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2026-08-24 - 03:06

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 Mon Aug 24, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2194991140,6rtkit-daemon0-21swapper/322:54:431
32684991046,19cyclictest0-21swapper/120:53:071
3269021020,5sleep3361ktimersoftd/317:48:133
3269021020,5sleep3361ktimersoftd/317:48:133
2194991020,5rtkit-daemon2193-21rtkit-daemon22:27:442
219499950,6rtkit-daemon0-21swapper/018:34:240
219499940,6rtkit-daemon0-21swapper/018:32:010
219499940,6rtkit-daemon0-21swapper/018:32:010
3268699924,53cyclictest0-21swapper/320:09:223
219499910,6rtkit-daemon2193-21rtkit-daemon19:48:060
3268699894,78cyclictest0-21swapper/320:14:423
3268699894,77cyclictest0-21swapper/321:48:143
3268699894,77cyclictest0-21swapper/321:20:593
3268699894,65cyclictest0-21swapper/320:28:333
3268699884,77cyclictest0-21swapper/322:41:133
3268699884,77cyclictest0-21swapper/322:41:133
3268699884,77cyclictest0-21swapper/321:59:493
3268699884,77cyclictest0-21swapper/321:59:493
3268699884,77cyclictest0-21swapper/319:53:363
3268699884,77cyclictest0-21swapper/319:53:363
3268699884,77cyclictest0-21swapper/318:08:403
3268699884,75cyclictest0-21swapper/319:18:103
3268699884,75cyclictest0-21swapper/319:18:103
3268699884,56cyclictest0-21swapper/323:13:163
3268699883,50cyclictest0-21swapper/321:15:483
3268699883,50cyclictest0-21swapper/321:15:483
3268699875,65cyclictest0-21swapper/322:11:223
3268699874,76cyclictest0-21swapper/321:08:193
32686998713,66cyclictest0-21swapper/321:43:363
3268699864,76cyclictest0-21swapper/318:23:333
3268699864,75cyclictest0-21swapper/322:31:373
3268699864,61cyclictest0-21swapper/322:52:103
3268699864,47cyclictest0-21swapper/322:58:493
3268699863,75cyclictest0-21swapper/322:45:593
219499860,9rtkit-daemon0-21swapper/322:53:283
3268699854,74cyclictest0-21swapper/321:53:343
3268699854,74cyclictest0-21swapper/320:27:383
3268699854,74cyclictest0-21swapper/320:05:443
3268699854,73cyclictest0-21swapper/319:48:573
3268699853,75cyclictest0-21swapper/323:04:553
3268699844,59cyclictest0-21swapper/321:33:303
3268699844,49cyclictest0-21swapper/321:03:343
3268699844,48cyclictest0-21swapper/319:18:213
3268699839,67cyclictest1547-21nscd19:43:083
3268699839,51cyclictest0-21swapper/320:33:383
3268699839,51cyclictest0-21swapper/320:33:383
3268699834,72cyclictest0-21swapper/321:03:053
3268699833,73cyclictest0-21swapper/322:21:573
32686998310,51cyclictest0-21swapper/319:58:363
3268699824,70cyclictest0-21swapper/318:03:473
3268699824,61cyclictest0-21swapper/322:06:033
3268699824,56cyclictest0-21swapper/321:33:063
219499820,23rtkit-daemon0-21swapper/118:43:380
3268699819,57cyclictest0-21swapper/320:52:473
3268699814,71cyclictest0-21swapper/318:38:293
3268699814,70cyclictest0-21swapper/320:55:333
3268699814,50cyclictest0-21swapper/322:23:143
3268699814,46cyclictest0-21swapper/318:45:003
3268699813,69cyclictest0-21swapper/320:47:013
32686998113,45cyclictest25930-21ntp_states22:13:313
3268699805,58cyclictest0-21swapper/320:19:223
3268699804,69cyclictest14034-21cpuspeed_turbos19:23:243
3268699804,69cyclictest0-21swapper/323:08:303
3268699804,68cyclictest0-21swapper/319:03:223
3268699804,48cyclictest0-21swapper/317:58:423
3268699804,10cyclictest14941-21munin-node18:18:433
3268699803,69cyclictest0-21swapper/319:43:233
32686998011,46cyclictest0-21swapper/321:23:323
3268699795,56cyclictest0-21swapper/321:39:333
3268699794,61cyclictest0-21swapper/322:33:273
3268699794,61cyclictest0-21swapper/322:33:273
3268699794,49cyclictest0-21swapper/317:53:243
32686997814,42cyclictest16094-21munin-node19:28:253
