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2026-06-12 - 17:05

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 Fri Jun 12, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
115852990,6sleep111587-21timerwakeupswit10:26:461
20489999424,12cyclictest0-21swapper/009:01:430
2048999934,39cyclictest0-21swapper/008:41:180
20489999325,12cyclictest0-21swapper/012:11:230
20489998827,7cyclictest3652-21latency_hist08:36:190
20489998825,7cyclictest11570-21latency_hist09:41:160
20489998825,7cyclictest11570-21latency_hist09:41:160
20489998724,12cyclictest0-21swapper/010:41:340
2049599715,59cyclictest0-21swapper/311:18:213
2049599714,61cyclictest0-21swapper/310:59:593
2049599714,59cyclictest0-21swapper/312:04:563
2049399714,28cyclictest0-21swapper/111:56:361
2049599705,57cyclictest0-21swapper/311:41:123
2049599705,57cyclictest0-21swapper/311:41:123
2049599704,58cyclictest7927-21ssh09:35:173
2049599695,56cyclictest291912sleep311:41:303
2049599695,55cyclictest24829-21processes10:46:443
20494996934,12cyclictest0-21swapper/210:41:232
2049399694,49cyclictest0-21swapper/112:10:271
2049599684,56cyclictest22539-21ssh11:31:343
20494996837,14cyclictest0-21swapper/211:36:262
20494996837,14cyclictest0-21swapper/211:36:262
20489996830,30cyclictest1227-21runrttasks11:40:080
20489996830,30cyclictest1227-21runrttasks11:40:080
2049399675,55cyclictest0-21swapper/111:07:431
22532660,14sleep02048999cyclictest11:01:320
2049599665,53cyclictest23868-21taskset09:56:543
2049599663,56cyclictest5486-21cpuspeed_turbos07:31:353
2049599663,56cyclictest5486-21cpuspeed_turbos07:31:353
20494996630,12cyclictest0-21swapper/211:56:202
2049499663,57cyclictest0-21swapper/209:31:412
2049499663,54cyclictest29511-21needreboot11:41:352
2049599654,53cyclictest170552sleep311:23:203
2049599653,55cyclictest0-21swapper/310:11:433
2049399654,54cyclictest0-21swapper/112:20:211
2049399654,54cyclictest0-21swapper/112:20:211
2049399654,54cyclictest0-21swapper/110:01:171
2049399654,54cyclictest0-21swapper/109:07:271
2049399653,55cyclictest0-21swapper/109:31:111
219499640,5rtkit-daemon2193-21rtkit-daemon12:21:202
2049599642,55cyclictest0-21swapper/311:46:253
2049599642,55cyclictest0-21swapper/308:56:293
2049599642,55cyclictest0-21swapper/308:56:293
2049399644,53cyclictest0-21swapper/110:51:361
144182643,53sleep114502-21needreboot10:31:391
2049499633,51cyclictest16719-21python09:46:462
2049499632,54cyclictest13218-21diskmemload09:05:562
2049399636,50cyclictest0-21swapper/109:31:361
2049399635,38cyclictest0-21swapper/108:06:501
2049399635,13cyclictest0-21swapper/109:16:331
2049399634,53cyclictest0-21swapper/112:14:551
2049399634,53cyclictest0-21swapper/111:14:571
2049399634,52cyclictest0-21swapper/111:45:451
2049399633,54cyclictest0-21swapper/111:04:261
2049399633,54cyclictest0-21swapper/109:21:351
2049399633,53cyclictest26075-21idleruntime-cro12:26:091
2049599625,49cyclictest0-21swapper/311:51:293
2049599623,9cyclictest8627-21runrttasks11:59:033
20494996232,14cyclictest0-21swapper/211:16:372
2049399624,52cyclictest0-21swapper/110:16:161
2049399624,52cyclictest0-21swapper/110:16:161
2049399624,51cyclictest520-21cpuspeed_turbos07:21:371
2049399623,53cyclictest0-21swapper/110:24:071
2049399623,53cyclictest0-21swapper/107:51:201
2049399623,52cyclictest0-21swapper/111:51:181
2049399623,52cyclictest0-21swapper/110:09:201
2049599614,50cyclictest0-21swapper/310:41:273
2049599614,14cyclictest0-21swapper/312:11:443
20495996120,13cyclictest0-21swapper/310:24:343
20494996132,13cyclictest0-21swapper/210:16:432
20494996132,13cyclictest0-21swapper/210:16:432
2049499613,50cyclictest30424-21cpuspeed_turbos10:56:262
2049399615,50cyclictest0-21swapper/109:47:111
2049399614,51cyclictest0-21swapper/111:18:561
2049399614,50cyclictest0-21swapper/108:58:401
2049399614,50cyclictest0-21swapper/108:58:401
216122602,50sleep20-21swapper/212:17:102
216122602,50sleep20-21swapper/212:17:102
2049599604,49cyclictest21809-21latency_hist09:56:163
2049599604,49cyclictest0-21swapper/309:30:113
2049599604,49cyclictest0-21swapper/309:16:313
2049599604,49cyclictest0-21swapper/309:13:323
2049599604,49cyclictest0-21swapper/308:16:363
2049599604,49cyclictest0-21swapper/308:16:363
2049599604,48cyclictest0-21swapper/308:41:493
2049599604,30cyclictest0-21swapper/310:16:423
2049599604,30cyclictest0-21swapper/310:16:423
2049599602,38cyclictest0-21swapper/309:36:573
2049599602,38cyclictest0-21swapper/309:36:573
20494996033,12cyclictest0-21swapper/210:54:012
20494996031,13cyclictest0-21swapper/211:46:402
2049399605,13cyclictest0-21swapper/111:21:281
2049399604,49cyclictest0-21swapper/109:59:421
2049399604,49cyclictest0-21swapper/108:46:441
20493996020,14cyclictest0-21swapper/111:38:271
20493996020,14cyclictest0-21swapper/111:38:271
110062603,49sleep20-21swapper/209:39:152
110062603,49sleep20-21swapper/209:39:152
2049599594,48cyclictest0-21swapper/309:46:393
2049599593,50cyclictest0-21swapper/312:16:203
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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