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2026-02-18 - 11:07
[ 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 all highest latencies:
System rackeslot4s.osadl.org (updated Wed Feb 18, 2026 00:44:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
453302993836,1cyclictest478993-21kworker/u8:2+flush-259:019:35:213
453295993530,3cyclictest738989-21kworker/u8:0+flush-259:023:45:161
453295993427,5cyclictest587743-21ntpq21:15:211
453302993328,3cyclictest567749-21/usr/sbin/munin21:00:163
453295993329,3cyclictest640589-21kworker/u8:2+flush-259:023:15:141
453298993125,4cyclictest567085-21apt-get21:00:012
453298993025,4cyclictest593971-21kworker/u8:3+flush-259:021:30:252
453295993025,3cyclictest593971-21kworker/u8:3+flush-259:021:55:231
453295993024,4cyclictest728584-21/usr/sbin/munin23:35:141
453292993024,4cyclictest796437-21latency_hist00:40:000
453298992925,3cyclictest640589-21kworker/u8:2+flush-259:022:40:252
453295992926,2cyclictest676742-21kworker/u8:3+flush-259:023:50:131
453295992926,2cyclictest640589-21kworker/u8:2+events_unbound22:45:001
453298992825,2cyclictest598952-21gpgv21:30:012
453295992825,2cyclictest468735-21kworker/u8:0+flush-259:019:40:221
453295992721,4cyclictest770808-21/usr/sbin/munin00:15:231
453302992623,2cyclictest625120-21idleruntime-cro21:55:013
453298992622,3cyclictest640589-21kworker/u8:2+flush-259:023:25:162
453298992622,3cyclictest437990-21kworker/u8:3+flush-259:019:25:272
453298992621,3cyclictest706499-21ntpq23:10:212
453298992620,4cyclictest615054-21/usr/sbin/munin21:45:142
453295992622,3cyclictest494432-21kworker/u8:0+flush-259:019:55:011
453292992620,4cyclictest252-21systemd-journal23:35:010
453302992521,3cyclictest252-21systemd-journal23:25:003
453298992521,3cyclictest556827-21kworker/u8:0+flush-259:021:20:012
453295992521,3cyclictest640589-21kworker/u8:2+flush-259:000:30:221
453295992520,3cyclictest734107-21base6423:40:011
453292992521,3cyclictest520335-21cat20:15:000
453302992420,3cyclictest468735-21kworker/u8:0+flush-259:019:40:173
453302992420,2cyclictest728295-21base6423:35:013
453295992420,3cyclictest640589-21kworker/u8:2+flush-259:023:25:231
453295992420,3cyclictest420655-21kworker/u8:0+events_unbound19:15:141
453292992420,3cyclictest676742-21kworker/u8:3+events_unbound23:25:170
453292992418,5cyclictest252-21systemd-journal22:35:000
453302992318,3cyclictest531220-21/usr/sbin/munin20:25:253
453298992319,3cyclictest754921-21apt-get00:00:122
453295992320,2cyclictest619993-21kworker/u8:1+events_unbound22:05:211
453295992319,3cyclictest640589-21kworker/u8:2+events_unbound00:05:181
453295992319,3cyclictest593971-21kworker/u8:3+flush-259:021:50:151
453292992319,3cyclictest619993-21kworker/u8:1+events_unbound22:00:250
453302992218,3cyclictest509-21rs:main3
453295992219,2cyclictest619993-21kworker/u8:1+events_unbound23:00:231
453295992219,2cyclictest619993-21kworker/u8:1+events_unbound23:00:231
453295992218,3cyclictest520208-21kworker/u8:2+flush-259:020:40:181
453295992215,3cyclictest619993-21kworker/u8:1+events_unbound22:05:011
453292992217,4cyclictest716713-21ntpq23:20:190
453292992217,3cyclictest509885-21latency_hist20:05:010
453292992215,5cyclictest573228-21cat21:05:010
453302992117,3cyclictest749462-21kworker/u8:1+flush-259:023:55:213
453302992117,3cyclictest556827-21kworker/u8:0+flush-259:021:05:263
453302992117,3cyclictest499811-21apt-get19:55:123
453298992116,3cyclictest520574-21cp20:15:012
453295992118,2cyclictest640589-21kworker/u8:2+flush-259:023:20:221
453295992118,2cyclictest640589-21kworker/u8:2+events_unbound22:30:151
453295992118,2cyclictest478993-21kworker/u8:2+events_unbound19:50:001
453295992117,2cyclictest604528-21kworker/u8:2+events_unbound21:45:231
453292992118,2cyclictest739093-21kworker/u8:5+events_unbound00:25:260
453292992118,2cyclictest676742-21kworker/u8:3+flush-259:000:20:170
