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2026-01-02 - 12:12

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 Fri Jan 02, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2485991230,6rtkit-daemon2484-21rtkit-daemon22:26:282
2485991040,5rtkit-daemon2484-21rtkit-daemon23:18:482
2485991030,5rtkit-daemon2484-21rtkit-daemon20:46:471
2485991030,5rtkit-daemon2484-21rtkit-daemon20:46:471
1810521020,5sleep018107-21sort21:06:360
302922960,7sleep11731899cyclictest19:16:421
1731999954,64cyclictest0-21swapper/223:41:472
1731999954,64cyclictest0-21swapper/223:41:472
17318999519,69cyclictest28666-21df_abs20:21:331
1731499955,28cyclictest0-21swapper/022:03:540
248599930,4rtkit-daemon2484-21rtkit-daemon20:01:411
1731499935,27cyclictest0-21swapper/019:06:320
1731999924,19cyclictest0-21swapper/218:51:382
1731499924,12cyclictest0-21swapper/020:11:440
1731899914,13cyclictest0-21swapper/122:16:281
1731899914,13cyclictest0-21swapper/122:16:281
1731499915,14cyclictest0-21swapper/022:16:340
1731499915,14cyclictest0-21swapper/022:16:340
1731499914,27cyclictest0-21swapper/019:31:440
1731499914,26cyclictest1959-21aten2.4-expect19:26:350
1731999903,23cyclictest0-21swapper/223:01:252
1731999903,23cyclictest0-21swapper/223:01:252
1731899904,14cyclictest0-21swapper/121:56:321
1731499905,13cyclictest0-21swapper/021:56:510
1731499904,23cyclictest0-21swapper/023:01:360
1731499904,23cyclictest0-21swapper/023:01:360
17314999019,15cyclictest0-21swapper/000:11:390
17314999010,15cyclictest0-21swapper/021:31:490
1731499894,36cyclictest8560-21cut20:46:370
1731499894,36cyclictest8560-21cut20:46:370
17314998925,13cyclictest1715-21yum-updatesd-he20:31:460
1731999884,68cyclictest0-21swapper/222:21:372
1731499885,29cyclictest0-21swapper/022:38:560
1731499885,28cyclictest0-21swapper/000:04:380
1731499884,13cyclictest0-21swapper/023:21:360
1731499884,12cyclictest0-21swapper/021:46:450
1731999874,23cyclictest0-21swapper/220:26:312
17319998715,12cyclictest0-21swapper/223:39:402
1731899874,13cyclictest0-21swapper/119:46:511
1731499875,29cyclictest0-21swapper/021:51:380
1731499874,29cyclictest0-21swapper/020:41:190
1731499874,27cyclictest0-21swapper/023:31:300
1731999864,23cyclictest0-21swapper/220:51:192
1731999863,25cyclictest10492-21switchtime00:11:432
1731999863,25cyclictest0-21swapper/219:21:542
1731999863,25cyclictest0-21swapper/219:21:542
1731999863,23cyclictest0-21swapper/223:11:352
17319998618,11cyclictest0-21swapper/219:46:322
1731899864,12cyclictest0-21swapper/121:06:361
1731899864,12cyclictest0-21swapper/120:07:151
1731899864,12cyclictest0-21swapper/119:56:541
1731899863,13cyclictest0-21swapper/121:41:371
1731899863,10cyclictest10789-21diskstats23:06:331
1731499867,28cyclictest0-21swapper/022:11:400
1731499864,34cyclictest18989-21runrttasks18:51:540
1731499864,30cyclictest0-21swapper/023:36:280
1731999854,65cyclictest0-21swapper/219:26:512
17319998531,47cyclictest19484-21cut22:16:362
17319998531,47cyclictest19484-21cut22:16:362
1731999853,25cyclictest0-21swapper/219:31:332
17319998513,13cyclictest0-21swapper/221:26:342
1731499855,28cyclictest0-21swapper/023:16:350
1731499854,30cyclictest0-21swapper/000:06:330
1731999844,71cyclictest0-21swapper/219:41:362
1731999844,28cyclictest0-21swapper/222:31:392
17319998420,47cyclictest0-21swapper/221:46:382
1731899844,13cyclictest0-21swapper/121:26:441
1731899844,11cyclictest0-21swapper/119:21:521
1731899844,11cyclictest0-21swapper/119:21:521
1731499845,38cyclictest0-21swapper/023:46:420
