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2026-09-02 - 22:29

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 Wed Sep 02, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4999910112,74cyclictest0-21swapper/109:58:511
49999994,65cyclictest0-21swapper/108:48:061
219499940,6rtkit-daemon0-21swapper/108:36:461
49999925,80cyclictest0-21swapper/109:41:041
49999914,80cyclictest0-21swapper/108:55:421
49999914,80cyclictest0-21swapper/107:54:391
49999914,79cyclictest0-21swapper/108:29:111
499999014,52cyclictest20195-21latency_hist08:19:121
49999896,66cyclictest0-21swapper/108:53:171
49999894,78cyclictest0-21swapper/110:08:561
49999894,63cyclictest29801-21yum-updatesd-he09:21:221
49999893,79cyclictest0-21swapper/110:32:551
49999883,7cyclictest1227-21runrttasks07:30:191
49999874,77cyclictest0-21swapper/106:54:471
49999874,76cyclictest0-21swapper/108:23:321
49999874,76cyclictest0-21swapper/106:49:321
49999874,76cyclictest0-21swapper/106:29:371
49999874,68cyclictest0-21swapper/109:06:521
49999874,66cyclictest0-21swapper/107:43:511
49999867,63cyclictest30898-21head09:24:211
49999866,73cyclictest0-21swapper/110:34:091
49999864,75cyclictest0-21swapper/111:07:151
49999864,75cyclictest0-21swapper/110:16:551
49999864,75cyclictest0-21swapper/110:03:241
49999864,75cyclictest0-21swapper/110:03:241
49999863,68cyclictest0-21swapper/110:54:211
219499860,5rtkit-daemon2193-21rtkit-daemon07:49:033
49999854,75cyclictest0-21swapper/108:41:171
49999854,74cyclictest0-21swapper/111:00:291
49999854,74cyclictest0-21swapper/109:44:311
49999854,65cyclictest0-21swapper/110:19:201
49999853,76cyclictest0-21swapper/109:53:011
49999853,64cyclictest0-21swapper/109:09:431
49999853,50cyclictest0-21swapper/110:47:391
49999853,50cyclictest0-21swapper/110:47:391
219499850,5rtkit-daemon2193-21rtkit-daemon10:40:490
49999844,73cyclictest0-21swapper/109:39:091
49999844,72cyclictest0-21swapper/108:09:311
49999844,57cyclictest0-21swapper/110:39:161
49999843,7cyclictest1227-21runrttasks09:15:451
499998410,57cyclictest6867-21cat10:24:321
49999837,52cyclictest3303-21sensors09:29:381
49999834,70cyclictest0-21swapper/107:09:481
49999834,64cyclictest0-21swapper/108:29:451
49999834,60cyclictest0-21swapper/108:59:321
49999834,55cyclictest0-21swapper/106:44:441
49999833,8cyclictest1706-21ls05:39:371
49999825,71cyclictest1547-21nscd10:54:001
49999824,72cyclictest0-21swapper/106:39:261
49999824,72cyclictest0-21swapper/106:39:261
49999824,70cyclictest30280-21iostat_ios07:44:341
49999824,69cyclictest0-21swapper/105:54:171
49999824,61cyclictest0-21swapper/110:11:201
499998210,43cyclictest32701-21aten_r1power_en07:49:241
49999814,56cyclictest0-21swapper/105:54:351
49999814,56cyclictest0-21swapper/105:54:351
49999813,9cyclictest16685-21cpuspeed_turbos07:19:271
49999813,9cyclictest16685-21cpuspeed_turbos07:19:271
49999813,70cyclictest0-21swapper/106:14:321
49999813,7cyclictest14107-21ntpq06:04:431
49999808,54cyclictest0-21swapper/106:12:481
49999804,69cyclictest0-21swapper/107:29:141
49999804,60cyclictest0-21swapper/106:24:501
49999804,56cyclictest0-21swapper/105:44:551
49999803,8cyclictest9224-21taskset08:00:351
49999803,8cyclictest9224-21taskset08:00:351
49999803,56cyclictest0-21swapper/108:05:221
49999793,8cyclictest29200-21sshd06:37:511
49999784,54cyclictest0-21swapper/106:59:451
49999774,66cyclictest0-21swapper/106:03:271
49999764,64cyclictest0-21swapper/107:38:591
