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2026-07-12 - 02:05

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 792 highest latencies:
System rack1slot6s.osadl.org (updated Sun Jul 12, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88799911316,50cyclictest30482-21proc_pri21:09:020
8882999944,14cyclictest0-21swapper/223:08:572
219499920,14rtkit-daemon2193-21rtkit-daemon21:10:163
219499900,5rtkit-daemon2193-21rtkit-daemon21:52:591
219499890,30rtkit-daemon0-21swapper/021:03:461
219499870,6rtkit-daemon2193-21rtkit-daemon23:06:271
219499870,30rtkit-daemon27947-21yum-updatesd-he19:08:431
219499850,5rtkit-daemon2193-21rtkit-daemon22:32:283
219499840,26rtkit-daemon8871-21cyclictest20:26:181
219499840,26rtkit-daemon0-21swapper/018:34:151
219499830,24rtkit-daemon26954-21munin-node20:13:561
219499820,23rtkit-daemon31612-21ssh21:11:311
219499820,22rtkit-daemon0-21swapper/019:03:511
219499800,5rtkit-daemon2193-21rtkit-daemon22:15:291
219499800,5rtkit-daemon2193-21rtkit-daemon22:01:221
219499800,5rtkit-daemon2193-21rtkit-daemon22:01:221
219499790,27rtkit-daemon0-21swapper/019:19:051
219499790,23rtkit-daemon0-21swapper/020:38:553
219499780,25rtkit-daemon0-21swapper/019:33:501
219499780,21rtkit-daemon0-21swapper/019:30:051
219499780,21rtkit-daemon0-21swapper/019:30:051
219499770,20rtkit-daemon0-21swapper/018:48:521
219499770,20rtkit-daemon0-21swapper/018:48:521
219499750,6rtkit-daemon0-21swapper/322:53:573
219499750,5rtkit-daemon2193-21rtkit-daemon21:39:521
219499750,21rtkit-daemon0-21swapper/019:27:351
219499750,20rtkit-daemon0-21swapper/020:48:241
219499750,20rtkit-daemon0-21swapper/020:48:241
888399744,61cyclictest0-21swapper/323:12:213
219499740,20rtkit-daemon0-21swapper/020:22:251
219499740,20rtkit-daemon0-21swapper/019:43:421
219499740,20rtkit-daemon0-21swapper/019:00:591
219499740,19rtkit-daemon0-21swapper/020:01:261
219499730,20rtkit-daemon0-21swapper/019:17:361
219499730,19rtkit-daemon0-21swapper/020:37:171
219499730,19rtkit-daemon0-21swapper/020:04:261
219499730,19rtkit-daemon0-21swapper/020:04:261
219499720,20rtkit-daemon0-21swapper/020:39:401
888399714,59cyclictest0-21swapper/322:14:063
219499710,5rtkit-daemon2193-21rtkit-daemon23:09:041
219499700,4rtkit-daemon2193-21rtkit-daemon21:16:161
219499690,5rtkit-daemon2193-21rtkit-daemon21:24:161
8882996848,13cyclictest0-21swapper/220:58:542
219499680,6rtkit-daemon2142-21grep20:28:481
219499680,6rtkit-daemon21383-21tr18:53:511
219499680,5rtkit-daemon2193-21rtkit-daemon23:25:561
219499680,5rtkit-daemon2193-21rtkit-daemon21:54:071
219499680,4rtkit-daemon2193-21rtkit-daemon22:44:201
887999674,41cyclictest0-21swapper/021:13:500
887999673,48cyclictest0-21swapper/022:01:230
887999673,48cyclictest0-21swapper/022:01:230
219499670,5rtkit-daemon2193-21rtkit-daemon22:36:131
219499670,4rtkit-daemon2193-21rtkit-daemon23:49:551
888399664,55cyclictest0-21swapper/320:53:523
888399664,53cyclictest0-21swapper/323:28:493
