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2026-04-15 - 23:03

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 Wed Apr 15, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2165021080,5sleep321653-21head09:49:343
1877199995,34cyclictest0-21swapper/107:32:561
248599940,21rtkit-daemon0-21swapper/205:59:213
1876899944,83cyclictest0-21swapper/007:59:280
1876899934,82cyclictest0-21swapper/010:34:160
1876899934,82cyclictest0-21swapper/010:34:160
1876899928,77cyclictest0-21swapper/009:44:350
1876899924,81cyclictest0-21swapper/009:40:050
1876899924,7cyclictest1419-21runrttasks10:14:200
248599910,24rtkit-daemon0-21swapper/210:34:033
248599910,24rtkit-daemon0-21swapper/210:34:033
1876899917,10cyclictest24003-21grep07:29:390
1876899914,80cyclictest0-21swapper/009:34:280
1876899914,79cyclictest0-21swapper/008:10:180
1876899913,82cyclictest0-21swapper/007:15:190
1876899913,82cyclictest0-21swapper/007:15:190
1876899907,68cyclictest0-21swapper/007:43:360
1876899904,79cyclictest0-21swapper/009:29:400
1876899904,79cyclictest0-21swapper/008:23:260
1876899894,78cyclictest0-21swapper/010:19:290
1876899894,78cyclictest0-21swapper/009:04:220
1876899894,78cyclictest0-21swapper/008:29:340
1876899894,78cyclictest0-21swapper/006:54:180
1876899894,77cyclictest0-21swapper/008:18:340
1876899893,56cyclictest0-21swapper/008:34:360
1876899893,56cyclictest0-21swapper/008:34:360
248599880,24rtkit-daemon0-21swapper/206:41:423
1876899884,77cyclictest0-21swapper/009:25:210
1876899884,76cyclictest0-21swapper/008:04:340
1876899884,52cyclictest0-21swapper/005:39:100
1876899883,10cyclictest12892-21unixbench_multi10:24:330
248599870,4rtkit-daemon2484-21rtkit-daemon10:33:262
1876899874,76cyclictest0-21swapper/010:29:280
1876899874,75cyclictest0-21swapper/009:49:140
1876899874,75cyclictest0-21swapper/009:14:230
1876899874,75cyclictest0-21swapper/008:44:180
1876899874,75cyclictest0-21swapper/007:49:220
1876899874,67cyclictest0-21swapper/008:49:150
1876899874,51cyclictest0-21swapper/007:19:370
248599860,23rtkit-daemon0-21swapper/205:58:363
1876899864,76cyclictest0-21swapper/009:02:070
1876899864,52cyclictest0-21swapper/008:26:410
1876899864,52cyclictest0-21swapper/007:24:360
1876899864,17cyclictest0-21swapper/005:54:200
68552850,4sleep3361ktimersoftd/308:39:393
248599850,23rtkit-daemon0-21swapper/207:05:343
1876899855,70cyclictest0-21swapper/005:14:110
1876899854,75cyclictest0-21swapper/009:57:590
1876899854,75cyclictest0-21swapper/009:57:590
1876899854,73cyclictest0-21swapper/010:10:120
1876899853,9cyclictest0-21swapper/010:07:140
1876899853,10cyclictest654-21munin-node09:19:240
1876899853,10cyclictest654-21munin-node09:19:240
1876899844,73cyclictest0-21swapper/010:39:300
1876899844,73cyclictest0-21swapper/009:59:110
1876899843,57cyclictest25643-21munin-node07:34:270
248599830,27rtkit-daemon0-21swapper/206:59:343
1876899834,9cyclictest0-21swapper/008:43:380
1876899833,73cyclictest0-21swapper/005:52:250
248599820,28rtkit-daemon0-21swapper/210:14:343
1876899824,71cyclictest0-21swapper/007:54:260
1876899824,71cyclictest0-21swapper/007:54:260
1876899824,70cyclictest0-21swapper/009:09:180
1876899824,70cyclictest0-21swapper/006:14:190
248599810,6rtkit-daemon2484-21rtkit-daemon08:09:242
1876899814,10cyclictest0-21swapper/006:29:200
1876899813,8cyclictest2759-21sh07:47:040
1876899813,6cyclictest610-21latency_hist05:44:100
1876899813,50cyclictest0-21swapper/007:14:060
248599800,26rtkit-daemon0-21swapper/206:38:503
248599800,26rtkit-daemon0-21swapper/206:38:503
248599800,26rtkit-daemon0-21swapper/206:18:583
248599800,25rtkit-daemon10568-21munin-node06:04:293
248599800,25rtkit-daemon0-21swapper/208:45:223
1876899804,69cyclictest0-21swapper/006:59:250
1876899804,69cyclictest0-21swapper/005:29:310
1876899804,13cyclictest0-21swapper/006:09:250
1876899804,12cyclictest0-21swapper/008:54:350
248599790,28rtkit-daemon0-21swapper/206:09:293
248599790,26rtkit-daemon0-21swapper/206:24:283
248599790,26rtkit-daemon0-21swapper/206:19:433
248599790,25rtkit-daemon0-21swapper/210:11:423
248599790,25rtkit-daemon0-21swapper/208:31:233
248599790,23rtkit-daemon0-21swapper/208:10:543
248599790,19rtkit-daemon0-21swapper/206:49:423
1876899794,49cyclictest0-21swapper/005:59:250
1876899793,70cyclictest0-21swapper/006:24:210
248599780,5rtkit-daemon2484-21rtkit-daemon09:54:572
248599780,5rtkit-daemon2484-21rtkit-daemon09:54:572
248599780,27rtkit-daemon0-21swapper/207:16:183
248599780,27rtkit-daemon0-21swapper/207:16:183
248599780,26rtkit-daemon0-21swapper/207:21:263
248599780,26rtkit-daemon0-21swapper/207:11:413
248599780,26rtkit-daemon0-21swapper/206:45:423
248599780,25rtkit-daemon0-21swapper/206:54:123
1876899784,68cyclictest0-21swapper/007:04:170
1876899783,68cyclictest0-21swapper/006:34:290
1876899783,68cyclictest0-21swapper/006:34:290
1876899783,56cyclictest12736-21latency_hist06:09:090
248599770,25rtkit-daemon0-21swapper/209:55:423
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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