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2026-01-15 - 17:43
[ 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 Thu Jan 15, 2026 12:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4069646994240,1cyclictest151002-21fwupd11:30:283
4069641994037,2cyclictest125349-21kworker/u8:4+flush-259:012:35:002
4069646993936,2cyclictest104598-21gpgv10:50:003
4069641993935,3cyclictest4162906-21kworker/u8:0+flush-259:009:10:002
4069638993731,4cyclictest4194119-21/usr/sbin/munin09:10:131
4069638993631,3cyclictest4085072-21kworker/u8:1+flush-259:007:34:591
4069636993531,3cyclictest156646-21kworker/u8:2+flush-259:011:45:190
4069641993430,3cyclictest4100504-21latency_hist07:40:002
4069638993428,4cyclictest252-21systemd-journal10:20:311
4069646993327,4cyclictest213790-21latency_hist12:35:003
4069636993327,4cyclictest115293-21latency_hist11:00:010
4069641993229,2cyclictest4059161-21kworker/u8:2+flush-259:008:20:012
4069641993229,2cyclictest4059161-21kworker/u8:2+flush-259:008:20:002
4069641993229,2cyclictest193128-21kworker/u8:1+flush-259:012:25:002
4069641993226,5cyclictest4178428-21latency_hist08:55:002
4069641993127,3cyclictest4162906-21kworker/u8:0+events_unbound09:20:132
4069636993123,6cyclictest41029-21ntpq09:45:200
4069646993027,2cyclictest4059161-21kworker/u8:2+flush-259:008:20:203
4069646993024,4cyclictest63019-21latency_hist10:10:013
4069641993027,2cyclictest94507-21kworker/u8:0+flush-259:011:15:002
4069636993024,4cyclictest182766-21latency_hist12:05:010
4069641992926,2cyclictest4095363-21kworker/u8:0+flush-259:008:10:002
4069638992924,3cyclictest172181-21gpgv11:55:011
406963699291,26cyclictest1-21systemd10:13:010
406963699290,27cyclictest1-21systemd11:09:000
4069646992825,2cyclictest4162906-21kworker/u8:0+events_unbound08:55:153
4069646992824,3cyclictest4162884-21latency_hist08:40:003
4069641992826,2cyclictest4152798-21kworker/u8:1+events_unbound09:40:142
4069641992825,2cyclictest125349-21kworker/u8:4+flush-259:011:30:212
4069641992824,3cyclictest4085072-21kworker/u8:1+events_unbound07:45:152
4069641992824,3cyclictest193128-21kworker/u8:1+events_unbound12:35:152
4069636992824,3cyclictest52273-21kworker/u8:0+flush-259:010:20:000
4069646992721,5cyclictest16042-21cat09:25:023
4069641992724,2cyclictest4085072-21kworker/u8:1+events_unbound07:50:072
4069638992720,5cyclictest15419-21latency_hist09:25:011
4069646992622,3cyclictest4131870-21kworker/u8:1+events_unbound08:10:133
4069646992622,3cyclictest4131870-21kworker/u8:1+events_unbound08:10:133
4069641992623,2cyclictest58062-21kworker/u8:4+flush-259:010:25:002
4069641992623,2cyclictest4173467-21kworker/u8:3+flush-259:009:05:002
4069641992623,2cyclictest125349-21kworker/u8:4+events_unbound11:55:142
4069641992621,3cyclictest252-21systemd-journal09:25:272
4069638992621,4cyclictest4152798-21kworker/u8:1+flush-259:008:35:241
4069638992621,3cyclictest252-21systemd-journal09:58:591
4069638992620,4cyclictest509-21rs:main1
4069636992622,3cyclictest4111413-21kworker/u8:4+flush-259:008:05:000
4069636992620,4cyclictest4152560-21latency_hist08:30:010
4069646992522,2cyclictest58062-21kworker/u8:4+events_unbound10:15:153
4069646992519,4cyclictest252-21systemd-journal11:00:003
4069641992522,2cyclictest4085072-21kworker/u8:1+flush-259:008:00:012
