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2026-02-22 - 08:45
[ 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 highest latencies:
System rack9slot4s (updated Sun Feb 22, 2026 00:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
99539912601226,30cyclictest2645-21snmpd19:26:301
99529911701154,13cyclictest18137-21kworker/0:019:26:470
98822738690,32sleep10-21swapper/119:24:511
98372563517,31sleep00-21swapper/019:24:210
73052920,4sleep00-21swapper/000:54:410
261982860,8sleep0995299cyclictest21:51:030
261982860,8sleep0995299cyclictest21:51:030
301102590,9sleep0995299cyclictest21:55:240
9953995811,6cyclictest22-21ksoftirqd/122:33:591
9953995718,8cyclictest22-21ksoftirqd/119:30:261
9953995718,6cyclictest22-21ksoftirqd/123:55:281
9953995718,5cyclictest22-21ksoftirqd/123:00:211
9953995712,6cyclictest22-21ksoftirqd/121:48:491
9953995712,5cyclictest22-21ksoftirqd/122:18:061
9953995711,6cyclictest22-21ksoftirqd/121:26:121
9953995710,6cyclictest22-21ksoftirqd/121:54:551
9953995710,6cyclictest22-21ksoftirqd/121:54:541
995399569,6cyclictest22-21ksoftirqd/123:16:091
9953995618,6cyclictest22-21ksoftirqd/122:05:151
9953995618,6cyclictest22-21ksoftirqd/121:05:231
9953995611,6cyclictest22-21ksoftirqd/121:37:331
9953995611,6cyclictest22-21ksoftirqd/100:16:011
9953995611,6cyclictest22-21ksoftirqd/100:16:011
9953995610,6cyclictest22-21ksoftirqd/121:21:181
9953995610,5cyclictest22-21ksoftirqd/123:06:411
9953995519,5cyclictest22-21ksoftirqd/100:30:291
9953995517,6cyclictest22-21ksoftirqd/123:25:221
9953995517,6cyclictest22-21ksoftirqd/122:40:001
9953995517,5cyclictest22-21ksoftirqd/119:50:121
9953995516,6cyclictest22-21ksoftirqd/122:50:241
9953995511,13cyclictest22-21ksoftirqd/121:59:181
9953995510,6cyclictest22-21ksoftirqd/122:26:021
9953995510,6cyclictest22-21ksoftirqd/122:12:121
9953995510,6cyclictest22-21ksoftirqd/100:45:331
9953995510,5cyclictest22-21ksoftirqd/121:40:061
995399549,6cyclictest22-21ksoftirqd/100:20:451
995399549,6cyclictest22-21ksoftirqd/100:02:471
995399548,6cyclictest22-21ksoftirqd/122:58:531
9953995417,5cyclictest22-21ksoftirqd/121:10:221
9953995417,5cyclictest22-21ksoftirqd/119:40:121
9953995416,6cyclictest22-21ksoftirqd/120:35:281
9953995321,4cyclictest22-21ksoftirqd/123:52:531
9953995317,6cyclictest22-21ksoftirqd/123:12:021
9953995317,6cyclictest22-21ksoftirqd/120:00:111
9953995317,5cyclictest22-21ksoftirqd/120:40:181
9953995317,5cyclictest22-21ksoftirqd/120:15:121
9953995317,5cyclictest22-21ksoftirqd/100:35:181
9953995317,5cyclictest22-21ksoftirqd/100:25:251
9953995218,6cyclictest22-21ksoftirqd/123:40:241
9953995218,5cyclictest22-21ksoftirqd/122:45:121
9953995216,6cyclictest22-21ksoftirqd/100:05:111
9953995117,5cyclictest22-21ksoftirqd/121:30:281
9953995117,10cyclictest22-21ksoftirqd/123:45:141
9953995116,5cyclictest22-21ksoftirqd/119:55:121
9953995116,5cyclictest22-21ksoftirqd/100:40:181
995399509,6cyclictest22-21ksoftirqd/100:14:441
995399508,6cyclictest22-21ksoftirqd/100:50:471
9953995015,6cyclictest22-21ksoftirqd/120:56:541
9953995014,5cyclictest22-21ksoftirqd/122:20:531
135162501,30sleep013531-21iostat_ios22:45:200
9953994918,4cyclictest22-21ksoftirqd/123:34:361
9953994914,6cyclictest22-21ksoftirqd/122:01:061
9953994914,5cyclictest22-21ksoftirqd/120:07:061
9953994912,6cyclictest22-21ksoftirqd/123:20:091
995399484,14cyclictest31431-21/usr/sbin/munin20:20:091
9953994815,5cyclictest22-21ksoftirqd/121:18:281
9953994814,6cyclictest22-21ksoftirqd/119:38:351
