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2026-01-12 - 15:40

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
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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 highest latencies:
System rack1slot6s.osadl.org (updated Mon Jan 12, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52499954,83cyclictest0-21swapper/108:41:411
52699934,66cyclictest0-21swapper/309:22:273
52699934,65cyclictest0-21swapper/311:51:483
526999322,48cyclictest12667-21fschecks_count09:56:413
52499914,28cyclictest0-21swapper/108:49:391
524999118,11cyclictest29446-21cpuspeed_turbos12:01:301
52699904,70cyclictest0-21swapper/310:51:213
52699904,64cyclictest0-21swapper/311:42:583
52499904,26cyclictest0-21swapper/109:38:181
52499904,24cyclictest1419-21runrttasks09:58:461
52499904,12cyclictest0-21swapper/111:59:571
52499903,18cyclictest7101-21sadc09:01:251
52699896,63cyclictest0-21swapper/311:49:373
52499894,77cyclictest0-21swapper/109:46:401
52499894,29cyclictest0-21swapper/110:30:471
52499894,11cyclictest0-21swapper/109:04:071
524998917,8cyclictest595-21ssh11:16:211
52699884,60cyclictest0-21swapper/308:41:503
52499883,25cyclictest0-21swapper/107:09:221
524998814,9cyclictest9834-21aten_r1power_fr10:41:331
52699874,61cyclictest0-21swapper/310:51:353
52499874,76cyclictest0-21swapper/109:26:541
52499874,23cyclictest18143-21diskstats11:41:341
52499873,25cyclictest1419-21runrttasks11:06:321
524998725,9cyclictest1419-21runrttasks09:36:131
52699863,76cyclictest1419-21runrttasks09:11:443
526998617,50cyclictest0-21swapper/310:56:343
526998617,50cyclictest0-21swapper/310:56:343
52499865,30cyclictest0-21swapper/111:05:251
52499864,33cyclictest0-21swapper/109:13:131
52499864,26cyclictest0-21swapper/109:52:381
52499863,26cyclictest0-21swapper/110:36:521
524998623,11cyclictest0-21swapper/111:22:281
52699856,63cyclictest0-21swapper/312:09:273
52699855,73cyclictest0-21swapper/311:14:563
52699854,23cyclictest0-21swapper/311:07:273
52699854,22cyclictest0-21swapper/310:08:583
526998521,57cyclictest26674-21gltestperf11:56:373
52499854,73cyclictest0-21swapper/109:25:361
52499854,31cyclictest0-21swapper/111:56:201
52499854,26cyclictest0-21swapper/110:16:451
52499854,23cyclictest0-21swapper/110:01:431
52499854,13cyclictest0-21swapper/110:08:401
52499854,12cyclictest0-21swapper/108:53:291
52499854,12cyclictest0-21swapper/108:53:291
524998523,10cyclictest18148-21unixbench_singl08:22:001
524998515,9cyclictest3459-21aten_r1power_vo06:46:431
524998514,12cyclictest0-21swapper/110:56:531
524998514,12cyclictest0-21swapper/110:56:531
52699844,73cyclictest0-21swapper/311:05:373
52699844,73cyclictest0-21swapper/309:07:333
52699844,22cyclictest0-21swapper/308:56:583
52499845,26cyclictest0-21swapper/111:50:021
52499844,23cyclictest1351-21netstat12:06:431
52499844,23cyclictest0-21swapper/110:26:161
52499844,22cyclictest0-21swapper/110:51:481
52499844,14cyclictest0-21swapper/111:41:191
52499844,14cyclictest0-21swapper/111:41:191
52499843,9cyclictest3449-21sendmail_mailtr09:41:541
52499843,25cyclictest0-21swapper/108:29:441
52499843,19cyclictest25723-21diskmemload09:08:231
524998426,11cyclictest17509-21ssh09:16:351
524998426,10cyclictest1160-21df_abs11:16:351
524998415,12cyclictest0-21swapper/110:49:011
524998410,13cyclictest0-21swapper/111:29:341
52699834,72cyclictest0-21swapper/311:31:313
52699834,72cyclictest0-21swapper/309:34:053
52699834,71cyclictest0-21swapper/307:36:423
52699834,57cyclictest0-21swapper/309:05:183
52699833,73cyclictest0-21swapper/309:45:113