4069638992520,3cyclictest94447-21base6410:40:011
4069636992521,3cyclictest78481-21kworker/u8:2+events_unbound10:40:170
4069636992521,2cyclictest4095363-21kworker/u8:0+flush-259:007:45:240
4069636992517,5cyclictest252-21systemd-journal07:40:000
4069646992421,2cyclictest125349-21kworker/u8:4+flush-259:011:40:243
4069646992418,4cyclictest4152831-21apt-get08:30:123
4069641992421,2cyclictest94507-21kworker/u8:0+flush-259:011:05:152
4069641992421,2cyclictest4111413-21kworker/u8:4+events_unbound08:30:232
4069641992420,3cyclictest58062-21kworker/u8:4+events_unbound10:15:002
4069638992418,4cyclictest42212-21apt-get09:50:121
4069636992422,1cyclictest4111413-21kworker/u8:4+events_unbound08:40:140
4069636992422,1cyclictest1-21systemd12:37:000
4069638992319,3cyclictest125349-21kworker/u8:4+flush-259:012:10:221
4069636992321,1cyclictest211rcuc/008:50:000
4069636992320,2cyclictest125349-21kworker/u8:4+flush-259:012:10:220
4069636992317,4cyclictest252-21systemd-journal12:00:000
4069646992218,3cyclictest125349-21kworker/u8:4+flush-259:011:20:233
4069646992217,4cyclictest31659-21latency_hist09:40:003
4069641992219,2cyclictest4059161-21kworker/u8:2+flush-259:008:20:172
4069641992219,2cyclictest125349-21kworker/u8:4+flush-259:012:25:172
4069641992218,3cyclictest4162906-21kworker/u8:0+events_unbound09:14:022
4069641992217,4cyclictest4080154-21/usr/sbin/munin07:20:142
4069638992218,3cyclictest4069591-21kworker/u8:3+flush-259:007:25:271
4069638992217,4cyclictest509-21rs:main1
4069636992218,3cyclictest500-21systemd-logind11:55:010
4069636992217,4cyclictest4193880-21latency_hist09:10:010
4069636992217,4cyclictest141089-21latency_hist11:25:010
4069646992118,2cyclictest93863-21https10:40:003
4069646992118,2cyclictest125349-21kworker/u8:4+flush-259:012:10:123
4069646992116,3cyclictest125349-21kworker/u8:4+flush-259:012:15:193
4069646992115,4cyclictest252-21systemd-journal09:25:003
4069641992118,2cyclictest58062-21kworker/u8:4+events_unbound10:05:122
4069641992117,3cyclictest156646-21kworker/u8:2+flush-259:012:05:102
4069638992118,2cyclictest110419-21apt-get10:55:121
4069638992116,3cyclictest4111428-21/usr/sbin/munin07:50:131
4069638992115,5cyclictest166912-21latency_hist11:50:001
4069638992115,4cyclictest26776-21/usr/sbin/munin09:35:121
4069638992115,4cyclictest252-21systemd-journal12:05:011
4069638992114,5cyclictest15444-21kworker/u8:2+flush-259:009:45:161
4069636992118,2cyclictest4132082-21kworker/u8:3+flush-259:008:15:210
4069636992118,2cyclictest4132082-21kworker/u8:3+flush-259:008:15:200
4069646992016,3cyclictest4059161-21kworker/u8:2+events_unbound07:14:583
4069641992017,2cyclictest78481-21kworker/u8:2+flush-259:010:25:202
4069641992017,2cyclictest78481-21kworker/u8:2+events_unbound10:35:142
4069641992017,2cyclictest4152798-21kworker/u8:1+flush-259:008:40:212
4069641992017,2cyclictest136199-21kworker/u8:0+events_unbound11:25:202
4069641992016,3cyclictest4152798-21kworker/u8:1+events_unbound08:35:122
4069641992016,3cyclictest4037453-21kworker/u8:0+flush-259:007:10:102
4069641992014,4cyclictest4079913-21latency_hist07:20:022
4069636992018,1cyclictest125349-21kworker/u8:4+events_unbound12:15:180
4069636992017,2cyclictest58062-21kworker/u8:4+events_unbound10:30:240
4069636992016,3cyclictest156869-21apt-get11:40:110
4069636992015,4cyclictest4090477-21apt-get07:30:110
