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2026-02-06 - 09:34
[ 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 100 highest latencies:
System rack2slot7s.osadl.org (updated Thu Feb 05, 2026 19:55:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1200264996353,7cyclictest2014967-21sh18:10:282
1200258996127,31cyclictest1510884-21execl17:50:220
1200260996049,6cyclictest2016297-21sh18:10:331
1200258995641,12cyclictest2007293-21sh18:10:050
1200258995540,11cyclictest2017102-21grep18:10:360
1200258995437,12cyclictest151ktimers/018:25:160
1200264995344,5cyclictest1466182-21sh17:41:432
1200260995346,4cyclictest1456845-21sh17:41:171
1200260995042,5cyclictest1981070-21sh18:09:001
1200258995040,7cyclictest1513883-21Run18:00:010
1200258995037,10cyclictest1501488-21od17:43:140
1200264994943,3cyclictest0-21swapper/217:50:252
1200264994940,5cyclictest2006113-21sh18:10:022
1200258994740,4cyclictest1510316-21execl17:50:020
1200258994740,4cyclictest1510316-21execl17:50:020
1200264994638,5cyclictest1431173-21sh17:40:012
1200264994536,5cyclictest1510318-21execl17:50:042
1200264994536,5cyclictest1510318-21execl17:50:042
1200258994536,6cyclictest1203179-21Run17:15:020
1200264994435,6cyclictest1205955-21mailstats17:20:192
1200260994439,3cyclictest0-21swapper/117:20:131
1200260994235,4cyclictest0-21swapper/117:50:151
1200258994225,14cyclictest1431355-21sh17:40:020
120026099414,29cyclictest1514561-21sleep18:00:111
1200258994031,6cyclictest1644219-21spawn18:03:190
1200264993830,5cyclictest1-21systemd17:15:012
1200260993829,6cyclictest1510316-21execl17:50:021
1200260993829,6cyclictest1510316-21execl17:50:021
120026499371,30cyclictest1208629-21pipe17:30:142
1200260993629,4cyclictest0-21swapper/117:15:011
1200260993628,5cyclictest1431264-21sh17:40:011
1200264993525,5cyclictest1515270-21context118:01:292
1200264993521,10cyclictest2066221-21aten_r2power_vo18:20:012
1200264993521,10cyclictest2066221-21aten_r2power_vo18:20:012
1200260993529,3cyclictest0-21swapper/118:20:011
1200260993529,3cyclictest0-21swapper/118:20:011
1200260993529,3cyclictest0-21swapper/118:00:011
1200260993527,5cyclictest2067441-21unixbench_multi18:20:221
1200260993527,5cyclictest1207992-21munin-run17:30:011
1200258993531,3cyclictest1200254-21cyclictest17:20:000
1200264993429,2cyclictest0-21swapper/217:10:012
1200264993425,6cyclictest1208095-21systemd17:30:032
1200258993423,9cyclictest2072178-21cron18:40:010
1200258993423,9cyclictest2072178-21cron18:40:010
1200264993325,5cyclictest2072319-21cpuspeed18:40:012
1200264993325,5cyclictest2072319-21cpuspeed18:40:012
1200264993325,5cyclictest1200313-21telnet17:05:012
1200264993320,9cyclictest1513462-21fstime17:57:032
1200260993325,5cyclictest1396122-21cron17:35:011
1200260993225,5cyclictest1203686-21fschecks_time17:15:051
1200260993224,5cyclictest1201890-21systemd-run17:10:011
1200258993225,5cyclictest1241034-21spawn17:33:400
1200258993221,6cyclictest0-21swapper/017:20:120
1200264993126,2cyclictest0-21swapper/218:30:012
1200260993123,5cyclictest1200279-21aten_r2power_po17:05:011
1200260993022,5cyclictest2072296-21awk18:40:011
1200260993022,5cyclictest2072296-21awk18:40:011
1200258993023,5cyclictest674-21gdbus17:28:130
120026499298,5cyclictest351ktimers/218:25:012
120026499292,5cyclictest36-21ksoftirqd/218:30:112
1200264992921,6cyclictest1205098-21grep17:20:012
1200258992920,6cyclictest1201870-21cut17:10:010
1200260992821,4cyclictest2070751-21latency_hist18:35:041
1200258992817,8cyclictest0-21swapper/018:20:010
1200258992817,8cyclictest0-21swapper/018:20:010
1200258992719,5cyclictest2070459-21head18:30:220
1200260992618,5cyclictest1166-21mta-sts-daemon18:30:001
120025899256,15cyclictest12450irq/32-eth017:05:010
1200258992417,4cyclictest2067778-21munin-plugin-st18:25:000
120026999172,8cyclictest0-21swapper/317:55:123
120026999171,7cyclictest0-21swapper/318:20:153
120026999163,6cyclictest0-21swapper/318:00:103
120026999162,9cyclictest0-21swapper/317:50:233
120026999162,9cyclictest0-21swapper/317:40:153
120026999161,9cyclictest0-21swapper/318:10:263
120026999161,8cyclictest0-21swapper/317:50:053
120026999161,8cyclictest0-21swapper/317:50:053
120026999153,7cyclictest0-21swapper/318:05:593
120026999151,7cyclictest0-21swapper/317:35:143
120026999151,7cyclictest0-21swapper/317:20:093
120026999151,6cyclictest0-21swapper/318:35:143
120026999151,6cyclictest0-21swapper/318:35:143
120026999142,6cyclictest0-21swapper/317:20:013
120026999124,5cyclictest0-21swapper/317:25:263
120026999121,6cyclictest0-21swapper/317:10:143
120026999121,6cyclictest0-21swapper/317:05:123
120026999112,5cyclictest0-21swapper/317:30:143
120026999111,6cyclictest0-21swapper/318:15:133
120026999111,6cyclictest0-21swapper/318:15:133
120026999101,6cyclictest0-21swapper/318:30:043
120026999101,5cyclictest0-21swapper/318:30:023
12002699991,7cyclictest0-21swapper/317:05:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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