526998319,9cyclictest1052-21rsyslogd09:48:013
526998316,51cyclictest0-21swapper/310:14:373
526998316,51cyclictest0-21swapper/310:14:373
52499834,31cyclictest0-21swapper/107:06:301
52499834,22cyclictest0-21swapper/110:31:351
52499833,8cyclictest8758-21cut06:56:481
52499833,20cyclictest2638-21runrttasks07:51:421
524998317,12cyclictest0-21swapper/107:46:501
52699825,70cyclictest0-21swapper/312:02:263
52699824,72cyclictest0-21swapper/308:55:043
52699824,72cyclictest0-21swapper/308:55:043
52699824,71cyclictest0-21swapper/311:26:303
52699824,71cyclictest0-21swapper/310:28:233
52699824,71cyclictest0-21swapper/310:03:283
52699824,56cyclictest0-21swapper/309:51:503
526998226,50cyclictest0-21swapper/311:18:313
526998217,49cyclictest0-21swapper/310:17:033
52499824,13cyclictest0-21swapper/110:11:521
52499824,13cyclictest0-21swapper/110:11:521
52499824,13cyclictest0-21swapper/108:11:271
52499823,26cyclictest0-21swapper/111:35:291
524998226,10cyclictest24434-21gltestperf08:36:451
524998220,12cyclictest0-21swapper/107:21:561
52699816,15cyclictest0-21swapper/310:21:273
52699814,70cyclictest0-21swapper/310:46:003
52699814,69cyclictest0-21swapper/308:46:383
52699814,24cyclictest0-21swapper/309:40:283
52699814,14cyclictest0-21swapper/310:36:323
526998119,55cyclictest24999-21gltestperf09:26:453
52499813,27cyclictest0-21swapper/107:31:401
524998122,9cyclictest18453-21gltestperf07:16:491
52699804,69cyclictest0-21swapper/307:06:493
52699804,69cyclictest0-21swapper/306:46:523
52699804,23cyclictest0-21swapper/309:17:233
526998027,47cyclictest0-21swapper/310:31:443
526998025,48cyclictest8543-21unixbench_multi08:02:023
52499804,12cyclictest0-21swapper/107:30:061
52499804,12cyclictest0-21swapper/107:30:061
524998023,10cyclictest6334-21fschecks_count06:51:481
52699794,67cyclictest0-21swapper/306:41:323
52699794,23cyclictest0-21swapper/306:56:473
52699794,22cyclictest0-21swapper/311:23:273
526997930,42cyclictest5316-21gltestperf07:56:463
526997923,49cyclictest1419-21runrttasks08:29:313
526997921,51cyclictest14916-21fschecks_count11:36:363
526997921,51cyclictest14916-21fschecks_count11:36:363
52499794,29cyclictest0-21swapper/107:42:001
52499794,28cyclictest0-21swapper/108:31:431
524997915,12cyclictest0-21swapper/106:41:421
524997915,12cyclictest0-21swapper/106:41:421
52699784,67cyclictest23422-21irqstats07:26:513
52699784,67cyclictest23422-21irqstats07:26:513
526997818,54cyclictest0-21swapper/307:32:033
524997818,11cyclictest16949-21unixbench_multi07:12:031
526997734,36cyclictest17980-21cat08:21:593
526997720,51cyclictest1207-21df_abs06:41:453
526997720,51cyclictest1207-21df_abs06:41:453
52499773,15cyclictest0-21swapper/107:36:471
248599770,6rtkit-daemon0-21swapper/210:50:552
526997623,46cyclictest21692-21unixbench-2d07:22:013
526997623,46cyclictest1419-21runrttasks08:36:043
52499764,14cyclictest0-21swapper/107:59:301
52499763,31cyclictest0-21swapper/108:01:401
52499763,21cyclictest12899-21ntp_states08:11:571
52499763,21cyclictest12899-21ntp_states08:11:571
52499763,20cyclictest1247-21lldpd08:19:101
52699754,21cyclictest0-21swapper/308:36:373
52699754,13cyclictest0-21swapper/307:16:493
526997522,46cyclictest15116-21load08:16:503
526997521,47cyclictest10494-21cat08:06:523
52699744,63cyclictest0-21swapper/307:41:583
52699744,63cyclictest0-21swapper/306:51:513
52699744,22cyclictest0-21swapper/307:11:413
526997323,43cyclictest12919-21open_inodes08:11:573
526997323,43cyclictest12919-21open_inodes08:11:573
526997318,9cyclictest11341-21gltestperf07:01:503
248599730,7rtkit-daemon0-21swapper/210:43:252
