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2026-08-12 - 05:38

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 Aug 12, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5206991016,24cyclictest0-21swapper/122:59:521
5206991014,31cyclictest0-21swapper/121:35:001
520699975,28cyclictest0-21swapper/120:54:411
520699964,27cyclictest0-21swapper/120:44:381
520699943,12cyclictest0-21swapper/123:18:251
5206999413,21cyclictest0-21swapper/121:28:041
520699934,27cyclictest0-21swapper/121:16:531
520699934,27cyclictest0-21swapper/120:10:021
520699934,27cyclictest0-21swapper/120:10:021
520699924,26cyclictest7381-21hwlatdetect21:49:391
5206999231,53cyclictest10951-21unixbench_singl21:04:581
520699904,27cyclictest0-21swapper/121:11:541
5206999021,13cyclictest0-21swapper/118:54:551
520699894,23cyclictest21376-21unixbench_multi22:09:521
520699894,23cyclictest21376-21unixbench_multi22:09:521
5206998937,43cyclictest16727-21sed18:20:021
520699893,21cyclictest30124-21fschecks_count22:24:381
520699887,25cyclictest0-21swapper/119:49:391
520699884,29cyclictest0-21swapper/120:15:001
5206998815,9cyclictest14304-21netstat21:59:471
520699875,24cyclictest0-21swapper/120:04:591
520699874,76cyclictest0-21swapper/120:59:461
520699874,33cyclictest0-21swapper/123:09:431
520699874,27cyclictest0-21swapper/121:43:251
520699874,27cyclictest0-21swapper/120:32:191
520699874,12cyclictest13396-21idleruntime-cro22:49:181
5206998732,46cyclictest14381-21grep22:49:381
5206998727,11cyclictest2113-21irqstats23:19:411
5206998719,12cyclictest0-21swapper/121:54:341
520699864,28cyclictest0-21swapper/123:29:181
520699864,24cyclictest0-21swapper/120:23:491
520699864,24cyclictest0-21swapper/119:11:111
520699864,22cyclictest0-21swapper/122:54:391
520699863,32cyclictest3480-21cpuspeed_turbos21:44:351
5206998624,14cyclictest0-21swapper/121:29:481
5206998624,14cyclictest0-21swapper/121:29:481
5206998619,10cyclictest26702-21unixbench_multi20:39:571
520699859,14cyclictest0-21swapper/122:16:571
520699854,32cyclictest0-21swapper/121:23:421
520699854,25cyclictest7126-21tail22:39:301
520699854,21cyclictest0-21swapper/122:05:251
520699853,29cyclictest23577-21sshd20:35:171
5206998528,50cyclictest9640-21fschecks_count19:14:461
5206998518,8cyclictest28077-21munin-node19:54:411
520699844,29cyclictest0-21swapper/122:34:361
520699844,20cyclictest0-21swapper/122:19:411
5206998418,12cyclictest0-21swapper/120:25:231
5206998417,10cyclictest0-21swapper/120:50:121
520699834,32cyclictest0-21swapper/119:59:351
520699834,31cyclictest0-21swapper/122:34:191
5206998329,46cyclictest14088-21wc18:15:011
520699824,69cyclictest0-21swapper/118:34:411
520699823,11cyclictest24124-21ssh23:04:361
5206998226,11cyclictest7054-21timerwakeupswit18:00:021
5206998223,8cyclictest23396-21aten_r1power_po19:44:391
219499820,5rtkit-daemon2193-21rtkit-daemon23:25:262
520699815,23cyclictest0-21swapper/118:51:081
520699815,23cyclictest0-21swapper/118:51:081
520699814,32cyclictest0-21swapper/119:24:401
520699814,23cyclictest0-21swapper/118:29:551
271442810,6sleep00-21swapper/022:19:400
219499810,6rtkit-daemon2193-21rtkit-daemon19:28:582
219499810,5rtkit-daemon2193-21rtkit-daemon22:35:582
219499810,5rtkit-daemon2193-21rtkit-daemon20:39:402
219499810,5rtkit-daemon2193-21rtkit-daemon19:23:062
520699804,15cyclictest0-21swapper/119:29:371
520699804,15cyclictest0-21swapper/119:29:371
5206998025,9cyclictest11044-21gltestperf18:09:501
5206998025,9cyclictest11044-21gltestperf18:09:501
5206998020,11cyclictest18035-21fschecks_count18:24:471
5206998019,18cyclictest8615-21gltestperf18:04:491
219499800,9rtkit-daemon2193-21rtkit-daemon21:09:010
219499800,5rtkit-daemon2193-21rtkit-daemon23:12:572
219499800,5rtkit-daemon2193-21rtkit-daemon20:34:332
219499800,5rtkit-daemon2193-21rtkit-daemon19:51:342
219499800,5rtkit-daemon2193-21rtkit-daemon19:37:122
219499800,5rtkit-daemon2193-21rtkit-daemon19:18:512
219499800,4rtkit-daemon2193-21rtkit-daemon22:07:292
219499800,4rtkit-daemon2193-21rtkit-daemon20:51:402
520699793,32cyclictest0-21swapper/119:44:271
219499790,5rtkit-daemon2193-21rtkit-daemon22:03:442
219499790,5rtkit-daemon2193-21rtkit-daemon20:00:492
219499790,5rtkit-daemon2193-21rtkit-daemon18:59:292
219499790,4rtkit-daemon2193-21rtkit-daemon23:15:042
219499790,4rtkit-daemon2193-21rtkit-daemon21:00:242
5206997829,42cyclictest27229-21grep18:44:431
5206997821,10cyclictest13058-21unixbench_multi19:20:011
219499780,4rtkit-daemon2193-21rtkit-daemon19:56:342
219499780,4rtkit-daemon2193-21rtkit-daemon19:11:362
520699774,13cyclictest0-21swapper/119:06:061
520699774,12cyclictest0-21swapper/119:34:401
520499778,62cyclictest0-21swapper/020:54:350
219499770,4rtkit-daemon2193-21rtkit-daemon22:18:292
219499760,5rtkit-daemon2193-21rtkit-daemon21:08:462
219499760,4rtkit-daemon2193-21rtkit-daemon22:40:352
520699743,29cyclictest0-21swapper/118:40:461
5204997413,54cyclictest21377-21grep22:09:520
5204997413,54cyclictest21377-21grep22:09:520
5204997311,56cyclictest0-21swapper/021:29:500
5204997311,56cyclictest0-21swapper/021:29:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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