8882996648,13cyclictest0-21swapper/223:48:402
219499660,5rtkit-daemon2193-21rtkit-daemon23:34:481
219499660,5rtkit-daemon2193-21rtkit-daemon22:39:051
219499660,5rtkit-daemon2193-21rtkit-daemon22:39:051
219499660,4rtkit-daemon2193-21rtkit-daemon23:55:321
219499660,4rtkit-daemon2193-21rtkit-daemon23:55:321
219499660,4rtkit-daemon2193-21rtkit-daemon22:25:131
219499660,4rtkit-daemon2193-21rtkit-daemon22:10:141
219499660,4rtkit-daemon2193-21rtkit-daemon21:37:001
888399654,52cyclictest0-21swapper/323:23:403
219499650,4rtkit-daemon2193-21rtkit-daemon23:45:401
219499650,4rtkit-daemon2193-21rtkit-daemon23:39:101
219499650,4rtkit-daemon2193-21rtkit-daemon23:13:341
219499650,4rtkit-daemon2193-21rtkit-daemon22:52:121
219499650,4rtkit-daemon2193-21rtkit-daemon21:31:381
888399644,53cyclictest8265-21fschecks_count23:48:443
887999644,51cyclictest0-21swapper/023:08:590
8879996415,42cyclictest6600-21proc_pri20:34:050
219499640,7rtkit-daemon0-21swapper/018:38:521
219499640,5rtkit-daemon2193-21rtkit-daemon23:02:421
219499640,5rtkit-daemon1480-21diskmemload20:49:021
219499640,5rtkit-daemon1480-21diskmemload20:49:021
888399635,50cyclictest0-21swapper/322:33:473
888399634,51cyclictest0-21swapper/322:08:403
888399634,51cyclictest0-21swapper/321:58:503
888399634,51cyclictest0-21swapper/321:58:503
8882996346,10cyclictest32520-21ssh22:48:452
887999634,51cyclictest0-21swapper/022:07:040
219499630,4rtkit-daemon2193-21rtkit-daemon22:04:141
219499630,12rtkit-daemon2193-21rtkit-daemon22:09:590
888399626,48cyclictest0-21swapper/320:23:493
888399624,51cyclictest0-21swapper/322:48:503
888399624,50cyclictest0-21swapper/322:44:163
888399624,50cyclictest0-21swapper/320:46:523
888399624,50cyclictest0-21swapper/320:46:523
888299625,49cyclictest0-21swapper/222:08:542
8882996241,14cyclictest0-21swapper/221:54:012
8882996241,14cyclictest0-21swapper/221:08:512
219499620,8rtkit-daemon0-21swapper/121:46:451
219499620,4rtkit-daemon2193-21rtkit-daemon21:06:242
219499620,2rtkit-daemon0-21swapper/122:28:581
888399614,49cyclictest0-21swapper/321:19:323
888399614,49cyclictest0-21swapper/321:19:323
888399613,51cyclictest0-21swapper/321:37:523
8882996144,11cyclictest0-21swapper/223:38:462
8882996142,13cyclictest0-21swapper/221:48:472
8882996139,15cyclictest0-21swapper/221:38:582
888299613,50cyclictest0-21swapper/219:14:062
888199615,48cyclictest0-21swapper/120:53:551
887999614,38cyclictest0-21swapper/023:54:020
887999614,38cyclictest0-21swapper/023:54:020
887999614,25cyclictest0-21swapper/023:43:260
887999614,12cyclictest0-21swapper/023:53:020
219499610,6rtkit-daemon0-21swapper/019:49:041
219499610,6rtkit-daemon0-21swapper/019:38:501
219499610,4rtkit-daemon2193-21rtkit-daemon23:31:330
219499610,3rtkit-daemon18-21rcuc/122:19:431
219499610,13rtkit-daemon2193-21rtkit-daemon23:45:250
888399605,48cyclictest0-21swapper/323:38:393
888399602,52cyclictest0-21swapper/322:41:133
888399602,52cyclictest0-21swapper/322:41:133
8882996041,12cyclictest0-21swapper/220:34:092