526997219,8cyclictest32396-21df_abs07:46:423
248599720,6rtkit-daemon0-21swapper/210:35:402
248599720,5rtkit-daemon2484-21rtkit-daemon10:11:490
248599720,5rtkit-daemon2484-21rtkit-daemon10:11:490
248599700,4rtkit-daemon2484-21rtkit-daemon11:41:380
248599700,10rtkit-daemon0-21swapper/012:06:590
526996910,12cyclictest0-21swapper/307:51:383
248599680,6rtkit-daemon2484-21rtkit-daemon07:42:020
248599670,7rtkit-daemon0-21swapper/310:36:482
248599670,5rtkit-daemon2484-21rtkit-daemon08:48:450
248599670,4rtkit-daemon2484-21rtkit-daemon10:52:100
248599670,4rtkit-daemon2484-21rtkit-daemon07:56:470
248599660,8rtkit-daemon0-21swapper/210:51:322
248599660,5rtkit-daemon2484-21rtkit-daemon07:08:110
248599660,4rtkit-daemon2484-21rtkit-daemon10:01:420
248599660,4rtkit-daemon2484-21rtkit-daemon09:47:120
248599660,4rtkit-daemon2484-21rtkit-daemon09:36:350
248599660,4rtkit-daemon2484-21rtkit-daemon09:14:590
248599660,4rtkit-daemon2484-21rtkit-daemon08:52:590
248599660,4rtkit-daemon2484-21rtkit-daemon08:52:590
248599660,4rtkit-daemon2484-21rtkit-daemon08:22:080
248599650,4rtkit-daemon2484-21rtkit-daemon12:00:370
248599650,4rtkit-daemon2484-21rtkit-daemon11:49:080
248599650,4rtkit-daemon2484-21rtkit-daemon11:17:310
248599650,4rtkit-daemon2484-21rtkit-daemon10:59:540
248599650,4rtkit-daemon2484-21rtkit-daemon10:59:540
248599650,4rtkit-daemon2484-21rtkit-daemon09:59:120
248599650,4rtkit-daemon2484-21rtkit-daemon09:22:430
248599650,4rtkit-daemon2484-21rtkit-daemon09:03:140
248599650,4rtkit-daemon2484-21rtkit-daemon08:58:590
248599650,4rtkit-daemon2484-21rtkit-daemon07:27:100
248599650,4rtkit-daemon2484-21rtkit-daemon07:27:100
248599650,4rtkit-daemon2484-21rtkit-daemon07:22:550
248599650,4rtkit-daemon2484-21rtkit-daemon06:42:350
248599650,4rtkit-daemon2484-21rtkit-daemon06:42:350
525996426,30cyclictest29630-21taskset08:46:412
52399644,13cyclictest0-21swapper/010:21:360
248599640,4rtkit-daemon2484-21rtkit-daemon08:43:520
525996343,12cyclictest0-21swapper/211:26:492
52599634,48cyclictest0-21swapper/211:36:472
52599634,48cyclictest0-21swapper/211:36:472
523996312,28cyclictest0-21swapper/009:16:580
248599630,6rtkit-daemon0-21swapper/310:31:182
248599630,5rtkit-daemon6144-21yum-updatesd-he11:22:160
248599630,10rtkit-daemon0-21swapper/008:01:390
52399625,15cyclictest0-21swapper/011:06:380
52399624,13cyclictest0-21swapper/009:31:240
248599620,9rtkit-daemon0-21swapper/011:36:300
248599620,9rtkit-daemon0-21swapper/011:36:300
248599620,8rtkit-daemon0-21swapper/009:10:440
52399615,48cyclictest0-21swapper/010:08:510
299872614,13sleep20-21swapper/210:21:502
248599610,5rtkit-daemon14093-21aten_r1power_po08:16:380
248599610,4rtkit-daemon3731-21sed09:41:570
525995943,9cyclictest1419-21runrttasks11:14:172
52399594,14cyclictest0-21swapper/009:56:150
523995911,27cyclictest0-21swapper/009:31:410
248599590,3rtkit-daemon5693-21munin-node06:52:040
13652590,6sleep226-21rcuc/206:41:462
13652590,6sleep226-21rcuc/206:41:462
52599585,45cyclictest0-21swapper/209:31:432
52599584,45cyclictest0-21swapper/208:51:482
52599584,45cyclictest0-21swapper/208:51:482
52599584,37cyclictest0-21swapper/209:13:572
52599584,12cyclictest0-21swapper/207:21:562
525995838,14cyclictest0-21swapper/210:16:532
52399585,31cyclictest0-21swapper/010:36:220
52399585,24cyclictest0-21swapper/011:51:450
248599580,7rtkit-daemon27189-21munin-node07:36:470
52599575,45cyclictest0-21swapper/209:56:482
52599575,45cyclictest0-21swapper/209:26:242
52599574,45cyclictest0-21swapper/211:41:492
52599574,45cyclictest0-21swapper/211:16:472
