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2026-01-20 - 09:00
[ 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 here to display the system's profile data or here to proceed to next system.
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 Tue Jan 20, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3814430993935,3cyclictest3819602-21kworker/u8:3+flush-259:019:49:591
3814425993932,5cyclictest4036844-21latency_hist22:45:010
3814425993924,4cyclictest3897461-21apt-get20:30:100
3814436993431,2cyclictest4083795-21kworker/u8:0+events_unbound00:10:203
3814433993432,1cyclictest4036872-21fwupd22:45:022
3814425993429,3cyclictest3813947-21kworker/u8:0+flush-259:019:45:150
3814430993330,2cyclictest3876145-21kworker/u8:1+flush-259:021:20:011
3814430993329,3cyclictest3959179-21apt-get21:26:201
3814430993329,3cyclictest3819602-21kworker/u8:3+flush-259:019:55:001
3814425993326,5cyclictest4156107-21ntpq00:35:190
3814425993326,5cyclictest3911842-21ntpq20:40:220
3814433993227,4cyclictest4021377-21latency_hist22:30:002
3814425993127,3cyclictest3824961-21apt-get19:20:110
3814425993124,4cyclictest4073428-21latency_hist23:20:010
3814436993025,3cyclictest4151873-21kworker/u8:1+flush-259:000:35:133
3814430993024,4cyclictest3985306-21latency_hist21:55:001
3814425992924,3cyclictest252-21systemd-journal23:28:220
3814425992923,4cyclictest3964724-21latency_hist21:35:010
3814436992824,3cyclictest3902251-21kworker/u8:3+flush-259:020:50:203
3814436992823,3cyclictest3876145-21kworker/u8:1+flush-259:020:40:193
3814425992824,3cyclictest252-21systemd-journal20:29:590
3814425992823,4cyclictest252-21systemd-journal19:15:010
3814436992723,3cyclictest3923047-21kworker/u8:2+flush-259:021:15:133
3814430992722,3cyclictest252-21systemd-journal20:26:271
3814430992721,4cyclictest3819822-21apt-get19:15:121
3814433992622,3cyclictest4026559-21kworker/u8:0+flush-259:023:00:182
3814430992619,5cyclictest4087954-21ntpq23:30:211
3814425992623,2cyclictest1-21systemd22:31:270
3814425992621,3cyclictest4026559-21kworker/u8:0+flush-259:023:05:170
3814433992521,3cyclictest3949949-21kworker/u8:0+flush-259:021:54:592
3814430992523,1cyclictest4036872-21fwupd22:45:011
3814430992521,3cyclictest3876145-21kworker/u8:1+flush-259:020:20:001
3814425992519,4cyclictest252-21systemd-journal23:58:280
3814436992420,3cyclictest4083795-21kworker/u8:0+flush-259:000:20:173
3814433992420,3cyclictest4057538-21kworker/u8:3+flush-259:023:20:192
3814430992420,3cyclictest4026559-21kworker/u8:0+flush-259:023:00:161
3814425992417,5cyclictest3865002-21ntpq19:55:190
3814425992417,5cyclictest252-21systemd-journal20:58:270
3814436992317,4cyclictest4089542-21/usr/sbin/munin23:35:143
3814436992317,4cyclictest4052361-21latency_hist23:00:013
3814436992317,4cyclictest3871047-21latency_hist20:05:013
3814436992315,5cyclictest252-21systemd-journal00:25:013
3814433992320,2cyclictest3781134-21kworker/u8:1+flush-259:019:15:252
3814433992316,5cyclictest4129853-21ntpq00:10:212
3814436992218,3cyclictest4026559-21kworker/u8:0+flush-259:022:45:153
3814436992216,4cyclictest4068467-21cat23:15:013
3814436992216,4cyclictest3819602-21kworker/u8:3+flush-259:019:30:003
3814433992218,3cyclictest4042031-21kworker/u8:2+events_unbound23:15:002
3814430992219,2cyclictest3902251-21kworker/u8:3+flush-259:021:35:011
3814430992218,3cyclictest3813947-21kworker/u8:0+flush-259:020:25:001
