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2026-01-18 - 20:20
[ 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 #9, slot #4

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 376 highest latencies:
System rack9slot4s (updated Sun Jan 18, 2026 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
85429912241180,40cyclictest9174-21hddtemp_smartct07:25:150
85439911781166,9cyclictest18506-21ssh09:15:171
85439911731127,26cyclictest8934-21ls07:25:121
82642577531,31sleep10-21swapper/107:22:441
845724850,10sleep0111rcuc/007:24:440
854299151115,18cyclictest18513-21perl09:15:160
979821120,22sleep03-21ksoftirqd/009:40:090
22472850,4sleep10-21swapper/110:05:201
25092660,3sleep12508-21ssh10:39:301
8543996125,4cyclictest22-21ksoftirqd/111:35:241
8543995412,6cyclictest22-21ksoftirqd/111:04:071
8543995217,4cyclictest22-21ksoftirqd/110:28:551
8543995215,6cyclictest22-21ksoftirqd/112:45:281
8543995213,8cyclictest22-21ksoftirqd/108:05:131
8543995213,6cyclictest22-21ksoftirqd/110:30:161
8543995119,9cyclictest22-21ksoftirqd/109:30:271
8543995114,6cyclictest22-21ksoftirqd/112:05:181
8543995114,6cyclictest22-21ksoftirqd/109:41:571
8543995113,8cyclictest22-21ksoftirqd/107:50:111
8543995113,6cyclictest22-21ksoftirqd/110:15:231
8543995113,6cyclictest22-21ksoftirqd/109:10:101
8543995113,5cyclictest22-21ksoftirqd/112:00:261
8543995112,6cyclictest22-21ksoftirqd/110:55:101
854399506,4cyclictest81rcu_preempt09:35:331
854399504,6cyclictest22-21ksoftirqd/111:24:431
854399504,6cyclictest22-21ksoftirqd/109:48:401
8543995023,5cyclictest22-21ksoftirqd/108:57:511
8543995015,9cyclictest22-21ksoftirqd/112:50:211
8543995014,6cyclictest22-21ksoftirqd/111:10:351
8543995013,6cyclictest22-21ksoftirqd/112:30:201
8543995012,6cyclictest22-21ksoftirqd/112:20:161
8543995012,6cyclictest22-21ksoftirqd/111:15:111
854299501,15cyclictest22464-21head10:25:310
854399495,5cyclictest22-21ksoftirqd/109:22:381
854399495,15cyclictest22-21ksoftirqd/110:51:271
854399494,6cyclictest22-21ksoftirqd/111:28:521
8543994919,4cyclictest22-21ksoftirqd/112:16:431
8543994917,6cyclictest22-21ksoftirqd/112:37:541
8543994914,6cyclictest22-21ksoftirqd/111:54:001
8543994913,5cyclictest22-21ksoftirqd/110:20:291
8543994912,16cyclictest22-21ksoftirqd/107:30:281
854399484,5cyclictest22-21ksoftirqd/111:40:031
854399483,6cyclictest22-21ksoftirqd/112:14:441
8543994815,6cyclictest22-21ksoftirqd/111:05:421
8543994814,6cyclictest22-21ksoftirqd/110:41:581
8543994813,5cyclictest22-21ksoftirqd/108:49:391
8543994812,6cyclictest22-21ksoftirqd/111:58:451
8543994812,16cyclictest22-21ksoftirqd/107:35:221
8543994811,6cyclictest22-21ksoftirqd/110:45:191
8543994811,6cyclictest22-21ksoftirqd/108:10:221
854399474,6cyclictest22-21ksoftirqd/112:27:331
854399474,5cyclictest22-21ksoftirqd/109:28:361
854399473,14cyclictest22-21ksoftirqd/111:31:581
8543994712,6cyclictest22-21ksoftirqd/112:43:231
8543994711,16cyclictest22-21ksoftirqd/108:20:111
8543994622,4cyclictest22-21ksoftirqd/108:19:051
8543994618,5cyclictest22-21ksoftirqd/110:02:341
8543994615,10cyclictest22-21ksoftirqd/110:11:061
8543994614,10cyclictest22-21ksoftirqd/109:50:261
8543994611,6cyclictest22-21ksoftirqd/108:35:121
854399459,5cyclictest22-21ksoftirqd/109:55:161
8543994518,5cyclictest22-21ksoftirqd/111:49:071
8543994513,6cyclictest22-21ksoftirqd/109:09:311
