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2026-03-28 - 19:16

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 Sat Mar 28, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
248599970,6rtkit-daemon0-21swapper/305:46:321
1756999420,12cyclictest0-21swapper/008:31:100
248599930,4rtkit-daemon2484-21rtkit-daemon09:31:231
175699934,23cyclictest18939-21cstates09:41:090
175699933,32cyclictest1419-21runrttasks08:06:090
1756999314,13cyclictest0-21swapper/009:06:040
175699927,22cyclictest0-21swapper/010:06:050
175699925,25cyclictest0-21swapper/010:26:050
175699925,25cyclictest0-21swapper/010:26:050
175699925,20cyclictest0-21swapper/007:50:060
1756999215,10cyclictest1296-21rm10:51:060
175699918,20cyclictest30744-21fschecks_time10:46:100
175699914,25cyclictest0-21swapper/008:30:520
175699914,24cyclictest0-21swapper/008:36:100
1756999114,69cyclictest22110-21crond07:20:590
248599900,5rtkit-daemon2484-21rtkit-daemon09:36:231
248599900,5rtkit-daemon2484-21rtkit-daemon06:56:211
175699904,30cyclictest26904-21diskmemload08:51:300
175699904,22cyclictest0-21swapper/010:38:570
175699904,12cyclictest0-21swapper/010:31:210
1756999025,12cyclictest0-21swapper/007:30:580
1756999019,9cyclictest26849-21ssh10:41:060
1756999019,13cyclictest0-21swapper/010:22:510
1756999015,10cyclictest12834-21ssh09:31:160
248599890,5rtkit-daemon2484-21rtkit-daemon10:56:121
248599890,5rtkit-daemon2484-21rtkit-daemon05:51:161
175699894,22cyclictest0-21swapper/007:41:260
1756998936,46cyclictest17928-21tr07:11:140
175699893,26cyclictest0-21swapper/009:01:120
1756998913,9cyclictest3521-21cpuspeed_turbos06:41:140
175699884,24cyclictest0-21swapper/009:00:560
175699884,24cyclictest0-21swapper/008:41:580
175699884,12cyclictest0-21swapper/009:11:200
1756998819,13cyclictest0-21swapper/008:25:290
1756998815,12cyclictest0-21swapper/007:36:110
1756998811,10cyclictest5280-21ssh10:56:120
175699874,33cyclictest0-21swapper/009:51:090
175699874,25cyclictest0-21swapper/009:56:000
175699874,25cyclictest0-21swapper/009:25:570
175699874,13cyclictest0-21swapper/010:15:320
175699874,13cyclictest0-21swapper/008:19:140
175699874,12cyclictest23565-21ssh08:11:190
175699874,12cyclictest0-21swapper/010:16:150
175699874,12cyclictest0-21swapper/007:56:050
175699874,12cyclictest0-21swapper/007:33:350
1756998725,10cyclictest15760-21ssh09:36:120
1756998718,12cyclictest0-21swapper/009:20:180
248599860,5rtkit-daemon2484-21rtkit-daemon10:55:201
175699864,24cyclictest0-21swapper/009:46:060
175699864,12cyclictest0-21swapper/008:47:410
175699863,23cyclictest7370-21ssh09:23:060
175699863,22cyclictest770-21tail06:36:120
175699863,12cyclictest0-21swapper/006:01:220
175699854,25cyclictest0-21swapper/006:17:220
175699854,24cyclictest0-21swapper/007:53:330
175699854,17cyclictest0-21swapper/008:01:280
1756998514,9cyclictest121850irq/46-eth010:01:100
248599840,6rtkit-daemon2484-21rtkit-daemon07:36:271
248599840,4rtkit-daemon2484-21rtkit-daemon08:38:551
175699844,12cyclictest0-21swapper/006:56:310
175699834,33cyclictest0-21swapper/006:06:270
175699834,28cyclictest0-21swapper/007:06:260
175699834,28cyclictest0-21swapper/006:21:250
175699834,28cyclictest0-21swapper/006:21:250
175699824,32cyclictest0-21swapper/006:46:190
175699824,29cyclictest5195-21tune2fs05:36:210
175699824,29cyclictest5195-21tune2fs05:36:210
