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2026-04-24 - 15:58

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 all highest latencies:
System rack1slot6s.osadl.org (updated Fri Apr 24, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2485991270,6rtkit-daemon0-21swapper/008:12:011
2485991260,6rtkit-daemon0-21swapper/005:18:521
2485991240,6rtkit-daemon0-21swapper/005:14:081
2485991150,6rtkit-daemon0-21swapper/007:56:461
2485991140,6rtkit-daemon0-21swapper/005:40:591
2485991090,6rtkit-daemon0-21swapper/008:17:080
2485991090,5rtkit-daemon0-21swapper/009:17:431
2485991090,5rtkit-daemon0-21swapper/009:17:431
2485991060,6rtkit-daemon0-21swapper/009:08:430
2485991040,6rtkit-daemon0-21swapper/109:49:421
13758991043,93cyclictest0-21swapper/007:20:580
137589910020,55cyclictest0-21swapper/008:23:390
1375899984,87cyclictest0-21swapper/009:50:500
248599970,5rtkit-daemon0-21swapper/008:32:451
1375899974,12cyclictest0-21swapper/010:18:060
248599960,6rtkit-daemon0-21swapper/009:01:511
248599960,5rtkit-daemon15347-21nscd08:10:310
1376299955,25cyclictest0-21swapper/108:15:541
1376299953,27cyclictest0-21swapper/109:25:441
1375899953,12cyclictest0-21swapper/010:20:420
1376299945,25cyclictest17930-21df_inode07:20:541
1376399936,53cyclictest0-21swapper/209:10:482
1376399934,65cyclictest0-21swapper/207:05:512
1376399934,12cyclictest0-21swapper/207:13:352
1376399934,12cyclictest0-21swapper/207:13:352
13762999320,28cyclictest0-21swapper/110:18:011
248599920,5rtkit-daemon0-21swapper/009:47:120
1376399924,9cyclictest8348-21ssh10:16:052
1376299924,12cyclictest0-21swapper/108:25:581
13758999223,53cyclictest6497-21diskmemload07:51:090
13758999223,53cyclictest6497-21diskmemload07:51:090
1376399914,63cyclictest5724-21telnet07:50:472
1376399914,63cyclictest5724-21telnet07:50:472
1376399914,13cyclictest0-21swapper/207:57:562
1376399914,10cyclictest16504-21grep08:05:542
1376399904,9cyclictest13787-21yum-updatesd-he08:50:472
13763999019,51cyclictest0-21swapper/208:11:052
13763999019,50cyclictest0-21swapper/209:24:162
1376299904,28cyclictest0-21swapper/110:25:461
13758999024,51cyclictest1247-21lldpd09:15:520
13758999024,51cyclictest1247-21lldpd09:15:520
1376399894,13cyclictest0-21swapper/209:15:472
1376399894,13cyclictest0-21swapper/209:15:472
1376399893,9cyclictest23612-21ssh09:51:052
13758998917,12cyclictest0-21swapper/010:31:020
248599880,6rtkit-daemon0-21swapper/106:56:341
248599880,6rtkit-daemon0-21swapper/007:35:470
1376399884,62cyclictest0-21swapper/208:24:442
1376399884,13cyclictest0-21swapper/209:31:262
1376399883,11cyclictest22155-21grep09:01:062
1375899884,77cyclictest0-21swapper/006:05:580
1375899884,76cyclictest0-21swapper/007:31:050
13758998824,47cyclictest0-21swapper/009:11:060
13758998819,9cyclictest13951-21tail08:50:460
13758998815,11cyclictest0-21swapper/010:27:520
1376399874,16cyclictest0-21swapper/208:36:022
1376399874,16cyclictest0-21swapper/208:36:022
1376399874,12cyclictest0-21swapper/209:05:572
1376399873,9cyclictest15613-21unixbench_singl07:16:122
1376399873,9cyclictest15613-21unixbench_singl07:16:122
1376399873,10cyclictest19252-21sh09:45:502
1375899875,11cyclictest0-21swapper/009:00:570
1375899874,26cyclictest0-21swapper/010:06:070
1375899873,21cyclictest15874-21ssh09:40:500
13758998710,20cyclictest0-21swapper/007:01:040
248599860,7rtkit-daemon0-21swapper/108:09:231
1376399868,63cyclictest0-21swapper/207:25:542
1376399864,13cyclictest0-21swapper/210:34:492
1376399864,11cyclictest0-21swapper/205:16:072
1376399863,12cyclictest0-21swapper/207:22:452
13763998618,54cyclictest0-21swapper/207:45:512
1375899865,73cyclictest0-21swapper/007:40:510
