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2026-05-18 - 07:53

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 May 18, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
95621050,4sleep03-21ksoftirqd/021:08:490
58429910219,65cyclictest26620-21cpuspeed_turbos19:23:483
58429910219,65cyclictest26620-21cpuspeed_turbos19:23:483
5842991004,73cyclictest0-21swapper/321:08:493
3000221000,4sleep030070-21sed19:28:480
584299964,25cyclictest0-21swapper/320:09:373
584299954,28cyclictest0-21swapper/319:03:343
584299954,26cyclictest0-21swapper/320:02:293
584299924,81cyclictest0-21swapper/319:40:173
584299924,28cyclictest0-21swapper/321:34:043
584299924,26cyclictest25991-21basename19:23:333
584299924,26cyclictest25991-21basename19:23:333
5842999214,9cyclictest121850irq/46-eth018:43:493
5842999214,9cyclictest121850irq/46-eth018:43:493
584299915,26cyclictest0-21swapper/321:53:383
584299914,27cyclictest0-21swapper/318:13:563
584299914,26cyclictest0-21swapper/320:51:383
584299914,26cyclictest0-21swapper/318:30:473
584299914,25cyclictest0-21swapper/319:28:593
584299913,26cyclictest0-21swapper/321:13:423
584299904,27cyclictest0-21swapper/320:18:543
584299903,27cyclictest0-21swapper/321:48:013
584299894,78cyclictest0-21swapper/319:11:023
584299894,25cyclictest0-21swapper/320:29:583
5842998921,12cyclictest0-21swapper/317:34:523
584299884,76cyclictest0-21swapper/319:03:543
584299884,26cyclictest0-21swapper/321:18:423
584299884,26cyclictest0-21swapper/319:45:523
584299883,27cyclictest0-21swapper/318:00:423
584299883,27cyclictest0-21swapper/318:00:423
5842998814,13cyclictest0-21swapper/320:54:013
5842998812,10cyclictest10156-21unixbench_multi22:09:003
5842998812,10cyclictest10156-21unixbench_multi22:09:003
584299874,26cyclictest0-21swapper/317:54:143
5842998736,43cyclictest9290-21gltestperf16:49:013
584299873,27cyclictest0-21swapper/320:34:173
5842998719,11cyclictest0-21swapper/321:58:563
584299864,26cyclictest0-21swapper/322:06:513
584299864,26cyclictest0-21swapper/321:40:393
584299864,26cyclictest0-21swapper/321:28:273
584299864,26cyclictest0-21swapper/320:24:203
584299854,26cyclictest0-21swapper/321:02:503
584299854,26cyclictest0-21swapper/320:18:313
584299854,26cyclictest0-21swapper/317:41:443
584299854,25cyclictest0-21swapper/317:00:323
584299853,22cyclictest15481-21ssh19:53:593
248599850,5rtkit-daemon2484-21rtkit-daemon17:30:050
584299844,72cyclictest0-21swapper/318:49:353
5842998430,46cyclictest13508-21needreboot20:38:563
5842998417,9cyclictest4836-21aten_r1power_cu17:48:483
584299834,72cyclictest0-21swapper/319:14:363
584299834,71cyclictest0-21swapper/318:33:573
584299834,27cyclictest0-21swapper/317:29:413
584299834,25cyclictest0-21swapper/321:28:363
584299834,25cyclictest0-21swapper/320:46:583
584299834,25cyclictest0-21swapper/320:46:583
584299834,21cyclictest28590-21ssh21:48:573
584299833,12cyclictest22728-21sed20:04:063
5842998316,7cyclictest30861-21diskmemload19:49:113
584299824,15cyclictest0-21swapper/318:54:043
584299824,12cyclictest0-21swapper/321:08:243
584299823,23cyclictest3797-21taskset19:38:293
584299823,20cyclictest1287-21snmpd16:43:503
5842998224,51cyclictest0-21swapper/318:19:313
5842998218,12cyclictest0-21swapper/318:03:573
584299813,9cyclictest26929-21unixbench_singl17:24:123
584299803,24cyclictest29032-21tr18:38:503
