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2026-01-23 - 18:29
[ 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 #7, 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 rack7slot7s.osadl.org (updated Fri Jan 23, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1936529678,11sleep30-21swapper/307:05:233
2029129480,9sleep20-21swapper/207:09:562
1958929470,18sleep10-21swapper/107:05:251
1995028774,9sleep00-21swapper/007:05:320
20388992826,1cyclictest13035-21diskmemload12:03:553
20388992722,4cyclictest13035-21diskmemload09:49:573
2038599260,25cyclictest0-21swapper/209:42:492
2038599250,25cyclictest0-21swapper/210:06:442
2038299240,2cyclictest28457-21awk11:20:261
2038299231,22cyclictest13035-21diskmemload09:19:391
2038899227,13cyclictest0-21swapper/310:10:143
20388992219,2cyclictest13035-21diskmemload10:03:213
20378992221,1cyclictest0-21swapper/009:28:470
20378992220,1cyclictest0-21swapper/009:56:260
2038599210,21cyclictest0-21swapper/210:17:342
2038299210,21cyclictest0-21swapper/108:05:211
2038599200,2cyclictest0-21swapper/209:54:562
2038299200,0cyclictest0-21swapper/109:24:201
2038899199,9cyclictest0-21swapper/309:57:023
2038899197,7cyclictest0-21swapper/312:05:493
2038899192,11cyclictest0-21swapper/309:35:393
20388991915,2cyclictest0-21swapper/310:19:353
20388991910,7cyclictest0-21swapper/309:24:263
20385991918,1cyclictest0-21swapper/209:28:302
20385991918,0cyclictest0-21swapper/209:35:112
2038599190,1cyclictest0-21swapper/209:10:452
2038599190,19cyclictest0-21swapper/212:19:512
2038599190,19cyclictest0-21swapper/210:11:542
2038299190,1cyclictest0-21swapper/109:37:591
2037899190,1cyclictest141rcu_preempt09:12:530
2038899183,13cyclictest0-21swapper/309:33:093
20388991816,1cyclictest13035-21diskmemload09:11:563
2038599180,17cyclictest0-21swapper/208:00:132
2038299180,2cyclictest0-21swapper/109:30:311
2038899178,6cyclictest0-21swapper/310:05:123
2038899174,9cyclictest0-21swapper/309:25:003
20388991713,3cyclictest7704-21basename10:25:003
20385991717,0cyclictest0-21swapper/212:21:202
20382991712,4cyclictest0-21swapper/109:59:211
2037899176,6cyclictest19199-21munin-run08:15:000
2037899175,6cyclictest14859-21munin-run10:50:000
2038899165,5cyclictest0-21swapper/309:43:343
20388991611,4cyclictest15730-21wc08:05:203
20388991610,5cyclictest2850-21needreboot12:15:193
2038599160,16cyclictest0-21swapper/209:57:442
2038899156,8cyclictest0-21swapper/309:53:373
2038899155,8cyclictest0-21swapper/311:46:323
20388991514,1cyclictest0-21swapper/312:30:513
20388991511,3cyclictest32462-21wc08:40:203
20388991511,3cyclictest0-21swapper/309:15:143
20382991513,2cyclictest25-21ksoftirqd/110:23:141
20378991514,1cyclictest0-21swapper/011:12:070
2037899150,0cyclictest0-21swapper/009:49:400
2038899149,3cyclictest26735-21grep11:20:133
2038899149,3cyclictest13035-21diskmemload11:16:543
2038899145,9cyclictest0-21swapper/312:21:523
2038899143,7cyclictest0-21swapper/311:40:173
20388991411,2cyclictest13035-21diskmemload12:10:073
20388991410,3cyclictest16480-21cut10:56:323
2038899140,8cyclictest0-21swapper/311:51:203
20385991413,1cyclictest0-21swapper/210:22:562
2038299149,4cyclictest25-21ksoftirqd/112:39:441
2038299142,7cyclictest21300-21seq09:53:051
20382991412,1cyclictest30415-21apt-get07:30:121
20382991412,1cyclictest25-21ksoftirqd/111:11:361
20382991410,3cyclictest25803-21ls08:25:271
2038899139,3cyclictest32119-21head07:30:243
2038899139,3cyclictest22033-21wc07:10:253
2038899139,1cyclictest0-21swapper/307:55:213
2038899138,4cyclictest0-21swapper/309:00:123
2038899133,9cyclictest14813-21ssh12:39:133
20388991312,1cyclictest0-21swapper/311:11:003
20388991310,2cyclictest23493-21grep08:20:263
20388991310,2cyclictest17858-21grep08:10:173
20388991310,2cyclictest0-21swapper/310:55:003
20385991310,2cyclictest32030-21grep07:30:242
20385991310,2cyclictest27383-21grep08:30:162
20385991310,2cyclictest26322-21latency_hist11:20:002
20385991310,2cyclictest12327-21grep11:45:132
2038599130,12cyclictest7860-21grep09:45:142
2038599130,12cyclictest28399-21grep12:05:242
2038299135,3cyclictest13035-21diskmemload12:10:201
20382991312,1cyclictest0-21swapper/109:46:141
20382991311,1cyclictest25-21ksoftirqd/111:02:221
20382991310,2cyclictest9763-21grep12:29:091
20382991310,2cyclictest31921-21grep11:25:261
20382991310,2cyclictest17765-21grep10:58:451
2038299130,1cyclictest0-21swapper/110:09:391
2038299130,13cyclictest0-21swapper/109:10:511
2038299130,12cyclictest12555-21grep08:00:141
2037899139,3cyclictest7225-21tail08:55:180
2037899139,3cyclictest4470-21grep08:50:160
2037899139,3cyclictest10107-21tr07:55:140
2037899136,1cyclictest21604-21idleruntime-cro08:20:000
2037899134,3cyclictest0-21swapper/010:00:240
20378991312,1cyclictest0-21swapper/010:11:380
20378991310,2cyclictest4725-21latency_hist11:35:000
20378991310,2cyclictest32422-21grep09:40:160
20378991310,2cyclictest20446-21wc11:55:190
20378991310,2cyclictest15500-21cron10:55:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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