32685997824,44cyclictest9110-21idleruntime21:48:242
3268699774,66cyclictest0-21swapper/319:08:233
3268699773,60cyclictest20291-21diskstats18:28:283
3268699773,60cyclictest20291-21diskstats18:28:283
3268699773,53cyclictest0-21swapper/320:38:563
3268699773,10cyclictest22782-21fschecks_count18:33:313
32686997718,41cyclictest0-21swapper/319:33:403
3268699754,58cyclictest0-21swapper/318:53:443
219499750,3rtkit-daemon0-21swapper/021:17:100
219499750,3rtkit-daemon0-21swapper/021:17:100
42462742,64sleep20-21swapper/221:41:462
3268699743,49cyclictest29845-21df_inode18:48:263
32686997235,32cyclictest3470-21unixbench_multi18:58:433
3268699714,46cyclictest0-21swapper/318:15:083
3268699694,57cyclictest1169-21fschecks_time17:48:303
219499690,8rtkit-daemon0-21swapper/322:29:522
219499690,4rtkit-daemon2193-21rtkit-daemon20:59:330
32685996733,12cyclictest26469-21ssh20:38:072
32685996733,12cyclictest26469-21ssh20:38:072
32685996511,10cyclictest107550irq/46-eth022:48:012
219499650,6rtkit-daemon2193-21rtkit-daemon20:16:350
219499650,5rtkit-daemon2193-21rtkit-daemon21:06:180
219499650,4rtkit-daemon2193-21rtkit-daemon20:49:410
219499650,4rtkit-daemon2193-21rtkit-daemon20:04:420
219499650,2rtkit-daemon0-21swapper/020:02:350
32685996444,13cyclictest0-21swapper/221:58:182
32685996444,13cyclictest0-21swapper/221:58:182
32680996412,40cyclictest0-21swapper/019:30:050
219499640,7rtkit-daemon0-21swapper/020:28:420
219499640,5rtkit-daemon2193-21rtkit-daemon20:27:270
219499640,4rtkit-daemon2193-21rtkit-daemon23:10:350
71572634,52sleep00-21swapper/020:57:500
32685996314,9cyclictest26984-21kworker/2:119:23:212
3268099635,43cyclictest0-21swapper/019:40:210
219499630,8rtkit-daemon0-21swapper/023:03:200
219499630,5rtkit-daemon2193-21rtkit-daemon22:55:130
219499630,4rtkit-daemon0-21swapper/020:40:490
32680996230,12cyclictest22860-21grep22:58:220
219499620,7rtkit-daemon0-21swapper/022:18:220
219499620,7rtkit-daemon0-21swapper/021:26:240
219499620,2rtkit-daemon0-21swapper/021:08:400
219499620,10rtkit-daemon0-21swapper/021:48:160
219499620,10rtkit-daemon0-21swapper/021:29:090
219499620,10rtkit-daemon0-21swapper/020:33:490
219499620,10rtkit-daemon0-21swapper/020:33:490
4412610,3sleep032674-21cyclictest17:48:220
32685996130,24cyclictest0-21swapper/220:53:162
3268099614,13cyclictest0-21swapper/022:23:280
219499610,9rtkit-daemon0-21swapper/022:09:150
219499610,9rtkit-daemon0-21swapper/022:00:380
219499610,9rtkit-daemon0-21swapper/022:00:380
219499610,9rtkit-daemon0-21swapper/021:53:080
219499610,9rtkit-daemon0-21swapper/021:44:160
219499610,7rtkit-daemon0-21swapper/322:49:512
219499610,7rtkit-daemon0-21swapper/020:22:490
219499610,7rtkit-daemon0-21swapper/020:10:120
219499610,6rtkit-daemon0-21swapper/018:36:381
219499610,3rtkit-daemon0-21swapper/023:14:130
219499610,2rtkit-daemon0-21swapper/022:05:300
219499610,10rtkit-daemon0-21swapper/022:14:300
219499610,10rtkit-daemon0-21swapper/021:38:390
219499610,10rtkit-daemon0-21swapper/020:47:260
219499600,6rtkit-daemon0-21swapper/021:33:540
219499600,6rtkit-daemon0-21swapper/018:43:081
219499600,2rtkit-daemon0-21swapper/021:18:100
219499600,2rtkit-daemon0-21swapper/019:53:500
219499600,2rtkit-daemon0-21swapper/019:53:500
3268599595,36cyclictest0-21swapper/221:03:212
32685995913,28cyclictest0-21swapper/220:53:002
219499590,6rtkit-daemon0-21swapper/017:49:251
214782593,12sleep20-21swapper/222:08:192
51192583,12sleep20-21swapper/217:57:452
3268599589,24cyclictest0-21swapper/221:08:382
219499580,6rtkit-daemon0-21swapper/019:50:431
219499580,6rtkit-daemon0-21swapper/018:43:531
219499580,6rtkit-daemon0-21swapper/018:29:011
