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2026-05-28 - 02:51

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 28, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2485991050,6rtkit-daemon0-21swapper/118:36:401
2485991050,5rtkit-daemon2484-21rtkit-daemon19:49:222
4075991025,15cyclictest2513-21udisks-daemon20:14:431
4075999813,9cyclictest6207-21gltestperf21:09:241
407799974,72cyclictest0-21swapper/320:07:413
4075999714,9cyclictest24550-21latency_hist19:14:111
248599960,7rtkit-daemon0-21swapper/120:20:201
248599960,7rtkit-daemon0-21swapper/120:20:201
407799955,67cyclictest0-21swapper/319:57:433
407799954,71cyclictest0-21swapper/320:02:253
4075999524,47cyclictest311-21ssh20:59:401
4075999524,47cyclictest311-21ssh20:59:401
407799948,63cyclictest0-21swapper/321:44:493
407599944,16cyclictest0-21swapper/118:45:051
407599936,9cyclictest121850irq/46-eth020:00:091
407599934,24cyclictest10089-21latency_hist22:04:031
4075999321,51cyclictest0-21swapper/121:04:411
4075999313,13cyclictest0-21swapper/118:59:231
4075999312,13cyclictest25868-21cut19:14:331
4074999330,14cyclictest310821ssh19:24:080
248599930,6rtkit-daemon0-21swapper/121:21:031
248599930,6rtkit-daemon0-21swapper/118:22:551
407599924,79cyclictest0-21swapper/121:40:091
407599924,79cyclictest0-21swapper/121:40:091
407599924,69cyclictest0-21swapper/119:26:431
407599924,66cyclictest0-21swapper/120:29:221
4075999214,10cyclictest1419-21runrttasks16:49:461
4075999214,10cyclictest1419-21runrttasks16:49:461
248599920,5rtkit-daemon2484-21rtkit-daemon21:16:263
407799914,67cyclictest0-21swapper/321:23:033
407599915,66cyclictest0-21swapper/118:04:341
407599914,78cyclictest0-21swapper/119:44:411
248599910,6rtkit-daemon0-21swapper/121:49:241
407799905,63cyclictest0-21swapper/320:21:543
407799905,63cyclictest0-21swapper/320:21:543
407799904,65cyclictest0-21swapper/317:04:143
4077999015,52cyclictest0-21swapper/319:25:483
407599903,79cyclictest22616-21grep20:44:371
4075999012,7cyclictest29099-21diskmemload19:58:561
407799895,65cyclictest0-21swapper/321:39:363
407799895,65cyclictest0-21swapper/321:39:363
407799894,66cyclictest0-21swapper/321:05:383
407799894,64cyclictest0-21swapper/321:09:213
407799894,59cyclictest0-21swapper/319:14:123
407799893,65cyclictest32762-21taskset20:14:103
4077998920,52cyclictest1243-21lldpd21:57:213
407599899,16cyclictest0-21swapper/121:24:361
407599895,12cyclictest4219-21rm19:29:421
4075998915,12cyclictest0-21swapper/119:49:331
407799884,66cyclictest0-21swapper/319:54:083
407799884,61cyclictest0-21swapper/320:36:083
407799884,58cyclictest0-21swapper/321:51:123
407799884,14cyclictest0-21swapper/318:39:253
407799884,13cyclictest0-21swapper/320:59:303
407799884,13cyclictest0-21swapper/320:59:303
407599884,67cyclictest0-21swapper/121:36:161
407599884,62cyclictest0-21swapper/118:49:301
407599884,23cyclictest29099-21diskmemload21:30:301
407599884,14cyclictest0-21swapper/119:19:221
407599883,77cyclictest0-21swapper/117:59:301
407599883,76cyclictest2321-21unixbench_singl18:39:451
407799874,71cyclictest0-21swapper/319:43:303
407799874,67cyclictest0-21swapper/321:28:303
407799874,66cyclictest0-21swapper/319:07:183
407799874,65cyclictest0-21swapper/320:41:423
407799874,21cyclictest0-21swapper/320:27:563
407799874,12cyclictest0-21swapper/321:59:353
4077998718,53cyclictest0-21swapper/318:34:403
407599876,64cyclictest0-21swapper/118:55:291
407599876,64cyclictest0-21swapper/118:55:291
407599874,65cyclictest0-21swapper/120:55:231
407599874,15cyclictest0-21swapper/121:14:231
4075998727,51cyclictest1158-21fschecks_count17:34:311
4075998725,44cyclictest10435-21ssh19:39:331
4075998718,49cyclictest0-21swapper/119:04:341
407799864,62cyclictest0-21swapper/318:44:283
407799864,59cyclictest0-21swapper/321:29:163
407799864,12cyclictest0-21swapper/317:39:393
407599865,73cyclictest0-21swapper/120:37:451
407599864,75cyclictest0-21swapper/120:39:321
4074998632,46cyclictest0-21swapper/020:19:350
4074998632,46cyclictest0-21swapper/020:19:350
407799854,66cyclictest0-21swapper/320:10:093
407799854,65cyclictest0-21swapper/319:02:043
407799854,65cyclictest0-21swapper/317:59:393
407799854,64cyclictest0-21swapper/320:31:433
407799854,57cyclictest0-21swapper/320:53:483
407799853,64cyclictest0-21swapper/320:54:213
407599854,72cyclictest7170-21munin-node19:34:351
407599854,72cyclictest0-21swapper/120:50:001
407599854,72cyclictest0-21swapper/117:20:521
407599854,71cyclictest4568-21iostat21:54:251
407599853,59cyclictest0-21swapper/116:54:291
407599853,27cyclictest1419-21runrttasks17:14:101
4075998519,57cyclictest18231-21gltestperf18:09:301
4075998518,46cyclictest0-21swapper/120:25:571
4074998533,44cyclictest25307-21tune2fs19:14:250
248599850,5rtkit-daemon2484-21rtkit-daemon20:44:272
407799844,64cyclictest0-21swapper/317:15:413
407799844,63cyclictest0-21swapper/317:09:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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