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2026-01-26 - 11:25
[ 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 Jan 26, 2026 00:46:08)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391620,5ptp4l0-21swapper/119:05:341
111391620,5ptp4l0-21swapper/019:08:260
111391580,5ptp4l0-21swapper/419:07:104
105342570,0sleep70-21swapper/723:21:007
1810325635,6sleep70-21swapper/719:06:537
1826625433,6sleep60-21swapper/619:09:016
1800325444,6sleep20-21swapper/219:05:362
1797625330,6sleep50-21swapper/519:05:225
1809024736,7sleep30-21swapper/319:06:423
111391350,0ptp4l0-21swapper/123:20:161
111391340,0ptp4l0-21swapper/121:12:571
111391330,0ptp4l0-21swapper/519:35:165
111391320,0ptp4l0-21swapper/521:39:355
111391320,0ptp4l0-21swapper/123:55:401
111391320,0ptp4l0-21swapper/123:35:141
111391320,0ptp4l0-21swapper/122:27:071
111391310,0ptp4l0-21swapper/621:27:466
111391310,0ptp4l0-21swapper/523:15:155
111391310,0ptp4l0-21swapper/523:15:145
111391310,0ptp4l0-21swapper/522:10:415
111391310,0ptp4l0-21swapper/123:42:191
111391310,0ptp4l0-21swapper/123:06:381
111391310,0ptp4l0-21swapper/122:57:241
111391310,0ptp4l0-21swapper/100:27:271
111391300,0ptp4l0-21swapper/121:46:331
111391300,0ptp4l0-21swapper/100:30:511
111391300,0ptp4l0-21swapper/100:01:471
111391290,2ptp4l0-21swapper/121:44:061
111391290,0ptp4l0-21swapper/523:35:155
111391290,0ptp4l0-21swapper/423:40:154
111391290,0ptp4l0-21swapper/021:22:470
111391280,3ptp4l0-21swapper/523:57:435
111391280,0ptp4l0-21swapper/523:50:515
111391280,0ptp4l0-21swapper/523:48:585
111391280,0ptp4l0-21swapper/522:03:575
111391280,0ptp4l0-21swapper/521:50:285
111391280,0ptp4l0-21swapper/519:25:215
111391280,0ptp4l0-21swapper/123:02:011
111391280,0ptp4l0-21swapper/121:34:081
111391280,0ptp4l0-21swapper/121:15:181
111391270,3ptp4l561ktimersoftd/523:27:195
111391270,1ptp4l0-21swapper/021:00:120
111391270,0ptp4l0-21swapper/522:47:495
111391270,0ptp4l0-21swapper/522:35:475
111391270,0ptp4l0-21swapper/522:05:175
111391270,0ptp4l0-21swapper/521:45:185
111391270,0ptp4l0-21swapper/521:14:565
111391270,0ptp4l0-21swapper/500:20:155
111391270,0ptp4l0-21swapper/123:10:441
111391270,0ptp4l0-21swapper/122:15:281
111391270,0ptp4l0-21swapper/121:55:311
111391270,0ptp4l0-21swapper/100:05:231
111391260,2ptp4l0-21swapper/523:32:055
111391260,0ptp4l0-21swapper/521:19:495
111391260,0ptp4l0-21swapper/519:10:205
111391260,0ptp4l0-21swapper/500:03:255
111391260,0ptp4l0-21swapper/122:36:361
111391260,0ptp4l0-21swapper/122:33:561
111391260,0ptp4l0-21swapper/122:23:591
111391260,0ptp4l0-21swapper/122:09:001
111391260,0ptp4l0-21swapper/121:54:191
111391260,0ptp4l0-21swapper/121:35:141
111391260,0ptp4l0-21swapper/100:22:561
111391260,0ptp4l0-21swapper/100:15:151
111391260,0ptp4l0-21swapper/021:54:530
111391250,2ptp4l85250irq/31-eno1-rx-00:27:505
111391250,2ptp4l0-21swapper/022:38:280
111391250,1ptp4l27183-21ptp4l20:35:201
111391250,1ptp4l27183-21ptp4l20:35:191
111391250,0ptp4l0-21swapper/523:10:375
111391250,0ptp4l0-21swapper/523:02:175
111391250,0ptp4l0-21swapper/522:55:125
111391250,0ptp4l0-21swapper/522:40:215
111391250,0ptp4l0-21swapper/522:24:395
111391250,0ptp4l0-21swapper/520:25:015
111391250,0ptp4l0-21swapper/500:15:525
111391250,0ptp4l0-21swapper/423:17:074
111391250,0ptp4l0-21swapper/423:17:074
111391250,0ptp4l0-21swapper/422:30:124
111391250,0ptp4l0-21swapper/422:26:244
111391250,0ptp4l0-21swapper/123:46:501
111391250,0ptp4l0-21swapper/122:45:391
111391250,0ptp4l0-21swapper/122:42:321
111391250,0ptp4l0-21swapper/119:15:161
111391250,0ptp4l0-21swapper/100:37:261
111391250,0ptp4l0-21swapper/023:34:120
18647992416,4cyclictest0-21swapper/520:17:235
111391240,7ptp4l0-21swapper/520:43:505
111391240,7ptp4l0-21swapper/520:43:495
111391240,2ptp4l0-21swapper/023:12:320
111391240,1ptp4l57-21ksoftirqd/523:05:215
111391240,1ptp4l3415-21diskstats19:45:121
111391240,1ptp4l31720-21missed_timers19:35:171
111391240,1ptp4l26899-21processes22:15:175
111391240,1ptp4l26391-21df20:35:145
111391240,1ptp4l26391-21df20:35:145
111391240,0ptp4l0-21swapper/522:25:195
111391240,0ptp4l0-21swapper/521:32:435
111391240,0ptp4l0-21swapper/521:05:235
111391240,0ptp4l0-21swapper/519:40:195
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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