219499580,6rtkit-daemon0-21swapper/018:29:011
16492584,46sleep00-21swapper/018:58:210
77662573,12sleep20-21swapper/220:58:202
3268599574,45cyclictest0-21swapper/220:46:192
3268599574,36cyclictest0-21swapper/220:20:072
3268599574,25cyclictest0-21swapper/222:18:332
32685995733,15cyclictest0-21swapper/220:25:562
3268599573,46cyclictest0-21swapper/222:13:152
3268499575,42cyclictest0-21swapper/120:33:191
3268499575,42cyclictest0-21swapper/120:33:191
3268099575,15cyclictest0-21swapper/019:52:060
3268099574,23cyclictest0-21swapper/018:48:210
32680995738,12cyclictest7100-21unixbench_multi17:58:460
32680995712,11cyclictest107550irq/46-eth022:48:160
198612572,7sleep119865-21ssh21:16:011
198612572,7sleep119865-21ssh21:16:011
3268599565,37cyclictest0-21swapper/222:03:442
3268599564,43cyclictest0-21swapper/222:33:292
3268599564,43cyclictest0-21swapper/222:33:292
32685995636,11cyclictest32466-21grep23:13:192
32684995622,9cyclictest25325-21fschecks_time22:13:221
3268599554,38cyclictest0-21swapper/223:04:462
3268599554,27cyclictest0-21swapper/219:18:412
32685995516,25cyclictest0-21swapper/222:54:112
3268499556,31cyclictest25419-21diskmemload20:05:331
3268499555,27cyclictest0-21swapper/120:43:391
32684995538,10cyclictest17640-21gltestperf20:23:271
32684995522,27cyclictest1227-21runrttasks22:05:121
3268099553,37cyclictest0-21swapper/018:18:180
242442553,10sleep20-21swapper/218:38:122
64922543,45sleep00-21swapper/022:33:250
64922543,45sleep00-21swapper/022:33:250
3268599548,27cyclictest0-21swapper/219:55:192
3268599548,27cyclictest0-21swapper/219:55:192
3268599545,13cyclictest0-21swapper/223:08:132
3268599544,29cyclictest0-21swapper/220:13:382
32685995434,13cyclictest0-21swapper/221:44:352
3268599543,41cyclictest0-21swapper/218:30:092
3268599543,41cyclictest0-21swapper/218:30:092
32685995420,27cyclictest17698-21cstates18:23:262
3268599542,36cyclictest0-21swapper/221:16:142
3268599542,36cyclictest0-21swapper/221:16:142
32685995417,23cyclictest0-21swapper/221:55:482
3268099544,33cyclictest0-21swapper/017:48:140
3268099544,32cyclictest0-21swapper/019:33:410
32680995420,13cyclictest0-21swapper/019:18:250
122342543,10sleep00-21swapper/018:12:100
3268599535,29cyclictest0-21swapper/218:08:442
32685995333,12cyclictest3403-21munin-node20:03:292
32685995333,12cyclictest0-21swapper/220:29:102
32685995329,15cyclictest0-21swapper/219:08:382
32685995312,25cyclictest0-21swapper/222:39:512
32685995312,25cyclictest0-21swapper/222:39:512
3268499534,34cyclictest0-21swapper/121:10:541
3268499534,25cyclictest0-21swapper/123:01:431
3268099534,32cyclictest0-21swapper/022:28:350
3268099534,25cyclictest12675-21aten2.4-expect18:13:250
32680995321,10cyclictest10133-21ssh22:38:320
32680995321,10cyclictest10133-21ssh22:38:320
146302533,10sleep00-21swapper/022:46:110
3268599525,29cyclictest0-21swapper/221:36:452
3268599525,29cyclictest0-21swapper/218:53:362
3268599525,28cyclictest0-21swapper/219:04:082
3268599525,27cyclictest0-21swapper/220:11:582
3268599524,22cyclictest27219-21ssh19:48:402
32685995235,10cyclictest12918-21tr18:13:272
32685995232,13cyclictest0-21swapper/219:58:282
32685995232,12cyclictest0-21swapper/219:38:302
32685995228,17cyclictest0-21swapper/221:18:322
32685995220,13cyclictest0-21swapper/222:58:172
32685995219,13cyclictest0-21swapper/221:23:342
32685995218,27cyclictest27545-21cpuspeed_turbos21:28:162
3268499527,30cyclictest0-21swapper/122:20:321
3268499525,29cyclictest0-21swapper/120:08:261
3268499524,30cyclictest0-21swapper/123:10:551
32684995221,25cyclictest24110-21rm22:12:141
32684995218,20cyclictest0-21swapper/120:13:231
219499520,4rtkit-daemon2193-21rtkit-daemon19:13:522