406963699200,18cyclictest1-21systemd08:40:010
4069646991917,2cyclictest136199-21kworker/u8:0+events_unbound11:25:223
4069646991916,2cyclictest509-21rs:main3
4069646991915,3cyclictest214023-21kworker/u8:0+flush-259:012:40:003
4069646991915,3cyclictest125349-21kworker/u8:4+events_unbound11:35:223
4069641991917,2cyclictest4095363-21kworker/u8:0+events_unbound07:40:172
4069641991914,2cyclictest156646-21kworker/u8:2+flush-259:011:50:222
4069638991915,3cyclictest75-21kswapd011:55:031
4069636991916,2cyclictest78481-21kworker/u8:2+flush-259:010:50:160
4069636991916,2cyclictest135978-21munin-run11:19:590
4069636991915,3cyclictest156646-21kworker/u8:2+events_unbound12:05:150
4069636991914,4cyclictest92928-21ntpq10:35:190
4069636991914,4cyclictest4085044-21latency_hist07:25:000
4069646991815,2cyclictest4069591-21kworker/u8:3+flush-259:007:25:213
4069646991815,2cyclictest4069591-21kworker/u8:3+flush-259:007:20:253
4069646991815,2cyclictest156646-21kworker/u8:2+events_unbound11:58:013
4069646991815,2cyclictest110004-21kworker/u8:3+flush-259:011:00:373
4069646991814,3cyclictest58062-21kworker/u8:4+events_unbound10:10:173
4069646991814,3cyclictest4069591-21kworker/u8:3+events_unbound07:30:123
4069646991814,3cyclictest120529-21kworker/u8:2+events_unbound11:16:013
4069646991812,4cyclictest47129-21latency_hist09:55:013
4069641991814,3cyclictest4162906-21kworker/u8:0+flush-259:009:30:152
4069641991814,3cyclictest252-21systemd-journal11:24:542
4069641991814,2cyclictest4090899-21irqcore07:30:162
406963899184,7cyclictest218997-21munin-plugin-st12:40:001
4069638991815,2cyclictest151414-21cron11:34:591
4069638991814,3cyclictest500-21systemd-logind07:15:001
4069638991814,3cyclictest125349-21kworker/u8:4+flush-259:012:25:151
4069636991815,2cyclictest125349-21kworker/u8:4+events_unbound11:30:180
4069636991814,3cyclictest78481-21kworker/u8:2+events_unbound10:25:210
4069636991814,3cyclictest4152798-21kworker/u8:1+flush-259:008:30:160
4069636991814,3cyclictest211rcuc/007:30:000
4069636991813,4cyclictest198528-21apt-get12:20:120
4069646991713,3cyclictest4085072-21kworker/u8:1+events_unbound07:45:013
4069641991714,2cyclictest94507-21kworker/u8:0+flush-259:011:00:002
4069641991714,2cyclictest41984-21kworker/u8:3+flush-259:010:00:212
4069641991714,2cyclictest156646-21kworker/u8:2+events_unbound12:19:322
4069641991714,2cyclictest125349-21kworker/u8:4+events_unbound12:00:212
4069641991713,3cyclictest252-21systemd-journal09:50:252
4069641991710,5cyclictest119551-21ntpq11:00:202
4069638991712,3cyclictest104575-21apt-get10:50:011
4069638991711,5cyclictest252-21systemd-journal10:20:001
4069638991711,4cyclictest5376-21/usr/sbin/munin09:15:131
4069636991714,2cyclictest60350irq/132-enp0s29f1:rx-011:12:020
4069636991711,4cyclictest4183604-21latency_hist09:00:010
4069636991711,4cyclictest252-21systemd-journal09:32:000
4069646991613,2cyclictest94507-21kworker/u8:0+flush-259:011:11:373
4069646991613,2cyclictest4173467-21kworker/u8:3+flush-259:009:00:213
4069646991613,2cyclictest4152798-21kworker/u8:1+flush-259:010:00:313
4069646991613,2cyclictest4111413-21kworker/u8:4+events_unbound08:40:153
4069646991613,2cyclictest15444-21kworker/u8:2+flush-259:009:55:313
4069646991613,1cyclictest0-21swapper/310:25:003
