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2026-05-14 - 01:52

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
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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 Thu May 14, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
113889910937,12cyclictest0-21swapper/219:32:402
11381991075,50cyclictest0-21swapper/018:54:090
11381991066,49cyclictest0-21swapper/019:57:450
113889910534,12cyclictest0-21swapper/221:12:092
11381991055,47cyclictest22447-21gltestperf19:12:370
11381991026,46cyclictest2627-21unixbench_multi20:17:500
113889910036,13cyclictest0-21swapper/219:39:212
11381991005,52cyclictest27308-21grep20:07:360
1138699994,50cyclictest0-21swapper/121:34:401
1138199996,52cyclictest0-21swapper/020:33:240
1138199995,51cyclictest0-21swapper/018:51:190
11388999822,13cyclictest0-21swapper/221:47:232
11386999711,43cyclictest0-21swapper/119:02:341
1138899963,37cyclictest12910-21ssh18:57:532
1138899963,37cyclictest12910-21ssh18:57:532
1138199964,48cyclictest0-21swapper/019:29:040
1138899954,28cyclictest0-21swapper/219:20:372
1138899954,27cyclictest0-21swapper/221:55:052
1138899944,28cyclictest0-21swapper/217:37:372
1138899944,28cyclictest0-21swapper/217:37:372
1138899935,27cyclictest0-21swapper/220:14:192
1138899934,28cyclictest0-21swapper/220:02:512
11388999334,12cyclictest0-21swapper/219:27:212
1138199934,12cyclictest0-21swapper/019:17:290
1138899928,24cyclictest0-21swapper/220:52:502
1138899925,28cyclictest0-21swapper/220:32:492
1138899915,27cyclictest0-21swapper/220:57:362
1138899914,28cyclictest0-21swapper/221:12:372
1138899913,28cyclictest0-21swapper/219:57:402
1138899904,30cyclictest0-21swapper/219:02:292
11388999033,12cyclictest0-21swapper/219:55:112
1138699903,50cyclictest4126-21diskmemload19:12:311
20322890,6chrt0-21swapper/320:17:423
11388998924,21cyclictest1419-21runrttasks18:01:492
1138899883,27cyclictest0-21swapper/220:25:552
1138899883,27cyclictest0-21swapper/220:25:552
1138899874,29cyclictest0-21swapper/218:07:532
11388998732,7cyclictest4126-21diskmemload20:43:422
1138899873,37cyclictest0-21swapper/221:40:332
11388998716,14cyclictest0-21swapper/219:14:422
1138699874,49cyclictest0-21swapper/119:52:481
1138899865,28cyclictest0-21swapper/220:30:372
1138899865,26cyclictest0-21swapper/221:58:382
1138899864,29cyclictest0-21swapper/217:17:422
11388998634,10cyclictest0-21swapper/220:11:002
1138899855,30cyclictest0-21swapper/222:07:282
1138899854,33cyclictest0-21swapper/218:48:232
1138899845,27cyclictest0-21swapper/219:44:072
1138899834,28cyclictest0-21swapper/222:12:132
1138899834,27cyclictest0-21swapper/220:48:472
1138899834,27cyclictest0-21swapper/218:52:342
1138899825,26cyclictest0-21swapper/219:26:222
11388998117,15cyclictest0-21swapper/217:32:402
11388998114,15cyclictest0-21swapper/221:42:152
11388998114,15cyclictest0-21swapper/221:42:152
1138899804,28cyclictest0-21swapper/217:44:182
11388998018,13cyclictest0-21swapper/221:24:142
11388997931,10cyclictest0-21swapper/220:38:112
11388997818,13cyclictest0-21swapper/220:17:282
1138899764,27cyclictest0-21swapper/221:06:392
1138899764,27cyclictest0-21swapper/221:06:392
11388997631,9cyclictest0-21swapper/219:08:332
248599710,3rtkit-daemon0-21swapper/320:12:203
248599690,7rtkit-daemon0-21swapper/319:33:073
20052690,5sleep32009-21tail18:42:323
248599660,4rtkit-daemon2484-21rtkit-daemon21:15:403
248599660,11rtkit-daemon0-21swapper/318:55:233
248599650,9rtkit-daemon0-21swapper/317:36:493