219499520,4rtkit-daemon2193-21rtkit-daemon19:13:522
219499520,4rtkit-daemon2193-21rtkit-daemon17:52:182
192192523,42sleep00-21swapper/018:24:560
3268599514,28cyclictest0-21swapper/219:28:332
3268599513,41cyclictest0-21swapper/220:39:172
32685995120,14cyclictest0-21swapper/217:58:242
3268499514,34cyclictest0-21swapper/119:59:181
3268499514,31cyclictest0-21swapper/121:04:451
3268499514,30cyclictest0-21swapper/120:20:031
3268499514,29cyclictest0-21swapper/121:38:211
3268099515,28cyclictest0-21swapper/019:13:320
3268099515,28cyclictest0-21swapper/019:13:320
3268099515,27cyclictest0-21swapper/018:03:410
3268099514,29cyclictest0-21swapper/019:03:420
263832513,9sleep20-21swapper/218:39:452
134092513,10sleep10-21swapper/119:22:291
96682502,41sleep20-21swapper/218:04:502
3268599505,27cyclictest0-21swapper/218:51:252
3268499504,39cyclictest0-21swapper/121:23:341
3268499504,28cyclictest0-21swapper/118:53:361
32684995035,9cyclictest5823-21sh22:33:171
32684995035,9cyclictest5823-21sh22:33:171
32684995024,12cyclictest0-21swapper/121:59:431
32684995024,12cyclictest0-21swapper/121:59:431
32684995024,11cyclictest0-21swapper/120:58:361
32684995020,13cyclictest0-21swapper/119:53:281
32684995020,13cyclictest0-21swapper/119:53:281
3268099504,28cyclictest0-21swapper/018:53:230
3268099504,27cyclictest24826-21grep18:38:240
254122507,35sleep10-21swapper/119:48:091
97612493,40sleep10-21swapper/118:06:021
86222493,11sleep00-21swapper/019:12:160
3872493,40sleep10-21swapper/121:35:201
3268599495,37cyclictest0-21swapper/218:43:432
3268599494,27cyclictest0-21swapper/218:58:332
3268499494,38cyclictest0-21swapper/122:48:271
3268499494,27cyclictest0-21swapper/121:53:231
3268499494,23cyclictest0-21swapper/121:19:061
32684994934,9cyclictest1697-21cut20:48:251
3268499493,28cyclictest9083-21munin-node21:48:231
3268499493,21cyclictest19061-21unixbench_singl18:23:461
3268099494,27cyclictest0-21swapper/019:23:250
32680994918,13cyclictest0-21swapper/017:53:240
320902494,6sleep10-21swapper/117:43:421
320902494,6sleep10-21swapper/117:43:421
3268599484,28cyclictest0-21swapper/218:18:432
3268599484,24cyclictest25414-21crond19:48:082
3268499485,27cyclictest0-21swapper/120:28:361
3268499484,27cyclictest0-21swapper/122:43:561
3268499484,27cyclictest0-21swapper/121:28:291
3268499484,25cyclictest0-21swapper/122:41:131
3268499484,25cyclictest0-21swapper/122:41:131
32684994832,10cyclictest32732-21gltestperf23:13:211
3268499483,27cyclictest0-21swapper/118:13:131
32684994818,13cyclictest0-21swapper/120:38:181
276332483,39sleep10-21swapper/123:05:351
3268599476,24cyclictest0-21swapper/219:33:202
3268499475,26cyclictest0-21swapper/121:43:091
3268499474,36cyclictest0-21swapper/119:18:101
3268499474,36cyclictest0-21swapper/119:18:101
3268499474,25cyclictest0-21swapper/122:24:491
32684994717,12cyclictest0-21swapper/122:28:441
3268499464,26cyclictest0-21swapper/119:32:241
3268499464,26cyclictest0-21swapper/119:00:131
3268499463,26cyclictest0-21swapper/117:53:371
312512462,38sleep10-21swapper/118:50:571
228362462,10sleep10-21swapper/119:40:391
155502463,38sleep10-21swapper/119:24:181
74352452,10sleep10-21swapper/118:01:471
3268099458,21cyclictest0-21swapper/017:48:140
167692452,10sleep10-21swapper/118:19:041
3268499443,33cyclictest0-21swapper/119:08:221
3268499433,35cyclictest0-21swapper/119:36:281
3268499424,24cyclictest0-21swapper/118:13:391
3268499424,12cyclictest0-21swapper/119:05:151
323422424,31sleep20-21swapper/217:44:162
323422424,31sleep20-21swapper/217:44:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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