50199737,53cyclictest0-21swapper/309:24:093
49999734,51cyclictest0-21swapper/106:19:401
499997317,34cyclictest0-21swapper/107:15:431
49999723,7cyclictest9785-21diskstats07:04:321
49599714,59cyclictest0-21swapper/008:34:260
219499670,5rtkit-daemon2193-21rtkit-daemon09:11:520
49999664,54cyclictest0-21swapper/105:39:181
49599654,54cyclictest0-21swapper/010:09:220
49599653,54cyclictest0-21swapper/009:14:410
50099644,53cyclictest0-21swapper/207:49:352
50099644,52cyclictest0-21swapper/210:14:232
50099644,51cyclictest0-21swapper/207:54:302
50099644,14cyclictest0-21swapper/210:04:222
49599644,54cyclictest0-21swapper/010:19:330
49599644,53cyclictest0-21swapper/010:49:290
49599644,53cyclictest0-21swapper/009:29:090
219499640,5rtkit-daemon2193-21rtkit-daemon09:33:510
219499640,4rtkit-daemon2193-21rtkit-daemon09:45:060
50199636,18cyclictest0-21swapper/310:21:213
50099634,50cyclictest0-21swapper/210:22:032
50099633,52cyclictest0-21swapper/210:44:182
50099633,52cyclictest0-21swapper/210:44:182
500996317,10cyclictest15459-21irqstats08:59:332
49599634,52cyclictest0-21swapper/010:17:140
282142633,53sleep00-21swapper/007:41:360
219499630,6rtkit-daemon0-21swapper/206:34:363
219499630,10rtkit-daemon2193-21rtkit-daemon07:04:422
52702620,11chrt0-21swapper/009:34:190
49599624,50cyclictest0-21swapper/010:54:160
49599624,50cyclictest0-21swapper/010:24:260
219499620,6rtkit-daemon0-21swapper/206:15:223
219499620,4rtkit-daemon2193-21rtkit-daemon10:04:280
219499620,4rtkit-daemon2193-21rtkit-daemon09:56:200
219499620,4rtkit-daemon2193-21rtkit-daemon08:53:450
50199614,48cyclictest0-21swapper/308:49:253
500996114,27cyclictest0-21swapper/210:29:302
49599614,50cyclictest0-21swapper/008:44:260
49599614,50cyclictest0-21swapper/008:40:520
219499610,7rtkit-daemon0-21swapper/207:01:423
219499610,7rtkit-daemon0-21swapper/206:33:283
219499610,7rtkit-daemon0-21swapper/206:10:523
219499610,7rtkit-daemon0-21swapper/205:49:303
219499610,4rtkit-daemon2193-21rtkit-daemon07:46:252
50099603,51cyclictest0-21swapper/210:40:212
50099603,51cyclictest0-21swapper/208:11:022
500996022,13cyclictest0-21swapper/208:24:332
495996031,12cyclictest0-21swapper/008:29:300
49599603,51cyclictest0-21swapper/009:39:340
49599603,50cyclictest0-21swapper/007:44:220
49599603,49cyclictest0-21swapper/010:59:240
49599603,49cyclictest0-21swapper/009:04:270
219499600,7rtkit-daemon0-21swapper/207:58:253
219499600,7rtkit-daemon0-21swapper/207:34:333
219499600,7rtkit-daemon0-21swapper/205:54:303
219499600,7rtkit-daemon0-21swapper/205:54:303
219499600,7rtkit-daemon0-21swapper/205:42:083
185182603,12sleep30-21swapper/307:24:133
185182603,12sleep30-21swapper/307:24:133
50199594,48cyclictest0-21swapper/308:39:213
50099594,22cyclictest0-21swapper/208:56:402
50099593,51cyclictest0-21swapper/208:32:202
49599594,47cyclictest0-21swapper/009:19:200
219499590,7rtkit-daemon0-21swapper/205:48:233
219499590,6rtkit-daemon2193-21rtkit-daemon09:59:280
219499590,6rtkit-daemon2193-21rtkit-daemon09:59:280
219499590,6rtkit-daemon0-21swapper/205:59:303
50199586,39cyclictest0-21swapper/309:49:083
50099583,49cyclictest0-21swapper/208:16:532
50099582,50cyclictest0-21swapper/208:00:592
50099582,50cyclictest0-21swapper/208:00:592
49599584,47cyclictest0-21swapper/011:04:200
49599584,29cyclictest0-21swapper/005:39:290
495995812,38cyclictest0-21swapper/006:24:470
219499580,7rtkit-daemon0-21swapper/206:44:503
104872583,46sleep00-21swapper/007:04:430
