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2026-02-25 - 04:09
[ 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 Tue Feb 24, 2026 19:55:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284185998169,9cyclictest594100-21execl17:50:320
284185998150,6cyclictest1105156-21sh18:10:340
284185997257,10cyclictest597016-21Run17:57:460
284185997054,12cyclictest519644-21sh17:40:240
284187995938,16cyclictest1167-21mta-sts-daemon17:27:572
284185995846,10cyclictest12450irq/32-eth017:20:230
284186995747,6cyclictest1103608-21tee18:10:291
284186995648,5cyclictest520407-21od17:40:271
284187995546,5cyclictest1104460-21multi.sh18:10:312
284185995041,6cyclictest514857-21tee17:40:010
284187994938,8cyclictest519816-21multi.sh17:40:252
284185994936,9cyclictest12450irq/32-eth018:00:280
284187994739,5cyclictest514831-21wc17:40:012
284187994738,5cyclictest1092561-21expr18:10:022
284187994738,5cyclictest1092561-21expr18:10:022
284186994730,6cyclictest1074931-21sh18:09:191
284186994730,6cyclictest1074931-21sh18:09:191
284185994732,13cyclictest1059929-21sort18:08:420
284185994732,13cyclictest1059929-21sort18:08:420
284187994637,6cyclictest608480-21spawn18:02:522
284186994335,5cyclictest594101-21execl17:50:241
284186994234,5cyclictest1166266-21idleruntime-cro18:20:011
284185994234,5cyclictest564-21dbus-daemon17:05:200
284187994133,5cyclictest593853-21execl17:50:022
284186994132,6cyclictest593853-21execl17:50:021
284187994033,3cyclictest0-21swapper/217:50:282
284186994031,6cyclictest636-21in:imuxsock18:30:011
284187993931,5cyclictest3606321-21systemd-journal18:35:012
284186993931,5cyclictest564-21dbus-daemon17:25:011
284186993812,16cyclictest271ktimers/118:35:261
284185993826,8cyclictest280261-21kworker/u8:4+xprtiod17:28:460
28418799368,3cyclictest0-21swapper/218:35:262
284187993628,5cyclictest287162-21cron17:15:012
284186993629,4cyclictest983118-21spawn18:04:211
284186993628,5cyclictest597039-21Run17:58:281
284186993628,5cyclictest514781-21cron17:40:011
284185993630,3cyclictest0-21swapper/017:50:020
284186993526,6cyclictest3606335-21systemd-logind17:05:011
28418799344,23cyclictest577-21mta-sts-daemon17:15:272
284187993326,4cyclictest480328-21cron17:35:012
284187993322,8cyclictest597001-21fstime17:57:212
28418799331,6cyclictest171rcu_preempt18:15:202
28418699331,27cyclictest292949-21pipe17:30:241
284187993221,8cyclictest1168666-21ntp_kernel_pll_18:25:242
28418799320,25cyclictest289149-21execl17:20:242
284185993227,3cyclictest288943-21kworker/u8:12+rpciod18:20:010
284185993219,6cyclictest151ktimers/017:15:260
284187993123,5cyclictest285566-21unixbench_multi17:05:332
284186993126,2cyclictest0-21swapper/118:35:011
284186993126,2cyclictest0-21swapper/117:15:011
284186993123,5cyclictest291871-21unixbench_multi17:25:341
284185993125,4cyclictest1167659-21unixbench_multi18:20:330
284185993124,3cyclictest151ktimers/018:25:210
284185993117,11cyclictest0-21swapper/017:35:010
284186993022,5cyclictest284701-21fschecks_time17:05:141
284187992920,6cyclictest1167636-21unixbench_multi18:20:332
284186992823,2cyclictest0-21swapper/118:25:011
284187992721,3cyclictest0-21swapper/217:05:012
284186992719,5cyclictest288886-21whetstone-doubl17:20:011
284185992721,4cyclictest0-21swapper/017:05:010
28418599271,5cyclictest0-21swapper/018:35:210
284185992713,11cyclictest0-21swapper/018:30:370
284185992417,5cyclictest1165-21mta-sts-daemon17:10:260
28418899183,9cyclictest0-21swapper/318:10:343
28418899181,6cyclictest0-21swapper/317:15:263
28418899172,9cyclictest0-21swapper/317:40:293
28418899171,7cyclictest0-21swapper/317:45:203
28418899171,5cyclictest0-21swapper/317:10:243
28418899166,8cyclictest0-21swapper/317:50:043
28418899161,6cyclictest0-21swapper/318:35:283
28418899161,4cyclictest0-21swapper/318:09:143
28418899161,4cyclictest0-21swapper/318:09:143
28418899153,7cyclictest0-21swapper/317:56:153
28418899142,5cyclictest0-21swapper/317:05:203
28418899141,6cyclictest0-21swapper/317:30:243
28418899132,6cyclictest0-21swapper/317:40:013
28418899131,8cyclictest0-21swapper/318:04:193
28418899131,6cyclictest0-21swapper/318:30:293
28418899131,5cyclictest0-21swapper/318:25:233
28418899112,5cyclictest0-21swapper/317:25:243
28418899111,6cyclictest0-21swapper/318:20:253
28418899111,6cyclictest0-21swapper/317:20:233
28418899101,5cyclictest0-21swapper/318:15:153
2841889971,5cyclictest0-21swapper/317:05:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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