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2026-02-04 - 19:15
[ 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 Wed Feb 04, 2026 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284969911851153,26cyclictest0-21swapper/007:25:150
284979911751139,28cyclictest15675-21sed09:20:311
284979910951079,13cyclictest0-21swapper/107:25:131
281712565516,33sleep00-21swapper/007:22:180
281232462418,30sleep10-21swapper/107:21:481
2849699154124,27cyclictest0-21swapper/009:20:320
1469521180,8sleep02849699cyclictest12:41:180
298872860,7sleep00-21swapper/011:15:290
137142750,3sleep12849799cyclictest11:32:361
163272700,3sleep0111rcuc/011:01:330
34562530,5sleep0111rcuc/011:21:410
218152520,3sleep0111rcuc/012:50:150
28496995016,26cyclictest3-21ksoftirqd/011:30:180
2849699457,11cyclictest3-21ksoftirqd/009:18:280
28496994417,16cyclictest3-21ksoftirqd/010:17:110
28496994316,7cyclictest3-21ksoftirqd/010:27:480
28496994316,7cyclictest3-21ksoftirqd/009:13:490
28496994225,6cyclictest3-21ksoftirqd/012:03:430
28496994125,6cyclictest3-21ksoftirqd/008:42:310
28496994116,6cyclictest3-21ksoftirqd/012:27:050
28496994116,6cyclictest3-21ksoftirqd/010:52:190
28496994115,7cyclictest3-21ksoftirqd/011:52:360
2849699406,31cyclictest0-21swapper/010:37:550
28496994018,7cyclictest3-21ksoftirqd/010:01:370
28496994014,7cyclictest3-21ksoftirqd/012:21:110
28496993922,5cyclictest3-21ksoftirqd/009:51:060
28496993917,7cyclictest3-21ksoftirqd/012:17:410
28496993917,7cyclictest3-21ksoftirqd/011:37:410
28496993917,7cyclictest3-21ksoftirqd/009:59:400
28496993913,11cyclictest3-21ksoftirqd/009:40:280
2849699391,26cyclictest8165-21ssh09:46:220
28497993823,11cyclictest9618-21ssh12:03:121
28497993811,7cyclictest40550irq/92-i91510:55:331
28496993817,6cyclictest3-21ksoftirqd/010:21:390
28496993816,7cyclictest3-21ksoftirqd/011:12:310
28496993816,7cyclictest3-21ksoftirqd/010:41:460
28496993816,7cyclictest3-21ksoftirqd/010:41:450
28496993816,7cyclictest3-21ksoftirqd/009:03:520
28496993815,8cyclictest3-21ksoftirqd/008:17:340
28496993815,7cyclictest3-21ksoftirqd/009:27:550
28496993813,15cyclictest3-21ksoftirqd/012:36:590
28496993812,15cyclictest3-21ksoftirqd/010:14:240
28497993727,7cyclictest0-21swapper/111:00:561
2849699376,19cyclictest0-21swapper/007:35:450
2849699373,5cyclictest0-21swapper/011:47:550
28496993715,7cyclictest3-21ksoftirqd/011:05:050
252422370,3sleep1201rcuc/111:45:241
2849799367,25cyclictest0-21swapper/112:47:571
2849799364,29cyclictest0-21swapper/107:50:161
28497993628,6cyclictest0-21swapper/112:24:151
2849699362,30cyclictest11653-21perl12:05:160
28496993621,4cyclictest3-21ksoftirqd/012:45:420
28496993616,6cyclictest3-21ksoftirqd/012:34:560
28496993615,7cyclictest3-21ksoftirqd/010:47:030
28496993615,6cyclictest3-21ksoftirqd/010:56:250
28496993615,6cyclictest3-21ksoftirqd/009:08:230
28496993614,7cyclictest3-21ksoftirqd/011:27:170
28496993614,7cyclictest3-21ksoftirqd/009:37:120
28496993612,14cyclictest3-21ksoftirqd/011:57:490
53362351,4sleep15343-21iostat_ios07:45:211
47852351,30sleep14799-21ssh11:23:381
39322351,30sleep14226-21diskmemload12:30:241
2849799353,5cyclictest81rcu_preempt10:01:381
2849799353,30cyclictest0-21swapper/109:44:161
28497993519,13cyclictest22-21ksoftirqd/110:05:421
28497993517,14cyclictest14696-21ssh12:41:191
