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2026-08-23 - 11:39

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 Sun Aug 23, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219499890,4rtkit-daemon2193-21rtkit-daemon22:00:311
219499860,5rtkit-daemon2193-21rtkit-daemon20:34:043
219499860,4rtkit-daemon2193-21rtkit-daemon22:13:383
219499840,5rtkit-daemon2193-21rtkit-daemon23:05:283
219499820,4rtkit-daemon2193-21rtkit-daemon21:04:482
219499800,5rtkit-daemon2193-21rtkit-daemon23:04:131
219499800,5rtkit-daemon2193-21rtkit-daemon21:55:311
219499790,6rtkit-daemon0-21swapper/323:11:503
219499760,5rtkit-daemon2193-21rtkit-daemon20:08:051
219499760,5rtkit-daemon2193-21rtkit-daemon20:08:051
219499750,6rtkit-daemon0-21swapper/317:56:403
219499740,6rtkit-daemon0-21swapper/322:24:303
219499740,4rtkit-daemon2193-21rtkit-daemon20:19:051
10654997418,47cyclictest11918-21fschecks_time20:49:223
10654997418,47cyclictest11918-21fschecks_time20:49:223
10654997326,38cyclictest13462-21unixbench_singl21:39:343
10654997324,31cyclictest9616-21needreboot21:34:273
10654997324,31cyclictest9616-21needreboot21:34:273
10654997321,43cyclictest8787-21latency_hist22:24:003
10654997318,45cyclictest5395-21cpuspeed_turbos21:29:163
219499720,5rtkit-daemon2193-21rtkit-daemon23:00:581
219499720,11rtkit-daemon0-21swapper/319:09:223
10654997221,28cyclictest32083-21unixbench_singl20:29:373
10654997219,32cyclictest99341ssh23:14:123
219499710,5rtkit-daemon2193-21rtkit-daemon21:44:241
219499700,6rtkit-daemon0-21swapper/319:00:383
10654997018,44cyclictest10647-21expr19:59:203
1065199704,58cyclictest0-21swapper/021:29:360
1065199704,57cyclictest0-21swapper/020:39:140
219499690,5rtkit-daemon2193-21rtkit-daemon22:12:381
219499690,4rtkit-daemon2193-21rtkit-daemon21:43:541
219499690,4rtkit-daemon2193-21rtkit-daemon20:24:571
79292683,12sleep00-21swapper/022:21:060
219499680,5rtkit-daemon2193-21rtkit-daemon20:30:341
219499680,4rtkit-daemon26307-21cat19:29:073
1065199684,56cyclictest0-21swapper/022:49:320
1065199684,55cyclictest0-21swapper/021:39:410
1065199683,57cyclictest0-21swapper/021:54:170
219499670,6rtkit-daemon31854-21yum-updatesd-he18:31:013
219499670,6rtkit-daemon28689-21munin-node22:54:213
219499670,6rtkit-daemon28689-21munin-node22:54:213
219499670,5rtkit-daemon2193-21rtkit-daemon19:55:201
10654996714,34cyclictest0-21swapper/321:49:003
1065199674,56cyclictest0-21swapper/022:59:170
1065199674,55cyclictest0-21swapper/019:54:160
1065199674,54cyclictest0-21swapper/020:59:250
219499660,7rtkit-daemon0-21swapper/318:53:453
219499660,7rtkit-daemon0-21swapper/318:53:453
219499660,6rtkit-daemon27791-21swap19:29:363
219499660,6rtkit-daemon27791-21swap19:29:363
219499660,6rtkit-daemon0-21swapper/318:21:243
219499660,6rtkit-daemon0-21swapper/317:59:483
219499660,5rtkit-daemon0-21swapper/318:06:173
219499660,5rtkit-daemon0-21swapper/318:06:173
219499660,4rtkit-daemon2193-21rtkit-daemon22:06:381
219499660,4rtkit-daemon2193-21rtkit-daemon19:39:441
10654996615,43cyclictest0-21swapper/320:54:313
10654996615,35cyclictest0-21swapper/319:57:593
10654996615,32cyclictest28478-21python20:24:343
10654996615,31cyclictest0-21swapper/321:19:333
1065199664,54cyclictest0-21swapper/021:09:300
219499650,6rtkit-daemon0-21swapper/322:37:593
219499650,6rtkit-daemon0-21swapper/322:32:593
219499650,6rtkit-daemon0-21swapper/320:39:413
219499650,6rtkit-daemon0-21swapper/318:55:383
219499650,6rtkit-daemon0-21swapper/318:43:233
219499650,6rtkit-daemon0-21swapper/318:39:013
219499650,6rtkit-daemon0-21swapper/318:17:243
10654996516,42cyclictest0-21swapper/320:19:143
10654996516,33cyclictest15138-21sendmail_mailtr20:04:333
10654996516,33cyclictest15138-21sendmail_mailtr20:04:333
10654996512,35cyclictest0-21swapper/322:14:513
10654996510,48cyclictest0-21swapper/320:09:383
10654996510,48cyclictest0-21swapper/320:09:383
1065199654,53cyclictest0-21swapper/022:24:110
1065199654,53cyclictest0-21swapper/020:24:280
219499640,6rtkit-daemon0-21swapper/322:40:293
219499640,6rtkit-daemon0-21swapper/317:52:253
219499640,6rtkit-daemon0-21swapper/222:52:513
219499640,4rtkit-daemon2193-21rtkit-daemon20:00:501
1065499649,49cyclictest0-21swapper/322:44:013
1065199644,53cyclictest0-21swapper/020:16:120
1065199643,53cyclictest0-21swapper/019:44:190
219499630,5rtkit-daemon0-21swapper/318:29:312
10654996319,38cyclictest17823-21munin-node20:59:143
10654996315,41cyclictest1418-21cpuspeed_turbos19:44:203
10654996315,41cyclictest0-21swapper/321:09:023
10654996315,40cyclictest20719-21cat20:14:183
10654996315,35cyclictest3385-21diskmemload21:55:023
1065199634,52cyclictest0-21swapper/020:29:240
1065199634,52cyclictest0-21swapper/019:59:400
1065199634,51cyclictest0-21swapper/022:29:330
1065199634,51cyclictest0-21swapper/020:19:220
219499620,8rtkit-daemon0-21swapper/323:09:432
219499620,7rtkit-daemon0-21swapper/120:23:491
219499620,6rtkit-daemon20549-21ssh21:51:161
219499620,5rtkit-daemon0-21swapper/318:59:232
219499620,3rtkit-daemon0-21swapper/120:12:121
219499620,3rtkit-daemon0-21swapper/120:12:121
10654996215,30cyclictest0-21swapper/322:59:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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