1375899863,76cyclictest0-21swapper/008:41:070
1375899863,12cyclictest0-21swapper/007:06:240
13758998627,41cyclictest11558-21ssh08:45:580
13758998622,8cyclictest1419-21runrttasks10:03:550
13758998614,13cyclictest0-21swapper/009:26:290
13758998610,20cyclictest0-21swapper/007:26:140
1376399855,68cyclictest0-21swapper/207:30:522
1376399855,61cyclictest0-21swapper/208:31:002
1376399855,12cyclictest31497-21cpuspeed_turbos07:40:512
1376399854,62cyclictest0-21swapper/210:07:282
1376399854,14cyclictest0-21swapper/210:21:032
1376399854,13cyclictest0-21swapper/208:15:542
1376399854,13cyclictest0-21swapper/208:00:552
1376299855,27cyclictest0-21swapper/108:50:481
1375899854,74cyclictest0-21swapper/009:33:170
1375899854,63cyclictest0-21swapper/005:50:520
1375899853,74cyclictest0-21swapper/008:56:010
13758998526,42cyclictest18759-21munin-node05:16:150
248599840,5rtkit-daemon0-21swapper/007:49:540
1376399844,61cyclictest0-21swapper/206:00:532
1376399844,15cyclictest0-21swapper/208:45:472
1376399844,11cyclictest26219-21grep09:55:502
1376299845,29cyclictest0-21swapper/109:56:041
1376299845,29cyclictest0-21swapper/108:24:411
13762998411,26cyclictest0-21swapper/110:11:391
13758998441,36cyclictest1482-21grep05:46:000
13758998441,36cyclictest1482-21grep05:46:000
1375899844,71cyclictest0-21swapper/009:21:000
1375899843,74cyclictest0-21swapper/009:35:560
1375899843,25cyclictest0-21swapper/008:29:410
13758998417,9cyclictest0-21swapper/009:59:060
1376399835,60cyclictest0-21swapper/206:10:582
1376399834,14cyclictest0-21swapper/209:25:542
1376399834,12cyclictest0-21swapper/210:00:472
1376399834,12cyclictest0-21swapper/209:35:592
1376399833,64cyclictest0-21swapper/208:55:562
1376399833,59cyclictest0-21swapper/209:45:042
1376399833,12cyclictest0-21swapper/208:41:042
13763998311,53cyclictest121850irq/46-eth010:25:542
1376299834,27cyclictest0-21swapper/109:30:451
1375899833,25cyclictest0-21swapper/008:10:460
1375899833,21cyclictest833-21fschecks_count08:30:540
13758998328,49cyclictest13172-21tune2fs08:00:540
13758998320,8cyclictest6074-21rm08:37:570
13758998320,8cyclictest6074-21rm08:37:570
13758998318,10cyclictest23527-21munin-node05:26:060
13758998312,10cyclictest0-21swapper/007:59:410
1376399824,9cyclictest4326-21grep10:10:552
1376399824,59cyclictest0-21swapper/205:56:112
1376399824,12cyclictest0-21swapper/206:56:072
1376399823,58cyclictest0-21swapper/208:30:012
13763998218,38cyclictest0-21swapper/207:35:482
1375899824,71cyclictest0-21swapper/010:10:550
13758998221,9cyclictest16372-21munin-node05:10:550
13758998219,12cyclictest0-21swapper/007:11:110
13758998219,12cyclictest0-21swapper/007:11:110
1376399815,8cyclictest0-21swapper/205:31:032
1376399814,9cyclictest23584-21aten2.4-expect05:25:542
13763998125,33cyclictest0-21swapper/205:15:432
1375899814,69cyclictest0-21swapper/005:56:000
1375899814,13cyclictest0-21swapper/007:15:550
1375899814,13cyclictest0-21swapper/007:15:550
1375899813,70cyclictest0-21swapper/006:10:570
13758998129,46cyclictest871-21switchtime06:51:100
248599790,6rtkit-daemon0-21swapper/006:32:120
248599790,6rtkit-daemon0-21swapper/006:32:120
1376399794,13cyclictest0-21swapper/206:51:022
1375899794,68cyclictest0-21swapper/006:22:050
13758997918,12cyclictest0-21swapper/005:31:070
1376399784,11cyclictest0-21swapper/206:32:272
1376399784,11cyclictest0-21swapper/206:32:272
1375899784,67cyclictest0-21swapper/006:28:060
1375899784,66cyclictest0-21swapper/006:55:540
248599770,8rtkit-daemon0-21swapper/106:31:121
248599770,8rtkit-daemon0-21swapper/106:31:121
1376399775,65cyclictest0-21swapper/206:15:582
1376399774,65cyclictest0-21swapper/206:46:032