3814425992216,4cyclictest4047422-21/usr/sbin/munin22:55:190
3814425992216,4cyclictest3917817-21latency_hist20:50:010
3814425992215,5cyclictest4104815-21latency_hist23:50:010
3814436992117,3cyclictest4083795-21kworker/u8:0+flush-259:023:45:163
3814436992116,3cyclictest3819602-21kworker/u8:3+events_unbound19:55:143
3814436992115,3cyclictest3876145-21kworker/u8:1+events_unbound21:10:003
3814436992114,5cyclictest3876145-21kworker/u8:1+flush-259:021:20:163
3814433992117,3cyclictest509-21rs:main2
3814430992116,4cyclictest3933570-21apt-get21:05:111
3814430992114,5cyclictest3870224-21ntpq20:00:221
3814436992017,2cyclictest4057529-21munin-plugin-st23:05:003
3814436992016,3cyclictest4094097-21kworker/u8:1+flush-259:023:40:233
3814436992016,3cyclictest3813947-21kworker/u8:0+events_unbound19:45:153
3814436992015,4cyclictest3902251-21kworker/u8:3+events_unbound20:35:253
3814433992017,2cyclictest4141034-21cron00:24:592
3814433992017,2cyclictest3949196-21sh21:20:012
3814433992016,3cyclictest3896746-21kworker/u8:2+flush-259:020:30:232
3814430992017,2cyclictest4083795-21kworker/u8:0+flush-259:023:45:251
3814430992014,4cyclictest252-21systemd-journal22:36:281
3814425992014,4cyclictest3954338-21latency_hist21:25:010
3814436991916,2cyclictest3915235-21kthreadcore20:45:173
3814436991915,3cyclictest4008455-21kthreadcore22:15:173
3814436991915,3cyclictest3990658-21/usr/sbin/munin22:00:143
3814436991914,4cyclictest4016402-21kworker/u8:3+events_unbound22:35:213
3814433991916,2cyclictest3959218-21kworker/u8:4+flush-259:022:10:192
3814433991916,2cyclictest3813947-21kworker/u8:0+flush-259:019:10:172
381443099195,6cyclictest3990423-21apt22:00:001
3814430991917,1cyclictest3907507-21cron20:40:001
3814430991915,3cyclictest3840182-21kworker/u8:2+flush-259:019:35:241
3814430991913,4cyclictest4109964-21latency_hist23:55:011
3814430991913,4cyclictest252-21systemd-journal22:20:271
3814425991915,3cyclictest3876145-21kworker/u8:1+flush-259:020:10:170
3814425991914,4cyclictest3959529-21latency_hist21:30:010
3814425991913,4cyclictest4052598-21/usr/sbin/munin23:00:150
3814425991912,6cyclictest3922127-21ntpq20:50:200
3814436991815,2cyclictest3975701-21irqcore21:45:173
3814436991814,3cyclictest4035970-21ntp_kernel_pll_22:40:213
3814436991813,3cyclictest4099652-21kworker/u8:2+events_unbound23:50:173
381443399187,6cyclictest4026522-21grep22:35:002
3814433991814,3cyclictest3876145-21kworker/u8:1+flush-259:020:35:262
3814433991812,4cyclictest3814322-21latency_hist19:10:002
3814430991815,2cyclictest3813947-21kworker/u8:0+flush-259:019:40:261
3814430991814,3cyclictest3995856-21kworker/u8:0+flush-259:022:10:251
3814430991813,3cyclictest252-21systemd-journal20:12:331
381443099180,2cyclictest4073429-21idleruntime-cro23:20:001
3814425991814,3cyclictest3891662-21apt-get20:25:000
3814425991812,4cyclictest252-21systemd-journal19:34:590
3814425991811,5cyclictest4020496-21ntpq22:25:190
3814436991713,3cyclictest3959218-21kworker/u8:4+flush-259:022:30:203
3814436991713,3cyclictest3813947-21kworker/u8:0+events_unbound19:10:133
3814436991711,4cyclictest4088873-21latency_hist23:35:013
3814433991715,1cyclictest0-21swapper/223:00:002
3814433991714,2cyclictest4083752-21munin-plugin-st23:30:002
3814433991713,3cyclictest3959218-21kworker/u8:4+events_unbound21:50:002
