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2026-02-20 - 10:26
[ 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 Fri Feb 20, 2026 00:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171589912951239,39cyclictest17802-21smartctl19:25:180
171599912171195,18cyclictest17534-21cstates19:25:131
171599911061052,36cyclictest13421-21python21:30:291
171599911061052,36cyclictest13421-21python21:30:281
170572674628,30sleep00-21swapper/019:24:360
167042563518,29sleep10-21swapper/119:20:551
171589910068,14cyclictest13422-21ssh21:30:290
171589910068,14cyclictest13422-21ssh21:30:280
74502880,5sleep07449-21ssh21:25:100
191682790,4sleep1201rcuc/123:50:261
28642740,3sleep00-21swapper/021:53:460
319202500,4sleep1111-21usb-storage21:50:161
253902490,5sleep11715999cyclictest22:50:161
137292481,34sleep013836-21wget22:05:120
122332470,7sleep01715899cyclictest00:16:350
17158994515,19cyclictest3-21ksoftirqd/021:59:130
17158994512,20cyclictest25370-21ssh23:56:470
179352440,23sleep122-21ksoftirqd/120:50:141
17158994214,17cyclictest0-21swapper/022:43:390
269342411,8sleep10-21swapper/100:31:551
261602401,4sleep026187-21munin-run23:25:010
1715999409,5cyclictest0-21swapper/122:26:061
1715999409,28cyclictest0-21swapper/123:19:361
1715999405,32cyclictest0-21swapper/122:44:161
1715999402,34cyclictest0-21swapper/122:57:351
1715899408,28cyclictest0-21swapper/022:23:160
17158994015,15cyclictest3-21ksoftirqd/022:15:050
17158994013,17cyclictest0-21swapper/023:09:060
17158994013,15cyclictest0-21swapper/022:57:380
17158994012,11cyclictest20408-21iostat19:30:180
17158994011,5cyclictest14446-21sort00:55:000
1715999399,8cyclictest0-21swapper/119:52:411
17158993913,16cyclictest0-21swapper/021:35:560
1715899391,19cyclictest0-21swapper/022:00:280
1715999386,15cyclictest0-21swapper/123:01:561
1715999384,31cyclictest0-21swapper/122:24:551
17158993827,6cyclictest27677-21ntp_states21:45:250
1715899382,5cyclictest2379-21/usr/sbin/munin00:40:190
17158993812,8cyclictest25175-21ssh21:10:060
17158993812,8cyclictest2394-21ssh00:06:260
17158993812,12cyclictest3-21ksoftirqd/023:46:340
1715899381,14cyclictest16774-21aten_r4power_cu23:15:120
1715999372,18cyclictest0-21swapper/121:17:161
1715899372,32cyclictest0-21swapper/000:25:160
17158993715,7cyclictest3-21ksoftirqd/022:10:310
17158993713,8cyclictest12526-21iostat_ios20:35:210
17158993713,7cyclictest30853-21ssh00:02:410
17158993713,14cyclictest0-21swapper/023:39:450
17158993713,14cyclictest0-21swapper/000:35:490
17158993712,9cyclictest8770-21iostat_ios20:25:180
17158993712,8cyclictest27392-21ntp_states23:25:240
17158993712,8cyclictest21629-21ssh22:45:380
17158993712,8cyclictest15195-21df_inode00:20:150
17158993712,8cyclictest11341-21ntp_states22:35:250
17158993712,15cyclictest0-21swapper/000:49:380
1715999361,15cyclictest26402-21cut21:10:281
1715899361,5cyclictest21758-21fschecks_time21:00:160
17158993613,6cyclictest22209-21df_inode21:40:130
17158993612,7cyclictest906-21ssh21:18:110
17158993612,7cyclictest2645-21snmpd21:20:410
17158993612,7cyclictest26149-21memory19:45:210
17158993611,8cyclictest31585-21df_inode23:30:150
17158993611,7cyclictest3949-21ssh22:28:040
1715899361,14cyclictest30497-21gdbus20:59:540
1715899361,12cyclictest15921-21ls20:45:130
1715899361,10cyclictest15994-21seq23:14:180
105322360,33sleep110542-21ssh21:27:561
