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2026-02-24 - 19:02
[ 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 all highest latencies:
System rack9slot4s (updated Tue Feb 24, 2026 12:59:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318819911591150,6cyclictest0-21swapper/107:26:271
318809911121073,36cyclictest3286-21kworker/0:107:26:380
315792679633,31sleep00-21swapper/007:22:310
317102486441,30sleep10-21swapper/107:23:531
2863621100,4sleep00-21swapper/010:37:540
179682790,7sleep13188199cyclictest10:26:271
229702780,8sleep03188099cyclictest11:05:210
119272760,5sleep1211ktimersoftd/109:14:161
268962630,5sleep026899-21proc_pri12:50:260
31881996016,6cyclictest22-21ksoftirqd/110:41:081
31881996015,5cyclictest22-21ksoftirqd/110:09:461
31881995915,5cyclictest22-21ksoftirqd/110:50:301
31881995914,6cyclictest22-21ksoftirqd/112:37:411
31881995814,5cyclictest22-21ksoftirqd/109:42:271
31881995813,6cyclictest22-21ksoftirqd/111:33:481
31881995714,6cyclictest22-21ksoftirqd/111:25:411
31881995714,6cyclictest22-21ksoftirqd/109:58:181
31881995714,5cyclictest22-21ksoftirqd/109:37:081
31881995619,6cyclictest22-21ksoftirqd/111:20:181
31881995613,15cyclictest22-21ksoftirqd/111:17:031
31881995414,6cyclictest22-21ksoftirqd/109:53:521
196572540,6sleep00-21swapper/008:15:140
31881995312,6cyclictest22-21ksoftirqd/112:29:391
31881995310,6cyclictest22-21ksoftirqd/109:22:291
31881995225,4cyclictest22-21ksoftirqd/112:25:011
31881995215,6cyclictest22-21ksoftirqd/111:06:571
31881995215,17cyclictest22-21ksoftirqd/109:31:061
31881995119,4cyclictest22-21ksoftirqd/110:46:361
31881995116,6cyclictest22-21ksoftirqd/110:24:531
31881995116,5cyclictest22-21ksoftirqd/112:43:221
31881995115,6cyclictest22-21ksoftirqd/111:50:341
31881995115,6cyclictest22-21ksoftirqd/110:01:011
31881995115,18cyclictest22-21ksoftirqd/112:18:151
31881995114,6cyclictest22-21ksoftirqd/110:30:321
31881995112,10cyclictest22-21ksoftirqd/110:37:021
31881995022,4cyclictest22-21ksoftirqd/112:11:021
31881995017,6cyclictest22-21ksoftirqd/108:50:141
31881995017,6cyclictest22-21ksoftirqd/108:20:141
31881995017,5cyclictest22-21ksoftirqd/108:58:011
31881995016,6cyclictest22-21ksoftirqd/112:04:541
31881995014,18cyclictest22-21ksoftirqd/111:47:141
31881995013,18cyclictest22-21ksoftirqd/111:44:301
31881995013,18cyclictest22-21ksoftirqd/110:13:021
31881994926,12cyclictest22-21ksoftirqd/108:30:111
31881994917,5cyclictest22-21ksoftirqd/108:35:131
31881994916,6cyclictest22-21ksoftirqd/111:55:141
31881994914,6cyclictest22-21ksoftirqd/112:53:581
31881994914,5cyclictest22-21ksoftirqd/111:35:421
31881994914,18cyclictest22-21ksoftirqd/110:15:491
31881994817,6cyclictest22-21ksoftirqd/112:05:241
31881994813,6cyclictest22-21ksoftirqd/109:00:241
31881994813,14cyclictest22-21ksoftirqd/109:25:041
3188099481,17cyclictest4779-21taskset12:26:180
3188199479,6cyclictest22-21ksoftirqd/112:45:141
3188199476,5cyclictest22-21ksoftirqd/109:48:171
31881994716,9cyclictest22-21ksoftirqd/112:34:341
31881994716,6cyclictest22-21ksoftirqd/107:30:261
31881994715,6cyclictest22-21ksoftirqd/111:04:011
31881994712,6cyclictest22-21ksoftirqd/108:10:251
31881994712,18cyclictest22-21ksoftirqd/110:57:431
31881994711,5cyclictest22-21ksoftirqd/111:12:001
31881994614,6cyclictest22-21ksoftirqd/109:15:331
31881994515,6cyclictest22-21ksoftirqd/108:05:161
195912450,7sleep03188099cyclictest12:08:570