3814433991713,3cyclictest3902251-21kworker/u8:3+flush-259:021:05:262
3814430991713,3cyclictest4042031-21kworker/u8:2+flush-259:023:10:161
3814430991713,3cyclictest3995856-21kworker/u8:0+flush-259:022:15:261
3814430991713,2cyclictest4125565-21sh00:10:001
3814430991712,3cyclictest3814615-21apt-get19:10:121
3814430991712,3cyclictest252-21systemd-journal19:23:271
3814430991711,4cyclictest252-21systemd-journal23:41:271
3814425991714,2cyclictest60350irq/132-enp0s29f1:rx-021:10:020
3814425991714,2cyclictest4068271-21latency_hist23:15:010
3814425991712,3cyclictest3944295-21apt-get21:15:110
3814436991612,3cyclictest3995856-21kworker/u8:0+flush-259:022:20:163
3814436991611,3cyclictest3959218-21kworker/u8:4+flush-259:021:55:203
381443399169,5cyclictest4046303-21ntpq22:50:222
3814433991612,3cyclictest4031910-21kworker/u8:1+flush-259:022:40:212
3814433991610,4cyclictest4016402-21kworker/u8:3+flush-259:022:35:162
3814430991612,3cyclictest4057538-21kworker/u8:3+flush-259:023:20:291
3814430991612,3cyclictest3876145-21kworker/u8:1+flush-259:020:55:391
3814425991613,2cyclictest60350irq/132-enp0s29f1:rx-022:13:040
3814425991613,2cyclictest4135898-21sh00:19:590
3814425991611,4cyclictest4141047-21apt-get00:24:590
3814436991511,3cyclictest3845317-21latency_hist19:39:593
381443399159,4cyclictest3866309-21diskstats20:00:122
3814433991513,1cyclictest0-21swapper/221:35:012
3814433991512,2cyclictest4132271-21kthreadcore00:15:162
3814433991512,2cyclictest3845298-21idleruntime-cro19:39:592
3814433991511,3cyclictest3959218-21kworker/u8:4+flush-259:021:40:212
3814433991510,4cyclictest3938445-21apt-get21:10:002
381443099159,4cyclictest4083751-21latency_hist23:30:021
381443099159,4cyclictest3939135-21apt-get21:10:111
3814430991512,2cyclictest4110011-21kworker/u8:1+flush-259:000:00:181
3814430991512,2cyclictest3959218-21kworker/u8:4+flush-259:022:25:141
3814430991511,3cyclictest3970096-21kworker/u8:1+flush-259:021:45:011
3814425991513,2cyclictest60350irq/132-enp0s29f1:rx-021:39:370
3814425991513,1cyclictest60350irq/132-enp0s29f1:rx-022:06:030
3814425991513,1cyclictest60350irq/132-enp0s29f1:rx-021:45:160
3814425991513,1cyclictest60350irq/132-enp0s29f1:rx-021:05:510
3814425991513,1cyclictest60350irq/132-enp0s29f1:rx-020:15:150
3814425991512,2cyclictest60350irq/132-enp0s29f1:rx-019:44:030
3814425991512,2cyclictest60350irq/132-enp0s29f1:rx-000:28:330
3814425991512,2cyclictest4042031-21kworker/u8:2+events_unbound23:35:200
3814425991511,2cyclictest4120419-21turbostat00:05:000
381443699149,4cyclictest4130765-21kworker/u8:2+events_unbound00:30:223
381443699149,3cyclictest4042031-21kworker/u8:2+events_unbound23:10:183
381443699148,4cyclictest3937636-21cut21:05:233
3814436991410,3cyclictest4057538-21kworker/u8:3+flush-259:023:20:263
3814436991410,3cyclictest3959218-21kworker/u8:4+flush-259:022:10:143
3814436991410,3cyclictest3959218-21kworker/u8:4+flush-259:022:05:203
3814436991410,3cyclictest3892223-21gpgv20:25:013
3814436991410,3cyclictest3876145-21kworker/u8:1+flush-259:020:10:233
381443399148,4cyclictest3912688-21latency_hist20:45:002
381443399148,4cyclictest252-21systemd-journal22:05:002
381443399141,4cyclictest38303612grep19:25:172
3814433991410,3cyclictest4057538-21kworker/u8:3+flush-259:023:15:152
381443099149,3cyclictest3871285-21/usr/sbin/munin20:05:201
381443099149,3cyclictest252-21systemd-journal20:44:591
