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2026-05-18 - 21:47

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #1, slot #6

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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  Intel
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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot6s.osadl.org (updated Mon May 18, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
113499984,15cyclictest0-21swapper/009:36:330
113499984,12cyclictest0-21swapper/009:38:210
113499974,13cyclictest0-21swapper/009:57:270
113499964,68cyclictest0-21swapper/008:43:120
113499964,13cyclictest0-21swapper/007:51:470
113499954,76cyclictest0-21swapper/010:01:170
113499954,76cyclictest0-21swapper/010:01:170
113499954,75cyclictest0-21swapper/010:03:200
113499944,72cyclictest0-21swapper/008:03:520
113499944,69cyclictest0-21swapper/007:32:460
113499944,13cyclictest0-21swapper/007:33:280
248599930,5rtkit-daemon2484-21rtkit-daemon07:13:192
248599930,5rtkit-daemon2484-21rtkit-daemon07:13:192
113499939,12cyclictest0-21swapper/007:38:210
113499934,69cyclictest0-21swapper/005:04:080
113499934,69cyclictest0-21swapper/005:04:080
113499934,64cyclictest0-21swapper/009:48:280
113499933,19cyclictest0-21swapper/008:21:120
113499924,66cyclictest0-21swapper/007:47:240
113499924,13cyclictest0-21swapper/008:28:260
248599910,5rtkit-daemon3569-21cut07:43:181
113499914,65cyclictest0-21swapper/007:05:140
113499914,13cyclictest0-21swapper/008:08:270
113499914,12cyclictest0-21swapper/009:23:110
113499904,71cyclictest0-21swapper/008:58:270
113499904,68cyclictest0-21swapper/009:03:220
113499904,68cyclictest0-21swapper/006:55:570
113499903,68cyclictest0-21swapper/007:17:320
113499903,68cyclictest0-21swapper/007:17:320
113499894,64cyclictest0-21swapper/008:40:090
113499889,10cyclictest0-21swapper/006:44:070
113499884,68cyclictest0-21swapper/007:23:180
113499884,66cyclictest0-21swapper/008:33:340
113499884,22cyclictest26311-21diskmemload06:48:360
113499884,13cyclictest0-21swapper/008:13:190
113499884,13cyclictest0-21swapper/007:53:270
113499884,13cyclictest0-21swapper/007:53:270
113499874,68cyclictest0-21swapper/005:28:320
113499874,13cyclictest0-21swapper/010:12:390
113499873,68cyclictest0-21swapper/009:28:280
113499873,21cyclictest0-21swapper/005:35:570
1134998718,50cyclictest0-21swapper/006:38:320
1134998716,53cyclictest0-21swapper/007:11:230
113499869,10cyclictest0-21swapper/008:01:230
113499864,64cyclictest0-21swapper/009:12:250
113499864,12cyclictest0-21swapper/008:53:160
113499863,23cyclictest30194-21munin-node08:23:330
1134998618,50cyclictest0-21swapper/006:03:270
1134998610,60cyclictest0-21swapper/009:21:030
248599850,7rtkit-daemon0-21swapper/309:35:363
113499854,63cyclictest0-21swapper/007:20:070
113499854,13cyclictest0-21swapper/008:50:530
113499853,12cyclictest0-21swapper/006:58:390
113499845,65cyclictest0-21swapper/009:44:080
113499844,16cyclictest0-21swapper/006:23:310
1134998437,41cyclictest1419-21runrttasks05:48:160
1134998437,41cyclictest1419-21runrttasks05:48:160
1134998414,8cyclictest12197-21munin-node06:13:320
113499834,61cyclictest0-21swapper/006:18:370
113499833,64cyclictest0-21swapper/009:13:030
113499833,64cyclictest0-21swapper/009:13:030
113499824,17cyclictest0-21swapper/005:18:250
113499823,55cyclictest0-21swapper/005:58:210
113499814,68cyclictest0-21swapper/005:23:210
113499804,61cyclictest0-21swapper/005:38:350
113499804,13cyclictest1132-21awk04:43:100
113499794,13cyclictest0-21swapper/004:48:360
113499793,20cyclictest8660-21munin-node04:58:400
113499793,20cyclictest0-21swapper/006:28:200
1134997922,50cyclictest2977-21cpuspeed_turbos05:53:230
113499784,67cyclictest0-21swapper/005:12:570
113499784,65cyclictest0-21swapper/006:08:210
248599770,4rtkit-daemon2484-21rtkit-daemon06:22:292
1134997520,48cyclictest1463-21aten2.4-expect04:43:240
113499744,12cyclictest0-21swapper/005:43:430
113499743,19cyclictest15854-21aten2.4-expect05:13:210
1134997425,42cyclictest22674-21wc06:33:270
1134997425,42cyclictest22674-21wc06:33:270
1134997316,8cyclictest1419-21runrttasks04:57:320
248599710,4rtkit-daemon37-21ksoftirqd/310:08:053
248599680,5rtkit-daemon2484-21rtkit-daemon07:02:353
248599660,6rtkit-daemon0-21swapper/209:36:592
1138996615,30cyclictest26924-21head08:18:153
1138996512,34cyclictest0-21swapper/309:03:263
248599640,5rtkit-daemon20793-21ssh07:19:343
1138996428,29cyclictest782-21ssh08:27:493
1138996420,37cyclictest6776-21ssh07:48:163
113799643,36cyclictest0-21swapper/208:50:282
248599630,8rtkit-daemon0-21swapper/108:13:101
248599630,6rtkit-daemon0-21swapper/208:38:093
248599630,5rtkit-daemon31810-21ssh07:37:483
248599620,9rtkit-daemon0-21swapper/107:55:331
248599620,9rtkit-daemon0-21swapper/107:55:331
248599620,8rtkit-daemon0-21swapper/108:52:451
248599620,5rtkit-daemon22013-21ssh07:23:113
248599620,4rtkit-daemon2484-21rtkit-daemon08:12:321
248599620,3rtkit-daemon0-21swapper/109:17:371
248599620,3rtkit-daemon0-21swapper/109:17:371
248599620,3rtkit-daemon0-21swapper/108:54:381
248599620,3rtkit-daemon0-21swapper/107:42:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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