453292992117,3cyclictest640589-21kworker/u8:2+flush-259:022:40:160
453302992017,2cyclictest681920-21apt-get22:50:123
453302992016,3cyclictest640589-21kworker/u8:2+events_unbound23:40:183
453298992016,3cyclictest489087-21kworker/u8:3+events_unbound20:00:232
453295992016,3cyclictest490-21dbus-daemon23:35:011
453295992015,3cyclictest791527-21apt-get00:35:121
453292992017,2cyclictest598953-21apt-key21:30:010
453302991913,4cyclictest775784-21latency_hist00:20:013
453298991916,2cyclictest463396-21kworker/u8:1+events_unbound19:20:202
453295991916,2cyclictest640589-21kworker/u8:2+flush-259:000:00:201
453295991916,2cyclictest593971-21kworker/u8:3+events_unbound21:40:211
453295991916,2cyclictest437990-21kworker/u8:3+events_unbound19:25:231
453295991915,3cyclictest770449-21latency_hist00:15:011
453295991915,3cyclictest640589-21kworker/u8:2+flush-259:022:15:221
453295991915,3cyclictest619993-21kworker/u8:1+flush-259:022:25:231
453295991915,3cyclictest556827-21kworker/u8:0+flush-259:021:10:161
453295991915,3cyclictest520835-21kworker/u8:3+events_unbound20:20:231
453295991915,3cyclictest420655-21kworker/u8:0+events_unbound19:10:161
453295991914,3cyclictest640589-21kworker/u8:2+events_unbound22:45:241
453292991913,4cyclictest629341-21ntpq21:55:180
453302991816,1cyclictest515709-21irqcore20:10:173
453298991815,2cyclictest619993-21kworker/u8:1+events_unbound22:05:132
453298991815,2cyclictest556827-21kworker/u8:0+flush-259:021:05:132
453298991814,3cyclictest478993-21kworker/u8:2+flush-259:019:35:242
453295991815,2cyclictest520208-21kworker/u8:2+events_unbound20:45:151
453295991815,2cyclictest520208-21kworker/u8:2+events_unbound20:45:151
453295991814,3cyclictest593971-21kworker/u8:3+flush-259:021:35:001
453295991813,3cyclictest676742-21kworker/u8:3+events_unbound00:20:131
453295991813,3cyclictest252-21systemd-journal20:35:091
453295991812,3cyclictest520693-21base6420:15:011
453292991813,3cyclictest252-21systemd-journal19:35:080
453302991715,1cyclictest637956-21kthreadcore22:05:183
453302991715,1cyclictest619993-21kworker/u8:1+flush-259:022:10:213
453302991714,2cyclictest619993-21kworker/u8:1+flush-259:023:00:253
453302991714,2cyclictest619993-21kworker/u8:1+flush-259:023:00:253
453302991713,3cyclictest567735-21kworker/u8:1+events_unbound21:20:233
453302991713,3cyclictest520208-21kworker/u8:2+events_unbound20:55:213
453302991711,4cyclictest776019-21/usr/sbin/munin00:20:203
453302991711,4cyclictest509-21rs:main3
453302991711,4cyclictest252-21systemd-journal00:39:543
453298991714,2cyclictest776466-21irqcore00:20:172
453298991714,2cyclictest691924-21turbostat.cron23:00:002
453298991713,3cyclictest567735-21kworker/u8:1+events_unbound21:20:212
453298991713,3cyclictest556827-21kworker/u8:0+flush-259:021:10:252
453298991713,3cyclictest478993-21kworker/u8:2+flush-259:019:50:142
453295991714,2cyclictest640589-21kworker/u8:2+flush-259:022:20:201
453295991714,2cyclictest520208-21kworker/u8:2+flush-259:021:00:461
453295991714,2cyclictest468735-21kworker/u8:0+events_unbound19:30:171
453295991712,3cyclictest252-21systemd-journal20:08:091
453295991711,4cyclictest640790-21/usr/sbin/munin22:10:131
453292991715,1cyclictest588607-21latency_hist21:19:590
453292991714,2cyclictest676742-21kworker/u8:3+flush-259:022:50:150
453292991714,2cyclictest604508-21idleruntime-cro21:35:010
453292991714,2cyclictest60350irq/132-enp0s29f1:rx-020:50:240
453292991713,3cyclictest619993-21kworker/u8:1+flush-259:022:10:260
453292991711,4cyclictest252-21systemd-journal23:40:000
453302991612,3cyclictest640589-21kworker/u8:2+flush-259:000:00:133
453302991612,3cyclictest520208-21kworker/u8:2+flush-259:020:45:253
453302991612,3cyclictest520208-21kworker/u8:2+flush-259:020:45:243
453298991613,2cyclictest468735-21kworker/u8:0+flush-259:019:30:202
453298991612,3cyclictest520208-21kworker/u8:2+flush-259:020:15:202