52399574,12cyclictest0-21swapper/011:01:380
52599564,44cyclictest0-21swapper/208:57:012
525995636,13cyclictest0-21swapper/211:06:382
525995634,15cyclictest0-21swapper/212:01:262
525995632,17cyclictest0-21swapper/209:26:422
52599563,44cyclictest0-21swapper/209:06:512
52399564,12cyclictest0-21swapper/012:01:480
52399564,10cyclictest9256-21grep11:26:510
52599555,42cyclictest0-21swapper/211:56:512
52599555,40cyclictest0-21swapper/208:41:362
52599554,43cyclictest0-21swapper/209:43:252
52599554,42cyclictest15971-21cut10:01:402
52599554,41cyclictest0-21swapper/210:56:542
52599554,41cyclictest0-21swapper/210:56:542
525995534,13cyclictest0-21swapper/212:06:332
525995533,15cyclictest0-21swapper/210:11:412
525995533,15cyclictest0-21swapper/210:11:412
52599552,47cyclictest0-21swapper/211:01:402
52399555,14cyclictest0-21swapper/010:41:490
52399555,14cyclictest0-21swapper/010:38:330
52599544,42cyclictest0-21swapper/210:06:362
525995439,10cyclictest0-21swapper/211:33:332
525995438,11cyclictest0-21swapper/209:16:282
525995432,13cyclictest0-21swapper/207:19:072
52599543,43cyclictest1419-21runrttasks09:37:082
525995425,13cyclictest0-21swapper/211:21:312
525995423,14cyclictest0-21swapper/207:11:572
525995423,13cyclictest0-21swapper/207:26:432
525995423,13cyclictest0-21swapper/207:26:432
525995422,24cyclictest8873-21gltestperf06:56:502
52399545,29cyclictest0-21swapper/010:49:100
52399544,26cyclictest28411-21munin-run10:21:220
523995436,11cyclictest12704-21grep11:31:540
523995412,22cyclictest0-21swapper/007:46:390
156332543,43sleep00-21swapper/007:11:450
52599535,37cyclictest1419-21runrttasks07:56:462
52599534,40cyclictest0-21swapper/211:52:062
52599534,40cyclictest0-21swapper/208:26:272
525995338,10cyclictest0-21swapper/209:51:032
525995337,10cyclictest0-21swapper/209:51:392
525995335,12cyclictest0-21swapper/207:06:302
525995334,11cyclictest3663-21cut06:46:442
52399534,31cyclictest0-21swapper/011:11:480
523995321,14cyclictest0-21swapper/008:31:530
248599530,5rtkit-daemon2484-21rtkit-daemon08:11:390
248599530,5rtkit-daemon2484-21rtkit-daemon08:11:390
248599530,4rtkit-daemon2484-21rtkit-daemon07:51:540
101152533,9sleep20-21swapper/209:04:542
52599525,27cyclictest0-21swapper/207:36:062
525995237,10cyclictest0-21swapper/211:48:002
525995234,10cyclictest31348-21unixbench_singl07:42:012
525995230,14cyclictest0-21swapper/208:36:382
52599523,41cyclictest0-21swapper/208:31:472
52399525,27cyclictest0-21swapper/007:21:300
52399523,30cyclictest0-21swapper/008:06:460
523995222,13cyclictest0-21swapper/010:27:340
52599514,37cyclictest0-21swapper/208:16:492
52599512,44cyclictest0-21swapper/208:02:022
525995110,33cyclictest0-21swapper/207:39:272
52399514,28cyclictest0-21swapper/007:01:460
248599510,5rtkit-daemon2484-21rtkit-daemon08:26:530
248599510,5rtkit-daemon2484-21rtkit-daemon06:56:490
149232512,9sleep20-21swapper/207:10:382
52399504,27cyclictest0-21swapper/006:51:080
523995018,14cyclictest0-21swapper/007:36:290
525994932,10cyclictest3320-21netstat07:51:522
319552492,9sleep20-21swapper/207:46:372
248599490,5rtkit-daemon2484-21rtkit-daemon08:36:380
135362492,9sleep20-21swapper/208:13:342
135362492,9sleep20-21swapper/208:13:342
52599484,37cyclictest0-21swapper/206:51:512
52599484,36cyclictest0-21swapper/208:26:402
327202478,33sleep00-21swapper/006:38:320
52599465,33cyclictest0-21swapper/208:11:282
525994112,19cyclictest0-21swapper/206:41:312
52499313,21cyclictest1684-21nscd06:41:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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