1376399774,10cyclictest0-21swapper/206:20:522
1375899774,12cyclictest0-21swapper/006:00:530
1375899773,67cyclictest0-21swapper/005:40:430
13758997725,46cyclictest15329-21processes05:06:110
13758997725,46cyclictest15329-21processes05:06:110
13758997720,8cyclictest1419-21runrttasks06:36:050
248599760,6rtkit-daemon0-21swapper/107:50:461
248599760,6rtkit-daemon0-21swapper/107:50:461
248599760,6rtkit-daemon0-21swapper/105:46:061
248599760,6rtkit-daemon0-21swapper/105:46:061
248599760,5rtkit-daemon6497-21diskmemload09:08:211
248599760,5rtkit-daemon0-21swapper/106:36:041
1376399764,50cyclictest0-21swapper/205:06:002
1376399764,50cyclictest0-21swapper/205:06:002
1376399764,13cyclictest0-21swapper/205:21:092
13758997630,40cyclictest16908-21unixbench_singl06:16:130
248599750,6rtkit-daemon0-21swapper/105:35:591
1376399754,63cyclictest6490-21crond07:05:392
13763997521,46cyclictest3703-21df_abs05:50:572
248599740,6rtkit-daemon0-21swapper/107:07:181
1376399745,12cyclictest0-21swapper/205:40:582
1376399744,12cyclictest0-21swapper/206:05:522
1375899744,11cyclictest0-21swapper/005:20:550
1375899743,24cyclictest0-21swapper/006:41:030
13758997415,10cyclictest30892-21python06:46:070
1376399735,9cyclictest121850irq/46-eth005:45:522
1376399735,9cyclictest121850irq/46-eth005:45:522
1375899733,17cyclictest0-21swapper/005:40:550
248599720,8rtkit-daemon0-21swapper/006:25:571
1376399724,48cyclictest0-21swapper/206:25:522
1376399715,58cyclictest0-21swapper/205:35:572
1376399714,59cyclictest0-21swapper/206:35:592
1376399714,59cyclictest0-21swapper/205:05:442
248599700,8rtkit-daemon0-21swapper/008:20:453
1376399703,11cyclictest28150-21latency06:41:042
248599690,9rtkit-daemon0-21swapper/009:25:281
248599690,8rtkit-daemon1051-21rs:main1
248599690,7rtkit-daemon0-21swapper/007:46:091
248599680,8rtkit-daemon0-21swapper/009:39:421
13764996817,32cyclictest0-21swapper/310:30:413
248599670,9rtkit-daemon0-21swapper/009:42:501
248599670,6rtkit-daemon32417-21strings07:41:021
248599660,9rtkit-daemon0-21swapper/005:32:521
248599660,8rtkit-daemon0-21swapper/007:38:091
1376299664,46cyclictest0-21swapper/109:12:211
13758996612,12cyclictest0-21swapper/005:05:450
248599650,8rtkit-daemon0-21swapper/006:10:351
248599650,7rtkit-daemon0-21swapper/006:10:581
248599640,9rtkit-daemon0-21swapper/006:51:191
248599640,8rtkit-daemon0-21swapper/010:35:031
248599620,6rtkit-daemon15184-21strings05:06:081
248599620,6rtkit-daemon15184-21strings05:06:081
248599620,5rtkit-daemon3662-21ssh08:35:371
248599620,5rtkit-daemon3662-21ssh08:35:371
248599610,7rtkit-daemon0-21swapper/006:45:571
248599610,6rtkit-daemon0-21swapper/007:04:261
248599610,6rtkit-daemon0-21swapper/006:01:061
248599600,7rtkit-daemon0-21swapper/006:15:431
13764996031,19cyclictest0-21swapper/306:50:563
13762996030,12cyclictest14574-21fschecks_time07:15:571
13762996030,12cyclictest14574-21fschecks_time07:15:571
248599590,5rtkit-daemon7773-21wc10:15:563
13764995912,28cyclictest10570-21fschecks_count10:20:483
1376499584,46cyclictest0-21swapper/308:50:533
13762995820,8cyclictest7728-21fschecks_count08:40:521
1376299574,35cyclictest0-21swapper/109:52:221
13762995723,11cyclictest0-21swapper/107:11:031
13762995723,11cyclictest0-21swapper/107:11:031
1376499563,47cyclictest0-21swapper/308:31:393
13764995619,30cyclictest21769-21hddtemp_smartct07:25:573
1376299565,26cyclictest0-21swapper/110:06:071
13762995619,13cyclictest0-21swapper/107:33:501
16772552,11sleep30-21swapper/307:45:003
1376499554,44cyclictest0-21swapper/308:17:563
1376299555,28cyclictest3162-21yum-updatesd-he05:50:531
248599540,4rtkit-daemon820-21taskset10:05:563
1376499545,15cyclictest0-21swapper/308:01:493
