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2026-02-11 - 09:18
[ 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 highest latencies:
System rack2slot7s.osadl.org (updated Tue Feb 10, 2026 19:55:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
491856996657,7cyclictest1310113-21multi.sh18:10:230
491856995750,3cyclictest0-21swapper/017:50:210
491858995547,5cyclictest1309130-21sh18:10:212
491856995541,11cyclictest1274669-21sh18:08:580
491856995446,5cyclictest745562-21tee17:41:110
491856995446,5cyclictest745562-21tee17:41:110
491857995244,5cyclictest755170-21sh17:41:371
491857995244,5cyclictest755170-21sh17:41:371
491856995142,6cyclictest497447-21execl17:20:150
491856995142,6cyclictest497447-21execl17:20:150
491858994941,5cyclictest1300904-21od18:10:012
491857994941,5cyclictest1303021-21sh18:10:061
491857994638,5cyclictest943672-21spawn18:03:451
491857994638,5cyclictest943672-21spawn18:03:451
491858994537,5cyclictest728332-21sh17:40:282
491858994537,5cyclictest728332-21sh17:40:282
491858994537,5cyclictest1-21systemd18:20:012
491857994538,4cyclictest1239950-21sh18:07:341
491858994433,5cyclictest0-21swapper/217:15:182
491858994433,5cyclictest0-21swapper/217:15:182
491856994433,6cyclictest0-21swapper/018:35:170
491858994335,5cyclictest802712-21execl17:50:272
491858994335,5cyclictest802120-21execl17:50:022
491857994331,9cyclictest803643-21Run17:51:131
491858994235,4cyclictest494821-21cron17:15:002
491858994235,4cyclictest494821-21cron17:15:002
491857994235,4cyclictest0-21swapper/117:49:471
491857994234,5cyclictest495144-21head17:15:021
491857994234,5cyclictest495144-21head17:15:021
491856994026,10cyclictest0-21swapper/017:38:580
491858993931,5cyclictest897096-21spawn18:03:102
491858993931,5cyclictest897096-21spawn18:03:102
491857993931,5cyclictest721726-21latency_hist17:40:021
491856993933,3cyclictest0-21swapper/018:30:020
491856993932,4cyclictest496606-21systemd-run17:20:010
491856993932,4cyclictest496606-21systemd-run17:20:010
491857993830,5cyclictest497980-21unixbench_multi17:20:261
491857993830,5cyclictest497980-21unixbench_multi17:20:261
491856993830,6cyclictest493407-21latency_hist17:10:010
491856993829,6cyclictest802117-21execl17:50:000
491858993730,3cyclictest0-21swapper/217:56:132
491858993729,4cyclictest498168-21kworker/u8:10-nfsiod17:40:022
49185799371,30cyclictest498377-21fstime17:25:231
49185799371,30cyclictest498377-21fstime17:25:231
491856993729,5cyclictest1183430-21spawn18:04:200
491856993729,5cyclictest1183430-21spawn18:04:200
491856993710,5cyclictest488371-21kworker/0:1+events_freezable_power_17:25:190
491856993710,5cyclictest488371-21kworker/0:1+events_freezable_power_17:25:190
491858993627,6cyclictest674-21gdbus18:28:082
491856993626,7cyclictest494822-21cron17:15:000
491856993626,7cyclictest494822-21cron17:15:000
491858993528,4cyclictest490153-21kworker/u8:0+xprtiod17:05:012
491858993528,4cyclictest490153-21kworker/u8:0+xprtiod17:05:012
491857993524,7cyclictest805249-21fstime17:56:141
491856993528,4cyclictest1380004-21munin-plugin-st18:35:010
491858993426,5cyclictest498174-21systemd-run17:25:012
491858993426,5cyclictest498174-21systemd-run17:25:012
491857993429,2cyclictest0-21swapper/117:20:001
491857993429,2cyclictest0-21swapper/117:20:001
49185699341,28cyclictest500356-21pipe17:30:160
491857993328,4cyclictest491855-21cyclictest18:15:181
491857993324,6cyclictest0-21swapper/117:35:001
491858993226,3cyclictest0-21swapper/217:35:002
491857993223,6cyclictest1381487-21cron18:40:011
491858993122,6cyclictest1-21systemd18:35:022
491856993114,13cyclictest564-21dbus-daemon17:57:520
491857993011,16cyclictest271ktimers/118:20:171
491856993024,4cyclictest1376966-21head18:20:260
491858992922,5cyclictest491855-21cyclictest17:05:212
491858992922,4cyclictest1377182-21latency_hist18:25:022
491857992919,8cyclictest493082-21timerandwakeup17:05:281
491857992823,3cyclictest0-21swapper/118:30:011
491857992517,5cyclictest3606335-21systemd-logind17:05:011
491857992517,5cyclictest3606335-21systemd-logind17:05:011
491856992513,8cyclictest3606321-21systemd-journal18:15:520
491858992419,3cyclictest0-21swapper/217:25:302
491858992419,3cyclictest0-21swapper/217:25:302
491858992418,3cyclictest1165-21mta-sts-daemon18:35:142
491856992418,3cyclictest0-21swapper/017:05:010
491856992418,3cyclictest0-21swapper/017:05:010
49185799232,15cyclictest1379423-21ntpq18:30:141
49185999193,11cyclictest0-21swapper/318:10:233
49185999189,7cyclictest0-21swapper/317:50:213
49185999183,7cyclictest0-21swapper/317:45:153
49185999182,8cyclictest0-21swapper/318:00:203
49185999182,8cyclictest0-21swapper/318:00:203
49185999172,9cyclictest0-21swapper/317:40:193
49185999172,9cyclictest0-21swapper/317:40:193
49185999161,9cyclictest0-21swapper/317:55:193
49185999161,6cyclictest0-21swapper/318:25:123
49185999152,7cyclictest0-21swapper/318:05:123
49185999143,5cyclictest0-21swapper/317:20:123
49185999143,5cyclictest0-21swapper/317:20:123
49185999143,4cyclictest0-21swapper/317:30:193
49185999142,6cyclictest0-21swapper/317:25:183
49185999142,6cyclictest0-21swapper/317:25:183
49185999141,6cyclictest0-21swapper/317:15:163
49185999141,6cyclictest0-21swapper/317:15:163
49185999132,5cyclictest0-21swapper/318:20:153
49185999123,5cyclictest0-21swapper/318:35:173
49185999123,5cyclictest0-21swapper/317:35:133
49185999122,6cyclictest0-21swapper/317:10:073
49185999122,6cyclictest0-21swapper/317:10:073
49185999106,3cyclictest0-21swapper/318:30:103
49185999102,5cyclictest0-21swapper/318:15:073
49185999102,4cyclictest0-21swapper/317:05:103
4918599982,3cyclictest431ktimers/317:05:003
4918599982,3cyclictest431ktimers/317:05:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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