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2026-08-21 - 16:07

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 792 highest latencies:
System rack1slot6s.osadl.org (updated Fri Aug 21, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
981499963,39cyclictest7357-21runrttasks09:35:122
981299944,83cyclictest0-21swapper/007:55:380
981299943,83cyclictest21191-21latency_hist10:45:230
981499903,37cyclictest0-21swapper/209:07:282
9814999024,28cyclictest1227-21runrttasks08:50:442
981299894,77cyclictest0-21swapper/010:30:510
9814998842,12cyclictest6686-21grep07:55:472
981499884,32cyclictest0-21swapper/210:10:552
981299884,76cyclictest0-21swapper/010:00:360
981299883,78cyclictest0-21swapper/010:55:260
981499874,36cyclictest0-21swapper/209:40:232
9813998723,57cyclictest0-21swapper/107:55:441
981299875,75cyclictest0-21swapper/010:47:420
981299874,77cyclictest0-21swapper/008:05:500
981299874,74cyclictest23254-21crond09:10:260
111762870,4sleep121-21ksoftirqd/111:17:281
981499865,37cyclictest0-21swapper/211:07:392
9813998622,58cyclictest0-21swapper/108:55:451
981299864,75cyclictest0-21swapper/010:50:330
981299863,77cyclictest0-21swapper/009:45:360
981299863,76cyclictest0-21swapper/009:00:540
981299863,76cyclictest0-21swapper/009:00:540
981299863,76cyclictest0-21swapper/008:21:020
981299863,76cyclictest0-21swapper/008:21:020
981299863,76cyclictest0-21swapper/008:05:080
981299854,74cyclictest0-21swapper/011:16:140
981299853,76cyclictest0-21swapper/009:58:590
981299853,74cyclictest1163-21ssh10:14:520
9813998415,61cyclictest0-21swapper/109:17:481
981299846,71cyclictest0-21swapper/008:18:140
981299844,72cyclictest0-21swapper/008:25:390
981299843,73cyclictest4839-21ssh08:40:490
9813998336,41cyclictest13204-21cpuspeed_turbos08:05:441
9813998333,43cyclictest31837-21cpuspeed_turbos06:35:471
9813998328,48cyclictest9961-21ls10:25:561
9813998327,48cyclictest0-21swapper/109:00:441
9813998327,48cyclictest0-21swapper/109:00:441
981299835,71cyclictest0-21swapper/008:56:020
981299833,73cyclictest0-21swapper/008:37:160
981299833,72cyclictest0-21swapper/009:21:250
9813998217,58cyclictest0-21swapper/108:50:421
981299824,72cyclictest0-21swapper/008:53:400
981299824,71cyclictest0-21swapper/009:15:440
981299824,71cyclictest0-21swapper/008:45:420
981299824,71cyclictest0-21swapper/007:55:300
981299824,71cyclictest0-21swapper/007:40:490
981299824,71cyclictest0-21swapper/007:40:490
981299823,72cyclictest0-21swapper/009:50:490
981299823,72cyclictest0-21swapper/007:50:300
981299823,71cyclictest0-21swapper/009:29:570
9813998137,37cyclictest1227-21runrttasks10:05:081
981299813,71cyclictest0-21swapper/009:36:340
9813998025,48cyclictest4868-21gltestperf06:45:501
9813998022,51cyclictest0-21swapper/109:45:391
9813998021,53cyclictest0-21swapper/108:00:521
9813998019,54cyclictest0-21swapper/109:30:391
9813998015,58cyclictest0-21swapper/109:12:311
981299805,69cyclictest0-21swapper/010:25:360
981299803,71cyclictest0-21swapper/006:00:460
981299803,70cyclictest0-21swapper/011:12:080
9813997932,40cyclictest12835-21needreboot10:30:491
9813997929,45cyclictest29621-21aten2.4-expect08:30:391
9813997913,59cyclictest0-21swapper/107:26:011
981299794,67cyclictest1570-21munin-node10:15:350
9812997932,41cyclictest18705-21cpuspeed_turbos07:15:450
981299793,70cyclictest0-21swapper/010:24:010
981299793,70cyclictest0-21swapper/010:24:010
981299793,69cyclictest0-21swapper/010:07:440
9813997831,41cyclictest1227-21runrttasks09:56:551
981299786,66cyclictest0-21swapper/008:10:410
981299786,65cyclictest0-21swapper/008:35:270
981299784,67cyclictest0-21swapper/011:05:350