248599650,3rtkit-daemon0-21swapper/321:26:023
11388996539,9cyclictest7347-21ssh22:02:262
11388996537,13cyclictest0-21swapper/217:52:472
248599640,8rtkit-daemon0-21swapper/321:43:173
248599640,8rtkit-daemon0-21swapper/321:43:173
248599640,8rtkit-daemon0-21swapper/317:21:043
248599640,7rtkit-daemon0-21swapper/319:31:293
248599640,3rtkit-daemon0-21swapper/319:18:073
248599640,11rtkit-daemon0-21swapper/319:26:523
248599640,11rtkit-daemon0-21swapper/319:04:003
248599640,11rtkit-daemon0-21swapper/318:23:393
248599640,11rtkit-daemon0-21swapper/317:58:033
248599640,11rtkit-daemon0-21swapper/317:02:053
248599640,10rtkit-daemon0-21swapper/320:52:113
248599640,10rtkit-daemon0-21swapper/317:51:413
248599640,10rtkit-daemon0-21swapper/317:24:043
1138199645,52cyclictest0-21swapper/019:45:270
1138199645,51cyclictest11635-21grep18:57:340
1138199645,51cyclictest11635-21grep18:57:340
248599630,9rtkit-daemon0-21swapper/321:56:163
248599630,9rtkit-daemon0-21swapper/321:30:253
248599630,9rtkit-daemon0-21swapper/320:11:053
248599630,9rtkit-daemon0-21swapper/319:51:143
248599630,9rtkit-daemon0-21swapper/319:42:213
248599630,9rtkit-daemon0-21swapper/319:13:303
248599630,9rtkit-daemon0-21swapper/318:08:403
248599630,9rtkit-daemon0-21swapper/318:03:403
248599630,9rtkit-daemon0-21swapper/317:44:333
248599630,8rtkit-daemon0-21swapper/319:59:583
248599630,8rtkit-daemon0-21swapper/317:30:123
248599630,7rtkit-daemon0-21swapper/322:09:383
248599630,12rtkit-daemon0-21swapper/320:33:423
248599630,12rtkit-daemon0-21swapper/318:28:023
248599630,11rtkit-daemon0-21swapper/321:47:463
248599630,11rtkit-daemon0-21swapper/321:37:243
248599630,11rtkit-daemon0-21swapper/320:39:273
248599630,11rtkit-daemon0-21swapper/319:38:223
248599630,11rtkit-daemon0-21swapper/318:58:233
248599630,11rtkit-daemon0-21swapper/318:58:233
248599630,11rtkit-daemon0-21swapper/318:17:553
248599630,11rtkit-daemon0-21swapper/317:38:493
248599630,11rtkit-daemon0-21swapper/317:38:493
248599630,11rtkit-daemon0-21swapper/317:13:273
248599630,11rtkit-daemon0-21swapper/317:03:353
248599630,10rtkit-daemon0-21swapper/321:33:403
248599630,10rtkit-daemon0-21swapper/321:18:033
248599630,10rtkit-daemon0-21swapper/321:10:183
248599630,10rtkit-daemon0-21swapper/320:58:333
248599630,10rtkit-daemon0-21swapper/320:06:133
248599630,10rtkit-daemon0-21swapper/318:38:093
248599630,10rtkit-daemon0-21swapper/318:13:023
248599630,10rtkit-daemon0-21swapper/317:53:563
248599630,10rtkit-daemon0-21swapper/317:11:273
11388996335,12cyclictest0-21swapper/218:04:222
1138199634,52cyclictest0-21swapper/020:37:330
11381996311,45cyclictest0-21swapper/021:59:180
304622624,50sleep00-21swapper/017:27:240
248599620,8rtkit-daemon0-21swapper/322:05:013
248599620,8rtkit-daemon0-21swapper/319:55:133
248599620,7rtkit-daemon0-21swapper/320:43:193
248599620,3rtkit-daemon0-21swapper/322:13:153
248599620,11rtkit-daemon0-21swapper/319:07:233
248599620,10rtkit-daemon0-21swapper/322:00:233
248599620,10rtkit-daemon0-21swapper/320:24:203
248599620,10rtkit-daemon0-21swapper/320:24:203
248599620,10rtkit-daemon0-21swapper/318:50:383
248599620,10rtkit-daemon0-21swapper/318:33:393
11388996215,31cyclictest0-21swapper/221:31:312
1138699623,10cyclictest0-21swapper/120:02:471
1138199625,51cyclictest0-21swapper/019:40:410
1138199625,50cyclictest0-21swapper/019:23:170
1138199624,51cyclictest0-21swapper/019:32:450
1138199623,47cyclictest0-21swapper/017:09:520
248599610,8rtkit-daemon0-21swapper/320:55:563
248599610,5rtkit-daemon0-21swapper/320:29:053
