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2026-02-21 - 09:11
[ 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 #e, slot #6

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 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot6s.osadl.org (updated Sat Feb 21, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
117736399906,9cyclictest1228721-21apt-get00:10:010
117736399759,61cyclictest0-21swapper/023:35:260
117736399733,6cyclictest1204023-21grep21:40:290
1177363997231,3cyclictest20850irq/208-8000000.ethernet22:50:260
1177363997030,36cyclictest0-21swapper/019:54:590
117736399702,63cyclictest1186891-21unixbench_multi20:00:260
1177363996829,6cyclictest0-21swapper/022:55:290
1177363996530,4cyclictest0-21swapper/022:15:260
1177363996434,4cyclictest167350irq/118-8000000.ethernet-tx000:10:010
1177363996432,5cyclictest1210803-21unixbench_multi22:20:270
1177363996432,5cyclictest1210803-21unixbench_multi22:20:270
117736399641,38cyclictest0-21swapper/023:30:220
117736699635,37cyclictest0-21swapper/120:05:011
1177363996329,31cyclictest20850irq/208-8000000.ethernet21:15:220
117736399632,6cyclictest1205771-21grep21:55:010
117736399631,27cyclictest0-21swapper/020:35:010
117736399631,27cyclictest0-21swapper/020:35:010
117736699629,21cyclictest22-21rcuc/119:55:021
1177363996234,25cyclictest1204906-21munin-plugin-st21:50:000
1177363996123,10cyclictest0-21swapper/000:35:160
1177366996040,15cyclictest231ktimers/123:15:131
1177366996040,15cyclictest231ktimers/123:15:131
1177363995948,6cyclictest131ktimers/022:00:110
117736399591,38cyclictest1180960-21sed19:25:260
1177366995736,15cyclictest231ktimers/119:40:111
1177366995736,15cyclictest231ktimers/119:40:111
1177366995723,3cyclictest1226586-21kernelversion23:55:231
1177367995537,13cyclictest311ktimers/220:15:112
1177363995447,4cyclictest0-21swapper/021:30:120
1177363995432,2cyclictest200-21pr/ttyS220:39:590
117736799521,11cyclictest0-21swapper/220:20:182
117736799521,11cyclictest0-21swapper/220:20:182
1177366995219,12cyclictest14-21rcu_preempt23:45:011
1177363995142,5cyclictest167350irq/118-8000000.ethernet-tx000:00:250
1177367995034,11cyclictest311ktimers/200:25:142
117736799501,2cyclictest0-21swapper/222:30:012
1177367994945,2cyclictest0-21swapper/200:00:022
1177367994942,4cyclictest1218500-21munin-plugin-st23:10:002
1177367994931,13cyclictest0-21swapper/219:30:002
1177367994931,12cyclictest311ktimers/223:45:142
1177363994940,5cyclictest167350irq/118-8000000.ethernet-tx020:30:010
1177367994837,5cyclictest1230494-21sh00:20:002
1177367994730,12cyclictest311ktimers/221:20:112
117736799471,20cyclictest0-21swapper/223:55:002
117736799471,20cyclictest0-21swapper/200:10:012
1177366994733,8cyclictest0-21swapper/100:00:281
1177367994614,2cyclictest0-21swapper/222:10:282
1177366994628,10cyclictest0-21swapper/100:35:001
1177363994637,5cyclictest167350irq/118-8000000.ethernet-tx021:00:170
1177363994614,25cyclictest0-21swapper/019:10:010
1177363994614,25cyclictest0-21swapper/019:10:000
1177367994525,13cyclictest311ktimers/221:25:112
117736699459,5cyclictest1205740-21apt-get21:55:011
117736699459,5cyclictest1205740-21apt-get21:55:011
1177366994533,8cyclictest0-21swapper/120:35:011
1177366994533,8cyclictest0-21swapper/120:35:001
1177367994432,7cyclictest1210863-21grep22:20:262
1177367994432,7cyclictest1210863-21grep22:20:262
1177366994431,8cyclictest0-21swapper/121:15:281
1177366994420,15cyclictest231ktimers/119:35:111
1177363994437,3cyclictest0-21swapper/023:25:090
117736399441,2cyclictest0-21swapper/022:45:010
1177367994332,7cyclictest311ktimers/220:05:122
1177367994329,10cyclictest311ktimers/223:20:102
1177366994336,4cyclictest1228718-21cron00:09:591
117736699432,31cyclictest0-21swapper/100:10:231
1177363994336,4cyclictest167350irq/118-8000000.ethernet-tx000:00:010
1177363994335,5cyclictest0-21swapper/023:05:150
1177367994222,11cyclictest0-21swapper/223:20:022
1177367994222,11cyclictest0-21swapper/223:20:022
1177363994236,3cyclictest167350irq/118-8000000.ethernet-tx000:20:120
1177363994236,2cyclictest0-21swapper/019:20:210
1177363994234,5cyclictest1195566-21grep20:50:270
1177363994228,11cyclictest1196348-21unixbench_multi20:55:280
117736399421,2cyclictest0-21swapper/022:10:000
117736799417,9cyclictest0-21swapper/222:55:022
117736699415,9cyclictest1193842-21apt-get20:45:021
117736699415,9cyclictest1193842-21apt-get20:45:021
117736699415,23cyclictest24-21ksoftirqd/119:25:021
1177366994130,8cyclictest1205686-21grep21:50:271
1177366994123,12cyclictest231ktimers/119:50:101
117736399411,38cyclictest0-21swapper/019:10:250
1177367994031,4cyclictest1199715-21grep21:15:282
117736799401,4cyclictest0-21swapper/219:20:022
1177366994031,6cyclictest14-21rcu_preempt20:50:001
1177363994031,5cyclictest167350irq/118-8000000.ethernet-tx021:10:010
1177363994029,8cyclictest0-21swapper/023:45:280
1177363994028,8cyclictest0-21swapper/022:10:280
117736399402,36cyclictest0-21swapper/019:55:260
1177363994022,13cyclictest0-21swapper/023:45:010
1177363994019,19cyclictest0-21swapper/019:30:280
117736399401,4cyclictest1232932-21sed00:30:290
117736399401,37cyclictest0-21swapper/020:40:250
117736399401,37cyclictest0-21swapper/020:40:240
1177367993930,7cyclictest1178108-21unixbench_singl19:10:282
1177366993933,4cyclictest0-21swapper/123:00:001
1177366993919,14cyclictest231ktimers/122:40:101
117736699391,3cyclictest0-21swapper/100:30:011
1177363993931,5cyclictest0-21swapper/020:20:220
1177363993931,5cyclictest0-21swapper/020:20:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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