887999604,13cyclictest0-21swapper/022:53:410
887999604,12cyclictest0-21swapper/021:40:020
475826010,7sleep20-21swapper/223:43:432
219499600,12rtkit-daemon2193-21rtkit-daemon21:52:440
888399599,25cyclictest0-21swapper/320:03:463
888399599,25cyclictest0-21swapper/320:03:463
888399595,47cyclictest1866-21sendmail21:38:533
888299595,47cyclictest0-21swapper/221:28:542
8882995942,12cyclictest0-21swapper/221:24:242
888299594,47cyclictest0-21swapper/221:43:552
8881995924,20cyclictest22759-21runrttasks23:23:111
141192593,48sleep20-21swapper/223:58:262
141192593,48sleep20-21swapper/223:58:262
888399585,46cyclictest0-21swapper/320:33:533
888399584,46cyclictest0-21swapper/323:19:023
8882995838,13cyclictest0-21swapper/220:53:552
8882995837,13cyclictest0-21swapper/223:29:232
8882995830,13cyclictest0-21swapper/221:58:412
8882995830,13cyclictest0-21swapper/221:58:412
8882995824,28cyclictest0-21swapper/220:50:482
8882995824,28cyclictest0-21swapper/220:50:482
888199584,45cyclictest4148-21fschecks_count21:18:501
888199584,45cyclictest4148-21fschecks_count21:18:501
888199584,36cyclictest0-21swapper/122:53:341
887999584,22cyclictest0-21swapper/020:41:130
887999584,13cyclictest0-21swapper/022:39:000
887999584,13cyclictest0-21swapper/022:39:000
219499580,6rtkit-daemon0-21swapper/021:03:011
219499580,3rtkit-daemon18-21rcuc/123:32:331
127522583,11sleep00-21swapper/021:31:190
888399574,46cyclictest24271-21sed18:58:563
888399574,46cyclictest11659-21runrttasks23:04:373
8882995742,10cyclictest0-21swapper/222:28:082
8882995741,11cyclictest0-21swapper/223:05:342
8882995738,13cyclictest0-21swapper/222:28:442
8882995729,22cyclictest0-21swapper/220:04:582
8882995729,22cyclictest0-21swapper/220:04:582
887999574,46cyclictest0-21swapper/023:03:460
887999574,46cyclictest0-21swapper/021:28:320
887999574,28cyclictest0-21swapper/020:28:340
219499570,7rtkit-daemon0-21swapper/020:08:491
219499570,7rtkit-daemon0-21swapper/020:08:491
219499570,5rtkit-daemon0-21swapper/018:29:521
888399565,44cyclictest12957-21ntp_states22:18:563
888399565,42cyclictest0-21swapper/320:48:573
888399565,42cyclictest0-21swapper/320:48:573
888399564,45cyclictest0-21swapper/320:58:513
888399564,27cyclictest0-21swapper/321:23:473
8882995636,13cyclictest8928-21cpuspeed20:38:472
8882995636,13cyclictest0-21swapper/219:39:062
8882995634,15cyclictest0-21swapper/221:33:542
887999564,13cyclictest0-21swapper/021:03:550
31702566,42sleep20-21swapper/219:23:492
111802563,47sleep00-21swapper/022:17:520
888399557,41cyclictest0-21swapper/320:08:533
888399557,41cyclictest0-21swapper/320:08:533
888399554,43cyclictest0-21swapper/323:44:033
888399552,47cyclictest0-21swapper/322:04:033
888299556,41cyclictest0-21swapper/220:43:442
888299556,41cyclictest0-21swapper/220:43:442
8882995541,10cyclictest0-21swapper/222:35:032
888299554,42cyclictest0-21swapper/223:19:022
888299554,31cyclictest0-21swapper/222:03:562
8882995538,12cyclictest0-21swapper/222:18:542
