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2026-01-21 - 04:08
[ 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 Jan 21, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
748434212662,59sleep30-21swapper/319:06:083
94872021230,1sleep0221rcuc/022:15:140
74858928856,9sleep20-21swapper/219:08:032
74846928053,19sleep00-21swapper/019:06:330
74853827864,9sleep10-21swapper/119:07:221
748882992319,2cyclictest0-21swapper/323:15:203
748882992118,1cyclictest0-21swapper/322:05:153
74888299211,15cyclictest0-21swapper/322:24:333
74888299206,9cyclictest1002726-21taskset23:05:153
74888299202,12cyclictest894306-21taskset21:25:113
748882992017,1cyclictest0-21swapper/300:30:003
748882992014,3cyclictest1031841-21turbostat23:35:003
748882992013,3cyclictest920316-21sleep21:50:013
74888299201,14cyclictest0-21swapper/320:06:233
74888299201,14cyclictest0-21swapper/320:06:233
74888299198,8cyclictest845829-21chrt20:38:133
74888299198,4cyclictest228-1kworker/3:1H+kblockd23:20:263
748882991916,1cyclictest0-21swapper/323:25:163
748882991916,1cyclictest0-21swapper/319:25:153
748882991915,2cyclictest0-21swapper/321:00:003
748882991915,2cyclictest0-21swapper/300:00:003
74888299191,14cyclictest0-21swapper/322:19:103
74888299191,14cyclictest0-21swapper/319:46:303
74888299182,10cyclictest867710-21taskset21:00:023
748882991815,1cyclictest0-21swapper/321:15:003
748882991814,2cyclictest0-21swapper/320:00:153
748882991811,4cyclictest0-21swapper/322:42:503
74888299181,13cyclictest984063-21chrt22:50:123
74888299181,13cyclictest0-21swapper/300:35:113
74888299181,12cyclictest1063486-21taskset00:04:553
9950902175,8sleep0995273-21expr23:00:120
748882991715,1cyclictest0-21swapper/300:20:113
74888299171,4cyclictest0-21swapper/321:30:123
748882991714,2cyclictest0-21swapper/321:35:113
748882991714,1cyclictest0-21swapper/323:35:163
748882991714,1cyclictest0-21swapper/319:50:163
748882991713,2cyclictest0-21swapper/320:55:003
748882991713,2cyclictest0-21swapper/320:30:213
748882991713,2cyclictest0-21swapper/320:20:153
748882991712,3cyclictest0-21swapper/320:10:113
74888299171,13cyclictest0-21swapper/322:45:123
74888299171,13cyclictest0-21swapper/300:05:203
74888299171,12cyclictest968093-21sleep22:35:003
74888299171,12cyclictest766561-21turbostat19:25:003
74888299171,12cyclictest1047871-21chrt23:50:123
74888299171,12cyclictest1000051-21turbostat23:05:003
74888299171,12cyclictest0-21swapper/323:10:113
74888299171,12cyclictest0-21swapper/322:25:113
74888299171,11cyclictest930778-21sleep22:00:003
74888299171,11cyclictest856453-21taskset20:49:563
74888299171,10cyclictest883733-21taskset21:15:013
74888299170,14cyclictest782280-21sleep19:44:553
74888299170,13cyclictest0-21swapper/321:05:123
9097302161,10sleep1909869-21cat21:40:011
9052802161,11sleep0905848-21cut21:35:150
7812702161,10sleep1781326-21ntpq19:35:201
748882991613,1cyclictest0-21swapper/300:30:143
74888299161,13cyclictest0-21swapper/320:25:193
748882991610,3cyclictest0-21swapper/320:40:123
74888299160,14cyclictest0-21swapper/323:45:133
74888299160,13cyclictest0-21swapper/323:40:213
74888299160,13cyclictest0-21swapper/322:35:113
74888299160,13cyclictest0-21swapper/319:55:253
74888299160,13cyclictest0-21swapper/319:14:473
74888299160,12cyclictest0-21swapper/319:15:103
74888299160,10cyclictest824457-21taskset20:16:253
9794112151,9sleep0980994-21cut22:45:170
8341762151,10sleep2834223-21ntpq20:25:192
74888299156,5cyclictest910012-21taskset21:40:103
74888299151,9cyclictest925276-21taskset21:51:563
74888299151,9cyclictest893904-21taskset21:23:263
74888299151,11cyclictest782259-21turbostat19:40:003
748882991510,3cyclictest0-21swapper/319:30:103
74888299150,12cyclictest0-21swapper/322:55:013
74888299150,12cyclictest0-21swapper/322:00:203
10273682151,9sleep01028457-21cut23:30:140
8786902140,3sleep10-21swapper/121:10:141
8562932141,8sleep12831240-21snmpd20:47:541
8431052141,5sleep2844777-21wc20:35:172
7760992141,8sleep2776153-21ntp_states19:30:202
74888299148,4cyclictest0-21swapper/300:10:133
74888299141,9cyclictest941685-21chrt22:10:123
10749832141,8sleep21076658-21cut00:15:172
10741962140,2sleep10-21swapper/100:15:121
10423572141,8sleep01042540-21latency_hist23:45:010
10119762141,9sleep01013697-21cut23:15:150
9785482131,8sleep0978661-21latency_hist22:45:010
9678592131,8sleep1967861-21sshd22:32:311
8607162137,3sleep2860775-21ntpq20:50:202
7673082131,9sleep1767384-21uname19:25:141
7621762130,8sleep2763788-21grep19:20:142
74888299131,9cyclictest1074193-21chrt00:15:093
9349722122,5sleep0935022-21ntpq22:00:200
8928672121,6sleep2893008-21ntpq21:20:182
8357442121,6sleep1835996-21df20:30:111
10834442121,7sleep11083490-21ntpq00:20:211
10737012120,1sleep20-21swapper/200:12:042
10578602120,1sleep20-21swapper/223:57:332
9775712111,5sleep1977620-21ntpq22:40:211
9563772111,4sleep0956436-21ntp_states22:20:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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