9953994725,4cyclictest22-21ksoftirqd/122:40:271
9953994725,4cyclictest22-21ksoftirqd/120:25:261
9953994716,10cyclictest22-21ksoftirqd/120:15:011
9953994714,6cyclictest22-21ksoftirqd/123:35:321
9953994713,6cyclictest22-21ksoftirqd/121:02:461
995399468,20cyclictest11116-21sed20:50:221
9953994625,4cyclictest22-21ksoftirqd/120:30:271
9953994613,5cyclictest22-21ksoftirqd/119:45:151
9953994613,5cyclictest22-21ksoftirqd/119:45:141
9953994525,4cyclictest22-21ksoftirqd/120:45:221
68292444,23sleep06284-21/usr/sbin/munin23:45:190
297282437,3sleep029738-21ssh00:09:230
187092411,36sleep018719-21ssh22:17:110
995299409,4cyclictest29371-21idleruntime-cro20:15:000
995299392,15cyclictest0-21swapper/000:03:150
995299382,12cyclictest0-21swapper/000:13:320
995299381,18cyclictest0-21swapper/019:56:350
995299373,5cyclictest81rcu_preempt19:45:290
995299373,5cyclictest81rcu_preempt19:45:290
995299372,31cyclictest0-21swapper/023:32:350
69992371,4sleep017746-21diskmemload21:31:140
995299367,16cyclictest15847-21ssh21:40:290
995299365,28cyclictest0-21swapper/000:16:360
995299365,28cyclictest0-21swapper/000:16:350
995299362,22cyclictest2645-21snmpd23:52:230
995299356,4cyclictest81rcu_preempt23:15:230
995299354,7cyclictest81rcu_preempt22:03:260
995299354,28cyclictest1514-21kworker/u4:222:07:160
995299352,6cyclictest0-21swapper/000:33:150
995299351,6cyclictest0-21swapper/022:37:550
9952993515,10cyclictest3-21ksoftirqd/000:20:180
995299351,30cyclictest23385-21chrt22:21:550
995299351,16cyclictest13915-21sort00:25:320
995299350,10cyclictest81rcu_preempt21:15:000
117902351,4sleep011798-21sh22:43:530
995299349,5cyclictest81rcu_preempt21:26:530
995299346,4cyclictest81rcu_preempt22:55:520
995299345,4cyclictest81rcu_preempt22:25:350
995299343,4cyclictest81rcu_preempt22:10:190
9952993425,6cyclictest30497-21gdbus21:18:090
9952993421,10cyclictest20863-21timerwakeupswit21:45:290
995299341,30cyclictest6910-21diskstats20:40:160
9952993412,12cyclictest3-21ksoftirqd/000:45:100
995299336,4cyclictest81rcu_preempt23:55:170
995299334,4cyclictest81rcu_preempt23:06:030
995299333,8cyclictest18493-21memory22:50:220
995299332,27cyclictest0-21swapper/000:43:160
9952993318,5cyclictest3-21ksoftirqd/023:35:290
995299331,30cyclictest0-21swapper/023:10:360
995299331,29cyclictest0-21swapper/022:31:550
995299326,15cyclictest0-21swapper/023:25:090
995299323,4cyclictest81rcu_preempt21:22:010
9952993215,7cyclictest3-21ksoftirqd/023:20:180
995299321,4cyclictest81rcu_preempt23:00:120
995299321,4cyclictest81rcu_preempt20:07:230
9952993210,6cyclictest0-21swapper/021:38:400
106552321,27sleep010664-21diskstats20:50:130
995299311,7cyclictest21146-21python19:50:260
9952993113,5cyclictest23107-21/usr/sbin/munin00:35:230
9952993112,6cyclictest18108-21turbostat19:44:590
40062310,4sleep041ktimersoftd/023:42:060
995299307,4cyclictest3-21ksoftirqd/020:25:190
9952993016,4cyclictest3-21ksoftirqd/020:20:150
995299301,4cyclictest81rcu_preempt20:15:210
9952993013,7cyclictest3-21ksoftirqd/019:35:140
156422301,5sleep00-21swapper/021:02:480
995299295,4cyclictest81rcu_preempt20:47:150
9952992915,4cyclictest3-21ksoftirqd/020:00:140
9952992911,5cyclictest12083-21munin-node19:30:020
62072291,5sleep00-21swapper/020:37:430
44902291,5sleep00-21swapper/020:34:210
135292291,5sleep00-21swapper/020:55:330
995299281,14cyclictest16060-21/usr/sbin/munin21:05:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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