248599610,11rtkit-daemon0-21swapper/321:06:483
248599610,11rtkit-daemon0-21swapper/321:06:483
11388996135,12cyclictest0-21swapper/221:32:292
1138699614,50cyclictest14867-21rm20:37:321
1138199615,50cyclictest0-21swapper/021:19:200
1138199614,50cyclictest0-21swapper/021:07:320
1138199614,50cyclictest0-21swapper/018:22:340
1138199614,49cyclictest13805-21gltestperf19:47:360
176932607,9sleep00-21swapper/021:28:030
142822603,49sleep10-21swapper/119:01:371
142822603,49sleep10-21swapper/119:01:371
1138699604,50cyclictest16074-21hwlatdetect18:02:421
1138699603,50cyclictest0-21swapper/118:52:361
1138199605,48cyclictest1419-21runrttasks21:49:290
1138199604,50cyclictest0-21swapper/021:14:530
1138199603,49cyclictest27556-21wc17:17:550
1138199603,11cyclictest0-21swapper/019:07:540
1138199602,11cyclictest0-21swapper/020:31:580
30422594,9sleep00-21swapper/021:55:490
1898925916,36sleep119096-21timerandwakeup18:07:521
1138899596,40cyclictest0-21swapper/219:49:382
1138699596,47cyclictest0-21swapper/119:38:021
1138699594,48cyclictest4126-21diskmemload20:37:171
1138699593,48cyclictest0-21swapper/122:12:241
1138699593,12cyclictest0-21swapper/120:08:561
1138199594,49cyclictest0-21swapper/021:02:480
1138199594,49cyclictest0-21swapper/021:02:480
1138199594,49cyclictest0-21swapper/020:16:550
1138199594,47cyclictest15403-21ssh19:02:360
1138699583,9cyclictest560-21munin-node19:27:441
1138199585,47cyclictest0-21swapper/020:46:250
1138199585,46cyclictest0-21swapper/020:22:340
1138199585,46cyclictest0-21swapper/020:22:340
1138199584,48cyclictest0-21swapper/021:01:560
1138199583,11cyclictest0-21swapper/022:12:430
1138199583,11cyclictest0-21swapper/021:22:290
1138699574,46cyclictest0-21swapper/120:52:361
1138699573,48cyclictest4126-21diskmemload21:46:571
1138699573,48cyclictest4126-21diskmemload21:46:571
1138699573,48cyclictest20065-21taskset20:44:361
1138699573,48cyclictest0-21swapper/119:22:361
1138699573,47cyclictest0-21swapper/121:19:391
1138199576,44cyclictest10164-21latency_hist22:07:120
1138199573,49cyclictest0-21swapper/020:54:140
11381995712,38cyclictest0-21swapper/021:32:320
1138699563,47cyclictest1287-21snmpd19:59:401
1138699563,16cyclictest0-21swapper/121:28:181
1138699563,14cyclictest0-21swapper/119:44:291
1138699563,13cyclictest0-21swapper/121:58:281
1138699563,13cyclictest0-21swapper/121:48:441
1138699562,48cyclictest0-21swapper/120:47:491
1138699562,48cyclictest0-21swapper/120:29:231
1138699562,13cyclictest0-21swapper/120:12:521
1138199564,14cyclictest0-21swapper/020:02:510
1138199563,48cyclictest0-21swapper/019:56:030
1138199563,11cyclictest0-21swapper/021:41:190
248599550,7rtkit-daemon0-21swapper/316:48:362
248599550,6rtkit-daemon0-21swapper/317:04:282
1138699553,46cyclictest13697-21munin-node21:22:431
1138699553,13cyclictest0-21swapper/121:52:361
1138699553,12cyclictest0-21swapper/122:02:471
1138699553,12cyclictest0-21swapper/117:17:401
1138699553,12cyclictest0-21swapper/116:57:521
1138699552,46cyclictest1412-21cut20:17:341
1138699552,14cyclictest0-21swapper/120:26:071
1138699552,14cyclictest0-21swapper/120:26:071
1138199553,46cyclictest0-21swapper/022:11:160
308822543,44sleep00-21swapper/018:32:500
26092543,10sleep00-21swapper/018:42:380
236462543,43sleep00-21swapper/018:17:500
164632543,44sleep016552-21cpu16:57:370
11389995421,13cyclictest0-21swapper/316:52:253
11388995418,21cyclictest0-21swapper/217:22:412
1138699543,45cyclictest0-21swapper/119:09:241
1138699543,13cyclictest0-21swapper/122:07:421
1138699543,12cyclictest0-21swapper/120:57:301
