2642357991412,1cyclictest60350irq/132-enp0s29f1:rx-020:05:250
2642357991412,1cyclictest60350irq/132-enp0s29f1:rx-019:10:230
2642357991412,1cyclictest0-21swapper/020:00:160
2642357991411,2cyclictest60350irq/132-enp0s29f1:rx-019:25:170
2642357991410,3cyclictest2788147-21apt-get21:30:120
2642357991410,3cyclictest2741162-21/usr/sbin/munin20:45:160
264235799140,5cyclictest2798412-21taskset21:40:050
264235799140,12cyclictest2933028-21ps23:45:250
264236799137,4cyclictest2788230-21grep21:30:133
264236399136,5cyclictest2875836-21basename22:55:012
264236399136,5cyclictest2714419-21idleruntime-cro20:20:002
264236399136,4cyclictest2783108-21tr21:25:122
264236399131,4cyclictest2890825-21ntpq23:05:222
2642363991311,1cyclictest2944071-21idleruntime-cro00:00:002
2642363991311,1cyclictest0-21swapper/221:15:182
2642363991310,2cyclictest2658517-21irqcore19:25:162
264235799139,3cyclictest2730973-21/usr/sbin/munin20:35:160
264235799138,4cyclictest2716993-21kthreadcore20:20:190
2642357991312,1cyclictest60350irq/132-enp0s29f1:rx-023:08:480
2642357991311,1cyclictest60350irq/132-enp0s29f1:rx-021:39:160
2642357991311,1cyclictest60350irq/132-enp0s29f1:rx-020:55:170
2642357991311,1cyclictest60350irq/132-enp0s29f1:rx-019:30:230
2642357991310,2cyclictest2918584-21irqcore23:35:160
264236399129,2cyclictest2970579-21apt-get00:25:122
264236399129,2cyclictest2919177-21kthreadcore23:35:172
264236399127,3cyclictest2917882-21cron23:35:002
264236399127,3cyclictest252-21systemd-journal22:44:592
264236399126,4cyclictest509-21rs:main2
264236399126,4cyclictest2808475-21basename21:50:002
264236399126,4cyclictest2756768-21tail21:00:162
264236399125,4cyclictest2820067-21grep22:00:182
264236399125,4cyclictest2820067-21grep22:00:172
264236399124,4cyclictest2828412-21xargs22:05:242
264236399121,2cyclictest2673659-21diskstats19:40:122
2642363991210,1cyclictest2910153-21tr23:25:182
264235799127,4cyclictest2915321-21kthreadcore23:30:190
264236399116,3cyclictest2829448-21cpuspeed_turbos22:10:142
264236399116,1cyclictest191rcu_preempt23:00:152
264236399114,5cyclictest2965628-21perl00:20:142
264236399111,5cyclictest41-21ksoftirqd/219:50:142
264236399111,5cyclictest41-21ksoftirqd/219:50:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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