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2026-06-22 - 04:44

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 Mon Jun 22, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991030,5rtkit-daemon0-21swapper/019:18:433
219499950,6rtkit-daemon0-21swapper/019:15:430
219499950,6rtkit-daemon0-21swapper/019:15:430
219499950,6rtkit-daemon0-21swapper/018:47:520
219499940,5rtkit-daemon0-21swapper/019:02:590
219499920,6rtkit-daemon0-21swapper/019:18:130
219499920,6rtkit-daemon0-21swapper/019:02:140
462999124,12cyclictest0-21swapper/219:37:492
46299904,39cyclictest0-21swapper/221:28:582
462999028,8cyclictest7439-21ssh23:29:392
461999036,11cyclictest0-21swapper/123:31:131
46299894,35cyclictest0-21swapper/220:57:402
462998931,14cyclictest0-21swapper/222:47:302
462998913,31cyclictest0-21swapper/223:37:172
46299874,36cyclictest0-21swapper/223:07:402
46299874,35cyclictest0-21swapper/222:02:362
46299874,10cyclictest0-21swapper/200:07:452
46299864,42cyclictest0-21swapper/222:22:472
462998633,12cyclictest0-21swapper/223:26:452
462998633,12cyclictest0-21swapper/223:26:452
46299863,37cyclictest0-21swapper/223:53:572
46299853,37cyclictest0-21swapper/223:17:432
46299853,25cyclictest30782-21ssh21:42:172
46299843,38cyclictest18948-21tr23:47:292
462998423,13cyclictest0-21swapper/222:57:142
46299834,39cyclictest0-21swapper/222:21:142
46299825,38cyclictest0-21swapper/222:42:322
46299824,36cyclictest0-21swapper/200:01:132
46299823,39cyclictest0-21swapper/223:42:342
462998227,10cyclictest24456-21telnet21:32:322
462998221,12cyclictest0-21swapper/200:02:462
462998027,7cyclictest18079-21ssh22:10:032
462998026,14cyclictest0-21swapper/220:22:352
462998021,12cyclictest0-21swapper/221:02:512
462997928,11cyclictest0-21swapper/222:34:242
462997918,24cyclictest27287-21kworker/2:023:39:082
462997821,12cyclictest0-21swapper/219:47:402
46299773,33cyclictest0-21swapper/200:12:172
46299763,36cyclictest0-21swapper/221:22:362
219499760,8rtkit-daemon0-21swapper/019:12:591
219499760,8rtkit-daemon0-21swapper/019:12:591
462997529,7cyclictest31963-21rm20:55:522
462997528,6cyclictest31189-21ssh22:28:392
462997520,12cyclictest0-21swapper/221:57:322
462997520,12cyclictest0-21swapper/221:57:322
219499740,6rtkit-daemon4870-21timerwakeupswit18:52:591
462997326,8cyclictest20016-21telnet19:27:372
219499730,9rtkit-daemon0-21swapper/018:57:591
219499730,4rtkit-daemon2193-21rtkit-daemon22:42:503
219499700,5rtkit-daemon0-21swapper/018:48:001
219499690,5rtkit-daemon2193-21rtkit-daemon21:17:392
463996738,12cyclictest24150-21grep23:07:313
46199673,58cyclictest0-21swapper/100:12:451
263452670,14sleep346399cyclictest22:22:353
461996638,12cyclictest0-21swapper/122:17:201
461996538,13cyclictest0-21swapper/100:02:271
463996437,13cyclictest0-21swapper/321:37:493
461996437,12cyclictest0-21swapper/122:09:091
46099645,51cyclictest0-21swapper/022:30:270
46099645,27cyclictest0-21swapper/023:52:450
204042643,11sleep00-21swapper/020:32:560
197112644,52sleep10-21swapper/123:00:321
463996326,27cyclictest0-21swapper/321:24:023
461996336,12cyclictest0-21swapper/122:45:171
46399624,50cyclictest0-21swapper/321:07:553
461996236,12cyclictest0-21swapper/121:23:321
463996136,11cyclictest0-21swapper/323:22:433
463996136,11cyclictest0-21swapper/323:22:433
75812604,12sleep00-21swapper/023:30:100
463996035,10cyclictest21312-21cpuspeed_turbos21:27:363
46399603,50cyclictest23116-21cut22:17:373
46399603,50cyclictest0-21swapper/322:27:473
463996014,40cyclictest0-21swapper/323:16:133
46199604,49cyclictest0-21swapper/120:54:061
461996037,12cyclictest0-21swapper/122:17:511
219499600,4rtkit-daemon2193-21rtkit-daemon23:41:483
46399594,49cyclictest0-21swapper/323:49:383
46399594,48cyclictest31802-21perl21:42:373
463995932,11cyclictest0-21swapper/320:27:353
46199594,49cyclictest0-21swapper/123:37:411
165732599,6sleep10-21swapper/122:56:251
46399584,48cyclictest0-21swapper/323:43:323
46399584,48cyclictest0-21swapper/320:47:503
46399584,47cyclictest0-21swapper/322:37:193
46399584,47cyclictest0-21swapper/322:12:313
46199583,49cyclictest0-21swapper/121:52:081
46199583,39cyclictest0-21swapper/122:23:281
46099584,30cyclictest13611-21unixbench_multi23:37:520
46399575,46cyclictest0-21swapper/320:37:333
46399574,29cyclictest0-21swapper/320:54:473
463995734,8cyclictest1131-21gltestperf20:57:433
46399573,47cyclictest11018-21fschecks_count19:07:423
463995720,28cyclictest21867-21processes23:02:453
461995735,8cyclictest23132-21perl19:32:441
46099575,30cyclictest0-21swapper/022:42:310
46099574,23cyclictest0-21swapper/019:42:520
460995739,10cyclictest885-21gltestperf22:32:370
460995711,12cyclictest28540-21grep21:37:400
261282573,48sleep00-21swapper/022:22:330
219499570,6rtkit-daemon2193-21rtkit-daemon19:42:572
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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