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2026-02-08 - 19:27
[ 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 Sun Feb 08, 2026 07:55:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2932642996354,6cyclictest3752799-21sh06:10:300
2932643996253,6cyclictest3752354-21sh06:10:291
2932642995942,11cyclictest12450irq/32-eth006:25:160
2932647995648,5cyclictest3751786-21grep06:10:272
2932647995648,4cyclictest3741677-21od06:10:012
2932643995244,5cyclictest3231371-21sh05:43:041
2932642995246,3cyclictest3175939-21sh05:40:430
2932642995042,5cyclictest0-21swapper/005:50:240
2932642995041,7cyclictest2932643-21cyclictest05:05:010
2932643994940,6cyclictest3742104-21sh06:10:021
2932643994938,8cyclictest564-21dbus-daemon05:55:011
2932642994939,7cyclictest3247188-21Run05:59:080
2932647994739,5cyclictest3187811-21sh05:41:122
2932642994739,5cyclictest3743045-21sh06:10:050
2932642994731,13cyclictest3243946-21execl05:50:040
2932643994636,7cyclictest3415823-21spawn06:03:311
2932642994636,4cyclictest0-21swapper/005:28:210
2932647994537,5cyclictest3819805-21latency_hist06:30:032
2932643994536,6cyclictest3821219-21true06:35:011
2932643994536,6cyclictest3821219-21true06:35:011
2932643994436,5cyclictest3243946-21execl05:50:021
2932647994335,5cyclictest3163933-21rm05:40:022
2932647994233,6cyclictest3244470-21execl05:50:172
2932647994135,3cyclictest0-21swapper/205:20:122
2932647994134,5cyclictest0-21swapper/206:40:002
2932647994134,4cyclictest2937313-21whetstone-doubl05:20:022
2932643994133,5cyclictest2939004-21awk05:25:001
2932642994133,6cyclictest3163868-21aten2.4-expect05:40:020
2932647994032,5cyclictest2935640-21tail05:15:012
2932647994032,5cyclictest2935640-21tail05:15:012
293264799402,33cyclictest3249062-21spawn06:03:212
2932643994031,6cyclictest3822874-21systemd-run06:40:011
2932643994030,7cyclictest3129621-21munin-plugin-st05:35:011
2932642994032,5cyclictest3598513-21spawn06:04:140
293264299402,28cyclictest2938233-21execl05:20:120
2932647993929,7cyclictest3067119-21spawn05:35:012
2932643993933,3cyclictest0-21swapper/106:25:011
2932643993931,5cyclictest2934118-21systemd-run05:10:011
2932647993830,5cyclictest3818126-21cron06:25:012
2932643993832,3cyclictest0-21swapper/105:40:011
2932643993829,5cyclictest3816614-21cron06:20:011
2932642993821,13cyclictest151ktimers/006:20:140
2932647993728,5cyclictest3243954-21cron05:50:012
2932642993728,7cyclictest0-21swapper/006:40:010
2932647993625,8cyclictest2939777-21ntp_kernel_pll_05:25:112
2932643993628,5cyclictest2932749-21latency_hist05:05:021
2932643993528,4cyclictest3819737-21aten_r2power_en06:30:021
2932643993527,5cyclictest2940553-21latency_hist05:30:021
2932643993525,8cyclictest3247069-21fstime05:56:491
2932647993322,9cyclictest3820513-21ntp_kernel_pll_06:30:152
2932647993322,9cyclictest3820513-21ntp_kernel_pll_06:30:152
2932647993321,6cyclictest3247110-21fstime05:57:522
2932643993226,3cyclictest0-21swapper/105:15:011
2932643993226,3cyclictest0-21swapper/105:15:011
293264799308,16cyclictest2933088-21kworker/u8:14+nfsiod05:05:122
2932647993023,4cyclictest2932988-21latency_hist05:05:032
2932642992925,2cyclictest0-21swapper/005:20:010
2932642992823,3cyclictest3129625-21munin-plugin-st05:35:010
2932642992822,4cyclictest2935629-21munin-run05:15:010
2932642992822,4cyclictest2935629-21munin-run05:15:010
2932642992822,3cyclictest0-21swapper/006:35:010
2932642992822,3cyclictest0-21swapper/006:35:010
293264799276,16cyclictest714-21gmain06:15:162
2932643992719,5cyclictest2936992-21sed05:15:221
2932642992420,2cyclictest2934113-21kworker/u8:17+xprtiod05:10:010
2932642992418,3cyclictest0-21swapper/006:20:010
293265199172,9cyclictest0-21swapper/305:50:203
293265199172,7cyclictest0-21swapper/305:58:263
293265199162,9cyclictest0-21swapper/306:10:243
293265199151,6cyclictest0-21swapper/305:25:093
293265199143,6cyclictest0-21swapper/306:00:043
293265199142,7cyclictest0-21swapper/306:25:113
293265199142,7cyclictest0-21swapper/305:40:123
293265199142,6cyclictest0-21swapper/305:20:163
293265199142,4cyclictest0-21swapper/306:15:113
293265199141,3cyclictest0-21swapper/305:10:133
293265199141,3cyclictest0-21swapper/305:10:133
293265199140,6cyclictest0-21swapper/306:20:143
293265199131,7cyclictest0-21swapper/306:08:133
293265199131,6cyclictest0-21swapper/305:35:163
293265199123,4cyclictest0-21swapper/305:45:133
293265199122,7cyclictest0-21swapper/306:40:013
293265199122,4cyclictest0-21swapper/306:30:143
293265199122,4cyclictest0-21swapper/306:30:143
293265199111,6cyclictest0-21swapper/305:20:013
293265199102,5cyclictest0-21swapper/305:30:033
293265199101,5cyclictest0-21swapper/305:05:073
29326519981,4cyclictest0-21swapper/305:05:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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