981299784,66cyclictest0-21swapper/009:30:480
981299783,69cyclictest0-21swapper/011:02:410
981299783,69cyclictest0-21swapper/011:02:410
981299783,68cyclictest0-21swapper/009:40:360
981299783,68cyclictest0-21swapper/009:40:360
981299783,68cyclictest0-21swapper/009:10:460
981299783,36cyclictest0-21swapper/010:37:220
9813997738,12cyclictest11993-21runrttasks05:53:131
9813997733,12cyclictest24781-21munin-node08:21:041
9813997733,12cyclictest24781-21munin-node08:21:041
9812997736,35cyclictest25842-21switchtime06:21:030
981299773,68cyclictest0-21swapper/005:50:440
981299773,66cyclictest0-21swapper/007:10:310
9813997632,37cyclictest1849-21taskset09:25:441
9813997623,46cyclictest0-21swapper/109:38:401
9813997619,50cyclictest0-21swapper/110:40:381
9813997617,53cyclictest0-21swapper/110:17:441
981299763,66cyclictest0-21swapper/007:30:420
981299763,65cyclictest27609-21gltestperf06:25:530
9813997533,36cyclictest17402-21taskset10:38:301
9813997524,45cyclictest0-21swapper/111:08:291
9813997520,49cyclictest0-21swapper/107:16:291
981299753,65cyclictest0-21swapper/006:59:550
981299753,65cyclictest0-21swapper/006:59:550
9813997430,38cyclictest4996-21munin-node10:20:551
9813997430,38cyclictest4996-21munin-node10:20:551
9813997428,40cyclictest31913-21df_inode11:00:371
9813997428,40cyclictest31913-21df_inode11:00:371
9813997425,43cyclictest7373-21runrttasks06:50:521
9813997421,47cyclictest2861-21aten_r1power_fr07:50:391
9813997413,54cyclictest0-21swapper/108:10:321
981299744,64cyclictest1227-21runrttasks06:40:430
981299743,65cyclictest0-21swapper/006:00:280
981299743,49cyclictest0-21swapper/006:45:580
981399739,56cyclictest0-21swapper/109:42:441
981399739,56cyclictest0-21swapper/109:42:441
9813997328,39cyclictest20763-21cat09:55:261
9813997315,51cyclictest0-21swapper/110:55:461
9813997312,55cyclictest0-21swapper/107:30:431
981299733,63cyclictest0-21swapper/006:51:030
981299733,63cyclictest0-21swapper/006:10:440
981299733,63cyclictest0-21swapper/006:10:440
981299733,51cyclictest31504-21munin-node06:35:460
9815997218,39cyclictest0-21swapper/311:12:523
9813997231,35cyclictest22140-21taskset09:06:041
9813997225,41cyclictest1096-21fschecks_time08:35:441
9813997223,42cyclictest26900-21fschecks_count08:25:451
9813997222,44cyclictest0-21swapper/109:20:361
981299723,63cyclictest0-21swapper/007:39:460
981299723,63cyclictest0-21swapper/007:01:010
9812997229,38cyclictest24307-21needreboot07:25:540
9815997121,45cyclictest0-21swapper/309:21:363
9813997130,14cyclictest12461-21munin-node07:00:571
9813997125,39cyclictest7182-21aten_r1power_fr08:45:391
9813997123,41cyclictest28066-21cut10:05:411
9813997123,22cyclictest0-21swapper/110:49:441
9813997122,42cyclictest247321munin-node10:50:431
9813997120,44cyclictest0-21swapper/107:35:491
9813997115,16cyclictest0-21swapper/108:40:421
981299714,60cyclictest0-21swapper/006:35:320
9815997029,23cyclictest28012-21ssh10:05:413
9815997029,21cyclictest107550irq/46-eth009:55:533
9813997029,35cyclictest14451-21sshd05:59:081
9813997024,40cyclictest0-21swapper/110:10:351
9813997024,39cyclictest0-21swapper/111:10:361
981299704,47cyclictest0-21swapper/007:11:010
981299703,61cyclictest0-21swapper/007:22:590
9815996925,27cyclictest29371-21ssh10:55:493
9813996927,36cyclictest15714-21crond07:10:311
9813996926,37cyclictest29244-21taskset06:30:441
9813996918,44cyclictest0-21swapper/106:42:031
9813996916,47cyclictest0-21swapper/108:15:571
981299693,60cyclictest0-21swapper/006:17:150
981299693,60cyclictest0-21swapper/006:05:490
9815996835,26cyclictest15092-21timerandwakeup07:06:013