175699824,26cyclictest0-21swapper/006:31:160
175699823,31cyclictest9760-21grep06:51:350
248599810,4rtkit-daemon2484-21rtkit-daemon08:10:111
175699814,24cyclictest0-21swapper/006:11:140
175699814,23cyclictest0-21swapper/007:01:240
248599800,7rtkit-daemon0-21swapper/208:02:412
248599800,4rtkit-daemon2484-21rtkit-daemon07:11:281
175699804,27cyclictest0-21swapper/006:26:310
248599790,4rtkit-daemon2484-21rtkit-daemon10:41:051
175699795,10cyclictest1419-21runrttasks05:36:040
175699794,12cyclictest0-21swapper/005:51:260
248599780,4rtkit-daemon2484-21rtkit-daemon07:22:430
248599770,4rtkit-daemon2484-21rtkit-daemon05:59:090
248599770,4rtkit-daemon2484-21rtkit-daemon05:49:160
175699774,23cyclictest0-21swapper/005:41:370
248599760,5rtkit-daemon0-21swapper/010:19:282
248599740,4rtkit-daemon2484-21rtkit-daemon09:30:231
248599720,5rtkit-daemon0-21swapper/205:41:392
248599670,6rtkit-daemon0-21swapper/208:04:343
248599670,5rtkit-daemon0-21swapper/205:38:393
248599670,5rtkit-daemon0-21swapper/205:38:393
248599670,5rtkit-daemon0-21swapper/205:31:253
248599660,6rtkit-daemon0-21swapper/205:41:093
248599660,5rtkit-daemon2484-21rtkit-daemon06:15:081
248599660,5rtkit-daemon0-21swapper/208:06:043
1759996623,37cyclictest13719-21grep10:21:072
248599650,5rtkit-daemon0-21swapper/308:06:112
248599640,5rtkit-daemon2484-21rtkit-daemon10:17:431
248599640,5rtkit-daemon0-21swapper/205:46:093
248599640,4rtkit-daemon2484-21rtkit-daemon06:06:161
175899644,24cyclictest0-21swapper/107:57:201
248599630,5rtkit-daemon2484-21rtkit-daemon08:52:321
248599630,5rtkit-daemon2484-21rtkit-daemon07:16:131
248599630,4rtkit-daemon2484-21rtkit-daemon07:51:271
105402633,53sleep30-21swapper/309:27:233
248599620,5rtkit-daemon2484-21rtkit-daemon10:37:051
92852613,13sleep30-21swapper/307:51:133
274372614,13sleep20-21swapper/209:52:372
248599610,8rtkit-daemon0-21swapper/010:26:061
248599610,8rtkit-daemon0-21swapper/010:26:061
248599610,4rtkit-daemon2484-21rtkit-daemon07:31:051
1760996115,38cyclictest2507-21gdm-simple-gree10:03:513
1759996125,29cyclictest0-21swapper/210:47:142
248599600,7rtkit-daemon0-21swapper/009:21:311
248599600,7rtkit-daemon0-21swapper/008:41:171
248599600,6rtkit-daemon0-21swapper/006:31:521
248599600,4rtkit-daemon2484-21rtkit-daemon08:22:331
248599590,6rtkit-daemon121850irq/46-eth010:22:211
248599590,5rtkit-daemon25307-21yum-updatesd-he08:15:031
248599590,4rtkit-daemon2484-21rtkit-daemon08:30:331
248599580,4rtkit-daemon2484-21rtkit-daemon10:08:211
248599580,4rtkit-daemon2484-21rtkit-daemon08:46:101
175899584,38cyclictest0-21swapper/109:00:081
248599570,7rtkit-daemon0-21swapper/008:18:181
248599570,7rtkit-daemon0-21swapper/006:16:151
248599570,5rtkit-daemon4733-21iostat08:31:181
248599570,4rtkit-daemon2484-21rtkit-daemon10:11:061
248599570,4rtkit-daemon2484-21rtkit-daemon09:54:441
248599570,4rtkit-daemon13149-21grep07:01:141
228282574,13sleep20-21swapper/206:11:362
176099573,46cyclictest0-21swapper/307:57:453
1760995729,21cyclictest30200-21ssh09:56:253
175999575,31cyclictest0-21swapper/210:01:102
175999574,27cyclictest13930-21switchtime07:56:282
1759995721,31cyclictest281ktimersoftd/208:16:492
159122573,12sleep30-21swapper/309:36:143
248599560,4rtkit-daemon30389-21taskset06:29:221
175999564,45cyclictest30442-21grep09:56:272
175999564,45cyclictest0-21swapper/210:36:112