50199574,47cyclictest0-21swapper/307:49:473
501995717,31cyclictest1227-21runrttasks09:41:293
50099574,45cyclictest0-21swapper/205:47:462
50099573,48cyclictest0-21swapper/210:49:432
49599575,28cyclictest0-21swapper/010:44:360
49599575,28cyclictest0-21swapper/010:44:360
49599574,35cyclictest7809-21tune2fs07:59:310
49599574,35cyclictest7809-21tune2fs07:59:310
495995728,13cyclictest0-21swapper/008:09:360
231772574,47sleep20-21swapper/209:11:042
198632573,47sleep00-21swapper/007:24:390
11522573,48sleep00-21swapper/007:49:340
78602563,47sleep20-21swapper/210:25:462
50199564,44cyclictest0-21swapper/310:54:223
50099564,46cyclictest0-21swapper/209:44:542
50099564,45cyclictest0-21swapper/209:49:232
50099564,44cyclictest0-21swapper/206:19:162
50099564,36cyclictest0-21swapper/208:20:132
50099563,48cyclictest0-21swapper/209:31:322
50099562,49cyclictest0-21swapper/211:01:322
50099562,21cyclictest0-21swapper/209:24:482
49599564,30cyclictest0-21swapper/008:19:440
49599563,47cyclictest0-21swapper/008:04:260
291652563,45sleep20-21swapper/210:09:292
237062566,11sleep00-21swapper/007:34:260
219499560,5rtkit-daemon2193-21rtkit-daemon07:43:262
219499560,5rtkit-daemon2193-21rtkit-daemon05:34:462
219499560,4rtkit-daemon2193-21rtkit-daemon07:34:482
219499560,4rtkit-daemon2193-21rtkit-daemon05:41:002
50199555,44cyclictest0-21swapper/310:05:313
50199555,43cyclictest0-21swapper/308:34:103
50099559,27cyclictest0-21swapper/209:39:382
50099554,30cyclictest0-21swapper/208:49:252
50099554,14cyclictest0-21swapper/211:04:572
500995528,9cyclictest3069-21sed08:39:452
49599553,47cyclictest0-21swapper/008:14:430
49599553,44cyclictest9000-21munin-node10:29:250
219499550,6rtkit-daemon0-21swapper/207:24:413
219499550,5rtkit-daemon2193-21rtkit-daemon06:25:212
219499550,5rtkit-daemon2193-21rtkit-daemon06:12:372
219499550,5rtkit-daemon2193-21rtkit-daemon06:01:072
219499550,5rtkit-daemon2193-21rtkit-daemon05:54:452
219499550,5rtkit-daemon2193-21rtkit-daemon05:54:452
50199544,16cyclictest30810-21aten_r1power_cu09:24:203
501995436,11cyclictest24102-21unixbench_multi06:24:493
501995435,12cyclictest21926-21tr09:59:213
501995435,12cyclictest21926-21tr09:59:213
50099543,46cyclictest0-21swapper/210:58:342
500995420,13cyclictest0-21swapper/209:57:422
49599544,43cyclictest25696-21diskmemload08:24:440
49599544,41cyclictest0-21swapper/005:54:180
49599544,31cyclictest0-21swapper/006:29:470
495995418,14cyclictest0-21swapper/009:03:380
24552543,10sleep30-21swapper/311:07:523
219499540,7rtkit-daemon0-21swapper/208:06:323
219499540,5rtkit-daemon2193-21rtkit-daemon07:26:492
219499540,5rtkit-daemon2193-21rtkit-daemon07:14:342
219499540,5rtkit-daemon2193-21rtkit-daemon06:46:502
219499540,5rtkit-daemon2193-21rtkit-daemon06:08:592
219499540,4rtkit-daemon2193-21rtkit-daemon08:58:080
219499540,4rtkit-daemon2193-21rtkit-daemon07:31:492
219499540,4rtkit-daemon2193-21rtkit-daemon06:42:052
219499540,4rtkit-daemon2193-21rtkit-daemon06:42:052
219499540,4rtkit-daemon2193-21rtkit-daemon06:30:432
170542543,42sleep00-21swapper/006:10:130
144812544,13sleep00-21swapper/010:35:520
50199534,42cyclictest0-21swapper/308:59:453
50199534,29cyclictest0-21swapper/307:29:243
501995336,11cyclictest22159-21unixbench_singl08:19:453
501995314,22cyclictest6001-21sed09:34:263
50099535,27cyclictest0-21swapper/209:14:222
50099534,35cyclictest0-21swapper/210:01:362
50099534,35cyclictest0-21swapper/210:01:362