9815996832,29cyclictest20801-21df_abs09:05:413
9815996820,34cyclictest0-21swapper/309:10:323
9813996812,50cyclictest0-21swapper/106:25:561
9815996724,27cyclictest0-21swapper/308:13:223
9813996729,32cyclictest1842-21sort07:46:011
9813996722,39cyclictest0-21swapper/106:00:431
9815996625,34cyclictest28873-21ssh09:16:433
9815996625,27cyclictest0-21swapper/310:30:463
981399668,52cyclictest0-21swapper/107:15:311
9813996650,11cyclictest19735-21munin-node06:10:441
9813996650,11cyclictest19735-21munin-node06:10:441
219499660,4rtkit-daemon2193-21rtkit-daemon09:21:062
9815996532,11cyclictest26728-21munin-node06:26:073
9815996526,32cyclictest10439-21ssh10:27:013
9815996526,25cyclictest20401-21ssh10:42:183
9815996524,27cyclictest0-21swapper/311:15:313
9815996521,25cyclictest0-21swapper/310:50:523
9813996522,37cyclictest31181-21munin-node07:40:501
9813996522,37cyclictest31181-21munin-node07:40:501
9813996518,41cyclictest0-21swapper/106:58:371
9813996518,41cyclictest0-21swapper/106:58:371
9815996428,16cyclictest107550irq/46-eth008:20:573
9815996428,16cyclictest107550irq/46-eth008:20:573
9815996427,24cyclictest13282-21ssh09:42:343
9815996427,24cyclictest13282-21ssh09:42:343
9815996421,27cyclictest0-21swapper/310:10:483
981599642,54cyclictest0-21swapper/305:50:503
9815996419,32cyclictest0-21swapper/308:01:403
219499640,21rtkit-daemon2193-21rtkit-daemon11:06:473
9815996332,19cyclictest107550irq/46-eth010:36:093
9815996327,22cyclictest26115-21ssh10:01:233
9815996327,19cyclictest16579-21ssh09:00:023
9815996326,24cyclictest3465-21ssh08:40:173
9815996326,24cyclictest22607-21ssh08:20:213
9815996326,23cyclictest1297-21ssh11:02:563
9815996326,23cyclictest1297-21ssh11:02:563
9815996323,22cyclictest0-21swapper/308:06:213
9815996322,27cyclictest0-21swapper/309:39:363
981599632,54cyclictest0-21swapper/307:39:533
9815996222,26cyclictest0-21swapper/308:53:073
9815996221,28cyclictest0-21swapper/307:58:503
9815996217,29cyclictest0-21swapper/308:47:333
9815996142,12cyclictest22503-21interrupts10:45:453
9815996127,17cyclictest107550irq/46-eth010:16:423
9815996118,30cyclictest0-21swapper/309:01:383
9815996118,30cyclictest0-21swapper/309:01:383
9815996118,27cyclictest0-21swapper/307:11:543
9813996143,11cyclictest1227-21runrttasks06:06:341
219499610,7rtkit-daemon0-21swapper/310:21:262
219499610,7rtkit-daemon0-21swapper/310:21:262
9815996022,24cyclictest0-21swapper/309:54:573
981599602,52cyclictest0-21swapper/307:15:473
9815996018,28cyclictest0-21swapper/308:31:233
9813996032,21cyclictest1227-21runrttasks06:24:471
9813996026,28cyclictest0-21swapper/107:24:201
219499600,7rtkit-daemon0-21swapper/311:14:392
219499600,7rtkit-daemon0-21swapper/209:30:363
9815995924,20cyclictest107550irq/46-eth006:36:083
9815995921,25cyclictest0-21swapper/308:41:433
9815995919,27cyclictest0-21swapper/309:46:003
9815995918,19cyclictest0-21swapper/307:54:193
9815995917,26cyclictest0-21swapper/308:28:003
981499595,37cyclictest0-21swapper/209:10:482
9813995930,16cyclictest21960-21munin-node06:15:541
219499590,7rtkit-daemon0-21swapper/311:02:402
219499590,7rtkit-daemon0-21swapper/311:02:402
219499590,5rtkit-daemon0-21swapper/206:05:593
9815995836,17cyclictest0-21swapper/306:21:503
9815995836,17cyclictest0-21swapper/306:14:243
9815995836,17cyclictest0-21swapper/306:14:243
9815995835,18cyclictest0-21swapper/306:49:213
9815995832,11cyclictest107550irq/46-eth010:25:213
9815995832,11cyclictest107550irq/46-eth010:25:213
9815995816,13cyclictest0-21swapper/307:32:363
9814995810,27cyclictest0-21swapper/210:45:512
9812995815,37cyclictest9785-21latency_hist05:50:340
981599574,47cyclictest0-21swapper/309:27:533