4069646991612,3cyclictest4085072-21kworker/u8:1+flush-259:007:55:253
4069646991612,3cyclictest4059161-21kworker/u8:2+flush-259:008:25:103
4069641991613,2cyclictest0-21swapper/209:59:592
4069641991612,3cyclictest156646-21kworker/u8:2+events_unbound11:45:112
4069638991613,2cyclictest198936-21irqcore12:20:161
4069638991612,3cyclictest4131870-21kworker/u8:1+flush-259:008:10:311
4069638991612,3cyclictest4131870-21kworker/u8:1+flush-259:008:10:301
4069638991612,3cyclictest4111413-21kworker/u8:4+flush-259:008:29:061
4069636991613,2cyclictest60350irq/132-enp0s29f1:rx-012:30:140
4069636991613,2cyclictest60350irq/132-enp0s29f1:rx-010:05:110
4069636991613,2cyclictest60350irq/132-enp0s29f1:rx-009:40:140
4069636991613,2cyclictest15444-21kworker/u8:2+events_unbound09:50:190
4069636991613,2cyclictest120486-21turbostat11:04:590
4069636991612,3cyclictest78460-21latency_hist10:25:000
4069636991612,3cyclictest4173467-21kworker/u8:3+events_unbound09:00:180
4069636991612,3cyclictest4069853-21apt-get07:10:110
4069636991610,4cyclictest252-21systemd-journal08:10:010
406964699159,5cyclictest83621-21latency_hist10:30:003
4069646991512,2cyclictest78481-21kworker/u8:2+events_unbound10:30:203
4069646991511,3cyclictest4173467-21kworker/u8:3+events_unbound08:53:013
4069646991511,3cyclictest156646-21kworker/u8:2+flush-259:011:50:393
4069646991511,3cyclictest125349-21kworker/u8:4+events_unbound12:25:143
406964199159,4cyclictest156646-21kworker/u8:2+events_unbound12:10:312
4069641991513,2cyclictest78481-21kworker/u8:2+flush-259:010:50:212
4069641991512,3cyclictest125349-21kworker/u8:4+events_unbound11:40:032
4069641991512,2cyclictest4069591-21kworker/u8:3+flush-259:007:25:182
4069641991511,3cyclictest4180991-21kthreadcore08:55:172
4069641991511,3cyclictest4162906-21kworker/u8:0+events_unbound09:37:472
4069641991510,3cyclictest94507-21kworker/u8:0+flush-259:010:45:382
406963899159,4cyclictest183031-21apt-get12:05:101
4069638991511,3cyclictest4059161-21kworker/u8:2+flush-259:007:15:171
406963699159,4cyclictest252-21systemd-journal10:45:590
4069636991513,1cyclictest60350irq/132-enp0s29f1:rx-008:10:230
4069636991513,1cyclictest60350irq/132-enp0s29f1:rx-008:10:230
4069636991512,2cyclictest60350irq/132-enp0s29f1:rx-007:40:230
4069636991512,2cyclictest4173467-21kworker/u8:3+flush-259:008:50:210
4069636991512,2cyclictest4147421-21idleruntime-cro08:25:000
4069636991511,3cyclictest4162906-21kworker/u8:0+events_unbound09:25:020
4069636991511,3cyclictest4095363-21kworker/u8:0+flush-259:007:55:190
4069646991412,2cyclictest15444-21kworker/u8:2+events_unbound09:45:263
4069646991411,2cyclictest78481-21kworker/u8:2+events_unbound10:50:213
4069646991411,2cyclictest4152798-21kworker/u8:1+events_unbound09:40:183
4069646991411,2cyclictest4141753-21unixbench_multi08:15:243
4069646991411,2cyclictest4141753-21unixbench_multi08:15:233
4069646991411,2cyclictest4111413-21kworker/u8:4+flush-259:008:01:373
4069646991411,2cyclictest0-21swapper/307:40:003
4069646991410,3cyclictest4059161-21kworker/u8:2+flush-259:008:46:163
4069646991410,3cyclictest4059161-21kworker/u8:2+flush-259:008:08:053
406964199149,4cyclictest4131870-21kworker/u8:1+events_unbound08:14:032
406964199149,4cyclictest4131870-21kworker/u8:1+events_unbound08:14:022
406964199149,4cyclictest120529-21kworker/u8:2+events_unbound11:15:032
