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2026-09-01 - 11:33

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 all highest latencies:
System rackeslot4s.osadl.org (updated Tue Sep 01, 2026 00:44:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3470045994540,3cyclictest3610834-21apt-get21:25:122
3470047993832,4cyclictest3485701-21cat19:25:003
3470038993832,4cyclictest3772076-21latency_hist00:00:020
3470047993632,3cyclictest3626748-21apt-get21:40:113
3470045993632,3cyclictest3746116-21apt-get23:35:122
3470041993530,4cyclictest3756773-21cat23:45:021
3470041993327,4cyclictest3746037-21cat23:35:011
3470038993329,3cyclictest3793031-21kworker/u8:2+flush-259:000:25:250
3470045992622,2cyclictest3558756-21apt-get20:35:102
3470041992622,3cyclictest3756818-21kworker/u8:3+flush-259:000:00:001
3470038992520,4cyclictest509-21rs:main0
3470038992520,4cyclictest509-21rs:main0
3470047992319,3cyclictest3745632-21store23:35:013
3470047992319,3cyclictest335557-21systemd-journal00:20:003
3470041992317,4cyclictest335557-21systemd-journal23:45:001
3470047992117,3cyclictest3517353-21apt-get19:55:123
3470038992115,4cyclictest3610567-21latency_hist21:25:010
3470047992015,4cyclictest3579581-21latency_hist20:55:003
3470047992015,4cyclictest3564234-21gpgv20:40:013
3470045992016,3cyclictest3620219-21kworker/u8:1+flush-259:021:40:242
3470045992015,3cyclictest335557-21systemd-journal20:05:002
3470047991916,2cyclictest3756502-21latency_hist23:45:013
3470041991917,1cyclictest3631671-21latency_hist21:45:011
3470041991917,1cyclictest3537757-21cron20:14:591
3470041991917,1cyclictest0-21swapper/120:20:001
3470041991914,3cyclictest335557-21systemd-journal21:36:231
3470047991815,2cyclictest3647565-21fschecks_count22:00:123
3470047991814,3cyclictest509-21rs:main3
3470045991815,2cyclictest0-21swapper/223:25:012
3470045991814,3cyclictest3511845-21cron19:49:592
3470041991815,2cyclictest3656592-21ntp_kernel_pll_22:05:231
3470041991815,1cyclictest0-21swapper/121:55:001
3470038991815,2cyclictest0-21swapper/021:54:590
3470038991814,2cyclictest60350irq/132-enp0s29f1:rx-019:30:130
3470038991814,2cyclictest1-21systemd19:40:000
3470038991812,4cyclictest335557-21systemd-journal22:55:000
3470047991715,1cyclictest3605422-21grep21:20:003
3470047991715,1cyclictest3517083-21latency_hist19:55:003
3470047991714,2cyclictest3703466-21unixbench_multi22:50:243
3470047991714,2cyclictest3569491-21apt-get20:45:123
3470047991713,3cyclictest3762005-21apt-get23:50:123
3470047991713,2cyclictest0-21swapper/322:20:003
3470045991714,2cyclictest3632338-21irqcore21:45:162
3470045991714,2cyclictest3579571-21idleruntime-cro20:55:002
3470045991714,2cyclictest0-21swapper/200:24:592
3470041991715,1cyclictest0-21swapper/123:35:011
3470041991715,1cyclictest0-21swapper/121:50:001
3470041991714,2cyclictest3756818-21kworker/u8:3+flush-259:023:55:001
3470041991714,2cyclictest3620219-21kworker/u8:1+flush-259:023:30:001
3470038991714,2cyclictest60350irq/132-enp0s29f1:rx-022:14:150
3470038991714,2cyclictest0-21swapper/021:10:000
3470038991711,4cyclictest3568371-21ntpq20:40:230
347003899170,15cyclictest1-21systemd22:24:240
3470047991614,1cyclictest3730519-21irqcore23:20:153
3470047991613,2cyclictest2971-21cron21:10:003
3470047991612,3cyclictest3620219-21kworker/u8:1+flush-259:023:50:003
3470045991614,1cyclictest0-21swapper/223:45:012
3470045991613,2cyclictest3601542-21kthreadcore21:15:182
3470045991611,4cyclictest3647363-21/usr/sbin/munin22:00:122
3470041991613,2cyclictest335557-21systemd-journal23:25:001
3470038991613,2cyclictest61150irq/133-enp0s29f1:tx-022:30:130
3470038991613,2cyclictest60350irq/132-enp0s29f1:rx-023:10:140
3470038991613,2cyclictest60350irq/132-enp0s29f1:rx-021:55:200
3470047991512,2cyclictest3491839-21tr19:30:163
3470047991511,2cyclictest3688446-21cron22:40:003
3470047991510,4cyclictest335557-21systemd-journal00:30:243
3470045991512,2cyclictest3569591-21cpuspeed_turbos20:45:142