1731999834,29cyclictest0-21swapper/221:11:332
1731999834,26cyclictest0-21swapper/220:43:142
1731999834,25cyclictest0-21swapper/222:04:552
1731999833,23cyclictest0-21swapper/220:31:412
17319998317,14cyclictest0-21swapper/200:06:262
1731899835,13cyclictest0-21swapper/120:31:481
1731899835,11cyclictest0-21swapper/122:06:291
1731899834,14cyclictest0-21swapper/120:16:541
1731499835,29cyclictest0-21swapper/020:56:460
1731499834,28cyclictest0-21swapper/021:11:480
1731499833,17cyclictest0-21swapper/022:22:300
1731999824,71cyclictest0-21swapper/223:26:392
1731999824,70cyclictest0-21swapper/220:01:432
1731999824,28cyclictest0-21swapper/221:08:182
1731999824,24cyclictest0-21swapper/221:31:272
1731999824,22cyclictest0-21swapper/221:16:362
1731999823,27cyclictest0-21swapper/220:16:432
1731999823,24cyclictest0-21swapper/222:56:462
1731999823,24cyclictest0-21swapper/222:56:462
1731999823,24cyclictest0-21swapper/221:56:292
1731999823,23cyclictest23212-21yum-updatesd-he23:31:402
1731899824,13cyclictest0-21swapper/100:01:231
1731899824,11cyclictest0-21swapper/123:16:121
1731499824,29cyclictest0-21swapper/021:36:500
1731999814,71cyclictest0-21swapper/221:41:432
1731999814,26cyclictest0-21swapper/221:03:182
17319998124,50cyclictest0-21swapper/219:13:432
17319998123,51cyclictest1419-21runrttasks19:16:492
1731899814,13cyclictest0-21swapper/122:26:421
1731899814,13cyclictest0-21swapper/122:01:381
1731899814,13cyclictest0-21swapper/119:41:331
1731899814,12cyclictest0-21swapper/123:41:451
1731899814,12cyclictest0-21swapper/123:41:451
1731899814,12cyclictest0-21swapper/123:21:231
1731899814,12cyclictest0-21swapper/121:36:491
1731499815,27cyclictest0-21swapper/020:06:550
1731999804,69cyclictest0-21swapper/221:51:442
1731999803,62cyclictest0-21swapper/219:01:212
1731999803,26cyclictest0-21swapper/219:56:322
17319998015,13cyclictest0-21swapper/200:16:332
17319998010,22cyclictest0-21swapper/222:36:342
1731899804,13cyclictest0-21swapper/123:48:301
1731899804,13cyclictest0-21swapper/122:56:341
1731899804,13cyclictest0-21swapper/122:56:341
1731899803,59cyclictest7921-21open_inodes00:06:381
17314998026,13cyclictest0-21swapper/022:56:470
17314998026,13cyclictest0-21swapper/022:56:470
1731999794,14cyclictest0-21swapper/220:13:092
1731999793,70cyclictest0-21swapper/223:06:402
1731899794,9cyclictest22261-21aten2.4-expect21:16:301
1731899794,10cyclictest25334-21munin-node19:06:391
1731899793,68cyclictest0-21swapper/121:11:421
1731899793,12cyclictest0-21swapper/119:38:051
17318997916,45cyclictest29394-21munin-node21:31:401
281762780,3sleep041ktimersoftd/021:26:430
1731999784,26cyclictest0-21swapper/223:48:462
1731999784,26cyclictest0-21swapper/221:38:232
1731999784,25cyclictest0-21swapper/220:46:292
1731999784,25cyclictest0-21swapper/220:46:292
1731999784,24cyclictest0-21swapper/200:01:232
1731999783,25cyclictest0-21swapper/222:54:362
1731999783,23cyclictest0-21swapper/220:21:342
1731899788,12cyclictest0-21swapper/123:36:111
1731899784,12cyclictest0-21swapper/100:16:311
1731899783,13cyclictest0-21swapper/120:51:191
1731899783,12cyclictest0-21swapper/100:16:101
17318997823,39cyclictest22079-21munin-run19:01:211
1731999774,65cyclictest0-21swapper/219:02:572
1731999774,13cyclictest0-21swapper/222:06:322
1731999773,57cyclictest0-21swapper/223:51:232
17319997722,8cyclictest4198-21wc20:36:422
1731899773,66cyclictest5359-21yum-updatesd-he19:31:451
17318997722,48cyclictest31410-21gltestperf22:41:331