50099534,30cyclictest0-21swapper/209:34:402
500995334,11cyclictest18072-21unixbench_multi07:19:462
500995334,11cyclictest18072-21unixbench_multi07:19:462
50099533,42cyclictest0-21swapper/206:59:442
49599535,29cyclictest0-21swapper/006:04:330
495995335,11cyclictest30383-21gltestperf06:39:340
495995335,11cyclictest30383-21gltestperf06:39:340
49599533,44cyclictest0-21swapper/005:44:370
219499530,4rtkit-daemon2193-21rtkit-daemon07:09:492
219499530,4rtkit-daemon2193-21rtkit-daemon06:54:202
219499530,4rtkit-daemon2193-21rtkit-daemon06:51:352
219499530,4rtkit-daemon2193-21rtkit-daemon06:36:212
219499530,4rtkit-daemon2193-21rtkit-daemon06:20:212
219499530,4rtkit-daemon2193-21rtkit-daemon05:50:152
50199526,40cyclictest361ktimersoftd/310:32:333
50199524,29cyclictest0-21swapper/308:14:393
50199524,27cyclictest0-21swapper/310:59:293
501995233,13cyclictest0-21swapper/309:45:543
501995214,19cyclictest20880-21sh06:19:363
50099524,41cyclictest0-21swapper/210:34:242
50099524,30cyclictest0-21swapper/208:34:432
50099523,42cyclictest0-21swapper/209:04:242
49599524,29cyclictest0-21swapper/009:49:230
49599524,29cyclictest0-21swapper/007:14:300
49599524,28cyclictest0-21swapper/007:54:350
49599523,43cyclictest0-21swapper/006:44:310
495995221,13cyclictest0-21swapper/006:54:430
495995220,14cyclictest0-21swapper/006:14:510
219499520,4rtkit-daemon2193-21rtkit-daemon08:04:252
175822523,43sleep00-21swapper/007:19:390
175822523,43sleep00-21swapper/007:19:390
50199514,28cyclictest0-21swapper/307:43:203
501995133,12cyclictest0-21swapper/306:54:283
501995120,13cyclictest0-21swapper/308:27:233
50099514,29cyclictest0-21swapper/209:21:082
50099513,41cyclictest0-21swapper/208:44:352
49599514,40cyclictest0-21swapper/006:59:400
49599514,29cyclictest0-21swapper/006:49:290
49599514,29cyclictest0-21swapper/006:19:440
49599514,28cyclictest0-21swapper/007:09:290
49599513,42cyclictest0-21swapper/006:34:420
50199509,34cyclictest19112-21gltestperf09:54:273
50199505,29cyclictest0-21swapper/309:09:233
50199505,28cyclictest0-21swapper/310:12:363
50199504,29cyclictest0-21swapper/309:09:093
50199504,28cyclictest0-21swapper/309:29:223
501995032,12cyclictest0-21swapper/307:14:253
501995029,14cyclictest0-21swapper/308:44:423
501995020,13cyclictest0-21swapper/307:59:343
501995020,13cyclictest0-21swapper/307:59:343
501995013,31cyclictest0-21swapper/307:09:343
495995018,13cyclictest0-21swapper/005:59:320
50199495,27cyclictest0-21swapper/308:34:273
50199494,39cyclictest0-21swapper/310:44:283
50199494,39cyclictest0-21swapper/310:44:283
50199494,38cyclictest0-21swapper/310:39:413
50199494,28cyclictest0-21swapper/310:24:313
50199494,28cyclictest0-21swapper/310:14:353
50199494,27cyclictest0-21swapper/310:34:403
501994933,10cyclictest13154-21cut06:04:303
264672492,10sleep30-21swapper/309:16:093
229582493,40sleep00-21swapper/007:29:550
50199484,27cyclictest0-21swapper/308:13:363
501994819,12cyclictest0-21swapper/308:54:393
501994816,10cyclictest0-21swapper/310:49:423
495994817,13cyclictest0-21swapper/005:54:370
495994817,13cyclictest0-21swapper/005:54:370
501994727,13cyclictest0-21swapper/306:44:163
501994727,13cyclictest0-21swapper/306:44:163
501994721,20cyclictest3384-21proc_pri06:49:433
3102474,37sleep00-21swapper/005:37:250
50199464,26cyclictest0-21swapper/307:06:473
318272467,30sleep30-21swapper/305:34:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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