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2026-08-16 - 15:52

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 376 highest latencies:
System rack1slot6s.osadl.org (updated Sun Aug 16, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18094999631,58cyclictest0-21swapper/008:05:410
219499940,5rtkit-daemon2193-21rtkit-daemon07:35:471
18094999142,40cyclictest18095-21awk05:55:160
18094999127,56cyclictest0-21swapper/010:45:190
18094999127,56cyclictest0-21swapper/010:45:190
18094999040,33cyclictest32528-21tr10:05:210
18094999040,33cyclictest32528-21tr10:05:210
18100998923,59cyclictest0-21swapper/308:41:043
18100998923,59cyclictest0-21swapper/308:41:043
18094998926,54cyclictest0-21swapper/008:15:240
18094998731,48cyclictest0-21swapper/009:04:270
18094998721,58cyclictest0-21swapper/007:50:390
18094998628,51cyclictest6287-21ssh08:35:330
18094998537,32cyclictest32456-21gltestperf09:15:270
18094998534,43cyclictest32719-21aten2.4-expect06:25:260
18094998534,31cyclictest13557-21unixbench-2d08:45:440
18094998524,54cyclictest0-21swapper/009:35:320
18100998424,52cyclictest25510-21taskset10:43:333
18094998429,35cyclictest0-21swapper/009:50:350
18100998330,46cyclictest19532-21unixbench_singl08:05:453
18100998327,38cyclictest16870-21sh09:40:323
18094998331,44cyclictest6788-21crond11:05:040
18094998327,49cyclictest29429-21ssh10:00:240
18094998322,55cyclictest0-21swapper/011:09:020
18094998227,48cyclictest20943-21ntp_states10:35:340
18094998227,47cyclictest0-21swapper/010:14:270
18094998227,31cyclictest0-21swapper/008:35:090
18094998217,58cyclictest0-21swapper/009:46:240
18100998133,29cyclictest1124-21snmpd09:35:223
18100998132,27cyclictest12743-21runrttasks10:25:013
18100998130,42cyclictest30355-21munin-node10:00:383
18100998127,44cyclictest14234-21ssh10:25:293
18100998126,47cyclictest13470-21ssh07:58:193
18100998126,47cyclictest13470-21ssh07:58:193
18100998122,51cyclictest26655-21iostat_ios09:55:283
18094998137,17cyclictest12305-21grep07:55:370
18094998137,17cyclictest12305-21grep07:55:370
18094998132,42cyclictest0-21swapper/010:50:310
18094998131,30cyclictest13690-21sort10:25:210
18094998130,33cyclictest0-21swapper/008:20:420
18094998129,44cyclictest0-21swapper/008:50:360
18100998021,51cyclictest7528-21taskset08:37:213
18094998034,40cyclictest11378-21rm11:10:250
18094998032,40cyclictest19336-21sh10:35:040
18094998031,43cyclictest0-21swapper/008:27:430
18094998029,45cyclictest0-21swapper/009:30:230
18094998027,45cyclictest0-21swapper/008:00:280
219499790,4rtkit-daemon2193-21rtkit-daemon08:17:301
18100997924,48cyclictest0-21swapper/308:52:013
18094997930,42cyclictest0-21swapper/009:40:120
18094997926,15cyclictest0-21swapper/006:40:350
18094997924,47cyclictest0-21swapper/008:40:310
18094997924,47cyclictest0-21swapper/008:40:310
18094997919,54cyclictest0-21swapper/007:05:480
18100997827,32cyclictest31425-21munin-node07:30:243
18100997814,56cyclictest0-21swapper/310:36:423
18094997831,31cyclictest6528-21sh10:15:180
18094997830,42cyclictest0-21swapper/010:20:310
18094997830,42cyclictest0-21swapper/006:34:590
18094997829,35cyclictest0-21swapper/010:55:200
18094997828,44cyclictest0-21swapper/009:10:420
18094997827,34cyclictest0-21swapper/011:20:270
18094997826,46cyclictest0-21swapper/008:57:460
18094997823,46cyclictest0-21swapper/010:41:530
18094997822,50cyclictest0-21swapper/009:25:310
18094997822,50cyclictest0-21swapper/009:25:310
18100997728,31cyclictest23303-21ssh08:12:153
18100997728,30cyclictest26380-21ssh08:16:213
18100997725,43cyclictest11856-21taskset11:10:343
18100997724,45cyclictest277721rm08:20:223