584299774,24cyclictest0-21swapper/317:08:533
584299773,31cyclictest0-21swapper/317:04:053
5842997722,10cyclictest15282-21hwlatdetect18:08:573
584299764,12cyclictest0-21swapper/318:25:463
584299763,21cyclictest24294-21threads17:19:113
584299754,23cyclictest0-21swapper/316:54:453
5842997513,13cyclictest0-21swapper/317:43:533
248599750,4rtkit-daemon2484-21rtkit-daemon16:44:072
248599740,6rtkit-daemon0-21swapper/120:17:510
5842997323,8cyclictest22527-21crond17:18:383
5842997323,8cyclictest22527-21crond17:18:383
248599730,4rtkit-daemon2484-21rtkit-daemon22:10:162
248599730,4rtkit-daemon2484-21rtkit-daemon22:10:162
248599720,6rtkit-daemon0-21swapper/122:04:460
248599720,5rtkit-daemon2484-21rtkit-daemon16:53:592
248599720,4rtkit-daemon2484-21rtkit-daemon19:35:002
248599720,4rtkit-daemon2484-21rtkit-daemon19:13:162
248599710,4rtkit-daemon2484-21rtkit-daemon20:40:352
584199705,48cyclictest0-21swapper/221:23:472
5841997026,28cyclictest0-21swapper/220:49:392
517727010,50sleep20-21swapper/216:39:082
584199695,56cyclictest0-21swapper/219:38:492
584099694,59cyclictest0-21swapper/118:23:471
584099694,57cyclictest17185-21ls20:44:031
584099694,57cyclictest17185-21ls20:44:031
5840996919,43cyclictest15568-21ps19:54:011
248599690,6rtkit-daemon2484-21rtkit-daemon20:46:422
248599690,6rtkit-daemon2484-21rtkit-daemon20:46:422
248599690,6rtkit-daemon0-21swapper/220:22:132
248599690,4rtkit-daemon2484-21rtkit-daemon20:04:592
248599680,6rtkit-daemon2484-21rtkit-daemon21:00:272
248599680,6rtkit-daemon2484-21rtkit-daemon17:32:502
248599670,5rtkit-daemon2484-21rtkit-daemon20:30:502
248599670,5rtkit-daemon2484-21rtkit-daemon18:58:012
248599670,5rtkit-daemon2484-21rtkit-daemon18:31:552
248599670,5rtkit-daemon2484-21rtkit-daemon17:07:282
248599670,5rtkit-daemon2484-21rtkit-daemon16:51:512
248599670,4rtkit-daemon2484-21rtkit-daemon16:58:512
248599660,6rtkit-daemon0-21swapper/120:34:430
248599660,5rtkit-daemon2484-21rtkit-daemon21:56:472
248599660,5rtkit-daemon2484-21rtkit-daemon19:32:302
248599660,5rtkit-daemon2484-21rtkit-daemon19:28:082
248599660,5rtkit-daemon2484-21rtkit-daemon19:28:082
248599660,5rtkit-daemon2484-21rtkit-daemon18:51:242
248599660,5rtkit-daemon2484-21rtkit-daemon18:19:552
248599660,5rtkit-daemon2484-21rtkit-daemon18:14:032
248599660,5rtkit-daemon2484-21rtkit-daemon18:03:562
248599660,5rtkit-daemon2484-21rtkit-daemon17:34:052
248599660,5rtkit-daemon2484-21rtkit-daemon17:09:582
248599660,4rtkit-daemon2484-21rtkit-daemon21:30:102
248599660,4rtkit-daemon2484-21rtkit-daemon18:10:032
248599660,4rtkit-daemon2484-21rtkit-daemon17:43:572
248599650,5rtkit-daemon2484-21rtkit-daemon22:05:312
248599650,5rtkit-daemon2484-21rtkit-daemon21:10:562
248599650,4rtkit-daemon2484-21rtkit-daemon21:44:552
248599650,4rtkit-daemon2484-21rtkit-daemon19:55:142
248599650,4rtkit-daemon2484-21rtkit-daemon19:23:152
248599650,4rtkit-daemon2484-21rtkit-daemon19:23:152
248599650,4rtkit-daemon2484-21rtkit-daemon18:38:552
248599650,4rtkit-daemon2484-21rtkit-daemon18:24:102
248599650,4rtkit-daemon2484-21rtkit-daemon17:18:502
584199645,11cyclictest9711-21gltestperf20:33:512
584099645,52cyclictest0-21swapper/119:48:561
584099645,52cyclictest0-21swapper/119:33:551
584099644,53cyclictest0-21swapper/120:13:531
584099644,28cyclictest0-21swapper/119:03:581
