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2026-01-16 - 15:15
[ 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.

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 Fri Jan 16, 2026 07:55:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2703932997160,7cyclictest3515027-21sh06:10:061
2703932996136,22cyclictest3521748-21sh06:10:231
2703931996152,7cyclictest3514743-21od06:10:050
2703933995849,5cyclictest3513446-21looper06:10:012
2703932995832,22cyclictest2995809-21multi.sh05:42:481
2703933995747,7cyclictest2932649-21multi.sh05:39:562
2703933995747,7cyclictest2932649-21multi.sh05:39:562
2703932995744,9cyclictest2706878-21Run05:59:591
2703932995744,9cyclictest2706878-21Run05:59:591
2703931995747,6cyclictest0-21swapper/005:39:590
2703931995747,6cyclictest0-21swapper/005:39:590
2703931995626,27cyclictest3557071-21sh06:11:460
2703932995243,6cyclictest2703945-21systemctl05:05:011
2703931995230,19cyclictest2991325-21tee05:42:370
2703933995042,5cyclictest3522046-21rm06:10:242
2703931995036,11cyclictest2838199-21spawn05:35:000
2703931994936,9cyclictest0-21swapper/005:10:000
2703931994740,4cyclictest3590883-21debian-sa106:25:000
2703933994638,5cyclictest2963968-21sh05:41:282
2703931994618,26cyclictest3156799-21spawn06:03:350
2703932994538,5cyclictest3016606-21execl05:50:111
2703933994437,3cyclictest0-21swapper/205:50:022
2703933994437,3cyclictest0-21swapper/205:50:022
2703933994435,6cyclictest2896949-21latency_hist05:35:032
2703932994427,13cyclictest2710264-21kworker/u8:4+xprtiod05:49:491
2703932994427,13cyclictest2710264-21kworker/u8:4+xprtiod05:49:491
2703932994422,19cyclictest2892401-21spawn05:34:581
270393299441,13cyclictest2704203-21ps05:05:021
2703931994429,13cyclictest0-21swapper/005:50:010
2703931994429,13cyclictest0-21swapper/005:50:010
2703933994336,3cyclictest0-21swapper/205:05:012
2703932994321,19cyclictest3412897-21spawn06:04:221
2703932994316,24cyclictest2931599-21grep05:39:521
2703932994316,24cyclictest2931599-21grep05:39:521
2703931994317,23cyclictest3595494-21grep06:40:020
2703932994224,14cyclictest271ktimers/106:32:231
2703932994219,20cyclictest1165-21mta-sts-daemon05:20:281
2703931994221,18cyclictest3018449-21timerwakeupswit05:55:090
2703931994221,18cyclictest3018449-21timerwakeupswit05:55:090
2703932994112,2cyclictest0-21swapper/106:39:561
2703933994034,3cyclictest0-21swapper/206:34:582
270393399403,30cyclictest3595388-21munin-run06:40:012
2703932994031,6cyclictest2711506-21needreboot05:30:011
2703932994031,6cyclictest2711506-21needreboot05:30:011
270393299400,11cyclictest2705991-21unixbench_multi05:10:061
2703931994034,4cyclictest3016604-21execl05:50:130
2703931994018,19cyclictest0-21swapper/006:30:010
270393199401,14cyclictest2703947-21/usr/sbin/munin05:05:010
2703933993933,3cyclictest0-21swapper/205:50:112
2703933993930,6cyclictest3021393-21spawn06:02:502
2703933993831,3cyclictest0-21swapper/205:30:032
2703933993831,3cyclictest0-21swapper/205:30:032
270393299383,12cyclictest3589473-21latency_hist06:20:021
270393199381,12cyclictest3593759-21ntpq06:34:560
270393299373,28cyclictest3590948-21munin-run06:25:011
2703932993729,5cyclictest2708689-21mailstats05:20:021
2703932993715,19cyclictest0-21swapper/106:29:481
2703931993721,13cyclictest1168-21mta-sts-daemon05:27:580
2703931993721,13cyclictest1168-21mta-sts-daemon05:27:580
2703933993630,3cyclictest0-21swapper/205:15:012
2703933993629,3cyclictest0-21swapper/206:30:012
270393199368,13cyclictest2706918-21pwd05:15:010
2703931993630,4cyclictest3589272-21idleruntime-cro06:20:000
2703931993612,2cyclictest0-21swapper/005:24:510
2703933993524,8cyclictest3018821-21Run05:59:462
2703933993524,8cyclictest3018821-21Run05:59:462
270393199341,10cyclictest2708098-21forks05:19:500
270393399331,28cyclictest2709363-21fstime05:24:592
2703933993219,10cyclictest3589271-21idleruntime-cro06:20:002
2703933992924,2cyclictest0-21swapper/205:05:072
2703933992822,3cyclictest0-21swapper/205:20:012
2703933992616,6cyclictest1166-21mta-sts-daemon06:24:572
270393499224,10cyclictest0-21swapper/305:57:363
270393499224,10cyclictest0-21swapper/305:57:363
270393499193,10cyclictest0-21swapper/305:50:013
270393499193,10cyclictest0-21swapper/305:50:013
270393499184,9cyclictest0-21swapper/306:10:123
270393499181,9cyclictest0-21swapper/306:10:053
270393499181,9cyclictest0-21swapper/305:30:063
270393499173,8cyclictest0-21swapper/306:01:023
270393499162,9cyclictest0-21swapper/305:45:013
270393499162,7cyclictest0-21swapper/305:39:563
270393499162,7cyclictest0-21swapper/305:39:563
270393499153,7cyclictest0-21swapper/305:15:013
270393499152,8cyclictest0-21swapper/306:30:023
270393499152,7cyclictest0-21swapper/306:40:013
270393499144,6cyclictest0-21swapper/305:10:003
270393499142,7cyclictest0-21swapper/305:05:023
270393499141,8cyclictest0-21swapper/305:50:153
270393499134,6cyclictest0-21swapper/305:30:023
270393499134,6cyclictest0-21swapper/305:30:023
270393499132,7cyclictest0-21swapper/305:20:013
270393499131,7cyclictest0-21swapper/306:20:023
270393499131,7cyclictest0-21swapper/305:24:563
270393499111,8cyclictest0-21swapper/306:34:583
27039349991,5cyclictest0-21swapper/306:24:563
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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