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2026-02-09 - 10:25
[ 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 #c, slot #8

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 rackcslot8s.osadl.org (updated Mon Feb 09, 2026 00:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391630,30ptp4l0-21swapper/119:05:391
111391610,29ptp4l0-21swapper/019:05:550
164626050,6sleep70-21swapper/719:07:207
216642590,0sleep00-21swapper/000:00:210
15212570,0sleep30-21swapper/322:49:523
15212570,0sleep30-21swapper/322:49:513
111391570,6ptp4l0-21swapper/519:07:395
108782570,0sleep30-21swapper/321:32:523
170325635,6sleep20-21swapper/219:08:042
1881915534,6phc2sys0-21swapper/619:06:046
111391530,4ptp4l0-21swapper/419:06:064
150124730,12sleep30-21swapper/319:05:323
111391380,0ptp4l0-21swapper/023:35:150
111391360,0ptp4l0-21swapper/000:15:140
111391350,0ptp4l0-21swapper/023:00:210
111391340,3ptp4l23194-21latency_hist22:35:010
111391320,0ptp4l0-21swapper/123:03:591
111391320,0ptp4l0-21swapper/121:26:541
111391320,0ptp4l0-21swapper/021:10:160
111391310,2ptp4l0-21swapper/021:33:260
111391310,0ptp4l0-21swapper/723:52:067
111391310,0ptp4l0-21swapper/022:37:330
111391310,0ptp4l0-21swapper/021:16:570
111391300,0ptp4l0-21swapper/521:50:215
111391300,0ptp4l0-21swapper/023:57:410
111391300,0ptp4l0-21swapper/022:10:190
111391300,0ptp4l0-21swapper/019:30:110
301992290,1sleep41068-21runrttasks00:13:474
111391290,0ptp4l0-21swapper/520:55:115
111391290,0ptp4l0-21swapper/423:13:394
111391290,0ptp4l0-21swapper/423:09:164
111391290,0ptp4l0-21swapper/121:46:431
111391290,0ptp4l0-21swapper/023:46:430
111391290,0ptp4l0-21swapper/023:26:300
111391290,0ptp4l0-21swapper/022:25:220
111391290,0ptp4l0-21swapper/021:55:190
111391290,0ptp4l0-21swapper/021:28:440
111391290,0ptp4l0-21swapper/020:15:160
111391290,0ptp4l0-21swapper/000:14:050
111391280,2ptp4l0-21swapper/023:13:100
111391280,0ptp4l0-21swapper/422:37:404
111391280,0ptp4l0-21swapper/422:15:434
111391280,0ptp4l0-21swapper/422:06:044
111391280,0ptp4l0-21swapper/123:13:011
111391280,0ptp4l0-21swapper/122:03:251
111391280,0ptp4l0-21swapper/121:51:121
111391280,0ptp4l0-21swapper/121:39:191
111391280,0ptp4l0-21swapper/023:51:270
111391280,0ptp4l0-21swapper/023:21:590
111391280,0ptp4l0-21swapper/023:09:000
111391280,0ptp4l0-21swapper/022:51:590
111391280,0ptp4l0-21swapper/022:51:580
111391280,0ptp4l0-21swapper/022:44:080
111391270,0ptp4l0-21swapper/521:42:435
111391270,0ptp4l0-21swapper/423:49:574
111391270,0ptp4l0-21swapper/422:21:374
111391270,0ptp4l0-21swapper/422:13:484
111391270,0ptp4l0-21swapper/421:49:044
111391270,0ptp4l0-21swapper/400:29:304
111391270,0ptp4l0-21swapper/122:23:401
111391270,0ptp4l0-21swapper/100:39:181
111391270,0ptp4l0-21swapper/023:32:490
111391270,0ptp4l0-21swapper/022:55:410
111391270,0ptp4l0-21swapper/022:06:400
111391270,0ptp4l0-21swapper/021:54:020
111391270,0ptp4l0-21swapper/021:22:310
111391260,1ptp4l12645-21sh21:35:174
111391260,0ptp4l0-21swapper/700:10:177
111391260,0ptp4l0-21swapper/521:20:115
111391260,0ptp4l0-21swapper/423:29:324
111391260,0ptp4l0-21swapper/423:21:114
111391260,0ptp4l0-21swapper/423:18:024
111391260,0ptp4l0-21swapper/422:59:564
111391260,0ptp4l0-21swapper/422:34:094
111391260,0ptp4l0-21swapper/421:56:404
111391260,0ptp4l0-21swapper/122:44:021
111391260,0ptp4l0-21swapper/023:41:040
111391260,0ptp4l0-21swapper/020:05:180
111391260,0ptp4l0-21swapper/020:05:170
111391260,0ptp4l0-21swapper/000:36:050
111391260,0ptp4l0-21swapper/000:33:440
111391260,0ptp4l0-21swapper/000:25:560
111391250,5ptp4l0-21swapper/200:30:402
111391250,1ptp4l29569-21latency_hist21:14:594
111391250,1ptp4l16648-21date19:40:014
111391250,0ptp4l0-21swapper/622:35:146
111391250,0ptp4l0-21swapper/522:23:285
111391250,0ptp4l0-21swapper/520:35:135
111391250,0ptp4l0-21swapper/520:30:185
111391250,0ptp4l0-21swapper/422:44:404
111391250,0ptp4l0-21swapper/420:25:174
111391250,0ptp4l0-21swapper/400:32:504
111391250,0ptp4l0-21swapper/122:39:281
111391250,0ptp4l0-21swapper/122:31:401
111391250,0ptp4l0-21swapper/121:23:281
111391250,0ptp4l0-21swapper/022:20:200
111391250,0ptp4l0-21swapper/020:55:180
111391250,0ptp4l0-21swapper/020:30:110
111391240,1ptp4l5808-21cpuspeed_turbos22:55:125
111391240,1ptp4l4552-21cut19:15:014
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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