453295991613,2cyclictest676742-21kworker/u8:3+events_unbound23:05:181
453295991613,2cyclictest676742-21kworker/u8:3+events_unbound23:05:181
453295991613,2cyclictest640589-21kworker/u8:2+flush-259:023:10:161
453295991613,2cyclictest520835-21kworker/u8:3+flush-259:020:30:161
453295991612,2cyclictest0-21swapper/120:54:591
45329299169,5cyclictest252-21systemd-journal22:50:000
453292991614,1cyclictest60350irq/132-enp0s29f1:rx-023:05:110
453292991614,1cyclictest60350irq/132-enp0s29f1:rx-023:05:100
453292991614,1cyclictest60350irq/132-enp0s29f1:rx-022:26:210
453292991614,1cyclictest60350irq/132-enp0s29f1:rx-021:45:150
453292991613,2cyclictest60350irq/132-enp0s29f1:rx-023:55:120
453292991613,2cyclictest60350irq/132-enp0s29f1:rx-021:20:160
453292991612,3cyclictest556827-21kworker/u8:0+flush-259:021:10:130
453292991612,3cyclictest520835-21kworker/u8:3+flush-259:020:20:160
453292991612,3cyclictest515015-21sh20:10:000
453292991611,3cyclictest473829-21latency_hist19:30:000
45330299159,5cyclictest514161-21ntpq20:05:203
453302991512,2cyclictest593971-21kworker/u8:3+events_unbound21:30:173
453302991512,2cyclictest478993-21kworker/u8:2+events_unbound19:45:243
453302991511,3cyclictest500-21systemd-logind00:10:013
453302991511,3cyclictest463396-21kworker/u8:1+flush-259:019:20:153
453302991510,4cyclictest666264-21latency_hist22:35:003
453302991510,4cyclictest640589-21kworker/u8:2+flush-259:022:25:173
453298991513,1cyclictest0-21swapper/222:15:002
453298991510,4cyclictest764975-21latency_hist00:10:012
453295991512,2cyclictest749462-21kworker/u8:1+events_unbound23:56:101
453295991512,2cyclictest640589-21kworker/u8:2+flush-259:022:55:161
453295991512,2cyclictest489087-21kworker/u8:3+flush-259:020:00:251
453295991512,2cyclictest478993-21kworker/u8:2+flush-259:019:35:161
453295991512,1cyclictest0-21swapper/119:25:011
453295991511,3cyclictest567735-21kworker/u8:1+events_unbound21:20:101
453295991511,3cyclictest520835-21kworker/u8:3+events_unbound20:25:131
453295991510,4cyclictest520208-21kworker/u8:2+events_unbound20:55:261
453292991513,2cyclictest61150irq/133-enp0s29f1:tx-019:55:160
453292991513,2cyclictest60350irq/132-enp0s29f1:rx-000:10:260
453292991513,1cyclictest60350irq/132-enp0s29f1:rx-022:55:140
453292991513,1cyclictest60350irq/132-enp0s29f1:rx-021:01:210
453292991512,2cyclictest61150irq/133-enp0s29f1:tx-020:56:080
453292991512,2cyclictest61150irq/133-enp0s29f1:tx-020:25:170
453292991512,2cyclictest60350irq/132-enp0s29f1:rx-023:00:130
453292991512,2cyclictest60350irq/132-enp0s29f1:rx-023:00:130
453292991512,2cyclictest60350irq/132-enp0s29f1:rx-020:40:190
453292991512,2cyclictest60350irq/132-enp0s29f1:rx-000:15:130
453292991512,2cyclictest60350irq/132-enp0s29f1:rx-000:00:200
453292991512,2cyclictest593971-21kworker/u8:3+flush-259:021:40:180
453292991511,3cyclictest640589-21kworker/u8:2+flush-259:000:30:140
45329299151,13cyclictest490-21dbus-daemon19:45:000
453292991510,3cyclictest556806-21awk20:50:000
453292991510,3cyclictest556806-21awk20:49:590
45330299149,4cyclictest676742-21kworker/u8:3+events_unbound00:10:253
45330299149,3cyclictest593971-21kworker/u8:3+flush-259:021:25:213
453302991411,2cyclictest640589-21kworker/u8:2+flush-259:022:19:593
453302991411,2cyclictest473818-21sh19:30:013
453302991411,1cyclictest0-21swapper/320:25:003
453302991410,3cyclictest676742-21kworker/u8:3+flush-259:023:25:133
453302991410,3cyclictest604528-21kworker/u8:2+flush-259:021:45:173
453302991410,3cyclictest593971-21kworker/u8:3+flush-259:021:55:183
453302991410,2cyclictest0-21swapper/321:40:193
45329899145,7cyclictest252-21systemd-journal21:55:012
453298991412,2cyclictest556827-21kworker/u8:0+flush-259:020:50:242
453298991411,2cyclictest702229-21idleruntime-cro23:10:002
453298991411,2cyclictest702229-21idleruntime-cro23:10:002
453298991411,2cyclictest697093-21cron23:05:002
453298991411,2cyclictest697093-21cron23:04:592
