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2026-02-27 - 12:29
[ 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 #b, slot #5

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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  Phytec
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot5s.osadl.org (updated Fri Feb 27, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4191715995531,19cyclictest37818-21grep21:00:283
4191703995337,12cyclictest121ktimers/021:30:110
4191703994942,3cyclictest86456-21latency_hist23:25:010
4191703994741,4cyclictest424-21kworker/u8:0+events_unbound19:37:000
4191703994741,4cyclictest424-21kworker/u8:0+events_unbound19:37:000
4191711994638,5cyclictest424-21kworker/u8:0+events_unbound19:21:582
419171599451,11cyclictest43619-21apt-get21:20:123
4191715994435,5cyclictest39957-21grep21:10:003
419171599441,12cyclictest43374-21munin-plugin-st21:20:003
419171599432,10cyclictest98215-21sshd23:56:283
4191715994317,21cyclictest0-21swapper/319:25:013
4191706994313,10cyclictest108322-21sed00:25:221
419171599429,6cyclictest101504-21/usr/sbin/munin00:05:253
419171599426,7cyclictest16930-21seq20:00:483
419171599422,6cyclictest30240-21grep20:40:183
419171599422,12cyclictest99765-21grep00:00:273
4191703994235,5cyclictest108645-21kworker/u8:2+events_unbound00:32:420
4191703994229,10cyclictest121ktimers/020:30:140
4191703994229,10cyclictest121ktimers/020:30:140
419171599413,7cyclictest4881-21head19:25:263
419171599412,9cyclictest65136-21grep22:20:243
419171599412,8cyclictest58303-21grep22:00:263
419171599412,7cyclictest12921-21grep19:50:183
419171599411,9cyclictest7251-21/usr/sbin/munin19:35:233
419171599411,9cyclictest7251-21/usr/sbin/munin19:35:233
419171599411,9cyclictest438-21cron23:05:013
419171599411,9cyclictest15133-21unixbench_singl19:55:253
4191715994115,22cyclictest0-21swapper/323:15:143
4191715994113,3cyclictest23176-21if_eth020:20:193
419171599411,11cyclictest1410-21cron19:17:013
419171599411,10cyclictest53627-21cron21:50:003
4191711994134,4cyclictest77793-21munin-plugin-st23:00:012
4191706994129,9cyclictest32484-21grep20:45:281
419170399418,5cyclictest131rcu_preempt21:05:100
419171599408,5cyclictest0-21swapper/321:50:123
419171599407,6cyclictest82005-21/usr/sbin/munin23:10:203
419171599402,8cyclictest91241-21head23:35:253
419171599401,9cyclictest79954-21sort23:05:153
4191715994013,3cyclictest0-21swapper/323:20:233
419171599401,11cyclictest111382-21/usr/sbin/munin00:35:183
419171199407,5cyclictest131rcu_preempt22:20:112
4191711994033,3cyclictest0-21swapper/222:40:002
4191706994029,8cyclictest42892-21grep21:15:271
4191706994028,7cyclictest0-21swapper/123:20:001
4191706994011,9cyclictest10618-21latency_hist19:45:011
4191706994011,9cyclictest10618-21latency_hist19:45:011
419171599393,5cyclictest0-21swapper/322:15:173
419171599393,13cyclictest66855-21tail22:25:263
419171599392,7cyclictest68559-21sed22:30:253
419171599392,6cyclictest89963-21cron23:35:003
419171599392,5cyclictest71142-21cut22:40:153
419171599391,9cyclictest9192-21fschecks_time19:40:173
419171599391,9cyclictest9192-21fschecks_time19:40:173
419171599391,9cyclictest4192077-21fschecks_time19:10:163
419171599391,7cyclictest96346-21tail23:50:243
4191715993914,2cyclictest0-21swapper/322:35:213
4191715993912,5cyclictest391ktimers/321:40:223
419171599391,12cyclictest92965-21grep23:40:253
419171599391,10cyclictest74506-21/usr/sbin/munin22:50:133
419171599391,10cyclictest46789-21cron21:30:003
419171599391,10cyclictest108573-21head00:25:233
4191711993930,6cyclictest63468-21grep22:15:262
4191711993929,6cyclictest0-21swapper/220:50:012
419171599381,8cyclictest438-21cron23:50:003
419171599381,6cyclictest61702-21grep22:10:243
419171599381,6cyclictest107097-21sshd00:22:423
4191715993813,6cyclictest59399-21sed22:05:183
4191715993812,3cyclictest0-21swapper/322:55:253
419171599381,11cyclictest34956-21wc20:55:013
419171599381,10cyclictest27322-21unixbench_singl20:30:283
419171599381,10cyclictest27322-21unixbench_singl20:30:283
419171599381,10cyclictest24763-21/usr/sbin/munin20:25:163
419171599381,10cyclictest24763-21/usr/sbin/munin20:25:163
419171599381,10cyclictest12297-21cat19:50:013
419170699389,11cyclictest14312-21grep19:55:161
4191706993828,6cyclictest20481-21grep20:10:281
4191703993829,6cyclictest49742-21unixbench_multi21:35:250
4191703993829,6cyclictest49742-21unixbench_multi21:35:250
419171599379,3cyclictest0-21swapper/320:55:243
419171599373,6cyclictest40993-21cat21:10:253
419171599371,6cyclictest29456-21cron20:40:003
4191715993713,3cyclictest20012-21ntp_states20:10:243
419171599371,10cyclictest32307-21grep20:45:283
419171599371,10cyclictest103246-21head00:10:263
419171599371,10cyclictest103246-21head00:10:263
419170699378,10cyclictest69830-21ntp_states22:35:221
4191706993728,5cyclictest0-21swapper/121:32:151
4191703993731,4cyclictest9545-21kworker/u8:1+events_unbound19:52:020
4191703993729,5cyclictest96751-21kworker/u8:0+events_unbound00:37:450
419171599369,3cyclictest74375-21latency_hist22:50:023
419171599367,5cyclictest47802-21/usr/sbin/munin21:30:243
419171599362,7cyclictest6528-21grep19:30:243
419171599362,5cyclictest57037-21cron22:00:013
419171599361,6cyclictest88411-21latency_hist23:30:013
419171599361,12cyclictest22616-21cron20:20:003
4191711993630,4cyclictest72430-21kworker/u8:0+events_unbound23:17:342
4191711993627,7cyclictest4186071-21kworker/u8:3+events_unbound19:14:412
419170699368,10cyclictest4192537-21ps19:10:221
4191706993628,4cyclictest0-21swapper/119:35:241
4191706993628,4cyclictest0-21swapper/119:35:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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