18094997730,40cyclictest0-21swapper/011:15:140
18094997729,27cyclictest25041-21grep07:15:330
18094997728,42cyclictest0-21swapper/007:10:370
18094997728,41cyclictest0-21swapper/005:55:390
18094997728,41cyclictest0-21swapper/005:55:390
18100997632,36cyclictest3907-21runrttasks11:00:183
18100997630,28cyclictest1652-21ssh10:05:433
18100997630,28cyclictest1652-21ssh10:05:433
18100997629,28cyclictest31773-21ssh08:25:313
18100997628,28cyclictest23631-1kworker/3:1H07:45:113
18100997622,32cyclictest0-21swapper/311:16:493
18094997628,41cyclictest0-21swapper/009:05:340
18094997627,41cyclictest0-21swapper/007:35:260
18094997620,50cyclictest0-21swapper/009:59:520
18094997618,50cyclictest0-21swapper/007:40:360
18100997530,29cyclictest24244-21runrttasks09:03:223
18100997527,41cyclictest0-21swapper/309:48:253
18100997526,41cyclictest0-21swapper/306:05:293
18100997525,42cyclictest0-21swapper/310:45:363
18100997525,42cyclictest0-21swapper/310:45:363
18100997523,44cyclictest0-21swapper/308:31:493
18100997521,47cyclictest0-21swapper/311:06:093
18100997518,49cyclictest0-21swapper/306:25:373
18100997514,53cyclictest0-21swapper/308:56:113
18094997534,34cyclictest21195-21ssh08:10:250
18094997533,35cyclictest2926-21cpuspeed_turbos09:20:240
18094997530,39cyclictest0-21swapper/006:20:390
18100997433,32cyclictest17945-21gltestperf07:00:353
18100997426,41cyclictest29561-21runrttasks09:10:363
18100997425,28cyclictest0-21swapper/310:15:293
18100997424,31cyclictest0-21swapper/309:30:443
18100997422,45cyclictest316231ssh10:51:433
18100997421,35cyclictest0-21swapper/309:18:373
18094997428,30cyclictest0-21swapper/007:30:130
18100997332,35cyclictest13417-21munin-node08:45:433
18100997330,29cyclictest1824-21rt-features10:55:343
18100997329,37cyclictest2909-21tr09:20:243
18100997326,40cyclictest0-21swapper/308:03:413
18100997325,38cyclictest22769-21df_abs09:50:233
18094997329,37cyclictest13273-21if_eth006:50:350
18094997326,40cyclictest0-21swapper/006:15:290
18094997325,41cyclictest0-21swapper/006:55:330
18100997226,39cyclictest7970-21seq09:26:443
18100997226,39cyclictest7970-21seq09:26:443
18100997226,39cyclictest0-21swapper/310:30:273
18100997226,38cyclictest0-21swapper/306:25:153
18100997225,39cyclictest118641sshd06:47:403
18100997224,41cyclictest0-21swapper/311:20:363
18100997222,40cyclictest26910-21cat07:20:263
18094997227,38cyclictest12075-21munin-run06:50:140
18100997129,35cyclictest24511-21cpuspeed_turbos07:15:273
18100997125,15cyclictest0-21swapper/310:10:123
18100997124,39cyclictest0-21swapper/307:10:243
18100997123,30cyclictest26528-21cut06:10:413
18100997119,30cyclictest0-21swapper/309:07:573
18094997148,17cyclictest0-21swapper/006:05:450
18100997021,42cyclictest0-21swapper/307:46:083
18098997051,12cyclictest0-21swapper/109:00:351
18094997029,35cyclictest0-21swapper/007:00:270
18094997026,37cyclictest0-21swapper/006:36:430
18094997026,37cyclictest0-21swapper/006:36:430
18100996923,29cyclictest0-21swapper/305:57:393
18100996923,29cyclictest0-21swapper/305:57:393
18094996919,44cyclictest0-21swapper/007:24:020
18100996826,15cyclictest0-21swapper/307:25:253
18094996846,16cyclictest8109-21chrt07:46:060
18100996723,36cyclictest1365-21munin-node07:35:293
18100996720,25cyclictest11039-21cat07:55:123
18094996728,33cyclictest371-21python07:30:440
18100996624,25cyclictest21679-21latency_hist07:10:133
18100996618,32cyclictest0-21swapper/306:50:253
1809999664,53cyclictest0-21swapper/210:25:302
1809999664,53cyclictest0-21swapper/209:25:372
1809999664,53cyclictest0-21swapper/209:25:372
1809999664,53cyclictest0-21swapper/208:45:302
