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2026-02-14 - 11:53
[ 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 Sat Feb 14, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27108210274,9sleep20-21swapper/219:07:152
2727629242,46sleep10-21swapper/119:09:271
2703928674,8sleep00-21swapper/019:06:210
2712927966,9sleep30-21swapper/319:07:323
27402993329,1cyclictest13-21ksoftirqd/023:53:250
2740299300,1cyclictest0-21swapper/000:00:450
2740299300,1cyclictest0-21swapper/000:00:450
2740999290,29cyclictest0-21swapper/222:38:342
2740799283,24cyclictest31699-21sed23:50:261
2740299270,0cyclictest0-21swapper/000:21:450
27402992621,3cyclictest13-21ksoftirqd/021:39:480
2740999250,24cyclictest0-21swapper/200:28:102
2740999240,24cyclictest0-21swapper/222:42:112
2740999240,24cyclictest0-21swapper/221:59:452
2740999240,23cyclictest0-21swapper/200:38:482
2740799240,24cyclictest0-21swapper/100:30:401
2741299232,20cyclictest18186-21/usr/sbin/munin22:45:213
2740299239,2cyclictest13-21ksoftirqd/022:54:420
2740299230,15cyclictest0-21swapper/023:49:420
2740299230,0cyclictest0-21swapper/021:46:480
2740799223,6cyclictest0-21swapper/122:35:131
27407992220,1cyclictest31368-21expr21:35:171
27402992220,2cyclictest13-21ksoftirqd/022:01:500
27402992217,2cyclictest13-21ksoftirqd/022:17:030
27402992217,2cyclictest13-21ksoftirqd/022:17:030
2740299220,1cyclictest0-21swapper/023:55:400
2740299220,1cyclictest0-21swapper/023:33:430
27407992118,2cyclictest25-21ksoftirqd/123:10:001
2741299205,2cyclictest26335-21grep22:10:253
27412992017,3cyclictest39-21ksoftirqd/321:43:333
2741299201,16cyclictest0-21swapper/319:45:133
27402992019,1cyclictest0-21swapper/000:38:440
27402992017,3cyclictest13-21ksoftirqd/021:53:090
27402992016,4cyclictest13-21ksoftirqd/000:14:310
2740299200,0cyclictest0-21swapper/023:18:450
2740299200,0cyclictest0-21swapper/021:28:120
2741299193,11cyclictest1-21systemd00:07:563
2741299191,1cyclictest0-21swapper/323:50:143
2740999191,2cyclictest141rcu_preempt23:55:422
2740999190,18cyclictest0-21swapper/200:19:522
2740799191,1cyclictest20272-21diskmemload21:53:481
2740299192,4cyclictest13-21ksoftirqd/000:25:450
2740299192,3cyclictest1260-21ssh23:13:400
27402991916,1cyclictest13-21ksoftirqd/022:34:210
27402991915,1cyclictest161rcuc/022:21:460
27402991914,3cyclictest13-21ksoftirqd/023:29:050
2740299190,2cyclictest0-21swapper/022:12:540
2740299190,2cyclictest0-21swapper/000:06:010
2740299190,1cyclictest0-21swapper/023:22:000
2740299190,0cyclictest0-21swapper/021:11:400
27409991815,1cyclictest0-21swapper/222:05:182
2740999180,16cyclictest0-21swapper/222:13:342
2740999180,15cyclictest0-21swapper/221:12:102
2740799181,1cyclictest20272-21diskmemload21:13:171
2740799180,1cyclictest0-21swapper/123:38:051
2740299182,2cyclictest13-21ksoftirqd/022:41:180
27402991817,1cyclictest13-21ksoftirqd/021:40:070
27402991815,3cyclictest161rcuc/021:55:120
2740299180,17cyclictest0-21swapper/023:01:210
2740299180,0cyclictest0-21swapper/023:05:050
2741299170,1cyclictest0-21swapper/300:00:123
2741299170,1cyclictest0-21swapper/300:00:113
2740999175,2cyclictest141rcu_preempt21:15:152
2740999170,3cyclictest0-21swapper/222:31:012
27407991717,0cyclictest0-21swapper/121:24:461
27407991713,1cyclictest0-21swapper/123:10:191
2740799170,17cyclictest0-21swapper/100:28:101
27402991713,2cyclictest141rcu_preempt21:24:170
27402991713,1cyclictest13-21ksoftirqd/023:37:040
27402991712,1cyclictest13-21ksoftirqd/022:28:330
189422170,1chrt18925-21ssh23:05:002
2741299160,14cyclictest8208-21ssh23:55:483
2741299160,14cyclictest0-21swapper/321:55:113
27409991613,1cyclictest141rcu_preempt23:49:422
2740799163,8cyclictest14612-21df00:00:151
2740799163,8cyclictest14612-21df00:00:151
27407991614,1cyclictest0-21swapper/122:45:141
27407991613,2cyclictest30911-21threads21:15:251
27407991610,3cyclictest0-21swapper/123:25:581
2740799160,2cyclictest0-21swapper/121:57:011
2740799160,16cyclictest0-21swapper/121:33:361
2740799160,15cyclictest0-21swapper/100:37:341
2740299162,1cyclictest141rcu_preempt22:48:460
2740299162,0cyclictest0-21swapper/023:44:080
2740299161,1cyclictest141rcu_preempt21:02:040
2740299160,2cyclictest0-21swapper/000:30:080
2740299160,1cyclictest0-21swapper/022:07:050
27409991513,1cyclictest0-21swapper/221:38:502
27409991512,2cyclictest24129-21threads00:05:252
2740999151,13cyclictest0-21swapper/223:11:412
2740999150,3cyclictest0-21swapper/222:28:062
2740999150,1cyclictest0-21swapper/219:15:132
2740999150,15cyclictest0-21swapper/222:57:492
2740799156,8cyclictest27782-31find00:08:061
2740799153,8cyclictest225-21systemd-journal19:15:001
27407991513,2cyclictest25-21ksoftirqd/122:06:031
2740799150,14cyclictest8385-21grep22:20:001
2740799150,14cyclictest8385-21grep22:20:001
2740299154,6cyclictest30035-21munin-run21:35:000
2740299152,7cyclictest13-21ksoftirqd/000:16:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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