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2026-02-15 - 14:38
[ 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 792 highest latencies:
System rack9slot4s (updated Sun Feb 15, 2026 12:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
293929911971187,7cyclictest0-21swapper/107:25:301
291932597551,31sleep10-21swapper/107:23:301
291682464417,32sleep00-21swapper/007:23:140
2939199176141,19cyclictest0-21swapper/007:25:300
893821180,23sleep122-21ksoftirqd/110:53:421
1804621170,7sleep12939299cyclictest11:35:391
16702890,3sleep11671-21sh11:52:541
157202780,4sleep00-21swapper/009:54:040
100352760,4sleep0111rcuc/012:00:470
56802620,8sleep12939299cyclictest09:43:331
293472570,7sleep12939299cyclictest11:48:001
2939199493,5cyclictest0-21swapper/010:25:150
268362440,4sleep1211ktimersoftd/110:38:521
42052420,3sleep1211ktimersoftd/111:55:201
22752410,8sleep12939299cyclictest09:00:251
282912401,4sleep128460-21df08:45:141
2939299383,5cyclictest81rcu_preempt11:40:271
51332370,4sleep041ktimersoftd/009:42:460
2939299376,6cyclictest81rcu_preempt10:48:091
141382370,3sleep0111rcuc/011:32:000
67262360,7sleep02939199cyclictest11:58:030
29392993626,6cyclictest10335-21ssh12:01:151
2939199361,8cyclictest10209-21ssh09:48:050
2939199361,6cyclictest25770-21ssh10:04:350
2939199361,32cyclictest0-21swapper/009:37:560
2939299355,4cyclictest81rcu_preempt09:56:571
2939299354,5cyclictest81rcu_preempt12:40:271
2939299354,4cyclictest81rcu_preempt12:11:061
29392993518,13cyclictest22-21ksoftirqd/110:17:231
2939299351,19cyclictest25046-21df_inode09:30:121
2939199351,30cyclictest30845-21ssh10:42:360
29391993511,12cyclictest3719-21sh10:15:110
237222351,30sleep023764-21df_inode12:50:130
203642351,30sleep130496-21packagekitd08:23:441
2939299345,4cyclictest81rcu_preempt12:31:501
2939299345,4cyclictest81rcu_preempt11:30:231
2939299344,5cyclictest81rcu_preempt11:20:201
2939299344,4cyclictest81rcu_preempt12:21:561
2939299344,4cyclictest81rcu_preempt11:01:031
2939299344,4cyclictest81rcu_preempt10:08:561
2939299344,4cyclictest81rcu_preempt09:25:411
2939299343,4cyclictest81rcu_preempt12:28:291
2939299343,4cyclictest81rcu_preempt11:05:501
29392993424,6cyclictest10878-21watchsnmpd07:58:001
2939199348,14cyclictest0-21swapper/009:11:450
2939199343,17cyclictest2147-21iostat_ios07:35:210
2939199343,16cyclictest15847-21memory09:20:220
2939199342,4cyclictest0-21swapper/010:39:560
2939199341,6cyclictest0-21swapper/007:30:350
29391993413,7cyclictest0-21swapper/011:04:280
2939199341,30cyclictest0-21swapper/012:20:360
2939199341,30cyclictest0-21swapper/011:43:160
2939199341,20cyclictest19679-21ssh12:10:460
273332342,5sleep10-21swapper/108:40:281
133202340,8sleep12939299cyclictest10:58:031
112132341,3sleep111223-21ssh11:29:501
112132341,3sleep111223-21ssh11:29:491
2939299334,5cyclictest81rcu_preempt11:19:461
2939299333,6cyclictest0-21swapper/110:10:561
2939299333,4cyclictest81rcu_preempt12:39:541
2939299333,4cyclictest81rcu_preempt10:43:101
2939299333,4cyclictest81rcu_preempt10:25:011
2939299333,4cyclictest81rcu_preempt10:24:571
2939299333,27cyclictest0-21swapper/110:03:351
29392993322,7cyclictest16906-21wget08:15:101
2939299331,5cyclictest0-21swapper/108:39:161
2939299331,4cyclictest81rcu_preempt09:17:271
2939299331,29cyclictest28219-21ssh11:13:351
