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2026-03-01 - 00:31
[ 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 Sat Feb 28, 2026 12:59:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76649911501122,24cyclictest8818-21python07:25:271
76639910971061,11cyclictest0-21swapper/007:26:120
72052791747,30sleep00-21swapper/007:20:460
74982465419,31sleep10-21swapper/107:23:521
112092950,2sleep10-21swapper/111:51:491
148482850,8sleep0766399cyclictest09:05:250
170032570,7sleep1766499cyclictest10:50:321
283072560,2sleep028305-21awk08:15:240
95862540,7sleep1766499cyclictest11:16:331
766499428,5cyclictest22-21ksoftirqd/112:03:251
7664994224,6cyclictest22-21ksoftirqd/110:18:161
766499419,28cyclictest2309-21cron12:45:001
7664994123,5cyclictest22-21ksoftirqd/110:05:161
7664994121,5cyclictest22-21ksoftirqd/109:55:351
263332411,36sleep026343-21ssh12:40:320
7664994024,5cyclictest22-21ksoftirqd/112:05:241
7664994020,5cyclictest22-21ksoftirqd/112:13:191
294842400,5sleep0111rcuc/009:23:530
12852400,8sleep1766499cyclictest08:30:171
7664993923,5cyclictest22-21ksoftirqd/109:17:171
7664993919,5cyclictest22-21ksoftirqd/109:26:021
766399398,4cyclictest0-21swapper/012:05:350
766399391,20cyclictest13171-21fschecks_time09:40:150
766499389,4cyclictest81rcu_preempt09:35:531
766499385,5cyclictest0-21swapper/110:42:161
766499385,17cyclictest0-21swapper/111:20:151
7664993822,6cyclictest22-21ksoftirqd/111:00:221
7664993822,5cyclictest22-21ksoftirqd/112:24:081
7664993822,5cyclictest22-21ksoftirqd/110:35:561
7664993821,6cyclictest22-21ksoftirqd/111:30:141
7664993818,8cyclictest22-21ksoftirqd/112:35:211
766399384,4cyclictest81rcu_preempt12:25:050
766399384,4cyclictest81rcu_preempt12:25:040
766499378,5cyclictest286302sh09:22:391
766499373,5cyclictest0-21swapper/110:48:161
7664993722,4cyclictest22-21ksoftirqd/112:45:221
7664993721,5cyclictest22-21ksoftirqd/111:49:181
7663993728,5cyclictest1455-21fschecks_count10:35:150
7663993726,6cyclictest28361-21python09:55:270
766399372,20cyclictest21521-21irqstats09:15:210
270982370,24sleep03-21ksoftirqd/010:28:070
156122371,32sleep015626-21sh11:23:190
766499363,29cyclictest0-21swapper/109:14:551
7664993621,5cyclictest22-21ksoftirqd/111:40:451
7664993619,6cyclictest22-21ksoftirqd/111:27:331
766499361,33cyclictest0-21swapper/110:25:351
766399368,13cyclictest28696-21sh12:10:140
766399363,30cyclictest0-21swapper/008:55:350
766499352,5cyclictest0-21swapper/111:05:351
766499352,30cyclictest5075-21hddtemp_smartct08:40:161
766499352,20cyclictest13194-21fschecks_time09:40:151
7664993520,5cyclictest22-21ksoftirqd/111:36:491
7664993519,5cyclictest22-21ksoftirqd/110:22:101
766399359,11cyclictest3-21ksoftirqd/009:31:150
766399355,4cyclictest81rcu_preempt11:09:130
766399354,13cyclictest0-21swapper/011:44:160
766399353,6cyclictest0-21swapper/008:11:560
766399352,30cyclictest0-21swapper/010:59:160
766399352,29cyclictest0-21swapper/007:50:560
7663993510,4cyclictest81rcu_preempt10:20:010
155022351,9sleep10-21swapper/107:41:101
7664993419,5cyclictest22-21ksoftirqd/110:59:531
7664993413,5cyclictest22-21ksoftirqd/112:26:421
7664993413,5cyclictest22-21ksoftirqd/112:26:421
7664993413,5cyclictest22-21ksoftirqd/111:11:581
766499341,30cyclictest0-21swapper/107:39:361
766399349,13cyclictest27271-21ssh11:01:140