1715999358,6cyclictest2206-21dbus-daemon23:57:401
1715999351,5cyclictest5268-21seq23:35:361
1715999351,15cyclictest5230-21ssh00:43:211
17158993513,12cyclictest0-21swapper/020:54:420
17158993512,7cyclictest22282-21iostat19:35:190
17158993512,6cyclictest5491-21df00:10:130
17158993512,14cyclictest0-21swapper/020:10:050
17158993511,7cyclictest9156-21ssh22:33:370
17158993511,7cyclictest6789-21hddtemp_smartct20:20:180
1715999346,24cyclictest0-21swapper/121:42:501
17159993415,15cyclictest22-21ksoftirqd/123:34:011
1715899349,6cyclictest0-21swapper/023:51:550
1715899341,6cyclictest24897-21fschecks_count00:30:170
17158993413,12cyclictest0-21swapper/020:15:270
17158993413,12cyclictest0-21swapper/019:55:340
17158993412,13cyclictest0-21swapper/020:06:520
17158993412,12cyclictest0-21swapper/020:03:480
91212330,2sleep09123-21which23:40:160
1715999339,5cyclictest40550irq/92-i91520:48:041
1715999332,28cyclictest0-21swapper/100:48:161
1715999332,27cyclictest22139-21cut23:20:161
17159993317,13cyclictest30506-21runrttasks00:35:271
1715999331,5cyclictest5798-21cstates22:30:121
17159993315,14cyclictest8176-21aten_r4power_cu20:25:101
17159993314,4cyclictest40550irq/92-i91519:59:521
1715999331,29cyclictest9711-21ssh00:14:551
1715999331,29cyclictest2965-21fschecks_count21:20:161
1715899331,30cyclictest0-21swapper/022:51:150
1715899331,19cyclictest11132-21/usr/sbin/munin20:30:310
271372321,4sleep127226-21memory23:25:221
1715999329,4cyclictest40550irq/92-i91520:35:321
1715999328,4cyclictest40550irq/92-i91519:36:231
1715999326,22cyclictest0-21swapper/122:10:131
1715999325,8cyclictest40550irq/92-i91523:45:291
1715999321,29cyclictest0-21swapper/100:54:151
17159993210,4cyclictest40550irq/92-i91521:58:191
17158993213,5cyclictest0-21swapper/021:05:060
17158993213,5cyclictest0-21swapper/020:42:200
17158993213,5cyclictest0-21swapper/019:50:440
17158993213,5cyclictest0-21swapper/019:42:500
1715899321,19cyclictest3384-21processes23:00:310
205512311,26sleep120558-21ssh21:38:281
1715999318,5cyclictest40550irq/92-i91521:45:141
1715999312,12cyclictest0-21swapper/100:07:201
1715999306,5cyclictest40550irq/92-i91523:42:581
17159993022,6cyclictest0-21swapper/122:46:151
1715999301,9cyclictest7314-21/usr/sbin/munin20:20:291
1715999301,5cyclictest0-21swapper/122:00:551
1715999301,25cyclictest0-21swapper/122:38:101
17159993011,4cyclictest40550irq/92-i91519:31:451
169692301,3sleep10-21swapper/122:08:071
116812301,5sleep10-21swapper/123:10:011
1715999294,5cyclictest40550irq/92-i91520:55:251
1715999292,8cyclictest28581-21irqstats00:00:221
1715999291,8cyclictest10616-21if_eth020:30:191
17159992916,10cyclictest22-21ksoftirqd/123:05:331
1715999291,26cyclictest0-21swapper/122:15:361
1715999291,24cyclictest21553-21taskset00:26:041
18872281,5sleep10-21swapper/120:06:151
1715999287,5cyclictest40550irq/92-i91521:05:271
1715999286,5cyclictest40550irq/92-i91500:20:041
17159992820,5cyclictest22-21ksoftirqd/120:00:591
17159992816,9cyclictest22-21ksoftirqd/100:16:081
32022271,5sleep10-21swapper/120:10:241
1715999276,5cyclictest40550irq/92-i91520:15:161
1715999275,5cyclictest40550irq/92-i91519:50:011
1715999262,6cyclictest22242-21wc21:00:261
17159992618,5cyclictest24051-21cut19:40:151
17159992618,5cyclictest13849-21aten_r4power_cu20:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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