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2026-03-04 - 04:49
[ 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 #2, slot #7

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.
Unexpectedly long latencies may be caused by SMIs
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 376 highest latencies:
System rack2slot7s.osadl.org (updated Tue Mar 03, 2026 19:55:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
167845996730,25cyclictest1000974-21sh18:11:202
167843996353,6cyclictest453942-21sort17:42:350
167845996033,23cyclictest423422-21sh17:41:152
167845995749,3cyclictest365267-21kworker/u8:3-xprtiod17:50:342
167845995733,21cyclictest949898-21sh18:08:562
167843995739,14cyclictest479040-21execl17:50:260
167843995545,7cyclictest1028716-21tee18:12:330
167845995335,15cyclictest478761-21Run17:49:132
167844995341,7cyclictest404736-21od17:40:271
167844995243,5cyclictest986162-21wc18:10:351
167843995242,5cyclictest151ktimers/018:05:260
167844994940,6cyclictest624514-21spawn18:03:251
167844994940,5cyclictest977443-21sh18:10:021
167844994938,8cyclictest479037-21execl17:50:321
167845994727,17cyclictest838759-21spawn18:04:152
16784599441,9cyclictest170152-21awk17:10:252
16784599441,13cyclictest481304-21ntpq17:55:252
167844994437,4cyclictest158163-21kworker/u8:4-xprtiod17:15:011
167844994335,5cyclictest399338-21sh17:40:011
167843994333,7cyclictest399239-21sort17:40:010
16784599422,14cyclictest172811-21execl17:20:282
16784599421,5cyclictest1039733-21ntpq18:20:312
16784599421,10cyclictest366022-21ntpq17:35:292
16784599402,19cyclictest168728-21ntpq17:05:292
16784599401,4cyclictest1041133-21ntpq18:25:242
16784499401,34cyclictest176465-21pipe17:30:261
16784599391,4cyclictest171851-21ntpq17:15:302
16784599391,13cyclictest1044161-21ntpq18:35:292
16784499391,30cyclictest174368-21fstime17:25:291
167843993932,5cyclictest636-21in:imuxsock17:15:010
16784599382,8cyclictest1038161-21ntpq18:15:272
16784599381,4cyclictest1042703-21ntp_states18:30:282
167844993830,5cyclictest172691-21latency_hist17:20:021
167844993830,5cyclictest167856-21systemd-run17:05:021
16784399383,26cyclictest173608-21grep17:20:340
167843993823,12cyclictest0-21swapper/017:49:400
16784499372,31cyclictest172811-21execl17:20:271
167845993625,8cyclictest167849-21sh17:05:012
16784599360,11cyclictest175632-21fstime17:26:522
16784499361,30cyclictest480850-21fstime17:55:301
167843993625,3cyclictest171rcu_preempt18:02:530
167843993619,12cyclictest191rcuc/017:15:250
167844993527,5cyclictest478789-21execl17:49:461
16784499351,28cyclictest1165-21mta-sts-daemon18:15:311
16784599341,4cyclictest176834-21/usr/sbin/munin17:30:352
167844993423,8cyclictest168343-21fschecks_count17:05:211
167844993322,8cyclictest1044054-21needreboot18:35:241
167844993223,6cyclictest1042265-21fschecks_count18:30:171
167843993224,5cyclictest481915-21fstime17:56:150
16784399320,8cyclictest14-21ksoftirqd/018:25:250
167843993125,4cyclictest177155-21unixbench_singl17:30:390
167843993124,4cyclictest191rcuc/018:20:270
167843993025,3cyclictest175567-21grep17:25:430
167844992921,5cyclictest1039872-21mailstats18:20:351
167843992917,3cyclictest171rcu_preempt17:05:310
167843992914,3cyclictest171rcu_preempt18:35:280
167843992914,3cyclictest171rcu_preempt18:15:270
167844992822,3cyclictest0-21swapper/118:30:011
16784399279,4cyclictest14-21ksoftirqd/018:30:340
167843992717,3cyclictest171rcu_preempt17:05:010
16784699202,11cyclictest0-21swapper/318:10:353
16784699193,7cyclictest0-21swapper/318:05:243
16784699182,10cyclictest0-21swapper/317:56:143
16784699175,7cyclictest0-21swapper/317:40:323
16784699173,9cyclictest0-21swapper/317:50:263
16784699171,7cyclictest0-21swapper/317:15:323
16784699162,9cyclictest0-21swapper/317:45:293
16784699162,6cyclictest0-21swapper/318:15:243
16784699161,7cyclictest0-21swapper/318:25:233
16784699153,5cyclictest0-21swapper/318:35:323
16784699151,6cyclictest0-21swapper/317:35:263
16784699141,8cyclictest0-21swapper/318:00:503
16784699141,7cyclictest0-21swapper/317:05:273
16784699141,6cyclictest0-21swapper/317:10:263
16784699133,5cyclictest0-21swapper/317:20:183
16784699131,7cyclictest0-21swapper/317:30:283
16784699131,6cyclictest0-21swapper/318:30:273
16784699121,7cyclictest0-21swapper/317:25:293
16784699120,7cyclictest0-21swapper/318:20:303
16784699102,7cyclictest0-21swapper/317:05:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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