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2026-01-25 - 22:58
[ 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 Sun Jan 25, 2026 12:46:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111391640,31ptp4l0-21swapper/307:05:083
111391640,31ptp4l0-21swapper/307:05:073
111391620,14ptp4l0-21swapper/707:05:167
111391620,14ptp4l0-21swapper/707:05:167
1029125848,6sleep40-21swapper/407:05:234
1029125848,6sleep40-21swapper/407:05:234
1881915533,7phc2sys0-21swapper/007:09:170
1881915533,7phc2sys0-21swapper/007:09:170
1040425535,16sleep60-21swapper/607:06:536
1040425535,16sleep60-21swapper/607:06:526
1058125332,6sleep50-21swapper/507:09:095
1058125332,6sleep50-21swapper/507:09:085
1063225241,7sleep10-21swapper/107:09:451
1063225241,7sleep10-21swapper/107:09:451
1060425241,7sleep20-21swapper/207:09:222
1060425241,7sleep20-21swapper/207:09:222
111391340,0ptp4l0-21swapper/411:30:154
111391310,0ptp4l0-21swapper/412:16:094
111391310,0ptp4l0-21swapper/412:16:094
111391300,1ptp4l19155-21diskmemload09:31:114
111391300,0ptp4l0-21swapper/410:50:004
111391300,0ptp4l0-21swapper/410:03:234
111391300,0ptp4l0-21swapper/010:13:090
111391290,0ptp4l0-21swapper/412:10:464
111391290,0ptp4l0-21swapper/409:15:014
111391290,0ptp4l0-21swapper/409:10:004
111391290,0ptp4l0-21swapper/012:01:330
111391290,0ptp4l0-21swapper/011:47:190
111391280,0ptp4l0-21swapper/511:31:475
111391280,0ptp4l0-21swapper/412:39:174
111391280,0ptp4l0-21swapper/412:34:234
111391280,0ptp4l0-21swapper/412:09:194
111391280,0ptp4l0-21swapper/411:37:464
111391280,0ptp4l0-21swapper/410:36:174
111391280,0ptp4l0-21swapper/410:05:334
111391280,0ptp4l0-21swapper/409:43:534
111391280,0ptp4l0-21swapper/409:43:534
111391280,0ptp4l0-21swapper/112:36:171
111391280,0ptp4l0-21swapper/012:13:510
111391280,0ptp4l0-21swapper/011:25:210
111391280,0ptp4l0-21swapper/009:20:340
111391270,0ptp4l0-21swapper/610:33:226
111391270,0ptp4l0-21swapper/512:36:085
111391270,0ptp4l0-21swapper/512:02:435
111391270,0ptp4l0-21swapper/511:05:335
111391270,0ptp4l0-21swapper/510:20:205
111391270,0ptp4l0-21swapper/509:49:285
111391270,0ptp4l0-21swapper/411:10:214
111391270,0ptp4l0-21swapper/411:01:044
111391270,0ptp4l0-21swapper/212:09:352
111391270,0ptp4l0-21swapper/111:27:071
111391270,0ptp4l0-21swapper/111:15:481
111391270,0ptp4l0-21swapper/109:21:121
111391270,0ptp4l0-21swapper/012:36:540
111391270,0ptp4l0-21swapper/011:01:370
111391270,0ptp4l0-21swapper/010:37:410
111391270,0ptp4l0-21swapper/009:58:050
111391260,0ptp4l0-21swapper/608:45:116
111391260,0ptp4l0-21swapper/510:00:475
111391260,0ptp4l0-21swapper/411:54:154
111391260,0ptp4l0-21swapper/411:47:244
111391260,0ptp4l0-21swapper/112:30:041
111391260,0ptp4l0-21swapper/110:29:321
111391260,0ptp4l0-21swapper/012:26:560
111391260,0ptp4l0-21swapper/011:56:150
111391260,0ptp4l0-21swapper/011:51:210
111391260,0ptp4l0-21swapper/010:16:370
111391260,0ptp4l0-21swapper/009:36:300
111391260,0ptp4l0-21swapper/009:36:300
111391260,0ptp4l0-21swapper/009:31:240
111391250,2ptp4l0-21swapper/110:35:401
111391250,1ptp4l4956-21smartctl08:05:131
111391250,0ptp4l0-21swapper/510:16:505
111391250,0ptp4l0-21swapper/509:05:005
111391250,0ptp4l0-21swapper/412:23:304
111391250,0ptp4l0-21swapper/411:55:394
111391250,0ptp4l0-21swapper/410:34:474
111391250,0ptp4l0-21swapper/410:11:294
111391250,0ptp4l0-21swapper/407:10:124
111391250,0ptp4l0-21swapper/112:20:121
111391250,0ptp4l0-21swapper/012:09:320
111391250,0ptp4l0-21swapper/011:36:110
111391250,0ptp4l0-21swapper/010:25:570
111391250,0ptp4l0-21swapper/009:40:060
111391250,0ptp4l0-21swapper/009:40:060
111391250,0ptp4l0-21swapper/008:55:180
111391240,1ptp4l9502-21df_inode08:15:101
111391240,1ptp4l754-21memory07:55:154
111391240,1ptp4l28652-21df09:45:104
111391240,1ptp4l22472-21/usr/sbin/munin11:05:094
111391240,1ptp4l13211-21munin-node07:15:021
111391240,1ptp4l13012-21irqstats12:20:165
111391240,0ptp4l0-21swapper/609:29:226
111391240,0ptp4l0-21swapper/609:24:066
111391240,0ptp4l0-21swapper/511:22:365
111391240,0ptp4l0-21swapper/511:16:375
111391240,0ptp4l0-21swapper/509:25:005
111391240,0ptp4l0-21swapper/412:28:134
111391240,0ptp4l0-21swapper/411:44:404
111391240,0ptp4l0-21swapper/410:54:454
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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