1809899665,53cyclictest0-21swapper/106:45:141
18100996530,26cyclictest2795-21aten_r1power_en06:30:273
18100996526,26cyclictest6151-21irqstats06:35:373
18100996526,26cyclictest6151-21irqstats06:35:373
1809999654,52cyclictest0-21swapper/210:40:412
18094996530,29cyclictest20858-21head06:00:300
18094996527,11cyclictest1227-21runrttasks06:10:340
14422657,12sleep20-21swapper/210:55:292
18100996420,37cyclictest28914-21latency06:15:393
1809999644,52cyclictest0-21swapper/210:20:222
1809999644,52cyclictest0-21swapper/208:25:332
1809999644,51cyclictest0-21swapper/211:00:192
1809999644,51cyclictest0-21swapper/210:54:112
18100996329,27cyclictest18106-21grep05:55:163
18100996327,29cyclictest15378-21sort06:55:333
1809999634,51cyclictest0-21swapper/210:15:192
1809999634,49cyclictest24428-21kworker/2:008:50:432
18098996318,37cyclictest26232-21aten_r1power_en10:45:181
18098996318,37cyclictest26232-21aten_r1power_en10:45:181
193312623,12sleep20-21swapper/210:35:052
18100996244,12cyclictest7733-21munin-node06:40:283
1809999625,48cyclictest12-21rcu_preempt08:35:272
1809999624,51cyclictest0-21swapper/210:05:312
1809999624,51cyclictest0-21swapper/210:05:312
1809999624,50cyclictest0-21swapper/206:25:142
18100996122,33cyclictest0-21swapper/306:00:343
1809999614,50cyclictest0-21swapper/210:35:382
18098996141,13cyclictest0-21swapper/110:05:061
18098996140,14cyclictest0-21swapper/108:54:041
1809999605,44cyclictest14899-21diskstats08:00:292
1809999604,49cyclictest0-21swapper/210:14:002
18098996038,15cyclictest0-21swapper/108:10:121
18099995939,12cyclictest8982-21df08:40:252
18099995939,12cyclictest8982-21df08:40:252
1809999593,9cyclictest7150irq/45-ahci11:10:342
18098995936,15cyclictest0-21swapper/110:32:431
18098995935,16cyclictest0-21swapper/110:56:241
47862583,12sleep20-21swapper/209:22:082
219499580,7rtkit-daemon0-21swapper/107:36:022
219499580,4rtkit-daemon23589-21netstat09:50:342
1809999584,46cyclictest0-21swapper/207:56:092
1809999584,46cyclictest0-21swapper/207:56:092
1809999584,39cyclictest0-21swapper/209:55:362
1809999584,12cyclictest0-21swapper/208:34:032
1809999583,47cyclictest0-21swapper/208:20:402
1809899585,29cyclictest0-21swapper/106:30:411
18098995838,13cyclictest0-21swapper/109:05:241
18098995822,29cyclictest13583-21unixbench_multi08:45:441
1809999574,27cyclictest0-21swapper/209:35:422
18099995737,13cyclictest0-21swapper/209:30:272
1809999573,11cyclictest0-21swapper/208:05:352
18098995738,12cyclictest0-21swapper/110:10:311
18098995737,14cyclictest0-21swapper/108:21:551
18098995737,13cyclictest0-21swapper/111:23:011
1809999564,46cyclictest0-21swapper/211:08:172
1809999562,48cyclictest0-21swapper/206:25:192
1809899568,17cyclictest0-21swapper/109:20:081
18098995641,10cyclictest0-21swapper/110:35:181
1809899564,44cyclictest0-21swapper/108:30:461
18098995634,15cyclictest0-21swapper/111:18:331
1809899563,47cyclictest0-21swapper/108:03:021
18098995617,27cyclictest0-21swapper/108:15:111
1809999554,45cyclictest0-21swapper/211:17:192
1809999554,45cyclictest0-21swapper/210:04:452
1809899555,43cyclictest0-21swapper/110:50:241
1809899555,27cyclictest0-21swapper/107:30:261
18098995538,11cyclictest0-21swapper/110:05:271
18098995538,11cyclictest0-21swapper/110:05:271
18098995536,13cyclictest0-21swapper/109:35:271
18098995535,14cyclictest0-21swapper/109:49:101
18098995535,14cyclictest0-21swapper/108:57:311
18098995534,14cyclictest0-21swapper/107:05:281
1809899553,45cyclictest0-21swapper/111:00:381
18098995523,9cyclictest25911-21idleruntime-cro10:45:041
297782542,9sleep20-21swapper/206:17:202
1809999544,29cyclictest0-21swapper/207:05:452