8882995535,14cyclictest0-21swapper/222:39:032
8882995535,14cyclictest0-21swapper/222:39:032
8882995534,14cyclictest0-21swapper/223:33:562
8882995534,14cyclictest0-21swapper/219:49:052
888299553,44cyclictest0-21swapper/220:33:082
8879995541,9cyclictest311882sleep022:47:120
887999554,44cyclictest0-21swapper/019:24:100
887999553,10cyclictest0-21swapper/020:58:500
8879995515,23cyclictest0-21swapper/021:43:450
219499550,5rtkit-daemon2193-21rtkit-daemon23:34:180
164642552,9sleep00-21swapper/019:49:070
888399545,40cyclictest1124-21snmpd21:03:523
888399544,44cyclictest0-21swapper/321:43:443
888399544,43cyclictest0-21swapper/323:34:003
888399543,46cyclictest0-21swapper/321:58:303
888399543,43cyclictest0-21swapper/320:29:113
888399542,10cyclictest0-21swapper/323:54:033
888399542,10cyclictest0-21swapper/323:54:033
888299545,30cyclictest0-21swapper/221:18:362
888299545,30cyclictest0-21swapper/221:18:362
8882995439,8cyclictest3061-21ssh22:53:412
8882995434,13cyclictest0-21swapper/218:28:392
887999545,35cyclictest0-21swapper/022:30:150
887999544,43cyclictest0-21swapper/023:25:210
887999544,30cyclictest0-21swapper/020:47:320
887999544,30cyclictest0-21swapper/020:47:320
887999544,24cyclictest0-21swapper/019:36:150
8879995419,13cyclictest0-21swapper/021:58:300
240122542,9sleep00-21swapper/022:35:350
232022542,10sleep00-21swapper/020:03:580
232022542,10sleep00-21swapper/020:03:580
186762542,9sleep30-21swapper/323:15:413
888399535,41cyclictest0-21swapper/319:34:103
888399535,29cyclictest0-21swapper/321:28:563
888399535,29cyclictest0-21swapper/318:29:063
888399534,41cyclictest25796-21munin-node19:04:043
888399533,42cyclictest0-21swapper/322:23:333
8883995320,14cyclictest0-21swapper/320:14:053
888399532,9cyclictest0-21swapper/323:00:433
888299534,43cyclictest0-21swapper/218:44:012
8882995338,9cyclictest29470-21ntp_states19:09:052
8882995334,12cyclictest0-21swapper/223:13:402
887999538,25cyclictest0-21swapper/023:01:530
887999534,31cyclictest0-21swapper/018:53:480
887999534,30cyclictest0-21swapper/021:35:510
887999534,29cyclictest0-21swapper/018:33:380
887999534,28cyclictest0-21swapper/020:54:010
887999534,28cyclictest0-21swapper/019:38:550
887999533,35cyclictest0-21swapper/022:48:380
219499530,6rtkit-daemon2193-21rtkit-daemon18:23:533
888399525,28cyclictest0-21swapper/321:52:293
8883995235,10cyclictest31445-21gltestperf19:13:573
888399522,44cyclictest0-21swapper/318:44:013
888299525,39cyclictest0-21swapper/220:14:022
888299524,30cyclictest0-21swapper/218:53:562
888299524,29cyclictest0-21swapper/222:58:462
8882995234,12cyclictest0-21swapper/222:43:522
8882995234,11cyclictest30199-21gltestperf20:18:542
8882995222,12cyclictest0-21swapper/218:28:522
888199524,30cyclictest0-21swapper/119:54:081
887999528,39cyclictest0-21swapper/023:19:010
887999524,28cyclictest0-21swapper/020:48:540
887999524,28cyclictest0-21swapper/020:48:540
887999524,28cyclictest0-21swapper/020:18:570
8879995232,14cyclictest0-21swapper/021:21:340
