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2026-01-20 - 06:51
[ 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 #3, slot #3

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 rack3slot3s.osadl.org (updated Tue Jan 20, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2912350212651,70sleep30-21swapper/319:09:103
291213828669,10sleep20-21swapper/219:06:292
290791528352,10sleep10-21swapper/119:05:151
291218727754,6sleep00-21swapper/019:07:070
2912542992318,2cyclictest0-21swapper/300:35:003
2912542992219,1cyclictest0-21swapper/322:45:253
291254299219,3cyclictest0-21swapper/321:22:453
2912542992118,1cyclictest0-21swapper/321:25:133
2912542992118,1cyclictest0-21swapper/320:04:593
291254299207,6cyclictest3249252-21taskset00:25:163
2912542992017,1cyclictest0-21swapper/300:35:233
2912542992017,1cyclictest0-21swapper/300:35:233
291254299201,15cyclictest3013409-21chrt20:40:193
291254299201,15cyclictest0-21swapper/323:23:433
291254299200,17cyclictest0-21swapper/321:45:483
291254299197,1cyclictest0-21swapper/322:10:163
291254299192,11cyclictest2962300-21taskset19:55:103
2912542991916,1cyclictest0-21swapper/322:50:173
2912542991915,2cyclictest0-21swapper/320:45:163
291254299191,14cyclictest3224037-21taskset00:00:223
291254299191,14cyclictest2987940-21taskset20:17:113
291254299191,14cyclictest0-21swapper/320:25:133
291254299191,14cyclictest0-21swapper/319:25:323
291254299190,15cyclictest0-21swapper/322:03:033
2912542991815,1cyclictest0-21swapper/323:40:163
2912542991815,1cyclictest0-21swapper/321:15:183
2912542991815,1cyclictest0-21swapper/319:30:163
2912542991815,1cyclictest0-21swapper/300:10:163
2912542991812,3cyclictest0-21swapper/300:07:483
291254299181,14cyclictest3093135-21chrt21:56:183
291254299181,13cyclictest0-21swapper/323:16:103
291254299181,13cyclictest0-21swapper/323:00:213
30730372171,7sleep23074666-21kthreadcore21:40:142
2912542991715,1cyclictest0-21swapper/321:35:163
2912542991714,1cyclictest0-21swapper/322:15:153
2912542991714,1cyclictest0-21swapper/322:05:243
2912542991714,1cyclictest0-21swapper/321:10:173
2912542991714,1cyclictest0-21swapper/300:20:183
2912542991713,2cyclictest0-21swapper/323:25:173
2912542991713,2cyclictest0-21swapper/322:35:163
2912542991713,2cyclictest0-21swapper/321:00:163
2912542991713,2cyclictest0-21swapper/320:50:163
2912542991711,3cyclictest2956795-21sleep19:50:013
291254299171,12cyclictest0-21swapper/322:40:123
291254299170,13cyclictest0-21swapper/322:20:103
29166232161,10sleep02916711-21ntpq19:10:180
291254299161,9cyclictest3193265-21taskset23:35:063
291254299161,9cyclictest2940998-21taskset19:35:053
2912542991614,1cyclictest0-21swapper/319:40:133
2912542991613,1cyclictest0-21swapper/323:05:163
2912542991613,1cyclictest0-21swapper/321:30:193
2912542991613,1cyclictest0-21swapper/320:35:143
291254299161,12cyclictest3219610-21sleep00:00:013
291254299161,12cyclictest3214352-21turbostat23:55:003
291254299161,12cyclictest0-21swapper/322:58:583
291254299161,12cyclictest0-21swapper/319:10:133
291254299161,11cyclictest3125274-21chrt22:30:093
291254299161,11cyclictest0-21swapper/320:20:113
291254299161,10cyclictest3188026-21chrt23:30:013
291254299161,10cyclictest3077364-21taskset21:44:243
291254299160,13cyclictest0-21swapper/321:05:183
291254299160,13cyclictest0-21swapper/320:55:163
291254299160,10cyclictest2930068-21taskset19:22:243
291254299160,10cyclictest2930068-21taskset19:22:233
29859072150,4sleep2421rcuc/220:15:172
29831892152,8sleep02983208-21apt-get20:15:110
29240552151,10sleep22924103-21/usr/sbin/munin19:15:222
291254299151,9cyclictest3124788-21taskset22:27:253
291254299151,9cyclictest3087973-21taskset21:52:253
2912542991512,2cyclictest0-21swapper/320:10:223
2912542991512,1cyclictest0-21swapper/300:15:163
291254299151,11cyclictest0-21swapper/323:45:123
291254299151,11cyclictest0-21swapper/320:05:173
291254299150,12cyclictest0-21swapper/323:10:263
291254299150,12cyclictest0-21swapper/319:50:133
291254299150,12cyclictest0-21swapper/319:15:213
291254299150,11cyclictest0-21swapper/320:30:183
31147782142,7sleep23114797-21apt-get22:20:112
30204382141,8sleep13020925-21cut20:50:161
31257612131,8sleep23125253-21/usr/sbin/munin22:30:132
30994902131,8sleep13099628-21grep22:05:151
30819722131,4sleep03082182-21grep21:45:260
30301532131,8sleep03030229-21wc21:00:010
29468462131,8sleep02948455-21cut19:40:160
29204822130,8sleep02920906-21cut19:15:160
32469692126,2sleep10-21swapper/100:25:141
32364942121,6sleep03237834-21kthreadcore00:15:150
31892382121,2sleep20-21swapper/223:30:172
31711162120,8sleep23171174-21ntp_offset23:10:212
31452602120,8sleep03145359-21cat22:45:260
30831972121,6sleep03083216-21apt-get21:50:110
30399262121,7sleep23035683-21/usr/sbin/munin21:05:232
30035672120,1sleep10-21swapper/120:30:361
29575852125,3sleep12958360-21kthreadcore19:50:151
29570462120,1sleep20-21swapper/219:50:122
32412282111,6sleep03241406-21expr00:20:130
32291262111,5sleep03229172-21ntpq00:05:210
32262972114,3sleep13227202-21kthreadcore00:05:191
31988062110,2sleep20-21swapper/223:40:102
31781382111,6sleep03179102-21kthreadcore23:20:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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