1809999544,21cyclictest0-21swapper/209:12:362
1809999543,36cyclictest0-21swapper/206:35:432
1809999543,36cyclictest0-21swapper/206:35:432
18099995420,20cyclictest25856-21cstates06:10:322
18098995435,12cyclictest0-21swapper/109:28:341
18098995435,12cyclictest0-21swapper/109:28:341
18098995434,13cyclictest0-21swapper/107:50:081
18098995423,14cyclictest0-21swapper/107:40:441
18098995421,14cyclictest0-21swapper/109:32:561
226612532,43sleep10-21swapper/106:02:521
198942533,9sleep20-21swapper/211:24:572
1809999535,22cyclictest0-21swapper/208:11:392
1809999534,29cyclictest0-21swapper/207:24:012
1809999534,28cyclictest0-21swapper/209:10:092
1809999534,28cyclictest0-21swapper/206:30:292
1809999534,23cyclictest18481-21ssh08:55:212
18099995321,25cyclictest0-21swapper/209:41:492
1809999532,10cyclictest0-21swapper/209:00:412
18098995326,7cyclictest7279-21latency_hist06:40:151
18098995326,7cyclictest7279-21latency_hist06:40:151
1809999525,28cyclictest0-21swapper/207:19:392
1809999525,27cyclictest0-21swapper/207:25:402
1809999524,28cyclictest0-21swapper/210:49:062
1809999524,28cyclictest0-21swapper/210:49:062
1809999524,28cyclictest0-21swapper/209:15:292
1809999524,28cyclictest0-21swapper/207:10:272
1809999524,28cyclictest0-21swapper/207:00:292
1809999524,28cyclictest0-21swapper/206:40:362
1809999524,27cyclictest0-21swapper/208:15:412
1809999524,12cyclictest0-21swapper/206:03:492
1809899524,30cyclictest0-21swapper/107:10:371
1809899524,13cyclictest0-21swapper/110:20:401
18098995237,10cyclictest0-21swapper/110:28:221
18098995237,10cyclictest0-21swapper/109:20:491
18098995225,12cyclictest0-21swapper/108:39:121
1809999514,39cyclictest0-21swapper/206:55:252
1809999514,27cyclictest0-21swapper/206:50:302
1809999513,28cyclictest0-21swapper/209:45:332
1809899515,40cyclictest0-21swapper/109:10:301
1809899514,41cyclictest0-21swapper/108:40:411
1809899514,41cyclictest0-21swapper/108:40:411
1809899514,40cyclictest0-21swapper/107:00:451
18098995135,11cyclictest0-21swapper/111:11:211
18098995133,12cyclictest0-21swapper/110:16:401
176582512,9sleep10-21swapper/109:41:021
203152502,42sleep10-21swapper/105:58:241
203152502,42sleep10-21swapper/105:58:241
1809999504,26cyclictest0-21swapper/207:34:372
1809999503,27cyclictest0-21swapper/207:41:012
18099995020,12cyclictest0-21swapper/205:55:392
18099995020,12cyclictest0-21swapper/205:55:392
18099995018,13cyclictest0-21swapper/206:05:342
1809899504,28cyclictest0-21swapper/107:15:481
1809899504,27cyclictest0-21swapper/106:25:351
18098995029,14cyclictest0-21swapper/107:50:391
18098995025,12cyclictest0-21swapper/111:05:551
302302492,39sleep10-21swapper/106:20:171
286812492,40sleep10-21swapper/107:24:071
1809899494,40cyclictest0-21swapper/109:50:221
1809899494,28cyclictest0-21swapper/108:25:561
1809899494,28cyclictest0-21swapper/106:55:351
1809899494,27cyclictest0-21swapper/107:28:541
18098994934,10cyclictest0-21swapper/105:55:161
18098994933,10cyclictest14014-21sed06:50:471
18098994920,13cyclictest0-21swapper/107:57:421
18098994920,13cyclictest0-21swapper/107:57:421
1809999484,28cyclictest0-21swapper/207:50:302
1809999483,38cyclictest11568-21grep06:45:472
18099994818,12cyclictest0-21swapper/207:45:462
1809899484,38cyclictest0-21swapper/109:56:491
1809899484,27cyclictest0-21swapper/106:10:341
18098994827,14cyclictest0-21swapper/106:15:371
119442482,39sleep10-21swapper/106:48:431
1809899474,38cyclictest0-21swapper/106:05:371
180012454,6sleep20-21swapper/205:54:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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