766399344,5cyclictest81rcu_preempt11:46:440
766399343,16cyclictest14164-21/usr/sbin/munin07:40:320
7663993424,6cyclictest18905-21ssh11:26:040
766399342,17cyclictest27312-21iostat11:35:180
766399342,12cyclictest20918-21/usr/sbin/munin07:55:250
766399341,4cyclictest81rcu_preempt10:16:460
176262341,29sleep017633-21ssh12:31:570
766499335,4cyclictest81rcu_preempt10:01:531
766499334,7cyclictest22-21ksoftirqd/109:45:191
766499334,4cyclictest81rcu_preempt11:59:471
766499333,4cyclictest81rcu_preempt09:32:591
7664993318,5cyclictest22-21ksoftirqd/109:51:161
7664993315,5cyclictest22-21ksoftirqd/112:16:031
766499331,30cyclictest0-21swapper/108:27:361
766499331,30cyclictest0-21swapper/107:49:551
7663993316,14cyclictest3-21ksoftirqd/008:51:090
7663993313,6cyclictest5198-21irqstats10:05:200
766399331,29cyclictest0-21swapper/010:03:160
766399331,14cyclictest32410-21seq10:33:500
766399331,14cyclictest32410-21seq10:33:500
248262331,29sleep024840-21ssh09:52:000
112942331,28sleep011305-21ssh11:51:570
7664993213,10cyclictest22-21ksoftirqd/112:34:151
766399328,13cyclictest1913-21runrttasks09:28:580
766399327,5cyclictest81rcu_preempt12:53:340
766399325,4cyclictest81rcu_preempt08:29:110
766399324,5cyclictest81rcu_preempt11:30:370
766399324,4cyclictest81rcu_preempt10:41:250
766399323,4cyclictest81rcu_preempt12:01:350
766399323,15cyclictest29993-21iostat_ios08:20:200
7663993221,6cyclictest3934-21grep11:10:280
7663993213,6cyclictest18697-21ssh10:52:500
766399321,29cyclictest0-21swapper/008:30:350
766399321,28cyclictest0-21swapper/007:48:150
69722321,4sleep07046-21iostat08:45:180
292482321,4sleep129315-21iostat10:30:191
292482321,4sleep129315-21iostat10:30:181
123662321,4sleep012380-21ssh10:45:380
766499315,4cyclictest81rcu_preempt10:13:371
766499315,4cyclictest81rcu_preempt08:07:461
7664993116,5cyclictest22-21ksoftirqd/107:59:281
7664993114,6cyclictest22-21ksoftirqd/108:00:511
766399314,15cyclictest0-21swapper/011:55:120
7663993121,6cyclictest21835-21ssh12:36:020
766399312,15cyclictest8806-21ntp_states09:35:250
766399311,4cyclictest81rcu_preempt09:10:040
766399311,28cyclictest0-21swapper/008:43:160
766399311,13cyclictest9420-21ssh10:10:100
766499301,7cyclictest28718-21grep08:15:291
7664993017,7cyclictest18206-21diskstats07:50:141
766399305,13cyclictest81rcu_preempt11:15:110
766399302,4cyclictest81rcu_preempt12:46:540
766399302,15cyclictest10947-21irqstats07:30:200
766399302,13cyclictest3302-21runrttasks07:37:520
766399301,14cyclictest3481-21ntpq08:35:230
766399300,4cyclictest81rcu_preempt09:47:190
119312301,5sleep10-21swapper/107:33:431
766499295,8cyclictest8935-21iostat_ios08:50:191
766499293,10cyclictest11228-21python08:55:281
766399297,12cyclictest0-21swapper/012:18:300
7663992917,8cyclictest10150irq/91-xhci_hcd09:05:000
766399291,17cyclictest0-21swapper/008:00:260
766399291,14cyclictest6048-21tune2fs12:20:170
30962291,5sleep10-21swapper/112:50:411
270372291,5sleep10-21swapper/108:11:581
252642291,5sleep00-21swapper/008:08:020
78942281,5sleep10-21swapper/108:47:061
7664992812,6cyclictest22-21ksoftirqd/109:05:021
137182281,5sleep10-21swapper/109:03:581
7664992718,6cyclictest22-21ksoftirqd/108:36:231
766499253,6cyclictest30634-21grep08:20:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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