8879995232,14cyclictest0-21swapper/021:21:340
887999523,30cyclictest13757-21ssh22:19:570
8879995221,13cyclictest0-21swapper/019:04:080
85572524,6sleep00-21swapper/018:24:540
219499520,24rtkit-daemon0-21swapper/019:31:570
219499520,24rtkit-daemon0-21swapper/019:31:570
888399515,39cyclictest0-21swapper/318:34:113
888399515,28cyclictest0-21swapper/318:49:093
888399515,28cyclictest0-21swapper/318:49:093
888399514,41cyclictest0-21swapper/321:16:193
888399514,40cyclictest0-21swapper/319:09:053
888399512,43cyclictest0-21swapper/318:38:563
888299514,39cyclictest0-21swapper/219:04:042
8882995136,10cyclictest0-21swapper/219:58:562
8882995134,11cyclictest9116-21grep22:13:512
8882995134,10cyclictest1410-21gltestperf19:18:572
8882995112,31cyclictest0-21swapper/223:24:012
887999514,12cyclictest0-21swapper/020:29:050
887999513,42cyclictest0-21swapper/023:13:490
887999513,28cyclictest0-21swapper/019:54:100
8879995123,12cyclictest0-21swapper/022:23:350
8879995121,12cyclictest0-21swapper/019:09:070
888399505,37cyclictest0-21swapper/319:43:483
888299504,40cyclictest0-21swapper/221:17:432
888299504,21cyclictest0-21swapper/218:33:592
8882995032,13cyclictest0-21swapper/219:43:492
8882995030,13cyclictest0-21swapper/219:33:372
8882995020,13cyclictest0-21swapper/220:28:332
888199504,26cyclictest17071-21gltestperf18:43:591
887999504,28cyclictest0-21swapper/020:14:120
887999504,28cyclictest0-21swapper/018:49:040
887999504,28cyclictest0-21swapper/018:49:040
887999504,28cyclictest0-21swapper/018:34:030
257542500,7sleep041ktimersoftd/019:03:380
126282502,9sleep00-21swapper/019:43:430
888399495,37cyclictest0-21swapper/319:49:023
888399495,27cyclictest0-21swapper/319:59:143
888399494,36cyclictest0-21swapper/319:33:373
888399494,36cyclictest0-21swapper/319:33:373
8882994924,10cyclictest6888-21sendmail_mailqu19:29:032
887999494,27cyclictest0-21swapper/020:09:050
887999494,27cyclictest0-21swapper/020:09:050
887999494,27cyclictest0-21swapper/019:18:540
887999494,27cyclictest0-21swapper/018:44:120
8879994921,11cyclictest0-21swapper/019:14:040
888399484,38cyclictest0-21swapper/319:23:363
888399483,37cyclictest3167-21aten2.4-expect19:23:483
888399482,40cyclictest0-21swapper/318:53:533
888299484,27cyclictest0-21swapper/218:39:002
8882994819,12cyclictest0-21swapper/218:49:092
8882994819,12cyclictest0-21swapper/218:49:092
8882994818,12cyclictest0-21swapper/219:33:462
8883994730,10cyclictest10865-21fschecks_count19:38:533
888399472,40cyclictest0-21swapper/320:18:523
8882994732,9cyclictest24325-21yum-updatesd-he20:08:472
8882994732,9cyclictest24325-21yum-updatesd-he20:08:472
8879994718,12cyclictest0-21swapper/018:38:540
202212463,7sleep020362-21df_inode19:58:500
193132462,9sleep20-21swapper/219:55:302
888399442,37cyclictest0-21swapper/319:58:003
8882994327,11cyclictest0-21swapper/218:58:472
888199376,18cyclictest0-21swapper/118:28:391
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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