1376499544,31cyclictest0-21swapper/307:51:053
1376499544,31cyclictest0-21swapper/307:51:053
1376499544,29cyclictest0-21swapper/306:10:583
1376499544,12cyclictest0-21swapper/308:09:183
13764995437,11cyclictest22019-21gltestperf05:21:023
13764995422,14cyclictest0-21swapper/308:46:083
1376299544,26cyclictest0-21swapper/108:56:021
1376299543,33cyclictest22030-21cat07:26:021
13762995412,23cyclictest0-21swapper/110:21:041
253612532,11sleep30-21swapper/305:26:423
13764995332,14cyclictest0-21swapper/307:10:503
13764995332,14cyclictest0-21swapper/307:10:503
1376499533,43cyclictest0-21swapper/307:19:343
1376499533,43cyclictest0-21swapper/307:19:343
13764995321,13cyclictest0-21swapper/308:25:583
1376499532,44cyclictest0-21swapper/307:22:393
1376299534,23cyclictest28776-21munin-node10:01:031
13762995322,12cyclictest0-21swapper/106:40:581
13762995320,13cyclictest0-21swapper/108:48:491
57882523,11sleep30-21swapper/310:13:363
248599520,4rtkit-daemon2484-21rtkit-daemon09:57:043
248599520,4rtkit-daemon2484-21rtkit-daemon07:10:033
207722523,10sleep30-21swapper/305:19:043
1376499524,9cyclictest31346-21fschecks_count09:15:503
1376499524,9cyclictest31346-21fschecks_count09:15:503
1376499524,28cyclictest0-21swapper/309:50:363
1376499524,28cyclictest0-21swapper/308:10:493
13764995235,11cyclictest17024-21unixbench-2d09:41:073
13764995234,10cyclictest1526-21gltestperf05:46:003
13764995234,10cyclictest1526-21gltestperf05:46:003
1376299524,30cyclictest0-21swapper/108:00:521
1376299524,27cyclictest0-21swapper/105:30:431
1376299524,27cyclictest0-21swapper/105:21:111
99172513,42sleep310004-21ssh09:31:033
34652514,12sleep30-21swapper/305:50:563
248599510,4rtkit-daemon2484-21rtkit-daemon10:25:333
248599510,4rtkit-daemon2484-21rtkit-daemon10:01:413
248599510,4rtkit-daemon2484-21rtkit-daemon08:56:293
248599510,4rtkit-daemon2484-21rtkit-daemon08:38:223
248599510,4rtkit-daemon2484-21rtkit-daemon08:38:223
248599510,4rtkit-daemon2484-21rtkit-daemon07:57:093
1376499515,38cyclictest0-21swapper/307:36:003
1376499515,28cyclictest0-21swapper/305:11:193
1376499515,13cyclictest0-21swapper/309:11:063
1376499514,27cyclictest0-21swapper/306:35:413
1376499514,27cyclictest0-21swapper/305:45:433
13764995135,10cyclictest8265-21cut06:00:553
13764995133,11cyclictest11228-21gltestperf06:06:003
13764995119,12cyclictest8569-21python08:41:053
13764995119,12cyclictest0-21swapper/309:29:033
248599500,4rtkit-daemon2484-21rtkit-daemon09:01:213
1376499504,27cyclictest0-21swapper/306:00:433
1376499504,12cyclictest0-21swapper/306:49:453
1376499504,10cyclictest25319-21sed07:30:583
1376499503,38cyclictest0-21swapper/306:21:133
13764995016,28cyclictest361ktimersoftd/309:35:533
1376299504,26cyclictest0-21swapper/105:55:591
1376499495,26cyclictest0-21swapper/305:36:063
1376499494,27cyclictest0-21swapper/306:26:083
1376499494,12cyclictest0-21swapper/307:45:523
1376499493,39cyclictest0-21swapper/309:06:063
13764994918,13cyclictest0-21swapper/309:21:023
13764994918,13cyclictest0-21swapper/305:06:113
13764994918,13cyclictest0-21swapper/305:06:113
13764994915,26cyclictest24831-21tail06:35:533
1376499484,27cyclictest0-21swapper/307:01:063
1376499484,26cyclictest0-21swapper/309:49:163
13764994832,9cyclictest24446-21turbostat06:35:403
1376499474,25cyclictest0-21swapper/306:56:033
1376499464,24cyclictest0-21swapper/305:30:543
1376499444,32cyclictest0-21swapper/306:15:533
1376499444,25cyclictest0-21swapper/306:44:443
1376299424,30cyclictest0-21swapper/105:05:441
1376499383,30cyclictest0-21swapper/305:05:443
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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