3470045991511,3cyclictest3620219-21kworker/u8:1+flush-259:000:30:262
3470041991512,2cyclictest3657325-21kworker/u8:3+events_unbound22:30:181
3470041991512,2cyclictest3501546-21systemd-run19:40:001
3470038991514,1cyclictest60350irq/132-enp0s29f1:rx-023:42:120
3470038991513,2cyclictest60350irq/132-enp0s29f1:rx-023:28:120
3470038991513,2cyclictest60350irq/132-enp0s29f1:rx-022:09:130
3470038991513,1cyclictest61150irq/133-enp0s29f1:tx-023:15:210
3470038991513,1cyclictest60350irq/132-enp0s29f1:rx-023:50:180
3470038991513,1cyclictest60350irq/132-enp0s29f1:rx-023:21:470
3470038991513,1cyclictest60350irq/132-enp0s29f1:rx-022:45:120
3470038991513,1cyclictest60350irq/132-enp0s29f1:rx-019:15:160
3470038991513,1cyclictest60350irq/132-enp0s29f1:rx-000:20:300
3470038991513,1cyclictest60350irq/132-enp0s29f1:rx-000:00:190
3470038991512,2cyclictest60350irq/132-enp0s29f1:rx-021:40:000
3470038991512,2cyclictest60350irq/132-enp0s29f1:rx-020:35:120
3470038991512,2cyclictest60350irq/132-enp0s29f1:rx-020:25:190
3470038991512,2cyclictest60350irq/132-enp0s29f1:rx-019:27:280
3470038991512,2cyclictest60350irq/132-enp0s29f1:rx-019:10:130
3470038991511,1cyclictest60350irq/132-enp0s29f1:rx-022:15:260
3470038991510,4cyclictest3522480-21apt-get20:00:130
3470047991412,1cyclictest0-21swapper/321:59:593
3470047991411,2cyclictest3792988-21unixbench_singl00:20:243
3470047991411,2cyclictest3579811-21kworker/u8:1+flush-259:021:15:003
3470047991410,3cyclictest3672974-21kworker/u8:2+flush-259:023:00:243
3470047991410,3cyclictest335557-21systemd-journal23:16:233
347004599148,4cyclictest3626482-21latency_hist21:40:012
347004599147,5cyclictest335557-21systemd-journal19:15:012
347004199149,4cyclictest3709095-21latency_hist23:00:001
3470041991412,1cyclictest0-21swapper/122:55:011
3470041991412,1cyclictest0-21swapper/100:19:591
3470041991411,2cyclictest3793004-21unixbench_singl00:20:241
3470041991411,2cyclictest3620437-21ntp_kernel_pll_21:30:221
3470041991411,2cyclictest3620219-21kworker/u8:1+flush-259:000:34:591
3470041991411,2cyclictest0-21swapper/119:55:141
3470041991410,3cyclictest3673217-21apt-get22:25:111
3470038991413,1cyclictest60350irq/132-enp0s29f1:rx-022:37:040
3470038991413,1cyclictest60350irq/132-enp0s29f1:rx-000:19:590
3470038991412,1cyclictest60350irq/132-enp0s29f1:rx-023:35:110
3470038991412,1cyclictest60350irq/132-enp0s29f1:rx-022:00:190
3470038991412,1cyclictest60350irq/132-enp0s29f1:rx-019:41:060
3470038991412,1cyclictest60350irq/132-enp0s29f1:rx-000:30:300
3470038991412,1cyclictest60350irq/132-enp0s29f1:rx-000:12:270
3470038991412,1cyclictest60350irq/132-enp0s29f1:rx-000:05:360
3470038991411,2cyclictest60350irq/132-enp0s29f1:rx-023:30:220
3470038991411,2cyclictest60350irq/132-enp0s29f1:rx-022:40:090
3470038991411,2cyclictest60350irq/132-enp0s29f1:rx-021:40:150
3470038991411,2cyclictest60350irq/132-enp0s29f1:rx-021:32:230
3470038991411,2cyclictest60350irq/132-enp0s29f1:rx-020:50:130
347004799139,2cyclictest0-21swapper/323:35:263
347004799136,5cyclictest3616361-21cp21:30:023
3470047991311,1cyclictest0-21swapper/323:10:003
3470047991310,2cyclictest3505697-21needreboot19:40:213
347004599138,4cyclictest3486201-21kworker/u8:3+flush-259:019:25:272
3470045991310,2cyclictest3704151-21kworker/u8:4+flush-259:023:05:002
3470045991310,2cyclictest3703497-21unixbench_singl22:50:242
3470045991310,2cyclictest3663022-21cpuspeed_turbos22:15:132
3470045991310,2cyclictest3501758-21kworker/u8:2+flush-259:020:10:262
3470045991310,2cyclictest3485121-21unixbench_singl19:20:252
3470045991310,2cyclictest1-21systemd19:16:232
3470045991310,2cyclictest0-21swapper/219:34:592
347004199139,3cyclictest335557-21systemd-journal19:41:481
347004199139,2cyclictest0-21swapper/122:40:011
347004199138,4cyclictest335557-21systemd-journal21:15:001
347004199137,4cyclictest3652306-21latency_hist22:05:001
347004199137,4cyclictest335557-21systemd-journal23:09:221
3470041991311,1cyclictest0-21swapper/120:55:151