17318997717,46cyclictest1287-21snmpd19:53:061
17318997716,54cyclictest6356-21gltestperf20:41:411
1731999763,22cyclictest0-21swapper/220:57:202
17319997619,9cyclictest6817-21head19:36:332
1731899764,13cyclictest0-21swapper/120:11:221
1731899763,57cyclictest0-21swapper/121:03:471
1731899763,12cyclictest0-21swapper/118:51:451
1731999753,25cyclictest0-21swapper/222:46:422
1731999753,25cyclictest0-21swapper/222:14:262
17319997515,8cyclictest0-21swapper/219:55:262
1731899755,13cyclictest0-21swapper/122:56:131
1731899754,13cyclictest0-21swapper/122:21:301
1731899754,12cyclictest0-21swapper/121:01:181
17318997527,42cyclictest26319-21unixbench_singl23:36:481
17318997526,42cyclictest32606-21cut23:51:301
1731999747,10cyclictest0-21swapper/219:06:282
1731999744,12cyclictest0-21swapper/223:56:452
1731899745,13cyclictest0-21swapper/121:51:461
1731899744,13cyclictest0-21swapper/122:36:421
1731899744,13cyclictest0-21swapper/118:51:231
1731899744,12cyclictest1419-21runrttasks19:29:371
1731899743,9cyclictest8154-21tr23:01:271
1731899743,9cyclictest8154-21tr23:01:271
1731899743,10cyclictest2638-21sshd22:48:571
17318997418,50cyclictest26837-21latency22:31:391
17318997413,39cyclictest0-21swapper/120:28:121
1731499744,15cyclictest22990-21cut21:16:370
1731899734,12cyclictest0-21swapper/121:46:531
17318997319,47cyclictest3261-21aten_r1power_vo20:36:311
17319997217,9cyclictest32271-21grep22:41:472
1731899723,8cyclictest17139-21turbostat23:21:111
1731899723,13cyclictest0-21swapper/119:03:151
1731999717,20cyclictest0-21swapper/218:51:232
1731999715,15cyclictest0-21swapper/221:26:092
17319997116,7cyclictest0-21swapper/223:21:322
1731899714,10cyclictest3106-21grep23:56:381
17318997118,47cyclictest19822-21aten_r1power_en23:26:241
17318997114,50cyclictest24976-21cpuspeed_turbos21:21:321
17318997111,53cyclictest27813-21fschecks_time19:11:391
1731999704,11cyclictest0-21swapper/220:08:082
17318997011,52cyclictest0-21swapper/122:11:301
17320996545,13cyclictest25550-21gltestperf19:06:413
208342584,47sleep00-21swapper/020:06:190
1732099574,37cyclictest0-21swapper/320:58:173
189822563,45sleep30-21swapper/318:51:543
17320995638,11cyclictest30316-21gltestperf19:16:423
17320995636,11cyclictest17029-21head22:11:353
1731499564,10cyclictest1035-21cat19:21:540
1731499564,10cyclictest1035-21cat19:21:540
17314995620,16cyclictest0-21swapper/020:26:490
182382553,45sleep00-21swapper/019:58:410
1731499555,30cyclictest0-21swapper/022:26:410
17314995521,15cyclictest0-21swapper/020:21:470
156852553,13sleep30-21swapper/322:07:253
13272553,45sleep31340-21gltestperf22:46:353
13082553,13sleep30-21swapper/319:22:503
13082553,13sleep30-21swapper/319:22:503
291902543,44sleep00-21swapper/019:15:530
206712543,10sleep30-21swapper/320:04:123
1732099545,30cyclictest0-21swapper/320:46:183
17320995436,11cyclictest27276-21tr23:41:253
17320995436,11cyclictest27276-21tr23:41:253
1732099543,25cyclictest0-21swapper/300:01:233
17314995421,14cyclictest0-21swapper/021:21:310
17314995419,14cyclictest0-21swapper/022:42:360
244032534,42sleep00-21swapper/019:05:420
1732099534,30cyclictest0-21swapper/322:31:443
17320995321,8cyclictest2669-21gltestperf23:56:303
1731499535,29cyclictest0-21swapper/022:31:300
1731499535,29cyclictest0-21swapper/020:51:380
1731499534,29cyclictest0-21swapper/023:16:130
1731499534,10cyclictest0-21swapper/022:46:370
17314995337,10cyclictest1038-21grep23:51:450
110702535,41sleep00-21swapper/019:43:420
234632523,10sleep30-21swapper/320:11:343