175999564,36cyclictest0-21swapper/209:30:282
1759995624,14cyclictest0-21swapper/210:31:062
1758995638,11cyclictest674-21munin-node06:36:211
126072564,46sleep20-21swapper/208:42:432
120452563,47sleep212048-21ssh07:55:472
38112553,12sleep10-21swapper/109:17:251
248599550,7rtkit-daemon0-21swapper/009:59:221
248599550,3rtkit-daemon22863-21ssh09:46:151
1760995539,9cyclictest23226-21gltestperf07:21:193
175999555,30cyclictest0-21swapper/208:26:102
1759995518,30cyclictest1419-21runrttasks10:11:372
175899554,33cyclictest0-21swapper/106:51:351
71822544,42sleep30-21swapper/309:22:233
274332543,10sleep125966-21munin-node06:21:341
274332543,10sleep125966-21munin-node06:21:341
248599540,4rtkit-daemon2484-21rtkit-daemon07:42:271
1760995437,10cyclictest12835-21crond10:20:523
1759995421,27cyclictest281ktimersoftd/209:41:282
88872534,11sleep10-21swapper/105:44:221
3212532,9sleep30-21swapper/307:37:183
248599530,4rtkit-daemon2484-21rtkit-daemon10:46:051
248599530,4rtkit-daemon2484-21rtkit-daemon09:14:531
175999535,30cyclictest0-21swapper/210:26:082
175999535,30cyclictest0-21swapper/210:26:082
175999535,28cyclictest0-21swapper/207:11:272
1759995325,10cyclictest26962-21awk09:05:552
1759995324,13cyclictest0-21swapper/207:41:112
1759995321,14cyclictest0-21swapper/210:56:132
16632534,6sleep00-21swapper/005:30:230
53682522,10sleep30-21swapper/306:45:433
39542522,44sleep30-21swapper/310:55:113
325032523,6sleep332509-21ssh10:48:503
248599520,4rtkit-daemon2484-21rtkit-daemon10:33:351
248599520,4rtkit-daemon2484-21rtkit-daemon07:49:571
248599520,4rtkit-daemon2484-21rtkit-daemon07:23:431
248599520,4rtkit-daemon2484-21rtkit-daemon05:58:241
175999526,27cyclictest0-21swapper/208:11:082
175999525,29cyclictest0-21swapper/208:31:592
175999525,28cyclictest0-21swapper/209:36:242
175999525,27cyclictest0-21swapper/209:08:222
175999525,27cyclictest0-21swapper/208:48:152
175999525,27cyclictest0-21swapper/207:34:082
175999525,26cyclictest0-21swapper/209:23:402
175999525,24cyclictest20915-21df08:56:102
175999524,30cyclictest0-21swapper/209:16:182
175999524,29cyclictest0-21swapper/209:50:532
175999524,29cyclictest0-21swapper/206:36:282
1759995235,10cyclictest17991-21grep08:51:162
1759995220,12cyclictest0-21swapper/209:11:252
1759995220,11cyclictest26904-21diskmemload07:46:082
1759995211,24cyclictest0-21swapper/209:31:122
175899524,40cyclictest0-21swapper/105:39:231
175899524,40cyclictest0-21swapper/105:39:231
38262513,40sleep20-21swapper/206:41:192
248599510,5rtkit-daemon2484-21rtkit-daemon09:42:221
248599510,5rtkit-daemon2484-21rtkit-daemon07:10:131
248599510,4rtkit-daemon2484-21rtkit-daemon06:49:141
238182512,10sleep30-21swapper/309:46:423
176099514,39cyclictest0-21swapper/309:41:173
175999515,28cyclictest0-21swapper/206:51:252
175999515,27cyclictest0-21swapper/210:51:082
175999515,26cyclictest0-21swapper/205:58:532
175999514,28cyclictest0-21swapper/207:21:272
175999514,28cyclictest0-21swapper/205:51:342
175999514,27cyclictest0-21swapper/208:36:062
175999514,27cyclictest0-21swapper/206:46:252
175999514,24cyclictest0-21swapper/206:01:132
1759995121,14cyclictest0-21swapper/207:36:162
175899514,30cyclictest0-21swapper/109:06:191
74552504,8sleep30-21swapper/311:00:433
248599500,4rtkit-daemon2484-21rtkit-daemon09:04:461
195952502,9sleep30-21swapper/307:14:203
193582502,10sleep20-21swapper/206:06:162