3814430991410,3cyclictest4130765-21kworker/u8:2+flush-259:000:30:251
3814430991410,3cyclictest3819602-21kworker/u8:3+flush-259:019:55:201
381442599148,4cyclictest3834125-21ntpq19:25:230
3814425991413,1cyclictest60350irq/132-enp0s29f1:rx-021:40:100
3814425991412,1cyclictest60350irq/132-enp0s29f1:rx-023:50:160
3814425991412,1cyclictest60350irq/132-enp0s29f1:rx-023:30:160
3814425991412,1cyclictest60350irq/132-enp0s29f1:rx-022:35:020
3814425991412,1cyclictest60350irq/132-enp0s29f1:rx-021:57:550
3814425991412,1cyclictest60350irq/132-enp0s29f1:rx-021:50:110
3814425991411,2cyclictest60350irq/132-enp0s29f1:rx-000:13:420
381443699139,2cyclictest0-21swapper/321:30:003
381443399137,5cyclictest4145748-21ntpq00:25:202
381443399137,4cyclictest3891664-21latency_hist20:25:012
381443399135,6cyclictest3989491-21ntpq21:55:222
3814433991310,2cyclictest4115572-21cpuspeed_turbos00:00:142
3814433991310,1cyclictest3969854-21idleruntime-cro21:40:002
381443099139,3cyclictest4042031-21kworker/u8:2+flush-259:023:10:001
381443099139,3cyclictest3928386-21apt-get21:00:131
3814430991310,2cyclictest4126844-21kthreadcore00:10:171
381442599137,4cyclictest252-21systemd-journal20:05:000
3814425991311,1cyclictest60350irq/132-enp0s29f1:rx-021:00:260
3814425991311,1cyclictest60350irq/132-enp0s29f1:rx-020:37:420
3814425991310,2cyclictest60350irq/132-enp0s29f1:rx-019:50:120
381443699129,2cyclictest3813947-21kworker/u8:0+flush-259:020:17:303
381443699127,3cyclictest3835258-21/usr/sbin/munin19:30:143
381443699121,9cyclictest3824696-21awk19:20:013
381443399129,2cyclictest3913069-21cpuspeed_turbos20:45:132
381443399129,2cyclictest3825184-21fschecks_time19:20:132
381443399128,3cyclictest3923047-21kworker/u8:2+flush-259:021:20:212
381443399127,3cyclictest252-21systemd-journal00:40:012
381443399126,4cyclictest252-21systemd-journal22:20:002
381443399123,3cyclictest4109954-21idleruntime-cro23:55:002
3814433991210,1cyclictest4130765-21kworker/u8:2+events_unbound00:30:122
381443099128,3cyclictest3902251-21kworker/u8:3+flush-259:020:50:251
381442599129,2cyclictest60350irq/132-enp0s29f1:rx-022:23:060
381442599129,2cyclictest60350irq/132-enp0s29f1:rx-000:05:240
3814425991210,2cyclictest60350irq/132-enp0s29f1:rx-022:17:220
381443399119,1cyclictest0-21swapper/221:25:172
381443399117,3cyclictest3876145-21kworker/u8:1+flush-259:020:10:152
381443399115,4cyclictest3872882-21tr20:05:182
381443399111,2cyclictest4125572-21awk00:10:002
381443099119,1cyclictest0-21swapper/100:25:011
381443099116,4cyclictest3949459-21apt-get21:20:101
381443099112,8cyclictest131-1kworker/1:1H-kblockd22:55:001
381443699108,1cyclictest0-21swapper/321:50:163
381443399108,1cyclictest0-21swapper/220:19:592
381443399107,2cyclictest3858898-21kthreadcore19:50:182
381443399105,3cyclictest4061783-21awk23:05:212
381443399104,4cyclictest4011478-21diskstats22:20:132
381443099108,1cyclictest0-21swapper/119:30:161
381443099107,2cyclictest3996305-21irqcore22:05:161
381443099107,2cyclictest3876145-21kworker/u8:1+flush-259:020:45:171
38144339996,2cyclictest3928528-21cpuspeed_turbos21:00:142
38144339995,2cyclictest4094696-21/usr/sbin/munin23:40:122
38144339985,2cyclictest4099964-21cpuspeed_turbos23:45:122
38144339972,3cyclictest3918369-21/usr/sbin/munin20:50:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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