219752523,43sleep00-21swapper/019:00:100
1732099525,29cyclictest0-21swapper/323:06:433
1732099525,28cyclictest0-21swapper/319:26:493
17320995222,12cyclictest0-21swapper/321:36:363
1732099522,37cyclictest0-21swapper/323:36:353
1731499525,27cyclictest0-21swapper/021:41:480
17314995233,11cyclictest15537-21grep22:06:490
17314995223,24cyclictest0-21swapper/020:44:220
86832514,42sleep00-21swapper/019:38:550
278962513,11sleep30-21swapper/320:20:083
218752513,13sleep30-21swapper/318:58:523
210782512,42sleep30-21swapper/321:11:433
205212512,12sleep30-21swapper/322:18:103
205212512,12sleep30-21swapper/322:18:103
1732099515,28cyclictest0-21swapper/300:16:233
1732099514,28cyclictest0-21swapper/323:21:303
1732099514,28cyclictest0-21swapper/319:56:413
17320995132,11cyclictest32098-21cpuspeed_turbos23:51:253
17320995121,13cyclictest0-21swapper/322:21:323
17320995120,13cyclictest0-21swapper/320:06:423
17320995113,19cyclictest10506-21sed00:11:433
1731499514,27cyclictest0-21swapper/021:03:180
17314995122,12cyclictest0-21swapper/000:16:460
133452513,40sleep00-21swapper/019:47:170
1732099505,27cyclictest0-21swapper/319:36:423
1732099504,28cyclictest0-21swapper/323:46:353
1732099504,28cyclictest0-21swapper/323:16:373
1732099504,28cyclictest0-21swapper/323:11:363
1732099504,28cyclictest0-21swapper/322:41:463
1732099504,28cyclictest0-21swapper/321:31:453
1732099504,28cyclictest0-21swapper/321:01:473
1732099504,28cyclictest0-21swapper/320:46:323
1732099504,28cyclictest0-21swapper/320:46:323
1732099504,28cyclictest0-21swapper/320:31:343
1732099504,28cyclictest0-21swapper/320:26:383
1732099504,27cyclictest0-21swapper/319:51:453
17320995034,9cyclictest23079-21gltestperf21:16:383
1732099503,28cyclictest0-21swapper/323:31:403
17320995019,13cyclictest0-21swapper/321:41:403
1731499504,27cyclictest0-21swapper/022:51:330
75152493,11sleep30-21swapper/323:00:213
75152493,11sleep30-21swapper/323:00:213
66702493,38sleep30-21swapper/321:51:253
63452493,12sleep30-21swapper/321:50:083
216582493,41sleep00-21swapper/023:27:550
1732099495,26cyclictest0-21swapper/319:01:423
1732099494,27cyclictest0-21swapper/320:36:383
17320994919,13cyclictest0-21swapper/320:23:113
1731499496,13cyclictest0-21swapper/019:16:560
17314994931,11cyclictest3254-21find23:56:410
218912482,10sleep30-21swapper/323:30:563
1732099484,37cyclictest0-21swapper/321:21:373
1732099484,27cyclictest0-21swapper/322:01:393
1732099484,26cyclictest0-21swapper/322:41:133
1732099484,26cyclictest0-21swapper/300:06:423
17320994829,11cyclictest4658-21cpuspeed_turbos19:31:363
17320994718,12cyclictest0-21swapper/319:41:333
17320994717,23cyclictest0-21swapper/322:26:263
1731499475,13cyclictest0-21swapper/019:53:410
1731499474,12cyclictest0-21swapper/020:16:540
136492473,9sleep30-21swapper/319:51:153
1732099465,25cyclictest0-21swapper/321:06:293
1732099464,35cyclictest0-21swapper/320:51:473
1732099464,25cyclictest0-21swapper/323:03:393
1732099464,25cyclictest0-21swapper/323:03:393
1732099463,23cyclictest5212-21sleep22:56:123
17320994619,12cyclictest0-21swapper/321:58:263
1731499464,14cyclictest0-21swapper/023:06:370
17314994630,9cyclictest27782-21grep23:41:320
17314994630,9cyclictest27782-21grep23:41:320
1732099453,26cyclictest0-21swapper/321:26:383
17320994516,12cyclictest0-21swapper/318:51:233
1732099443,25cyclictest0-21swapper/319:12:593
1731499383,28cyclictest0-21swapper/018:51:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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