3470041991311,1cyclictest0-21swapper/119:35:001
3470041991310,2cyclictest3777274-21idleruntime-cro00:05:011
3470041991310,2cyclictest3631280-21kworker/u8:0+flush-259:022:15:001
3470041991310,2cyclictest3620219-21kworker/u8:1+flush-259:023:15:211
3470041991310,2cyclictest3600521-21apt-get21:15:121
3470041991310,2cyclictest3569752-21fschecks_time20:45:151
3470041991310,2cyclictest3512196-21cpuspeed_turbos19:50:131
347003899139,3cyclictest3756850-21apt-get23:45:110
3470038991312,1cyclictest60350irq/132-enp0s29f1:rx-020:15:170
3470038991311,2cyclictest60350irq/132-enp0s29f1:rx-019:55:040
3470038991311,2cyclictest60350irq/132-enp0s29f1:rx-019:45:160
3470038991311,1cyclictest60350irq/132-enp0s29f1:rx-023:07:450
3470038991311,1cyclictest60350irq/132-enp0s29f1:rx-022:55:180
3470038991311,1cyclictest60350irq/132-enp0s29f1:rx-020:55:120
3470038991311,1cyclictest60350irq/132-enp0s29f1:rx-020:49:470
3470038991311,1cyclictest60350irq/132-enp0s29f1:rx-019:53:560
3470038991310,2cyclictest60350irq/132-enp0s29f1:rx-021:26:200
3470038991310,2cyclictest60350irq/132-enp0s29f1:rx-020:10:580
3470038991310,2cyclictest3772313-21kworker/u8:4+flush-259:000:35:180
347004799129,2cyclictest500-21systemd-logind20:10:003
347004799129,2cyclictest3772313-21kworker/u8:4+flush-259:000:10:163
347004799129,2cyclictest0-21swapper/319:15:013
347004799129,1cyclictest0-21swapper/323:25:203
347004799129,1cyclictest0-21swapper/322:10:203
3470047991210,1cyclictest0-21swapper/320:25:143
347004599129,2cyclictest3514044-21kthreadcore19:50:182
347004599129,2cyclictest3501758-21kworker/u8:2+flush-259:020:15:262
347004599128,3cyclictest3464904-21kworker/u8:0+flush-259:020:31:282
347004599126,5cyclictest0-21swapper/221:25:002
347004199128,2cyclictest0-21swapper/121:30:011
347004199126,4cyclictest3475402-21/usr/sbin/munin19:15:191
3470041991210,1cyclictest3543647-21sed20:20:171
3470041991210,1cyclictest3543647-21sed20:20:171
3470041991210,1cyclictest0-21swapper/120:05:171
3470041991210,1cyclictest0-21swapper/119:25:011
347003899129,2cyclictest60350irq/132-enp0s29f1:rx-020:05:140
347003899129,2cyclictest3588923-21needreboot21:00:210
347003899128,3cyclictest3672974-21kworker/u8:2+flush-259:022:25:480
347003899126,4cyclictest335557-21systemd-journal19:25:010
3470038991210,1cyclictest60350irq/132-enp0s29f1:rx-020:30:150
347004799119,1cyclictest0-21swapper/321:25:013
347004799117,3cyclictest3614924-21sshd21:25:233
347004799117,3cyclictest3500478-21sed19:35:203
347004799116,3cyclictest3809218-21sshd00:38:223
347004799110,3cyclictest3558492-21latency_hist20:35:013
347004599119,1cyclictest0-21swapper/220:30:002
347004599119,1cyclictest0-21swapper/219:55:142
347004599119,1cyclictest0-21swapper/200:05:012
347004599118,2cyclictest3778332-21cpuspeed_turbos00:10:092
347004599118,2cyclictest0-21swapper/221:05:212
347004599118,1cyclictest0-21swapper/220:25:002
347004599118,1cyclictest0-21swapper/220:25:002
347004599117,3cyclictest3595315-21/usr/sbin/munin21:10:212
347004599116,3cyclictest1-21systemd22:30:012
347004599111,8cyclictest3693568-21awk22:45:012
347004199118,2cyclictest3564441-21cpuspeed_turbos20:40:141
347004199118,1cyclictest0-21swapper/121:10:011
347004199116,3cyclictest3563964-21cat20:40:011
347003899119,1cyclictest60350irq/132-enp0s29f1:rx-021:45:140
347003899119,1cyclictest60350irq/132-enp0s29f1:rx-021:18:230
347003899111,3cyclictest3714290-21munin-plugin-st23:05:010
347004799103,5cyclictest490-21dbus-daemon20:18:213
347004799100,2cyclictest3491149-21latency_hist19:30:013
347004599107,2cyclictest3698333-21unixbench_singl22:45:252
347004199107,2cyclictest3719860-21cpuspeed_turbos23:10:121
34700479997,1cyclictest0-21swapper/320:35:153
34700459996,2cyclictest3804577-21cpuspeed_turbos00:35:132
34700459995,3cyclictest3687472-21grep22:35:202
34700459984,3cyclictest3531017-21cut20:05:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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