248599640,4rtkit-daemon2484-21rtkit-daemon21:15:482
248599640,4rtkit-daemon2484-21rtkit-daemon20:15:062
248599640,4rtkit-daemon2484-21rtkit-daemon20:11:512
248599640,4rtkit-daemon2484-21rtkit-daemon19:02:092
248599640,4rtkit-daemon2484-21rtkit-daemon18:44:172
248599640,4rtkit-daemon2484-21rtkit-daemon18:44:172
584099635,51cyclictest0-21swapper/121:23:441
584099634,53cyclictest0-21swapper/121:28:441
584099634,13cyclictest3097-21ls20:23:511
584099633,54cyclictest0-21swapper/120:28:491
584099633,54cyclictest0-21swapper/119:29:021
248599630,4rtkit-daemon2484-21rtkit-daemon19:15:082
94702624,50sleep10-21swapper/116:49:051
584199625,49cyclictest0-21swapper/221:03:362
584099624,52cyclictest0-21swapper/122:03:591
584099624,51cyclictest0-21swapper/121:38:491
5840996212,41cyclictest0-21swapper/119:19:031
5840996212,41cyclictest0-21swapper/119:19:031
584099615,29cyclictest16173-21munin-node19:09:051
584099614,50cyclictest21652-21perl20:03:511
584099614,50cyclictest0-21swapper/119:44:011
584099614,50cyclictest0-21swapper/118:49:121
584099613,52cyclictest0-21swapper/117:12:281
584099604,49cyclictest0-21swapper/122:09:171
584099604,49cyclictest0-21swapper/122:09:171
584099594,49cyclictest0-21swapper/121:53:551
583999595,37cyclictest0-21swapper/020:29:470
584099588,44cyclictest22126-21awk20:53:291
584099585,46cyclictest0-21swapper/120:19:241
584099584,48cyclictest5184-21ssh21:14:011
584099584,28cyclictest0-21swapper/121:49:031
584099583,49cyclictest201ktimersoftd/121:07:241
584099583,49cyclictest0-21swapper/119:58:511
584099583,49cyclictest0-21swapper/119:40:581
584099583,48cyclictest0-21swapper/118:54:061
584099583,48cyclictest0-21swapper/117:13:501
584099583,48cyclictest0-21swapper/117:13:501
584099583,37cyclictest0-21swapper/119:13:411
5840995819,23cyclictest0-21swapper/120:33:421
584199574,48cyclictest0-21swapper/221:18:502
584199574,47cyclictest0-21swapper/219:53:322
584099574,45cyclictest0-21swapper/121:34:091
584099574,45cyclictest0-21swapper/118:58:591
584099573,48cyclictest0-21swapper/118:43:471
584099573,48cyclictest0-21swapper/118:43:471
584099573,10cyclictest0-21swapper/119:25:511
584099573,10cyclictest0-21swapper/119:25:511
5840995718,12cyclictest0-21swapper/121:58:551
5839995721,28cyclictest18902-21crond18:18:360
263662573,46sleep10-21swapper/121:46:291
20682573,46sleep00-21swapper/018:48:400
584199563,38cyclictest0-21swapper/219:47:162
5841995616,21cyclictest19098-21switchtime19:59:042
584099564,46cyclictest0-21swapper/120:12:311
584099563,48cyclictest0-21swapper/121:13:171
584099563,45cyclictest0-21swapper/120:58:501
584099563,10cyclictest0-21swapper/121:21:021
5840995621,8cyclictest10726-21missed_timers17:59:001
5840995621,8cyclictest10726-21missed_timers17:59:001
583999564,45cyclictest0-21swapper/018:58:490
248599560,13rtkit-daemon2484-21rtkit-daemon21:58:542
584199555,31cyclictest0-21swapper/221:38:122
584099553,46cyclictest0-21swapper/118:06:321
584099553,43cyclictest0-21swapper/117:44:041
583999554,46cyclictest0-21swapper/019:05:080
583999554,24cyclictest0-21swapper/019:48:500
5839995523,12cyclictest0-21swapper/016:43:500
5839995522,28cyclictest28513-21ntp_offset21:48:560
243382553,45sleep124460-21df_abs18:28:501
134312553,44sleep113567-21cut16:58:531
584199547,28cyclictest0-21swapper/221:38:502
584199545,29cyclictest0-21swapper/221:48:522
