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2025-11-22 - 07:03

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 Sat Nov 22, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219602970,4sleep3361ktimersoftd/320:49:463
3202699934,63cyclictest0-21swapper/219:44:382
3202699934,12cyclictest0-21swapper/220:19:462
3202699924,64cyclictest0-21swapper/219:41:352
3202699894,61cyclictest0-21swapper/223:59:282
3202699885,13cyclictest0-21swapper/222:54:082
3202699884,66cyclictest0-21swapper/220:54:332
3202699875,12cyclictest0-21swapper/219:36:042
3202699874,63cyclictest0-21swapper/222:04:222
3202699874,59cyclictest0-21swapper/222:09:272
3202699865,12cyclictest0-21swapper/222:56:392
3202699865,12cyclictest0-21swapper/222:56:392
3202699864,66cyclictest0-21swapper/221:14:352
3202699864,58cyclictest0-21swapper/200:24:322
32026998616,62cyclictest0-21swapper/222:19:092
32026998616,62cyclictest0-21swapper/222:19:092
18452860,3sleep041ktimersoftd/020:09:370
3202699854,57cyclictest0-21swapper/219:29:522
3202699854,13cyclictest0-21swapper/200:19:172
3202699848,9cyclictest7150irq/45-ahci20:34:372
3202699844,63cyclictest0-21swapper/220:24:352
3202699844,62cyclictest0-21swapper/220:29:232
3202699844,58cyclictest0-21swapper/222:29:222
3202699843,61cyclictest0-21swapper/219:26:472
3202699834,64cyclictest0-21swapper/221:33:352
3202699834,62cyclictest0-21swapper/223:24:212
3202699834,12cyclictest0-21swapper/219:19:402
3202699833,65cyclictest0-21swapper/223:21:442
3202699833,63cyclictest0-21swapper/220:14:252
3202699833,58cyclictest0-21swapper/223:39:162
3202699833,58cyclictest0-21swapper/223:39:162
3202699824,63cyclictest0-21swapper/221:09:312
3202699824,63cyclictest0-21swapper/219:59:272
3202699824,63cyclictest0-21swapper/219:59:272
3202699824,61cyclictest0-21swapper/219:14:482
3202699824,61cyclictest0-21swapper/219:14:482
3202699824,58cyclictest0-21swapper/221:49:112
3202699824,55cyclictest0-21swapper/221:04:362
3202699824,12cyclictest0-21swapper/221:24:452
3202699824,11cyclictest0-21swapper/221:54:102
32026998219,45cyclictest22295-21yum-updatesd-he20:53:372
32026998214,53cyclictest0-21swapper/222:24:402
3202699814,61cyclictest0-21swapper/221:40:392
3202699814,56cyclictest0-21swapper/220:41:162
3202699814,18cyclictest0-21swapper/223:29:292
3202699813,57cyclictest0-21swapper/223:49:412
3202699804,60cyclictest0-21swapper/219:49:302
3202699804,58cyclictest0-21swapper/219:54:272
3202699804,58cyclictest0-21swapper/219:54:272
3202699804,15cyclictest0-21swapper/222:36:362
3202699804,12cyclictest0-21swapper/219:04:172
3202699795,14cyclictest0-21swapper/220:09:512
3202699794,15cyclictest0-21swapper/223:54:262
3202699794,14cyclictest0-21swapper/200:09:172
3202699794,13cyclictest0-21swapper/222:44:252
32026997916,6cyclictest0-21swapper/221:59:382
3202699784,58cyclictest0-21swapper/223:44:172
3202699784,57cyclictest0-21swapper/221:34:212
3202699784,56cyclictest0-21swapper/223:35:182
3202699784,17cyclictest0-21swapper/220:48:582
3202699784,13cyclictest0-21swapper/219:04:472
3202699784,12cyclictest0-21swapper/223:14:082
32026997811,8cyclictest114550irq/46-eth019:09:302
3202699774,55cyclictest0-21swapper/223:04:082
3202699774,55cyclictest0-21swapper/221:54:242
3202699773,57cyclictest0-21swapper/222:19:222
3202699773,20cyclictest0-21swapper/200:14:162
32026997713,10cyclictest25682-21fschecks_count20:59:312
3202699763,12cyclictest17744-21head00:04:312
32026997515,43cyclictest0-21swapper/223:06:412
3202699734,12cyclictest0-21swapper/223:14:102
3202699734,12cyclictest0-21swapper/222:39:422
32026997321,45cyclictest31890-21sh20:04:342
32026997317,49cyclictest3103-21grep21:19:322
3202699724,13cyclictest0-21swapper/218:59:172
243799630,5rtkit-daemon2436-21rtkit-daemon22:57:540
243799630,5rtkit-daemon2436-21rtkit-daemon22:57:540
49792620,13sleep03202199cyclictest20:14:450
142662593,49sleep00-21swapper/021:44:260
32025995840,13cyclictest0-21swapper/123:54:391
32027995736,13cyclictest30246-21grep22:14:423
32027995736,13cyclictest30246-21grep22:14:423
32027995715,21cyclictest0-21swapper/322:29:223
32025995741,12cyclictest0-21swapper/119:04:471
32027995627,10cyclictest16631-21grep20:39:373
244302563,10sleep10-21swapper/120:55:011
243799560,6rtkit-daemon2436-21rtkit-daemon20:29:300
137482563,11sleep30-21swapper/321:41:263
3202799557,28cyclictest0-21swapper/321:14:253
32025995539,12cyclictest0-21swapper/119:44:451
3202199553,46cyclictest0-21swapper/020:19:190
243799550,6rtkit-daemon2436-21rtkit-daemon23:29:230
243799550,6rtkit-daemon2436-21rtkit-daemon22:29:330
243799550,6rtkit-daemon2436-21rtkit-daemon21:24:280
243799550,6rtkit-daemon2436-21rtkit-daemon21:14:430
243799550,5rtkit-daemon2436-21rtkit-daemon22:44:320
243799550,5rtkit-daemon2436-21rtkit-daemon21:54:340
98592543,10sleep00-21swapper/021:34:260
3202799544,26cyclictest0-21swapper/321:46:343
32027995439,9cyclictest16039-21sed19:29:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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