854399437,5cyclictest22-21ksoftirqd/108:40:181
272402420,2sleep027237-21grep10:30:270
8543994123,4cyclictest22-21ksoftirqd/108:00:081
8543994121,4cyclictest22-21ksoftirqd/107:44:161
236212411,36sleep023631-21ssh11:34:440
854399406,4cyclictest81rcu_preempt07:45:331
8543994024,4cyclictest22-21ksoftirqd/108:30:231
218122401,35sleep021822-21ssh10:59:160
854399394,4cyclictest81rcu_preempt07:55:171
8543993917,4cyclictest22-21ksoftirqd/108:25:111
8542993915,5cyclictest25182ssh11:12:170
854299391,4cyclictest81rcu_preempt12:28:260
8543993816,4cyclictest22-21ksoftirqd/109:00:191
854399375,4cyclictest81rcu_preempt08:51:531
854299374,5cyclictest0-21swapper/009:55:550
854299372,21cyclictest28299-21ssh11:39:300
854299368,24cyclictest0-21swapper/010:36:190
8542993617,14cyclictest23209-21tune2fs09:20:160
8542993525,7cyclictest0-21swapper/012:49:150
854299352,4cyclictest7956-21iostat_ios08:55:150
8542993510,11cyclictest22018-21timerandwakeup12:05:300
52562351,30sleep05275-21/usr/sbin/munin09:35:140
213612351,30sleep021373-21rm12:39:100
854299348,23cyclictest0-21swapper/009:11:430
854299344,4cyclictest81rcu_preempt10:48:560
8542993426,5cyclictest0-21swapper/007:44:560
854299342,29cyclictest0-21swapper/011:27:160
8542993418,7cyclictest3-21ksoftirqd/011:09:470
8542993417,8cyclictest3-21ksoftirqd/010:44:270
8542993412,8cyclictest3-21ksoftirqd/011:48:180
854299341,19cyclictest12870-21diskmemload09:53:480
37422341,4sleep012870-21diskmemload10:06:250
99982331,4sleep010070-21tr09:00:240
854299338,21cyclictest24026-21ssh12:40:590
854299337,9cyclictest0-21swapper/011:52:460
854299333,4cyclictest81rcu_preempt11:59:280
8542993326,4cyclictest0-21swapper/010:16:360
854299332,19cyclictest29248-21df_inode11:40:140
854299331,13cyclictest0-21swapper/012:20:460
20022331,4sleep02017-21ssh09:31:150
107802331,4sleep010863-21sort11:20:280
854299327,4cyclictest28253-21ssh09:25:180
854299324,4cyclictest81rcu_preempt11:15:280
854299324,3cyclictest81rcu_preempt10:10:370
854299323,4cyclictest81rcu_preempt10:03:580
854299323,15cyclictest11426-21df09:05:130
854299321,4cyclictest81rcu_preempt12:11:060
854299321,29cyclictest0-21swapper/012:03:550
854299321,28cyclictest0-21swapper/008:14:160
854299319,11cyclictest3-21ksoftirqd/008:15:230
854299312,15cyclictest30749-21/usr/sbin/munin08:25:270
854299311,4cyclictest81rcu_preempt11:00:520
8542993113,7cyclictest3-21ksoftirqd/010:20:290
854299311,19cyclictest0-21swapper/008:36:540
8542993022,4cyclictest1968-21lldpad07:53:330
8542993015,12cyclictest3-21ksoftirqd/012:18:350
8542993010,7cyclictest13890-21ntpq10:50:240
854299295,4cyclictest81rcu_preempt12:50:130
854299294,4cyclictest81rcu_preempt08:42:100
854299291,25cyclictest2403-21irqbalance09:49:150
8542992911,6cyclictest30497-21gdbus08:02:410
854299291,13cyclictest30497-21gdbus07:58:230
854299291,12cyclictest12979-21grep12:30:140
69822291,4sleep00-21swapper/008:52:470
236842291,5sleep00-21swapper/008:08:120
854299282,4cyclictest81rcu_preempt08:30:290
854299281,7cyclictest0-21swapper/008:21:180
112232281,5sleep00-21swapper/007:30:090
854299272,16cyclictest0-21swapper/008:45:200
854299271,14cyclictest13629-21/usr/sbin/munin07:35:170
173242271,5sleep00-21swapper/007:47:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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