453298991411,2cyclictest593971-21kworker/u8:3+flush-259:022:15:142
453298991411,1cyclictest0-21swapper/200:10:162
45329599148,4cyclictest252-21systemd-journal00:26:081
45329599148,1cyclictest0-21swapper/122:54:591
453295991410,3cyclictest593971-21kworker/u8:3+flush-259:021:35:451
453295991410,3cyclictest463396-21kworker/u8:1+flush-259:020:10:091
453292991413,1cyclictest60350irq/132-enp0s29f1:rx-020:30:130
453292991413,1cyclictest60350irq/132-enp0s29f1:rx-019:51:330
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-023:45:230
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-023:10:160
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-022:22:570
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-022:05:180
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-021:35:190
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-020:16:190
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-019:45:170
453292991412,1cyclictest60350irq/132-enp0s29f1:rx-019:34:360
453292991411,2cyclictest60350irq/132-enp0s29f1:rx-022:15:150
453292991410,3cyclictest420655-21kworker/u8:0+flush-259:019:15:150
45330299139,3cyclictest605867-21kthreadcore21:35:163
45330299138,4cyclictest640589-21kworker/u8:2+flush-259:023:10:143
45330299135,1cyclictest0-21swapper/321:15:003
453302991311,1cyclictest0-21swapper/323:20:003
45329899139,3cyclictest640589-21kworker/u8:2+flush-259:022:20:182
453298991311,1cyclictest0-21swapper/223:35:002
453298991310,2cyclictest733818-21apt-key23:40:012
453298991310,2cyclictest541550-21kworker/u8:0+flush-259:020:35:152
453298991310,2cyclictest515018-21cron20:10:002
45329599139,3cyclictest594007-21apt-get21:25:111
45329599139,3cyclictest556827-21kworker/u8:0+events_unbound21:09:561
45329599131,1cyclictest671405-21munin-run22:40:001
45329599131,1cyclictest5021181kthreadcore19:55:181
453292991312,1cyclictest60350irq/132-enp0s29f1:rx-023:41:090
453292991311,1cyclictest60350irq/132-enp0s29f1:rx-023:51:340
453292991311,1cyclictest60350irq/132-enp0s29f1:rx-022:35:180
453292991310,2cyclictest60350irq/132-enp0s29f1:rx-019:10:210
453292991310,2cyclictest60350irq/132-enp0s29f1:rx-000:05:130
45330299129,2cyclictest557294-21fschecks_time20:50:153
45330299128,3cyclictest676742-21kworker/u8:3+flush-259:022:45:153
45330299128,3cyclictest630266-21kworker/u8:0+events_unbound22:00:203
45330299128,2cyclictest5208472sleep320:15:113
45330299127,3cyclictest640589-21kworker/u8:2+events_unbound22:40:173
45330299127,3cyclictest1-21systemd23:50:003
45330299125,5cyclictest671389-21awk22:40:003
45329899129,2cyclictest681985-21cpuspeed_turbos22:50:142
45329899129,2cyclictest640589-21kworker/u8:2+events_unbound23:20:132
45329899129,2cyclictest458774-21cpuspeed_turbos19:15:132
45329899128,3cyclictest619993-21kworker/u8:1+flush-259:022:25:232
45329899128,3cyclictest520835-21kworker/u8:3+flush-259:020:30:332
453292991211,1cyclictest60350irq/132-enp0s29f1:rx-021:50:560
453292991211,1cyclictest60350irq/132-enp0s29f1:rx-020:36:360
45330299117,3cyclictest640589-21kworker/u8:2+flush-259:022:20:143
45330299117,3cyclictest640589-21kworker/u8:2+flush-259:000:30:273
45330299117,2cyclictest0-21swapper/320:34:593
45329899119,1cyclictest0-21swapper/220:25:002
45329899118,2cyclictest640589-21kworker/u8:2+flush-259:023:15:192
45329899110,5cyclictest671387-21idleruntime-cro22:40:002
45329299119,1cyclictest60350irq/132-enp0s29f1:rx-023:18:070
45329299118,2cyclictest60350irq/132-enp0s29f1:rx-019:20:130
45330299107,2cyclictest453586-21cpuspeed_turbos19:10:143
45330299107,1cyclictest0-21swapper/320:35:163
45329899108,1cyclictest0-21swapper/220:25:242
45329899108,1cyclictest0-21swapper/219:55:172
45329899107,2cyclictest640589-21kworker/u8:2+flush-259:000:30:182
45329899100,9cyclictest786098-21systemd-run00:30:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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