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2026-09-11 - 09:59

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 Sep 11, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21485991024,73cyclictest14810-21unixbench_multi21:06:441
311542990,2sleep20-21swapper/219:56:032
2148599996,12cyclictest27621-21runrttasks19:50:361
2148599995,13cyclictest0-21swapper/117:36:181
2148599985,74cyclictest18461-21python22:01:381
2148599985,70cyclictest0-21swapper/119:45:321
2148599954,70cyclictest0-21swapper/121:33:091
2148599954,68cyclictest24084-21unixbench_singl20:31:441
2148599946,64cyclictest0-21swapper/121:46:211
2148599934,69cyclictest0-21swapper/117:36:491
2148599925,68cyclictest0-21swapper/119:40:261
21485999216,8cyclictest4242-21latency_hist22:31:071
2148599915,71cyclictest0-21swapper/120:08:401
2148599915,65cyclictest0-21swapper/121:26:221
2148599915,24cyclictest7247-21fschecks_time20:56:301
2148599914,63cyclictest0-21swapper/122:11:191
2148599913,20cyclictest14220-21diskmemload19:53:521
21485999119,47cyclictest0-21swapper/117:53:421
21485999119,10cyclictest3866-21cut21:41:191
21485999114,13cyclictest0-21swapper/122:46:231
21485999113,11cyclictest28409-21sh20:40:291
2148599905,14cyclictest0-21swapper/121:01:231
2148599904,64cyclictest0-21swapper/120:46:261
2148599904,24cyclictest10558-21runrttasks22:40:161
2148599903,25cyclictest4686-21cpu22:31:221
2148599903,20cyclictest14220-21diskmemload21:24:321
21485999020,11cyclictest20932-21rm21:16:381
2148599895,65cyclictest0-21swapper/122:55:291
2148599894,64cyclictest0-21swapper/121:40:121
2148599894,64cyclictest0-21swapper/121:40:121
2148599893,24cyclictest14070-21timerwakeupswit20:16:431
21485998915,8cyclictest107550irq/46-eth020:11:261
21485998911,13cyclictest0-21swapper/118:01:351
2148599886,15cyclictest0-21swapper/121:59:401
2148599885,13cyclictest0-21swapper/120:31:111
2148599884,68cyclictest0-21swapper/118:56:391
2148599884,23cyclictest0-21swapper/119:06:271
2148599884,22cyclictest0-21swapper/120:05:421
2148599884,20cyclictest11209-21munin-node22:41:191
2148599884,20cyclictest0-21swapper/122:58:321
2148599884,12cyclictest21411-21load22:06:301
2148599875,60cyclictest0-21swapper/119:56:281
2148599874,68cyclictest0-21swapper/118:52:391
2148599874,68cyclictest0-21swapper/118:52:391
2148599874,67cyclictest0-21swapper/119:11:491
2148599874,62cyclictest0-21swapper/120:21:281
2148599874,21cyclictest0-21swapper/121:51:441
21485998723,49cyclictest0-21swapper/119:32:531
21485998715,9cyclictest107550irq/46-eth022:16:281
21485998715,9cyclictest107550irq/46-eth022:16:281
2148599865,14cyclictest0-21swapper/121:14:471
2148599864,13cyclictest0-21swapper/120:51:421
21485998626,52cyclictest26039-21gltestperf18:46:341
21485998622,54cyclictest1178-21needreboot19:01:391
21485998619,10cyclictest0-21swapper/120:41:241
2148599854,65cyclictest0-21swapper/119:23:101
2148599854,65cyclictest0-21swapper/118:33:021
2148599854,64cyclictest0-21swapper/118:41:331
2148599854,22cyclictest0-21swapper/122:21:191
21485998518,49cyclictest0-21swapper/118:38:031
21485998413,9cyclictest13047-21crond18:21:161
2148599834,64cyclictest0-21swapper/118:23:011
2148599834,64cyclictest0-21swapper/118:16:181
2148599834,62cyclictest0-21swapper/117:56:281
21485998314,12cyclictest0-21swapper/119:16:261
2148599815,22cyclictest14322-21date19:31:141
2148599793,21cyclictest0-21swapper/117:41:281
21485997817,9cyclictest1227-21runrttasks18:28:211
2148599774,20cyclictest0-21swapper/117:46:291
2148599754,17cyclictest0-21swapper/118:07:471
2148599754,17cyclictest0-21swapper/118:07:471
2148599685,13cyclictest0-21swapper/117:31:191
219499640,5rtkit-daemon2193-21rtkit-daemon20:19:123
2148399643,33cyclictest0-21swapper/022:26:010
21487996334,11cyclictest0-21swapper/322:21:243
21483996225,31cyclictest22891-21munin-node21:21:390
2148699613,52cyclictest0-21swapper/221:01:232
2148699612,54cyclictest0-21swapper/220:01:282
219499600,4rtkit-daemon2193-21rtkit-daemon22:27:523
2148699603,51cyclictest26722-21load20:36:332
2148399607,39cyclictest25320-21ssh20:36:100
2148399604,49cyclictest0-21swapper/020:01:290
2148399603,39cyclictest0-21swapper/020:50:560
2148399602,51cyclictest0-21swapper/021:46:300
200212603,14sleep20-21swapper/219:38:032
134752593,49sleep20-21swapper/222:43:522
270412583,47sleep30-21swapper/317:41:333
219499580,6rtkit-daemon2193-21rtkit-daemon20:13:503
21487995832,12cyclictest0-21swapper/321:50:153
21487995831,12cyclictest0-21swapper/319:58:033
21487995828,17cyclictest32084-21runrttasks21:34:283
21486995818,33cyclictest1227-21runrttasks21:12:152
2148399589,33cyclictest0-21swapper/020:17:240
2148399588,32cyclictest0-21swapper/021:27:120
2148399583,47cyclictest0-21swapper/021:33:500
2148399582,48cyclictest0-21swapper/021:36:430
2148399582,48cyclictest0-21swapper/021:36:430
2148399582,39cyclictest0-21swapper/022:51:330
21487995731,12cyclictest0-21swapper/320:55:403
2148799573,47cyclictest0-21swapper/320:41:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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