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2026-03-01 - 23:10
[ 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 #3, slot #3

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 100 highest latencies:
System rack3slot3s.osadl.org (updated Sun Mar 01, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2343516212641,80sleep30-21swapper/307:09:073
234350028754,11sleep20-21swapper/207:08:542
234340528365,12sleep10-21swapper/107:07:411
234354228060,14sleep00-21swapper/007:09:240
25504082250,3sleep10-21swapper/109:50:221
24788922232,6sleep02478949-21ntpq09:10:200
2343704992219,1cyclictest0-21swapper/307:35:543
2343704992218,2cyclictest0-21swapper/310:13:083
2343704992218,2cyclictest0-21swapper/309:35:203
27643992211,9sleep22764414-21ssh11:50:502
2343704992117,2cyclictest0-21swapper/310:50:123
234370499211,16cyclictest2551348-21taskset09:51:003
234370499211,16cyclictest0-21swapper/312:27:293
234370499211,13cyclictest0-21swapper/310:07:583
234370499210,18cyclictest0-21swapper/312:03:113
2343704992012,5cyclictest0-21swapper/312:13:003
234370499201,15cyclictest2695716-21taskset11:13:383
234370499201,15cyclictest0-21swapper/311:58:013
234370499201,15cyclictest0-21swapper/311:58:003
234370499201,15cyclictest0-21swapper/311:51:273
234370499201,15cyclictest0-21swapper/310:02:273
234370499201,15cyclictest0-21swapper/310:02:273
25803962191,3sleep10-21swapper/110:08:581
234370499192,13cyclictest0-21swapper/308:04:483
234370499192,13cyclictest0-21swapper/308:04:473
2343704991916,1cyclictest0-21swapper/312:15:123
2343704991915,2cyclictest0-21swapper/307:30:193
2343704991913,4cyclictest0-21swapper/310:23:283
234370499191,15cyclictest2545485-21taskset09:49:503
234370499191,15cyclictest0-21swapper/311:24:203
234370499191,15cyclictest0-21swapper/309:27:283
234370499191,14cyclictest0-21swapper/312:30:093
234370499191,14cyclictest0-21swapper/311:41:163
234370499191,14cyclictest0-21swapper/310:40:213
234370499191,14cyclictest0-21swapper/310:25:313
234370499191,14cyclictest0-21swapper/308:08:023
234370499191,14cyclictest0-21swapper/307:45:123
234370499190,16cyclictest0-21swapper/309:15:203
27933042181,3sleep20-21swapper/212:08:452
27676662180,10sleep02767773-21latency_hist11:55:010
25815782181,5sleep12581609-21ssh10:10:111
25678952181,6sleep02568013-21ntpq10:00:200
25678952181,6sleep02568013-21ntpq10:00:190
25526202181,3sleep00-21swapper/009:52:380
2343704991815,1cyclictest0-21swapper/311:45:143
234370499181,14cyclictest0-21swapper/312:07:473
234370499181,14cyclictest0-21swapper/311:36:493
234370499181,14cyclictest0-21swapper/311:33:313
234370499181,14cyclictest0-21swapper/311:25:143
234370499181,14cyclictest0-21swapper/311:15:083
234370499181,14cyclictest0-21swapper/311:08:373
234370499181,14cyclictest0-21swapper/310:55:523
234370499181,14cyclictest0-21swapper/310:39:223
234370499181,14cyclictest0-21swapper/310:32:093
234370499181,14cyclictest0-21swapper/310:15:103
234370499181,14cyclictest0-21swapper/309:55:463
234370499181,14cyclictest0-21swapper/309:30:233
234370499181,14cyclictest0-21swapper/309:23:513
234370499181,14cyclictest0-21swapper/309:13:523
234370499181,13cyclictest2670645-21taskset11:00:113
2343704991810,4cyclictest28196232sleep312:22:583
27056542171,4sleep02705760-21cat11:20:010
26327702171,12sleep12474285-21diskmemload10:37:331
24888792171,2sleep00-21swapper/009:15:380
234370499171,4cyclictest0-21swapper/307:10:313
2343704991712,3cyclictest0-21swapper/310:45:443
234370499171,14cyclictest0-21swapper/312:36:523
234370499171,13cyclictest0-21swapper/308:10:123
234370499171,12cyclictest2441851-21taskset08:35:283
234370499171,12cyclictest24259332sleep308:21:493
28372162161,5sleep02837230-21ssh12:32:490
27769302161,2sleep10-21swapper/112:00:111
27679812160,2sleep10-21swapper/111:55:061
27679812160,2sleep10-21swapper/111:55:051
27217792161,3sleep02474285-21diskmemload11:27:590
27208712160,3sleep22474285-21diskmemload11:26:482
26605902161,3sleep02474285-21diskmemload10:53:590
26048792161,3sleep02474285-21diskmemload10:21:110
25458832160,2sleep20-21swapper/209:50:042
25011182161,1sleep20-21swapper/209:24:532
2343704991614,1cyclictest0-21swapper/309:05:173
234370499161,13cyclictest0-21swapper/309:40:563
2343704991611,2cyclictest0-21swapper/308:30:363
234370499160,13cyclictest0-21swapper/308:50:173
234370499160,13cyclictest0-21swapper/308:15:193
234370499160,13cyclictest0-21swapper/307:25:203
28457802150,1sleep20-21swapper/212:37:282
27925102151,3sleep12474285-21diskmemload12:07:431
27479362150,2sleep00-21swapper/011:42:260
26527652151,9sleep12474285-21diskmemload10:50:031
26524752151,9sleep22652624-21grep10:50:002
25174162151,2sleep20-21swapper/209:33:032
25069182151,8sleep12474285-21diskmemload09:25:571
23605532151,9sleep02360597-21ntpq07:20:180
2343704991512,2cyclictest0-21swapper/308:25:173
234370499151,12cyclictest0-21swapper/309:00:143
234370499151,11cyclictest0-21swapper/308:55:193
234370499150,13cyclictest0-21swapper/307:15:023
234370499150,12cyclictest0-21swapper/308:45:213
234370499150,12cyclictest0-21swapper/307:50:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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