406964199148,4cyclictest4132082-21kworker/u8:3+flush-259:008:25:052
4069641991412,2cyclictest78481-21kworker/u8:2+events_unbound10:41:012
4069641991410,3cyclictest151913-21fschecks_time11:35:132
406963899148,4cyclictest252-21systemd-journal09:30:011
406963899148,4cyclictest252-21systemd-journal07:49:591
4069638991411,2cyclictest62996-21cron10:10:001
4069638991410,3cyclictest125883-21/usr/sbin/munin11:10:151
4069638991410,3cyclictest125349-21kworker/u8:4+flush-259:011:40:261
406963899140,12cyclictest1-21systemd08:58:011
4069636991412,1cyclictest60350irq/132-enp0s29f1:rx-011:35:130
4069636991412,1cyclictest60350irq/132-enp0s29f1:rx-009:57:480
4069636991412,1cyclictest60350irq/132-enp0s29f1:rx-009:35:100
4069636991412,1cyclictest60350irq/132-enp0s29f1:rx-007:53:410
4069636991411,2cyclictest141572-21fschecks_time11:25:140
4069636991410,3cyclictest4188735-21kworker/u8:4+flush-259:009:15:150
406964699138,4cyclictest125349-21kworker/u8:4+flush-259:011:45:433
4069646991310,2cyclictest78481-21kworker/u8:2+events_unbound10:40:183
4069646991310,2cyclictest178124-21fschecks_time12:00:133
406964199139,3cyclictest58062-21kworker/u8:4+events_unbound10:34:542
406964199139,3cyclictest4152798-21kworker/u8:1+events_unbound09:47:412
406964199139,3cyclictest4111413-21kworker/u8:4+events_unbound08:02:472
4069641991310,2cyclictest4111413-21kworker/u8:4+flush-259:008:45:212
406963899139,3cyclictest4153003-21fschecks_count08:30:131
406963899139,3cyclictest36350-21unixbench_multi09:40:231
406963899139,3cyclictest136647-21irqcore11:20:161
406963899138,3cyclictest252-21systemd-journal11:09:001
406963899137,5cyclictest4127140-21diskstats08:05:141
406963899136,5cyclictest57831-21latency_hist10:05:011
406963699139,3cyclictest4162906-21kworker/u8:0+flush-259:009:20:210
4069636991311,2cyclictest60350irq/132-enp0s29f1:rx-010:02:440
4069636991311,1cyclictest61150irq/133-enp0s29f1:tx-009:11:590
4069636991310,2cyclictest60350irq/132-enp0s29f1:rx-007:15:190
4069646991210,2cyclictest4095363-21kworker/u8:0+events_unbound07:40:023
406963899129,2cyclictest4152798-21kworker/u8:1+flush-259:009:35:001
406963899129,2cyclictest145778-21unixbench_singl11:25:241
406963899129,2cyclictest131155-21cpuspeed_turbos11:15:121
406963899128,3cyclictest4059161-21kworker/u8:2+flush-259:008:45:011
406963899128,3cyclictest252-21systemd-journal08:51:591
406963899127,4cyclictest198268-21latency_hist12:20:001
4069638991210,1cyclictest0-21swapper/110:40:001
4069636991210,1cyclictest60350irq/132-enp0s29f1:rx-012:25:150
406964699117,3cyclictest4162906-21kworker/u8:0+events_unbound09:10:143
406963899118,2cyclictest84900-21tr10:30:171
406963899118,2cyclictest4147011-21unixbench_singl08:20:241
406963899118,2cyclictest117865-21kthreadcore11:00:171
406963899118,2cyclictest100108-21irqcore10:45:151
406963899107,2cyclictest78787-21cpuspeed_turbos10:25:131
406963899107,2cyclictest4137375-21cpuspeed_turbos08:15:131
406963899107,2cyclictest4137375-21cpuspeed_turbos08:15:131
406963899107,2cyclictest151756-21cpuspeed_turbos11:35:121
406963899106,2cyclictest4084164-21ntpq07:20:211
40696469996,2cyclictest4111518-21cpuspeed_turbos07:50:113
40696389995,3cyclictest4169168-21sed08:45:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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