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2026-02-06 - 11:09
[ 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 #5, 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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  Intel
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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack5slot4s.osadl.org (updated Fri Feb 06, 2026 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163154623620,6sleep3451irq_work/322:44:573
161799922900,2sleep3471rcuc/322:30:003
158422721940,5sleep30-21swapper/321:59:503
141526199132124,6cyclictest1447590-21kworker/u8:0+events_unbound20:00:030
141526199132124,6cyclictest1447590-21kworker/u8:0+events_unbound20:00:030
14117762820,5chrt371rcuc/219:09:542
15088832720,1chrt1508885-21ps20:44:550
1415263997167,3cyclictest1619176-21kworker/u8:3+events_unbound23:49:561
1415261996964,3cyclictest1542892-21kworker/u8:0+flush-8:021:30:010
1415261996864,3cyclictest1608878-21kworker/u8:2+flush-8:023:00:010
1415261996756,8cyclictest1728039-21apt-get00:25:000
1415261996660,4cyclictest1491659-21kworker/u8:3+flush-8:021:15:050
1415266996558,5cyclictest1557652-21apt-get21:30:032
1415263996559,4cyclictest1658619-21kworker/u8:2+flush-8:023:40:041
1415263996459,3cyclictest1467637-21kworker/u8:1+flush-8:021:25:021
1415261996353,7cyclictest1718454-21latency_hist00:15:010
1415261996350,10cyclictest1567882-21latency_hist21:40:010
1415261996257,4cyclictest588394-21kworker/u8:0+flush-8:019:25:050
1415261996156,3cyclictest1491659-21kworker/u8:3+flush-8:021:09:570
1415261996154,5cyclictest1491659-21kworker/u8:3+flush-8:020:50:000
1415263996055,4cyclictest1467637-21kworker/u8:1+flush-8:020:29:561
1415263996055,4cyclictest1467637-21kworker/u8:1+flush-8:020:29:561
1415261996055,3cyclictest1619176-21kworker/u8:3+events_unbound23:15:010
14792502590,2sleep3471rcuc/320:14:563
14792502590,2sleep3471rcuc/320:14:563
1415266995950,6cyclictest1673581-21latency_hist23:30:012
1415261995954,3cyclictest1542892-21kworker/u8:0+events_unbound21:24:560
1415261995953,4cyclictest1734775-21kworker/u8:1+events_unbound00:40:000
1415261995953,4cyclictest1588642-21kworker/u8:3+flush-8:022:09:550
1415261995953,4cyclictest1507785-21kworker/u8:0+flush-8:020:55:020
1415261995851,5cyclictest1497741-21kworker/u8:2+events_unbound20:35:020
1415263995752,3cyclictest1619176-21kworker/u8:3+flush-8:023:55:021
1415263995752,3cyclictest1619176-21kworker/u8:3+flush-8:023:55:021
1415266995635,18cyclictest1542422-21awk21:15:002
1415263995651,4cyclictest588394-21kworker/u8:0+flush-8:019:29:511
1415261995652,3cyclictest1542892-21kworker/u8:0+flush-8:022:45:000
1415261995652,3cyclictest1438228-21kworker/u8:2+flush-8:019:45:010
1415261995651,4cyclictest1542892-21kworker/u8:0+flush-8:022:20:050
1415261995651,3cyclictest1658619-21kworker/u8:2+flush-8:000:05:000
1415261995651,3cyclictest1619176-21kworker/u8:3+flush-8:023:09:560
1415261995550,3cyclictest1542892-21kworker/u8:0+events_unbound22:05:010
1415261995548,6cyclictest1491659-21kworker/u8:3+flush-8:020:50:020
1415261995548,5cyclictest1658619-21kworker/u8:2+flush-8:023:59:580
1415261995548,5cyclictest1658619-21kworker/u8:2+flush-8:023:59:570
1415261995450,3cyclictest1447590-21kworker/u8:0+flush-8:020:05:060
1415261995450,3cyclictest1447590-21kworker/u8:0+flush-8:020:05:060
1415261995448,5cyclictest1447590-21kworker/u8:0+events_unbound20:14:550
1415261995448,5cyclictest1447590-21kworker/u8:0+events_unbound20:14:550
1415261995447,5cyclictest588394-21kworker/u8:0+flush-8:019:30:050
1415263995346,5cyclictest1563699-21kworker/u8:2+flush-8:021:40:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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