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2026-05-22 - 00:54

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 May 21, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1856599985,38cyclictest13719-21kworker/2:208:00:332
1856599975,27cyclictest0-21swapper/207:15:402
1856599975,25cyclictest9888-21python08:10:422
18565999733,14cyclictest0-21swapper/206:45:492
1856599965,28cyclictest0-21swapper/206:50:462
18565999538,49cyclictest0-21swapper/209:25:112
18565999530,14cyclictest0-21swapper/205:30:342
248599930,5rtkit-daemon21-21ksoftirqd/104:44:331
1856599934,39cyclictest0-21swapper/209:45:462
1856599934,24cyclictest28044-21ssh09:25:372
1856599934,13cyclictest0-21swapper/207:08:322
18565999332,12cyclictest0-21swapper/207:50:342
248599910,8rtkit-daemon0-21swapper/005:15:313
18565999128,15cyclictest0-21swapper/208:45:402
1856599898,25cyclictest0-21swapper/208:20:412
1856599898,25cyclictest0-21swapper/208:20:412
1856599883,29cyclictest0-21swapper/207:30:342
1856599874,36cyclictest0-21swapper/206:40:482
1856599865,36cyclictest0-21swapper/210:05:432
1856599865,25cyclictest0-21swapper/208:53:372
1856599859,33cyclictest0-21swapper/210:01:572
1856599854,34cyclictest0-21swapper/209:42:092
1856599854,12cyclictest0-21swapper/209:55:222
18565998536,7cyclictest11739-21ssh07:25:432
1856599845,27cyclictest0-21swapper/208:25:552
1856599844,38cyclictest22093-21hwlatdetect04:45:432
1856599835,39cyclictest0-21swapper/207:00:282
1856599835,39cyclictest0-21swapper/207:00:282
18565998320,12cyclictest0-21swapper/205:45:392
1856599815,14cyclictest0-21swapper/207:39:162
1856599814,38cyclictest0-21swapper/208:35:432
1856599804,42cyclictest0-21swapper/209:14:342
1856599804,39cyclictest0-21swapper/209:05:292
1856599804,39cyclictest0-21swapper/209:05:292
248599790,23rtkit-daemon5215-21gltestperf06:25:361
1856599793,38cyclictest0-21swapper/205:50:502
1856599784,40cyclictest0-21swapper/207:13:052
1856599784,28cyclictest0-21swapper/208:40:312
1856599784,27cyclictest0-21swapper/208:17:412
18565997835,9cyclictest31897-21aten_r1power_cu06:15:302
18565997835,9cyclictest31897-21aten_r1power_cu06:15:302
18565997829,13cyclictest0-21swapper/209:15:322
248599770,19rtkit-daemon0-21swapper/006:10:141
248599770,19rtkit-daemon0-21swapper/004:53:171
248599770,19rtkit-daemon0-21swapper/004:53:171
248599760,22rtkit-daemon0-21swapper/005:16:241
248599760,19rtkit-daemon0-21swapper/006:04:291
18566997626,42cyclictest32398-21tr08:45:263
248599750,6rtkit-daemon2484-21rtkit-daemon07:10:270
248599750,23rtkit-daemon0-21swapper/005:22:241
248599750,23rtkit-daemon0-21swapper/004:56:401
18566997529,38cyclictest21647-21idleruntime-cro08:30:133
1856599754,26cyclictest0-21swapper/207:20:592
17632750,3sleep041ktimersoftd/008:46:320
248599740,23rtkit-daemon0-21swapper/005:58:001
248599740,19rtkit-daemon0-21swapper/006:19:291
248599740,19rtkit-daemon0-21swapper/006:19:291
248599740,19rtkit-daemon0-21swapper/005:11:091
248599730,23rtkit-daemon0-21swapper/006:33:281
248599730,19rtkit-daemon0-21swapper/006:10:221
248599730,19rtkit-daemon0-21swapper/004:49:401
248599730,17rtkit-daemon3219-21netstat06:20:441
18566997323,42cyclictest1419-21runrttasks06:09:043
248599720,8rtkit-daemon0-21swapper/005:38:233
248599720,8rtkit-daemon0-21swapper/005:38:233
18566997223,42cyclictest1419-21runrttasks07:40:243
18566997223,42cyclictest1419-21runrttasks07:40:243
248599710,5rtkit-daemon2484-21rtkit-daemon06:35:511
18566997127,28cyclictest5553-21tail09:40:313
18566997118,46cyclictest0-21swapper/307:57:543
18566997029,33cyclictest6763-21aten_r1power_cu06:30:283
18566997025,38cyclictest400-21sa105:10:213
18566997025,26cyclictest13667-21tr09:05:263
18566997025,26cyclictest13667-21tr09:05:263
18566997023,32cyclictest0-21swapper/309:50:453
18566997020,41cyclictest6647-21aten_r1power_po08:55:243
18566997018,45cyclictest0-21swapper/310:01:103
18566997017,46cyclictest0-21swapper/309:15:313
28872694,56sleep10-21swapper/108:50:121
248599690,3rtkit-daemon18246-21ssh08:25:091
248599690,3rtkit-daemon18246-21ssh08:25:091
18566996928,11cyclictest3085-21grep09:35:433
18566996927,35cyclictest5920-21gltestperf08:05:343
18566996926,27cyclictest15096-21aten_r1power_en06:45:293
18566996921,40cyclictest0-21swapper/304:40:323
18566996920,42cyclictest0-21swapper/307:20:343
18566996919,43cyclictest0-21swapper/307:26:403
18566996918,43cyclictest0-21swapper/304:55:543
18565996927,34cyclictest30408-21cpuspeed09:30:232
248599680,5rtkit-daemon2484-21rtkit-daemon07:00:420
248599680,5rtkit-daemon2484-21rtkit-daemon07:00:420
1856699689,51cyclictest0-21swapper/307:35:533
18566996825,31cyclictest1419-21runrttasks07:01:183
18566996825,31cyclictest1419-21runrttasks07:01:183
18566996820,42cyclictest0-21swapper/307:12:213
18566996820,41cyclictest0-21swapper/308:52:483
18566996817,43cyclictest0-21swapper/309:00:273
131642685,11sleep00-21swapper/007:29:250
248599670,4rtkit-daemon2484-21rtkit-daemon07:22:491
18566996725,35cyclictest18590-21runrttasks06:50:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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