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2026-01-27 - 13:45
[ 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 Tue Jan 27, 2026 00:46:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
325222680,2sleep20-21swapper/219:05:172
1881916737,16phc2sys0-21swapper/719:06:477
111391650,31ptp4l0-21swapper/119:09:011
111391600,5ptp4l0-21swapper/419:06:354
111391600,5ptp4l0-21swapper/019:07:080
111391590,28ptp4l0-21swapper/619:06:056
126272570,0sleep70-21swapper/723:49:417
111391530,5ptp4l0-21swapper/519:09:455
91824736,7sleep30-21swapper/319:07:193
111391380,0ptp4l0-21swapper/021:34:030
111391360,0ptp4l0-21swapper/423:18:104
111391330,2ptp4l0-21swapper/522:05:125
111391330,0ptp4l0-21swapper/122:38:401
111391320,0ptp4l0-21swapper/522:47:085
111391310,0ptp4l0-21swapper/522:17:175
111391310,0ptp4l0-21swapper/022:11:370
111391300,3ptp4l0-21swapper/421:37:274
111391300,3ptp4l0-21swapper/022:09:040
111391300,0ptp4l24674-21diskmemload21:53:467
111391300,0ptp4l0-21swapper/700:22:037
111391300,0ptp4l0-21swapper/621:29:506
111391300,0ptp4l0-21swapper/523:46:415
111391300,0ptp4l0-21swapper/522:13:475
111391300,0ptp4l0-21swapper/423:41:594
111391300,0ptp4l0-21swapper/422:30:164
111391300,0ptp4l0-21swapper/421:15:204
111391300,0ptp4l0-21swapper/023:43:340
111391300,0ptp4l0-21swapper/023:09:040
111391300,0ptp4l0-21swapper/022:58:540
111391300,0ptp4l0-21swapper/021:47:400
111391290,1ptp4l1776-21wc20:20:014
111391290,1ptp4l0-21swapper/421:46:124
111391290,1ptp4l0-21swapper/400:31:174
111391290,0ptp4l0-21swapper/422:49:184
111391290,0ptp4l0-21swapper/422:22:194
111391290,0ptp4l0-21swapper/422:22:194
111391290,0ptp4l0-21swapper/421:28:564
111391290,0ptp4l0-21swapper/421:21:584
111391290,0ptp4l0-21swapper/419:35:124
111391290,0ptp4l0-21swapper/400:20:454
111391290,0ptp4l0-21swapper/223:37:112
111391290,0ptp4l0-21swapper/221:26:332
111391290,0ptp4l0-21swapper/022:37:020
111391290,0ptp4l0-21swapper/022:33:090
111391290,0ptp4l0-21swapper/019:25:140
111391290,0ptp4l0-21swapper/000:06:410
111391280,3ptp4l481ktimersoftd/419:25:014
111391280,2ptp4l121rcu_preempt19:40:190
111391280,2ptp4l121rcu_preempt19:40:190
111391280,2ptp4l0-21swapper/023:21:560
111391280,0ptp4l0-21swapper/520:05:225
111391280,0ptp4l0-21swapper/519:10:195
111391280,0ptp4l0-21swapper/423:59:034
111391280,0ptp4l0-21swapper/423:35:074
111391280,0ptp4l0-21swapper/422:44:584
111391280,0ptp4l0-21swapper/422:37:084
111391280,0ptp4l0-21swapper/421:57:564
111391280,0ptp4l0-21swapper/421:43:064
111391280,0ptp4l0-21swapper/421:31:034
111391280,0ptp4l0-21swapper/400:06:554
111391280,0ptp4l0-21swapper/322:21:563
111391280,0ptp4l0-21swapper/322:21:563
111391280,0ptp4l0-21swapper/123:06:151
111391280,0ptp4l0-21swapper/100:08:071
111391280,0ptp4l0-21swapper/022:49:160
111391280,0ptp4l0-21swapper/022:02:050
111391280,0ptp4l0-21swapper/021:35:250
111391280,0ptp4l0-21swapper/019:55:120
111391270,3ptp4l0-21swapper/521:14:305
111391270,0ptp4l0-21swapper/523:55:205
111391270,0ptp4l0-21swapper/423:08:524
111391270,0ptp4l0-21swapper/422:51:304
111391270,0ptp4l0-21swapper/420:45:204
111391270,0ptp4l0-21swapper/400:05:004
111391270,0ptp4l0-21swapper/200:20:382
111391270,0ptp4l0-21swapper/122:19:071
111391270,0ptp4l0-21swapper/021:28:470
111391260,0ptp4l24674-21diskmemload23:28:524
111391260,0ptp4l0-21swapper/522:25:015
111391260,0ptp4l0-21swapper/521:24:535
111391260,0ptp4l0-21swapper/500:34:305
111391260,0ptp4l0-21swapper/500:12:155
111391260,0ptp4l0-21swapper/423:30:004
111391260,0ptp4l0-21swapper/422:27:124
111391260,0ptp4l0-21swapper/422:00:554
111391260,0ptp4l0-21swapper/421:10:214
111391260,0ptp4l0-21swapper/419:50:194
111391260,0ptp4l0-21swapper/400:12:504
111391260,0ptp4l0-21swapper/322:55:303
111391260,0ptp4l0-21swapper/300:16:303
111391260,0ptp4l0-21swapper/200:37:292
111391260,0ptp4l0-21swapper/122:54:231
111391260,0ptp4l0-21swapper/023:52:260
111391260,0ptp4l0-21swapper/023:38:200
111391260,0ptp4l0-21swapper/023:30:510
111391260,0ptp4l0-21swapper/023:15:060
111391260,0ptp4l0-21swapper/022:27:480
111391260,0ptp4l0-21swapper/021:58:460
111391260,0ptp4l0-21swapper/021:19:280
111391260,0ptp4l0-21swapper/000:23:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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