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2026-02-22 - 13:09
[ 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 #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 Sun Feb 22, 2026 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1620629567,8sleep20-21swapper/219:07:332
1619028474,6sleep00-21swapper/019:07:220
1611127966,9sleep30-21swapper/319:06:203
1623527659,13sleep10-21swapper/119:07:561
122672610,0sleep30-21swapper/300:04:533
1648999270,26cyclictest0-21swapper/222:21:392
1648999270,23cyclictest0-21swapper/222:51:202
1648699263,2cyclictest25679-21memory22:55:201
1648999250,24cyclictest0-21swapper/223:38:052
1648999250,24cyclictest0-21swapper/223:38:052
1648999250,18cyclictest0-21swapper/223:59:312
1648999240,21cyclictest0-21swapper/222:58:112
16486992416,0cyclictest0-21swapper/100:29:291
1649099221,19cyclictest9993-21kworker/3:121:50:003
1648999220,1cyclictest0-21swapper/221:28:252
16486992221,1cyclictest25-21ksoftirqd/122:53:021
16486992217,1cyclictest25-21ksoftirqd/121:40:041
1648699220,21cyclictest0-21swapper/121:39:031
163722210,1sleep123394-21kworker/1:123:47:311
16490992017,2cyclictest9993-21kworker/3:122:21:123
1648999205,14cyclictest0-21swapper/222:07:082
1648999200,20cyclictest0-21swapper/223:45:222
1648999200,20cyclictest0-21swapper/221:39:032
1648999200,1cyclictest0-21swapper/200:20:412
16490991917,1cyclictest9993-21kworker/3:123:51:423
1649099190,18cyclictest9993-21kworker/3:123:30:023
1648999190,17cyclictest0-21swapper/223:42:372
16490991817,1cyclictest9993-21kworker/3:123:20:323
16490991817,1cyclictest9993-21kworker/3:123:17:423
1649099181,3cyclictest0-21swapper/322:45:353
1648999180,16cyclictest0-21swapper/200:05:582
1649099179,7cyclictest16316-21awk22:30:253
1649099173,12cyclictest0-21swapper/322:10:143
16490991716,1cyclictest9993-21kworker/3:123:57:013
16490991716,1cyclictest9993-21kworker/3:122:56:223
16490991715,1cyclictest9993-21kworker/3:122:26:223
1648999170,1cyclictest0-21swapper/200:33:402
1648999170,17cyclictest0-21swapper/223:23:222
16486991713,3cyclictest8866-21diskmemload23:51:021
1648499175,6cyclictest17514-21idleruntime-cro21:15:000
1648499172,10cyclictest13882-21cron00:24:590
1648499170,2cyclictest0-21swapper/022:46:290
1648499170,15cyclictest0-21swapper/023:15:340
16490991615,1cyclictest9993-21kworker/3:123:03:113
16490991615,1cyclictest9993-21kworker/3:122:19:023
16490991615,1cyclictest9993-21kworker/3:122:19:023
16490991614,1cyclictest0-21swapper/300:22:123
1649099160,14cyclictest0-21swapper/321:32:543
1649099160,14cyclictest0-21swapper/320:25:133
1648999160,16cyclictest0-21swapper/221:24:262
1648699162,1cyclictest8866-21diskmemload22:06:251
1648699160,2cyclictest0-21swapper/122:48:591
1648699160,1cyclictest0-21swapper/120:55:001
1648499162,7cyclictest19823-21munin-run20:25:000
1648499160,2cyclictest141rcu_preempt22:30:460
1649099155,6cyclictest20609-21apache_volume21:55:143
1649099153,7cyclictest12952-21munin-run22:10:003
16490991514,1cyclictest9993-21kworker/3:122:51:513
16490991514,1cyclictest39-21ksoftirqd/300:33:283
16490991514,1cyclictest0-21swapper/322:35:143
1649099150,2cyclictest141rcu_preempt21:36:383
16489991510,3cyclictest1355-21ls23:20:012
1648999150,15cyclictest0-21swapper/222:29:342
1648699150,1cyclictest141rcu_preempt22:14:011
1648699150,1cyclictest0-21swapper/100:15:181
1648699150,15cyclictest0-21swapper/121:59:031
1648699150,14cyclictest8866-21diskmemload21:53:051
1648499156,8cyclictest17417-21munin-run20:19:590
1648499154,5cyclictest0-21swapper/022:10:000
16484991511,4cyclictest8495-21apache221:56:400
1648499150,1cyclictest0-21swapper/000:16:380
1649099145,5cyclictest0-21swapper/323:10:153
1649099141,5cyclictest23412-21timerandwakeup00:10:263
16490991413,1cyclictest9993-21kworker/3:122:42:013
16490991411,2cyclictest18490-21kworker/3:000:35:023
1648999149,3cyclictest412-21wc22:40:222
1648999142,11cyclictest20083-21ssh23:50:132
16489991413,1cyclictest0-21swapper/222:46:022
16489991411,2cyclictest5218-21rm00:00:172
16489991410,3cyclictest8359-21munin-run23:04:592
1648999140,14cyclictest0-21swapper/222:18:082
1648999140,14cyclictest0-21swapper/222:18:082
1648999140,14cyclictest0-21swapper/221:43:262
1648999140,13cyclictest0-21swapper/223:30:402
1648999140,12cyclictest18485-21head20:20:162
1648999140,0cyclictest0-21swapper/219:55:222
16486991413,1cyclictest0-21swapper/123:06:271
1648699141,13cyclictest27386-21switchtime23:15:251
1648699140,1cyclictest0-21swapper/121:47:011
1648699140,14cyclictest0-21swapper/123:11:201
1648699140,13cyclictest0-21swapper/123:24:171
1648699140,0cyclictest0-21swapper/100:20:161
1648499146,3cyclictest29835-21/usr/sbin/munin23:55:210
1648499141,6cyclictest0-21swapper/021:45:220
16484991414,0cyclictest0-21swapper/023:28:130
16484991411,2cyclictest26426-21grep20:35:250
16484991410,3cyclictest32157-21sed00:35:180
16484991410,3cyclictest22671-21tr20:30:150
16484991410,3cyclictest20711-21grep19:15:260
16484991410,2cyclictest3297-21grep23:40:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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