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2026-01-15 - 08:05
[ 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 Thu Jan 15, 2026 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
323732640,0sleep60-21swapper/619:40:006
323732640,0sleep60-21swapper/619:40:006
111391630,5ptp4l0-21swapper/519:07:585
111391620,31ptp4l0-21swapper/119:05:581
111391600,5ptp4l0-21swapper/419:08:554
232532570,0sleep40-21swapper/400:25:144
1881915736,6phc2sys0-21swapper/219:05:112
1745825544,7sleep70-21swapper/719:05:347
1756225332,6sleep00-21swapper/019:06:550
1745724736,7sleep60-21swapper/619:05:336
1745424635,7sleep30-21swapper/319:05:303
111391330,0ptp4l0-21swapper/421:40:154
111391320,1ptp4l18882-21irqrtprio19:10:160
111391320,0ptp4l0-21swapper/521:19:225
111391310,0ptp4l8952-21diskmemload23:57:044
111391310,0ptp4l0-21swapper/321:45:123
111391310,0ptp4l0-21swapper/020:00:110
111391300,7ptp4l0-21swapper/023:28:200
111391300,0ptp4l0-21swapper/421:25:094
111391300,0ptp4l0-21swapper/022:03:360
111391290,0ptp4l0-21swapper/721:45:517
111391290,0ptp4l0-21swapper/521:59:305
111391290,0ptp4l0-21swapper/423:32:594
111391290,0ptp4l0-21swapper/422:52:344
111391290,0ptp4l0-21swapper/422:00:344
111391290,0ptp4l0-21swapper/421:10:084
111391290,0ptp4l0-21swapper/121:05:161
111391290,0ptp4l0-21swapper/023:07:560
111391290,0ptp4l0-21swapper/022:30:150
111391290,0ptp4l0-21swapper/021:42:560
111391280,4ptp4l0-21swapper/023:33:390
111391280,1ptp4l25943-21hddtemp_smartct23:00:134
111391280,0ptp4l0-21swapper/523:15:565
111391280,0ptp4l0-21swapper/520:40:135
111391280,0ptp4l0-21swapper/423:13:104
111391280,0ptp4l0-21swapper/422:58:064
111391280,0ptp4l0-21swapper/422:10:444
111391280,0ptp4l0-21swapper/400:38:084
111391280,0ptp4l0-21swapper/400:08:434
111391280,0ptp4l0-21swapper/121:59:371
111391280,0ptp4l0-21swapper/023:24:290
111391280,0ptp4l0-21swapper/022:38:060
111391280,0ptp4l0-21swapper/000:28:240
111391270,0ptp4l8952-21diskmemload22:44:044
111391270,0ptp4l0-21swapper/623:18:386
111391270,0ptp4l0-21swapper/622:51:126
111391270,0ptp4l0-21swapper/523:46:035
111391270,0ptp4l0-21swapper/523:30:085
111391270,0ptp4l0-21swapper/523:10:485
111391270,0ptp4l0-21swapper/521:00:155
111391270,0ptp4l0-21swapper/423:51:234
111391270,0ptp4l0-21swapper/423:20:224
111391270,0ptp4l0-21swapper/423:19:434
111391270,0ptp4l0-21swapper/421:56:524
111391270,0ptp4l0-21swapper/421:54:234
111391270,0ptp4l0-21swapper/420:00:144
111391270,0ptp4l0-21swapper/223:31:412
111391270,0ptp4l0-21swapper/222:10:202
111391270,0ptp4l0-21swapper/120:30:181
111391270,0ptp4l0-21swapper/023:16:430
111391270,0ptp4l0-21swapper/022:09:500
111391270,0ptp4l0-21swapper/021:57:230
111391270,0ptp4l0-21swapper/021:21:290
111391270,0ptp4l0-21swapper/020:20:200
111391270,0ptp4l0-21swapper/000:39:140
111391260,0ptp4l0-21swapper/423:41:484
111391260,0ptp4l0-21swapper/422:46:414
111391260,0ptp4l0-21swapper/422:32:064
111391260,0ptp4l0-21swapper/422:07:094
111391260,0ptp4l0-21swapper/421:32:134
111391260,0ptp4l0-21swapper/400:20:444
111391260,0ptp4l0-21swapper/400:13:084
111391260,0ptp4l0-21swapper/400:00:174
111391260,0ptp4l0-21swapper/123:23:001
111391260,0ptp4l0-21swapper/023:57:360
111391260,0ptp4l0-21swapper/023:37:310
111391260,0ptp4l0-21swapper/021:54:480
111391260,0ptp4l0-21swapper/021:49:080
111391260,0ptp4l0-21swapper/021:27:540
111391250,0ptp4l0-21swapper/520:30:195
111391250,0ptp4l0-21swapper/500:15:025
111391250,0ptp4l0-21swapper/423:46:434
111391250,0ptp4l0-21swapper/423:25:184
111391250,0ptp4l0-21swapper/422:38:444
111391250,0ptp4l0-21swapper/422:26:524
111391250,0ptp4l0-21swapper/422:20:154
111391250,0ptp4l0-21swapper/200:09:112
111391250,0ptp4l0-21swapper/123:39:501
111391250,0ptp4l0-21swapper/123:30:171
111391250,0ptp4l0-21swapper/122:08:301
111391250,0ptp4l0-21swapper/119:22:191
111391250,0ptp4l0-21swapper/100:35:011
111391250,0ptp4l0-21swapper/022:56:390
111391250,0ptp4l0-21swapper/020:25:110
111391250,0ptp4l0-21swapper/000:22:050
111391250,0ptp4l0-21swapper/000:10:480
111391240,2ptp4l0-21swapper/400:31:394
111391240,1ptp4l8685-21/usr/sbin/munin00:05:110
111391240,1ptp4l795-21memory22:25:151
111391240,1ptp4l6386-21unixbench_singl19:50:195
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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