3188199448,6cyclictest22-21ksoftirqd/108:01:321
3188199446,6cyclictest3302-21runrttasks09:05:141
3188199444,6cyclictest13575-21pidof08:00:011
31881994413,5cyclictest22-21ksoftirqd/107:48:361
3188199437,6cyclictest9978-21/usr/sbin/munin07:50:221
31881994324,4cyclictest22-21ksoftirqd/108:40:271
31881994314,6cyclictest22-21ksoftirqd/107:43:301
31881994313,6cyclictest22-21ksoftirqd/108:45:191
31881994225,4cyclictest22-21ksoftirqd/108:15:271
31881994225,4cyclictest22-21ksoftirqd/107:35:231
3188199407,6cyclictest22-21ksoftirqd/108:25:291
3188099377,19cyclictest0-21swapper/011:23:320
3188099362,5cyclictest0-21swapper/010:14:150
235812361,4sleep023650-21ssh09:25:290
3188099356,25cyclictest12071-21cat12:34:550
31880993527,5cyclictest21932-21ssh11:04:560
3188099352,4cyclictest81rcu_preempt12:01:410
3188099352,29cyclictest0-21swapper/012:36:560
3188099351,6cyclictest1000-21ssh11:15:350
3188099351,30cyclictest24333-21fschecks_time11:40:160
31880993510,13cyclictest14133-21cut11:30:100
3188099346,5cyclictest81rcu_preempt08:40:260
3188099342,20cyclictest0-21swapper/009:36:010
3188099342,15cyclictest3302-21runrttasks12:40:570
3188099342,15cyclictest0-21swapper/012:15:120
3188099341,14cyclictest31725-21users12:20:320
3188099336,13cyclictest81rcu_preempt09:59:500
3188099333,4cyclictest81rcu_preempt10:43:050
3188099333,17cyclictest0-21swapper/010:00:130
31880993325,5cyclictest0-21swapper/011:35:360
3188099332,4cyclictest81rcu_preempt10:15:380
31880993318,7cyclictest0-21swapper/010:29:350
31880993315,14cyclictest3-21ksoftirqd/009:15:200
3188099331,4cyclictest81rcu_preempt12:48:460
3188099331,4cyclictest11446-21ssh09:13:350
3188099331,3cyclictest81rcu_preempt10:46:590
3188099331,30cyclictest0-21swapper/008:20:360
31880993310,19cyclictest0-21swapper/010:22:460
3188099328,12cyclictest28717-21aten_r4power_en11:45:130
3188099324,4cyclictest81rcu_preempt11:59:440
3188099323,4cyclictest81rcu_preempt12:11:420
3188099323,4cyclictest81rcu_preempt10:51:450
3188099323,4cyclictest81rcu_preempt10:07:110
3188099323,4cyclictest81rcu_preempt09:47:010
3188099322,4cyclictest81rcu_preempt11:27:420
3188099322,4cyclictest81rcu_preempt11:11:120
3188099321,5cyclictest0-21swapper/008:04:550
3188099321,4cyclictest81rcu_preempt08:32:030
3188099321,29cyclictest0-21swapper/011:54:160
3188099321,29cyclictest0-21swapper/008:48:550
3188099321,29cyclictest0-21swapper/008:10:350
3188099321,12cyclictest2403-21irqbalance09:20:250
3188099321,12cyclictest16490-21ssh09:51:370
3188099321,11cyclictest0-21swapper/010:32:280
31880993122,5cyclictest12644-21/usr/sbin/munin07:55:240
3188099312,15cyclictest28419-21python09:30:270
3188099311,4cyclictest81rcu_preempt09:09:520
3188099311,4cyclictest0-21swapper/009:02:350
3188099307,11cyclictest28274-21taskset08:36:310
31880993011,6cyclictest6387-21cut07:40:140
3188099301,15cyclictest32553-21/usr/sbin/munin08:50:190
245482301,5sleep00-21swapper/008:26:470
64392291,5sleep00-21swapper/009:41:030
3188099295,4cyclictest81rcu_preempt10:55:120
31880992911,8cyclictest2606-21iostat_ios08:55:200
114472291,5sleep00-21swapper/007:52:330
39162281,5sleep00-21swapper/007:34:490
170082281,5sleep00-21swapper/008:06:390
57362271,5sleep00-21swapper/007:38:510
3188099261,12cyclictest9056-21sendmail_mailst07:45:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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