184532503,9sleep10-21swapper/106:04:341
1760995034,10cyclictest2560-21gltestperf09:16:143
176099503,41cyclictest1419-21runrttasks08:31:593
176099503,41cyclictest0-21swapper/310:43:393
176099503,40cyclictest0-21swapper/309:08:443
1760995028,14cyclictest0-21swapper/308:26:173
1760995021,13cyclictest0-21swapper/310:11:203
175999508,23cyclictest0-21swapper/210:41:092
175999504,28cyclictest0-21swapper/207:01:142
175999504,27cyclictest0-21swapper/208:21:122
1759995019,13cyclictest0-21swapper/206:56:122
175899504,27cyclictest0-21swapper/108:03:421
171642502,9sleep20-21swapper/207:08:512
92452492,9sleep30-21swapper/308:37:443
176099494,38cyclictest0-21swapper/307:35:533
176099493,40cyclictest0-21swapper/307:49:353
176099493,39cyclictest0-21swapper/310:21:203
176099493,39cyclictest0-21swapper/309:12:313
1760994915,9cyclictest1945-21Xorg10:30:503
1760994915,9cyclictest1945-21Xorg10:30:503
175999494,26cyclictest0-21swapper/206:34:512
1759994929,11cyclictest1419-21runrttasks06:21:322
1759994929,11cyclictest1419-21runrttasks06:21:322
175999492,37cyclictest0-21swapper/207:16:072
1759994919,13cyclictest0-21swapper/210:06:122
175899494,27cyclictest0-21swapper/110:01:531
1758994920,12cyclictest0-21swapper/107:26:101
148122492,40sleep30-21swapper/307:04:213
284002482,10sleep30-21swapper/308:18:583
176099484,37cyclictest0-21swapper/308:14:573
176099484,11cyclictest0-21swapper/309:01:133
1760994827,7cyclictest19540-21ssh08:53:283
175999484,27cyclictest0-21swapper/206:16:352
175999483,27cyclictest25669-21runrttasks07:26:192
175899484,26cyclictest0-21swapper/106:41:161
175899484,26cyclictest0-21swapper/105:36:031
40922472,38sleep30-21swapper/310:06:173
304322472,10sleep30-21swapper/306:29:593
208292472,10sleep30-21swapper/306:09:273
176099476,12cyclictest0-21swapper/308:41:193
176099475,25cyclictest0-21swapper/310:34:163
176099474,8cyclictest20788-21ssh08:56:093
1760994733,9cyclictest24479-21tr10:36:183
176099472,11cyclictest0-21swapper/308:50:113
175999475,25cyclictest9378-21aten2.4-expect05:46:162
175999474,34cyclictest0-21swapper/205:36:302
175999474,34cyclictest0-21swapper/205:36:302
57872462,36sleep30-21swapper/306:46:113
199592462,9sleep30-21swapper/307:16:103
176099464,34cyclictest0-21swapper/306:31:173
176099464,10cyclictest0-21swapper/309:51:113
176099463,38cyclictest0-21swapper/307:26:113
1760994621,9cyclictest3376-21processes07:41:273
1759994615,7cyclictest281ktimersoftd/206:26:132
280512452,9sleep30-21swapper/306:25:033
280512452,9sleep30-21swapper/306:25:033
185322452,10sleep30-21swapper/306:05:363
176099455,33cyclictest0-21swapper/305:51:323
176099453,36cyclictest0-21swapper/306:36:133
176099453,35cyclictest0-21swapper/309:31:093
1759994524,14cyclictest0-21swapper/205:31:332
1760994428,9cyclictest30852-21timerandwakeup08:21:293
254222433,34sleep30-21swapper/306:17:053
176099434,31cyclictest0-21swapper/307:06:143
176099433,8cyclictest22606-21rt-features06:11:323
1760994225,10cyclictest8384-21tr06:51:163
124512422,9sleep30-21swapper/306:59:413
176099403,33cyclictest0-21swapper/305:56:253
1760993522,8cyclictest1737-21munin-run05:31:033
1758993414,14cyclictest0-21swapper/105:31:041
175999334,23cyclictest0-21swapper/205:31:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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