1138199543,13cyclictest0-21swapper/020:47:500
1138199543,12cyclictest0-21swapper/017:30:380
1138899534,41cyclictest0-21swapper/218:27:372
11388995325,13cyclictest0-21swapper/221:17:302
11388995325,12cyclictest0-21swapper/217:27:422
1138699533,13cyclictest0-21swapper/121:05:231
1138699533,13cyclictest0-21swapper/121:05:231
1138699533,11cyclictest5898-21sed18:47:521
1138199533,44cyclictest0-21swapper/018:02:220
1138199533,13cyclictest0-21swapper/021:42:410
1138199533,13cyclictest0-21swapper/021:42:410
255512522,9sleep00-21swapper/017:15:380
1138999522,36cyclictest0-21swapper/316:57:253
1138999522,36cyclictest0-21swapper/316:57:253
1138899525,29cyclictest0-21swapper/218:32:552
1138699523,43cyclictest4126-21diskmemload21:12:381
1138699523,12cyclictest3586-21perl19:32:361
1138199523,42cyclictest2955-21latency_hist17:37:240
248599510,5rtkit-daemon2484-21rtkit-daemon16:52:512
248599510,5rtkit-daemon2484-21rtkit-daemon16:52:512
206092512,42sleep10-21swapper/117:03:261
1138999514,27cyclictest0-21swapper/316:47:253
1138699513,13cyclictest0-21swapper/121:07:241
1138699513,12cyclictest0-21swapper/121:39:421
11386995111,34cyclictest1419-21runrttasks19:21:281
1138199515,27cyclictest0-21swapper/017:44:050
1138899506,17cyclictest0-21swapper/218:17:202
1138899504,29cyclictest0-21swapper/217:47:452
1138899504,28cyclictest0-21swapper/218:42:312
1138899504,28cyclictest0-21swapper/218:37:542
1138899504,28cyclictest0-21swapper/217:07:422
11388995030,9cyclictest0-21swapper/218:17:322
11388995019,13cyclictest0-21swapper/216:57:482
1138699503,40cyclictest21090-21kworker/1:119:49:411
1138699503,10cyclictest0-21swapper/117:12:571
1138699502,42cyclictest0-21swapper/118:13:531
1138699502,11cyclictest0-21swapper/117:57:561
1138199503,13cyclictest0-21swapper/018:39:480
1138199503,12cyclictest0-21swapper/016:52:580
1138199503,12cyclictest0-21swapper/016:52:580
1138199502,42cyclictest0-21swapper/017:47:530
206332492,41sleep00-21swapper/017:03:450
13422492,41sleep10-21swapper/118:39:041
1138899494,28cyclictest0-21swapper/217:12:452
1138699493,13cyclictest0-21swapper/117:52:551
11381994932,11cyclictest27435-21grep18:27:340
1138199493,9cyclictest3938-21chrt17:37:430
1138199493,9cyclictest3938-21chrt17:37:430
1138199492,11cyclictest0-21swapper/016:49:330
1138899484,27cyclictest0-21swapper/218:24:232
1138699483,13cyclictest0-21swapper/117:42:331
1138699482,11cyclictest0-21swapper/117:36:511
1138199483,40cyclictest0-21swapper/018:10:370
1138199483,40cyclictest0-21swapper/018:02:420
1138199483,12cyclictest0-21swapper/017:52:420
217522472,39sleep00-21swapper/018:13:190
1138699473,39cyclictest0-21swapper/117:37:551
1138699473,39cyclictest0-21swapper/117:37:551
1138699473,27cyclictest0-21swapper/118:17:531
1138699463,38cyclictest0-21swapper/118:27:331
1138699463,26cyclictest0-21swapper/118:47:201
1138699463,25cyclictest0-21swapper/117:27:001
1138699462,39cyclictest0-21swapper/117:27:321
135032452,9sleep10-21swapper/116:49:111
1138699454,24cyclictest15013-21irqstats16:52:461
1138699454,24cyclictest15013-21irqstats16:52:461
1138699453,36cyclictest0-21swapper/117:47:371
1138699453,12cyclictest0-21swapper/118:26:421
11386994528,11cyclictest29796-21cpuspeed_turbos18:32:331
1138699452,37cyclictest0-21swapper/117:07:341
1138899433,13cyclictest0-21swapper/216:47:262
110552424,31sleep10-21swapper/116:43:361
112622394,30sleep00-21swapper/016:46:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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