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2026-04-10 - 01:18

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 Thu Apr 09, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2238021070,7sleep1474399cyclictest08:44:411
1156521020,17sleep3474599cyclictest06:40:033
474399934,39cyclictest0-21swapper/106:35:151
4743999333,12cyclictest28284-21gltestperf09:39:571
473999913,81cyclictest8044-21grep09:10:010
248599910,4rtkit-daemon2484-21rtkit-daemon06:45:493
474399904,38cyclictest0-21swapper/108:01:441
473999904,77cyclictest1419-21runrttasks09:39:230
473999903,40cyclictest0-21swapper/008:40:120
248599880,5rtkit-daemon2484-21rtkit-daemon07:00:183
474399874,28cyclictest0-21swapper/106:05:021
474399874,27cyclictest0-21swapper/108:35:151
4739998713,67cyclictest0-21swapper/009:39:580
474399864,27cyclictest0-21swapper/105:40:071
474399864,13cyclictest1287-21snmpd09:18:071
473999843,73cyclictest6932-21crond09:09:400
474399835,15cyclictest0-21swapper/109:24:451
473999839,56cyclictest0-21swapper/009:15:530
473999834,73cyclictest0-21swapper/010:32:530
473999834,72cyclictest0-21swapper/009:59:510
473999833,73cyclictest4099-21kworker/0:008:15:110
248599830,5rtkit-daemon2484-21rtkit-daemon09:01:363
473999823,72cyclictest28623-21sh08:04:580
473999823,72cyclictest28623-21sh08:04:580
473999823,71cyclictest8032-21munin-node07:35:010
4739998220,45cyclictest0-21swapper/008:59:380
474399814,15cyclictest0-21swapper/109:48:161
473999818,50cyclictest0-21swapper/007:26:200
473999816,68cyclictest0-21swapper/010:28:150
473999814,70cyclictest6380-21latency09:55:030
473999814,69cyclictest0-21swapper/010:38:060
473999814,56cyclictest0-21swapper/007:46:120
473999813,38cyclictest0-21swapper/010:45:530
248599810,5rtkit-daemon2484-21rtkit-daemon07:56:013
248599810,4rtkit-daemon2484-21rtkit-daemon08:58:293
474399804,14cyclictest0-21swapper/109:11:151
473999804,68cyclictest0-21swapper/009:04:210
473999804,67cyclictest24978-21munin-run07:09:450
4739998033,41cyclictest17925-21munin-node07:50:030
473999803,60cyclictest13035-21df_abs08:29:560
473999803,59cyclictest1419-21runrttasks06:04:590
473999803,58cyclictest6493-21runrttasks07:32:260
473999803,58cyclictest0-21swapper/007:40:160
473999803,56cyclictest1797-21sh09:49:510
248599800,5rtkit-daemon2484-21rtkit-daemon07:05:033
248599800,4rtkit-daemon2484-21rtkit-daemon10:49:243
248599800,4rtkit-daemon2484-21rtkit-daemon10:03:343
248599800,4rtkit-daemon2484-21rtkit-daemon08:52:593
248599800,4rtkit-daemon2484-21rtkit-daemon08:47:143
248599800,4rtkit-daemon2484-21rtkit-daemon08:35:453
248599800,4rtkit-daemon2484-21rtkit-daemon07:47:173
474399798,24cyclictest0-21swapper/107:54:431
474399794,32cyclictest0-21swapper/106:55:041
473999794,68cyclictest0-21swapper/008:12:220
473999794,42cyclictest0-21swapper/007:22:290
473999794,42cyclictest0-21swapper/007:22:290
473999793,69cyclictest0-21swapper/010:11:210
473999793,52cyclictest0-21swapper/009:33:290
248599790,4rtkit-daemon2484-21rtkit-daemon09:58:263
248599790,4rtkit-daemon2484-21rtkit-daemon08:07:163
248599790,4rtkit-daemon2484-21rtkit-daemon08:07:163
248599790,4rtkit-daemon2484-21rtkit-daemon05:45:363
248599790,4rtkit-daemon2484-21rtkit-daemon05:30:373
248599790,4rtkit-daemon2484-21rtkit-daemon05:28:373
473999788,54cyclictest0-21swapper/008:36:500
473999784,67cyclictest0-21swapper/007:14:570
473999784,66cyclictest0-21swapper/008:50:080
473999784,66cyclictest0-21swapper/008:25:110
473999784,58cyclictest0-21swapper/009:23:210
473999784,58cyclictest0-21swapper/008:49:240
473999784,55cyclictest0-21swapper/010:40:120
473999783,65cyclictest19068-21idleruntime-cro05:49:480
4739997817,36cyclictest22277-21cpu10:19:490
248599780,5rtkit-daemon2484-21rtkit-daemon09:10:213
248599780,4rtkit-daemon2484-21rtkit-daemon09:37:203
248599780,4rtkit-daemon2484-21rtkit-daemon08:34:153
248599780,4rtkit-daemon2484-21rtkit-daemon08:17:383
473999773,55cyclictest0-21swapper/010:04:570
473999773,55cyclictest0-21swapper/010:04:570
473999773,55cyclictest0-21swapper/008:23:090
248599770,4rtkit-daemon2484-21rtkit-daemon10:15:113
248599770,4rtkit-daemon2484-21rtkit-daemon10:06:043
248599770,4rtkit-daemon2484-21rtkit-daemon10:06:043
248599770,4rtkit-daemon2484-21rtkit-daemon09:48:193
248599770,4rtkit-daemon2484-21rtkit-daemon09:16:063
248599770,4rtkit-daemon2484-21rtkit-daemon07:44:323
248599770,4rtkit-daemon2484-21rtkit-daemon07:21:103
248599770,4rtkit-daemon2484-21rtkit-daemon07:21:103
248599770,4rtkit-daemon2484-21rtkit-daemon06:04:583
248599770,4rtkit-daemon2484-21rtkit-daemon06:00:363
473999763,66cyclictest3714-21munin-node06:25:210
473999763,66cyclictest0-21swapper/008:02:560
248599760,4rtkit-daemon2484-21rtkit-daemon07:36:023
473999754,64cyclictest0-21swapper/009:25:040
473999754,64cyclictest0-21swapper/007:56:050
473999754,62cyclictest31925-21ssh09:45:030
248599750,4rtkit-daemon2484-21rtkit-daemon09:05:363
473999744,63cyclictest0-21swapper/006:03:170
473999743,63cyclictest14070-21tail06:45:050
473999743,63cyclictest1051-21rs:main0
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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