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2026-02-25 - 19:55
[ 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 Wed Feb 25, 2026 12:43:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
467712995857,1cyclictest0-21swapper/310:10:533
46770699589,44cyclictest1926375-21kworker/1:3-mm_percpu_wq11:07:101
46770699580,34cyclictest0-21swapper/111:50:181
46770399581,17cyclictest0-21swapper/011:12:200
467706995752,3cyclictest311ktimers/112:32:421
467712995654,1cyclictest870630-21sh11:52:563
467706995652,3cyclictest311ktimers/111:55:561
46770399566,7cyclictest627907-21diskmemload09:30:440
467706995552,2cyclictest311ktimers/111:40:171
467706995552,2cyclictest311ktimers/110:29:331
467712995453,1cyclictest0-21swapper/308:18:473
467706995450,3cyclictest311ktimers/109:20:231
46770699540,1cyclictest0-21swapper/112:07:241
46770699540,19cyclictest1926375-21kworker/1:3-events_power_efficient09:15:321
467712995352,1cyclictest0-21swapper/307:56:133
467706995351,1cyclictest0-21swapper/109:52:471
467706995350,2cyclictest311ktimers/109:26:081
467706995349,3cyclictest311ktimers/111:21:521
467703995351,1cyclictest0-21swapper/008:11:190
46770399530,11cyclictest0-21swapper/009:57:160
467706995249,2cyclictest311ktimers/111:16:371
467706995249,2cyclictest311ktimers/110:55:201
467706995248,3cyclictest311ktimers/109:10:461
46770699511,13cyclictest1926375-21kworker/1:3+events_power_efficient07:30:121
467706995047,2cyclictest311ktimers/110:05:461
467706995047,2cyclictest311ktimers/109:42:401
467706995047,2cyclictest311ktimers/109:32:381
467706995046,3cyclictest311ktimers/110:50:451
467706995035,13cyclictest311ktimers/110:22:181
467712994948,1cyclictest0-21swapper/308:26:183
467706994946,2cyclictest311ktimers/112:15:081
467706994946,2cyclictest311ktimers/111:34:111
467706994946,2cyclictest311ktimers/110:31:281
467706994946,2cyclictest311ktimers/110:11:191
46770399499,8cyclictest472848-21/usr/sbin/munin07:15:230
46770399497,16cyclictest588338-21diskmemload10:06:260
467703994946,2cyclictest0-21swapper/011:57:000
467712994841,6cyclictest588338-21diskmemload09:21:503
467706994845,2cyclictest311ktimers/112:10:561
467706994845,2cyclictest311ktimers/111:38:061
467706994845,2cyclictest311ktimers/107:45:221
46770999471,40cyclictest731355-21sh10:30:452
467706994744,2cyclictest311ktimers/112:36:491
467706994710,34cyclictest471578-21ntpq07:10:191
46771299460,46cyclictest0-21swapper/311:36:373
467706994643,2cyclictest311ktimers/111:27:181
467706994643,2cyclictest311ktimers/111:27:171
467706994643,2cyclictest311ktimers/110:47:361
467706994640,3cyclictest311ktimers/110:02:311
46770699460,25cyclictest0-21swapper/109:56:141
467706994541,3cyclictest311ktimers/111:00:471
46770399458,36cyclictest588338-21diskmemload10:02:550
467703994513,30cyclictest821305-21perl11:25:130
467703994513,30cyclictest821305-21perl11:25:130
46770399450,1cyclictest0-21swapper/007:10:110
467706994441,2cyclictest311ktimers/111:13:121
46770399441,2cyclictest854376-21sh11:44:070
467706994340,2cyclictest311ktimers/112:29:101
467703994331,11cyclictest777-21snmpd12:27:240
46770399430,39cyclictest595518-21sh09:13:160
467712994241,1cyclictest0-21swapper/311:23:023
46771299420,36cyclictest903497-21ssh12:11:123
467706994239,2cyclictest311ktimers/107:55:121
467706994237,3cyclictest311ktimers/109:45:441
46770399427,34cyclictest0-21swapper/012:18:460
467703994234,6cyclictest497541-31sort07:40:040
467709994138,2cyclictest401ktimers/208:14:542
46770699419,1cyclictest171rcu_preempt09:36:551
467706994138,2cyclictest311ktimers/110:43:411
467706994137,3cyclictest311ktimers/110:18:001
467706994122,11cyclictest281irq_work/111:49:211
46770399416,22cyclictest0-21swapper/011:48:190
467703994122,3cyclictest8100782sleep011:17:390
46770399410,4cyclictest0-21swapper/009:51:380
467706994038,1cyclictest0-21swapper/107:51:521
467706994037,2cyclictest311ktimers/112:20:351
467706994036,3cyclictest311ktimers/110:37:341
46770399408,31cyclictest588338-21diskmemload09:16:020
46770399405,2cyclictest657381-21rm09:49:550
46770399403,12cyclictest775579-21sh10:57:270
46770399391,34cyclictest813529-21kthreadcore11:20:150
467712993837,1cyclictest0-21swapper/311:15:273
46770999389,27cyclictest631320-21apt-get09:35:022
467709993834,3cyclictest401ktimers/208:40:142
467709993814,17cyclictest812340-21sh11:20:102
467703993834,3cyclictest151ktimers/010:15:560
46770399382,16cyclictest833407-21ntpq11:30:220
467712993734,2cyclictest0-21swapper/307:39:563
467709993734,2cyclictest401ktimers/207:54:402
467709993728,7cyclictest779-21runrttasks12:23:192
46770399378,22cyclictest741-21ntpd11:06:430
46770399373,6cyclictest906321-21sh12:14:450
46770399370,3cyclictest0-21swapper/010:43:070
467712993631,1cyclictest654152-21ssh09:45:503
467709993632,3cyclictest401ktimers/209:15:442
46770999362,1cyclictest591367-21kthreadcore09:10:172
467706993632,3cyclictest311ktimers/112:02:551
46770699360,1cyclictest0-21swapper/108:56:011
46770399364,2cyclictest505269-21cut07:45:180
467703993633,2cyclictest777-21snmpd11:36:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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