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2026-02-11 - 23:34
[ 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 792 highest latencies:
System rack2slot7s.osadl.org (updated Wed Feb 11, 2026 07:55:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1683245996724,36cyclictest2500697-21sh06:10:250
1683245996724,36cyclictest2500697-21sh06:10:250
1683246996251,7cyclictest2501940-21sh06:10:291
1683246996251,7cyclictest2501940-21sh06:10:291
1683247996138,20cyclictest1993388-21execl05:50:022
1683247995935,21cyclictest2547860-21sh06:12:222
1683247995935,21cyclictest2547860-21sh06:12:222
1683245995940,13cyclictest12450irq/32-eth005:40:160
1683247995842,13cyclictest1918981-21od05:40:272
1683247995730,5cyclictest2482447-21sh06:09:382
1683245995531,22cyclictest1993913-21execl05:50:170
1683247995328,3cyclictest0-21swapper/205:50:172
1683247995326,4cyclictest0-21swapper/205:20:162
1683246995344,4cyclictest0-21swapper/105:50:011
1683246995243,5cyclictest1993911-21execl05:50:181
1683245995226,23cyclictest2491327-21sh06:10:010
1683246995143,5cyclictest1913656-21sh05:40:001
1683247995024,6cyclictest1685417-21latency05:10:122
1683246994930,15cyclictest2405267-21syscall06:05:051
1683246994837,7cyclictest1925306-21sh05:40:421
1683245994825,20cyclictest2009518-21spawn06:02:520
1683247994739,4cyclictest1913633-21grep05:40:002
1683246994638,5cyclictest1166-21mta-sts-daemon05:10:201
1683245994521,2cyclictest0-21swapper/005:56:130
1683245994521,21cyclictest0-21swapper/006:40:000
1683245994423,18cyclictest1993475-21ls05:50:020
1683245994416,7cyclictest564-21dbus-daemon05:10:120
1683246994033,4cyclictest1690936-21grep05:25:251
168324599405,14cyclictest1668894-21kworker/u8:4+rpciod05:24:110
1683245994016,2cyclictest0-21swapper/006:30:000
1683245994016,2cyclictest0-21swapper/006:30:000
1683245994015,5cyclictest1892577-21tee05:38:110
1683245993915,3cyclictest2569284-21kworker/u8:6-xprtiod06:35:020
1683246993818,15cyclictest271ktimers/106:30:151
1683247993628,5cyclictest2569289-21systemd-run06:35:012
1683247993628,4cyclictest2268146-21spawn06:04:172
1683246993629,4cyclictest1879462-21latency_hist05:35:021
1683246993629,4cyclictest1879462-21latency_hist05:35:021
1683246993628,4cyclictest2145731-21spawn06:03:261
1683246993627,4cyclictest0-21swapper/106:35:111
1683247993527,5cyclictest2567679-21unixbench_multi06:25:262
1683247993527,5cyclictest2567679-21unixbench_multi06:25:262
168324699351,4cyclictest1686764-21dhry2reg05:15:141
168324699351,28cyclictest1688810-21execl05:20:171
1683247993426,5cyclictest1687944-21whetstone-doubl05:20:012
1683246993422,9cyclictest1995931-21ntp_kernel_pll_05:55:171
1683245993428,4cyclictest1691147-21latency_hist05:30:020
1683245993422,9cyclictest1879385-21latency_hist05:35:030
1683245993422,9cyclictest1879385-21latency_hist05:35:030
1683247993224,5cyclictest2570804-21systemd-run06:40:012
1683247993119,8cyclictest1996511-21fstime05:56:142
1683246993125,3cyclictest0-21swapper/106:15:081
1683246993125,3cyclictest0-21swapper/106:15:081
1683246993121,6cyclictest1684740-21systemd-run05:10:011
1683247992918,8cyclictest2566433-21latency_hist06:25:022
1683247992918,8cyclictest2566433-21latency_hist06:25:022
1683246992821,4cyclictest2567430-21switchtime06:25:251
1683246992821,4cyclictest2567430-21switchtime06:25:251
168324599284,18cyclictest1165-21mta-sts-daemon06:15:200
168324599284,18cyclictest1165-21mta-sts-daemon06:15:200
1683247992722,2cyclictest0-21swapper/205:35:012
1683247992722,2cyclictest0-21swapper/205:35:012
1683247992720,4cyclictest1690384-21ntp_kernel_err05:25:122
168324699278,14cyclictest1168-21mta-sts-daemon06:20:201
168324699278,14cyclictest1168-21mta-sts-daemon06:20:201
1683245992621,3cyclictest1684977-21head05:10:040
1683247992518,3cyclictest0-21swapper/205:05:152
1683246992517,5cyclictest1683257-21systemd-run05:05:011
1683245992519,4cyclictest2566276-21sh06:25:000
1683245992519,4cyclictest2566276-21sh06:25:000
1683245992519,3cyclictest0-21swapper/005:20:010
1683245992518,5cyclictest674-21gdbus05:05:010
1683247992412,10cyclictest351ktimers/206:15:162
1683247992412,10cyclictest351ktimers/206:15:162
1683247992317,3cyclictest0-21swapper/205:05:022
168324899182,9cyclictest0-21swapper/305:40:173
168324899169,5cyclictest0-21swapper/306:10:293
168324899169,5cyclictest0-21swapper/306:10:293
168324899154,5cyclictest0-21swapper/306:00:153
168324899152,8cyclictest0-21swapper/305:55:593
168324899152,8cyclictest0-21swapper/305:50:153
168324899146,5cyclictest0-21swapper/305:25:143
168324899142,5cyclictest0-21swapper/305:30:133
168324899142,5cyclictest0-21swapper/305:30:133
168324899141,7cyclictest0-21swapper/306:05:153
168324899141,6cyclictest0-21swapper/306:30:163
168324899141,6cyclictest0-21swapper/306:15:143
168324899141,6cyclictest0-21swapper/306:15:143
168324899141,6cyclictest0-21swapper/305:15:163
168324899141,5cyclictest0-21swapper/305:05:143
168324899133,6cyclictest0-21swapper/305:45:213
168324899124,4cyclictest0-21swapper/305:10:153
168324899113,4cyclictest0-21swapper/306:25:183
168324899113,4cyclictest0-21swapper/306:25:183
168324899112,5cyclictest0-21swapper/305:40:023
168324899111,7cyclictest421rcuc/305:05:013
168324899111,6cyclictest0-21swapper/306:35:103
168324899111,6cyclictest0-21swapper/306:20:213
168324899111,6cyclictest0-21swapper/306:20:213
168324899111,6cyclictest0-21swapper/305:20:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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