2939199339,11cyclictest8671-21taskset10:20:120
2939199332,5cyclictest81rcu_preempt12:15:230
2939199332,11cyclictest0-21swapper/009:28:360
2939199331,5cyclictest0-21swapper/010:51:160
2939199331,30cyclictest0-21swapper/011:51:560
2939199331,30cyclictest0-21swapper/007:42:360
155562331,28sleep015597-21iostat08:10:180
150112330,8sleep02939199cyclictest12:06:010
302812321,27sleep130343-21df08:50:121
302282321,5sleep00-21swapper/010:09:040
2939299325,4cyclictest81rcu_preempt10:31:541
2939299323,4cyclictest81rcu_preempt09:35:481
2939299323,4cyclictest81rcu_preempt08:14:401
2939299322,4cyclictest81rcu_preempt09:53:461
2939299322,4cyclictest81rcu_preempt08:05:201
2939299321,28cyclictest3373-21/usr/sbin/munin09:05:151
2939199323,16cyclictest0-21swapper/008:06:420
29391993227,3cyclictest0-21swapper/012:49:150
29391993227,3cyclictest0-21swapper/010:55:550
2939199322,19cyclictest0-21swapper/010:46:220
2939199322,18cyclictest0-21swapper/012:27:150
2939199322,13cyclictest0-21swapper/012:32:070
2939199321,5cyclictest81rcu_preempt09:19:340
2939199321,4cyclictest81rcu_preempt11:49:410
29391993213,11cyclictest0-21swapper/011:10:010
2939199321,29cyclictest0-21swapper/011:38:350
2939199321,28cyclictest0-21swapper/011:20:350
2939199321,20cyclictest12938-21taskset08:04:440
29391993210,6cyclictest0-21swapper/009:58:100
242932321,4sleep024304-21ssh11:09:540
152852321,27sleep115369-21df09:20:131
2939299314,3cyclictest81rcu_preempt09:11:091
29392993123,5cyclictest17157-21kworker/u4:212:48:181
2939299311,5cyclictest81rcu_preempt12:05:131
2939199313,16cyclictest0-21swapper/011:25:050
2939199313,16cyclictest0-21swapper/011:25:040
2939199311,4cyclictest0-21swapper/008:21:160
29391993110,4cyclictest0-21swapper/010:10:100
2939299302,4cyclictest81rcu_preempt07:50:201
2939299302,3cyclictest81rcu_preempt09:46:331
29392993021,6cyclictest24549-21ssh12:15:491
29392993017,7cyclictest5720-21diskstats07:45:161
2939299301,4cyclictest81rcu_preempt12:51:041
2939199302,4cyclictest81rcu_preempt11:19:310
2939199302,4cyclictest81rcu_preempt09:30:400
29391993011,6cyclictest16588-21sh12:41:030
2939199301,12cyclictest6173-21grep07:45:220
2939199301,12cyclictest18238-21/usr/sbin/munin10:30:150
11352301,5sleep00-21swapper/008:59:270
29392992921,6cyclictest0-21swapper/108:34:561
29391992922,4cyclictest12169-21ssh12:36:420
2939199292,13cyclictest28180-21/usr/sbin/munin08:45:250
29391992911,6cyclictest30896-21ntp_states08:50:250
2939199291,14cyclictest3373-21/usr/sbin/munin09:05:280
29391992910,7cyclictest0-21swapper/008:27:400
2939299284,5cyclictest81rcu_preempt08:55:151
29392992820,6cyclictest0-21swapper/107:44:161
2939199289,6cyclictest17477-21iostat_ios08:15:180
2939199282,14cyclictest0-21swapper/008:42:540
2939199282,13cyclictest7583-21df07:50:120
2939199282,13cyclictest23131-21/usr/sbin/munin08:30:210
2939199281,14cyclictest9462-21df_inode07:55:150
30922271,5sleep10-21swapper/107:37:201
2939199279,6cyclictest25876-21taskset08:37:310
2939199272,13cyclictest1376-21/usr/sbin/munin09:00:270
2939299264,14cyclictest0-21swapper/108:29:061
2939299261,4cyclictest81rcu_preempt07:32:581
127232251,4sleep10-21swapper/108:02:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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