981599573,34cyclictest0-21swapper/306:31:033
981499574,36cyclictest0-21swapper/210:16:492
981499574,36cyclictest0-21swapper/208:16:232
9814995711,26cyclictest0-21swapper/208:35:422
9815995633,17cyclictest1002-21sshd07:44:263
9815995633,17cyclictest1002-21sshd07:44:263
981599563,33cyclictest0-21swapper/307:45:403
9815995616,35cyclictest0-21swapper/306:02:043
981499564,35cyclictest0-21swapper/211:00:222
9814995612,20cyclictest0-21swapper/209:45:352
9815995516,33cyclictest0-21swapper/307:29:273
981499559,29cyclictest0-21swapper/210:52:212
981499554,34cyclictest0-21swapper/209:29:342
981499554,33cyclictest1080-21lldpd09:50:442
9814995537,11cyclictest22688-21grep09:55:572
9814995532,10cyclictest0-21swapper/209:40:342
9814995532,10cyclictest0-21swapper/209:40:342
9814995512,35cyclictest281ktimersoftd/210:00:582
9815995417,32cyclictest0-21swapper/307:01:233
9815995417,31cyclictest0-21swapper/306:56:243
9815995417,31cyclictest0-21swapper/306:56:243
9815995417,13cyclictest0-21swapper/305:57:503
9815995416,33cyclictest0-21swapper/306:54:203
981499549,25cyclictest0-21swapper/207:05:412
981499544,34cyclictest0-21swapper/209:01:452
981499544,34cyclictest0-21swapper/209:01:452
981499544,34cyclictest0-21swapper/207:53:072
981499544,30cyclictest0-21swapper/208:40:472
981499544,30cyclictest0-21swapper/208:35:282
181602545,42sleep20-21swapper/208:11:092
9815995317,31cyclictest0-21swapper/307:22:163
9815995316,32cyclictest0-21swapper/306:16:293
981499535,35cyclictest0-21swapper/208:04:042
981499535,14cyclictest0-21swapper/211:17:312
981499534,31cyclictest14612-21ssh10:35:232
981499534,30cyclictest0-21swapper/207:35:492
981499534,28cyclictest0-21swapper/207:49:542
981499533,37cyclictest0-21swapper/208:45:502
9814995314,12cyclictest0-21swapper/208:58:042
9813995333,13cyclictest9943-21wc05:50:341
9815995217,30cyclictest0-21swapper/306:42:353
981499526,40cyclictest0-21swapper/208:07:502
981499525,28cyclictest0-21swapper/208:29:072
981499524,30cyclictest0-21swapper/209:15:372
981499524,25cyclictest0-21swapper/207:12:282
9814995235,10cyclictest12852-21grep05:55:482
9814995221,14cyclictest16125-21needreboot10:35:512
9814995211,27cyclictest0-21swapper/208:22:212
9814995211,27cyclictest0-21swapper/208:22:212
981499515,28cyclictest0-21swapper/206:10:532
981499515,28cyclictest0-21swapper/206:10:532
981499515,27cyclictest1227-21runrttasks10:26:492
981499515,13cyclictest0-21swapper/210:08:112
981499514,24cyclictest0-21swapper/205:55:292
9814995121,13cyclictest0-21swapper/210:40:352
981499505,27cyclictest0-21swapper/207:21:012
981499505,27cyclictest0-21swapper/206:35:512
981499504,28cyclictest0-21swapper/206:55:442
981499504,28cyclictest0-21swapper/206:55:442
981499504,28cyclictest0-21swapper/206:26:002
981499504,28cyclictest0-21swapper/206:20:532
981499504,28cyclictest0-21swapper/206:06:002
981499504,27cyclictest0-21swapper/206:50:492
981499504,27cyclictest0-21swapper/206:05:342
9814995021,22cyclictest0-21swapper/207:25:512
981499494,36cyclictest0-21swapper/207:30:452
981499494,28cyclictest0-21swapper/207:15:482
981499494,27cyclictest0-21swapper/207:44:542
981499494,27cyclictest0-21swapper/207:44:542
981499494,27cyclictest0-21swapper/206:40:452
981499494,26cyclictest11440-21sort07:00:432
981499484,27cyclictest0-21swapper/206:46:032
981499484,27cyclictest0-21swapper/206:15:562
9814994826,17cyclictest30879-21grep06:31:042
96562484,6sleep30-21swapper/305:49:043
981499343,7cyclictest9785-21latency_hist05:50:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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