28496993514,7cyclictest3-21ksoftirqd/009:32:060
28496993514,6cyclictest3-21ksoftirqd/011:40:300
215062355,4sleep121520-21ssh12:15:221
163482351,30sleep116359-21ssh10:28:551
138932351,9sleep00-21swapper/008:09:020
314922341,29sleep131505-21diskmemload10:44:451
314922341,29sleep131505-21diskmemload10:44:451
2849799345,26cyclictest1153-21rm10:13:061
28497993422,8cyclictest3831-21pidof09:05:591
28497993421,10cyclictest0-21swapper/111:51:351
2849799341,30cyclictest0-21swapper/111:44:161
2849699349,14cyclictest3-21ksoftirqd/012:10:590
28496993415,7cyclictest0-21swapper/008:58:100
28496993413,6cyclictest3-21ksoftirqd/008:47:010
28496993412,7cyclictest3-21ksoftirqd/010:09:400
121052341,29sleep012116-21munin-run08:05:010
2849799334,4cyclictest81rcu_preempt11:37:411
28497993325,5cyclictest0-21swapper/109:12:161
2849799331,28cyclictest23825-21ssh10:35:421
2849799331,28cyclictest0-21swapper/109:45:361
28497993310,20cyclictest0-21swapper/110:45:201
28496993312,6cyclictest3-21ksoftirqd/008:28:290
28496993311,7cyclictest3-21ksoftirqd/008:53:320
288172321,4sleep128946-21df11:15:131
2849799324,4cyclictest81rcu_preempt12:27:051
2849799324,4cyclictest81rcu_preempt10:20:581
2849799323,7cyclictest81rcu_preempt10:17:111
28497993216,12cyclictest15921-21sort08:15:001
2849799321,4cyclictest81rcu_preempt08:43:071
2849699327,13cyclictest3-21ksoftirqd/008:14:150
28496993218,5cyclictest3-21ksoftirqd/008:35:470
28496993216,5cyclictest8503-21/usr/sbin/munin07:55:270
28496993214,6cyclictest0-21swapper/007:45:250
28496993211,6cyclictest3-21ksoftirqd/007:55:000
128382321,5sleep10-21swapper/109:51:091
289822311,5sleep10-21swapper/108:49:291
2849799319,18cyclictest0-21swapper/112:10:011
2849799314,4cyclictest81rcu_preempt09:59:381
2849799313,4cyclictest81rcu_preempt12:36:301
2849799313,4cyclictest81rcu_preempt11:05:061
2849799313,4cyclictest81rcu_preempt10:52:191
2849799313,4cyclictest81rcu_preempt09:15:091
28497993124,4cyclictest3880-21ssh11:56:551
2849799312,15cyclictest17681-21df10:30:121
2849799311,4cyclictest81rcu_preempt09:03:531
2849799311,4cyclictest81rcu_preempt08:17:351
2849699319,8cyclictest3-21ksoftirqd/008:34:250
28496993114,4cyclictest21966-21cron10:35:000
28496993110,7cyclictest3-21ksoftirqd/007:44:290
98012301,5sleep10-21swapper/107:55:431
2849799302,4cyclictest81rcu_preempt11:12:301
28497993020,6cyclictest25017-21find09:30:281
2849799301,4cyclictest81rcu_preempt09:37:111
2849799301,27cyclictest0-21swapper/107:33:561
28496993011,6cyclictest3-21ksoftirqd/007:30:500
195232301,4sleep00-21swapper/008:23:520
2849799296,4cyclictest81rcu_preempt09:27:251
2849799293,22cyclictest0-21swapper/111:25:321
2849799291,4cyclictest81rcu_preempt12:07:101
2849799291,26cyclictest0-21swapper/112:54:561
212782291,5sleep10-21swapper/108:27:371
19452281,5sleep10-21swapper/107:35:431
2849799274,21cyclictest0-21swapper/108:05:121
28497992718,6cyclictest22-21ksoftirqd/108:56:521
2849799271,13cyclictest29202-21/usr/sbin/munin08:50:281
28497992711,11cyclictest4345-21update-apt-xapi07:42:471
231762271,5sleep10-21swapper/108:32:521
117582271,5sleep10-21swapper/108:01:241
188772261,5sleep10-21swapper/108:20:291
2849799252,4cyclictest81rcu_preempt08:39:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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