584199544,31cyclictest0-21swapper/220:25:422
584199542,48cyclictest0-21swapper/219:07:402
584099545,28cyclictest0-21swapper/117:38:561
584099545,14cyclictest2513-21udisks-daemon20:54:041
583999543,42cyclictest0-21swapper/020:54:040
5839995429,9cyclictest18873-21grep21:34:030
5839995411,13cyclictest0-21swapper/020:07:570
225232542,45sleep00-21swapper/017:18:350
225232542,45sleep00-21swapper/017:18:350
584199535,29cyclictest0-21swapper/217:24:052
584199534,29cyclictest0-21swapper/217:13:582
584199534,29cyclictest0-21swapper/217:13:582
584099535,38cyclictest0-21swapper/117:58:371
584099534,27cyclictest0-21swapper/117:19:101
584099533,9cyclictest0-21swapper/120:39:061
584099533,43cyclictest0-21swapper/116:53:561
583999534,22cyclictest0-21swapper/019:19:040
583999534,22cyclictest0-21swapper/019:19:040
583999533,44cyclictest0-21swapper/021:19:030
313302533,12sleep00-21swapper/017:34:070
104992532,44sleep00-21swapper/016:52:310
584199526,27cyclictest0-21swapper/220:54:192
584199524,28cyclictest0-21swapper/217:58:552
584199524,28cyclictest0-21swapper/217:58:552
584199524,28cyclictest0-21swapper/217:43:382
584099523,43cyclictest0-21swapper/117:30:331
584099523,42cyclictest0-21swapper/117:23:581
5840995219,14cyclictest0-21swapper/118:10:441
5839995233,12cyclictest0-21swapper/020:38:480
583999523,43cyclictest0-21swapper/021:55:060
583999523,40cyclictest0-21swapper/018:38:550
583999523,34cyclictest0-21swapper/021:28:500
5839995229,17cyclictest0-21swapper/021:43:390
127902522,44sleep00-21swapper/021:26:160
59922512,9sleep00-21swapper/021:16:040
5841995120,14cyclictest0-21swapper/217:50:402
584099515,27cyclictest0-21swapper/117:48:541
583999515,38cyclictest0-21swapper/019:09:060
583999514,41cyclictest0-21swapper/019:39:000
583999514,40cyclictest0-21swapper/018:44:040
583999514,40cyclictest0-21swapper/018:44:040
5839995135,11cyclictest0-21swapper/020:45:580
5839995135,11cyclictest0-21swapper/020:45:580
5839995132,13cyclictest0-21swapper/018:58:070
583999513,43cyclictest0-21swapper/021:39:470
583999513,42cyclictest0-21swapper/019:14:390
583999513,41cyclictest0-21swapper/019:44:010
583999513,13cyclictest0-21swapper/019:25:510
583999513,13cyclictest0-21swapper/019:25:510
5839995123,22cyclictest0-21swapper/018:03:370
5839995123,22cyclictest0-21swapper/018:03:370
249302512,10sleep00-21swapper/018:28:570
14922513,40sleep00-21swapper/021:58:370
69372502,9sleep00-21swapper/017:53:180
584199504,27cyclictest0-21swapper/217:54:032
584099505,38cyclictest0-21swapper/118:33:481
584099505,26cyclictest0-21swapper/117:05:321
5840995031,10cyclictest7529-21switchtime16:44:101
584099503,42cyclictest0-21swapper/118:14:031
584099503,41cyclictest0-21swapper/118:18:401
584099503,19cyclictest0-21swapper/118:38:491
583999504,39cyclictest0-21swapper/022:08:370
583999504,39cyclictest0-21swapper/022:08:370
5839995036,9cyclictest13858-21grep16:58:560
5839995033,10cyclictest26666-21grep20:58:500
583999503,39cyclictest0-21swapper/019:53:460
583999502,25cyclictest0-21swapper/018:11:070
33922502,43sleep00-21swapper/019:37:020
584199494,27cyclictest0-21swapper/218:35:482
583999498,36cyclictest0-21swapper/020:19:050
583999494,39cyclictest0-21swapper/020:02:490
5839994932,12cyclictest0-21swapper/021:03:420
5839994932,12cyclictest0-21swapper/018:03:490
5839994931,12cyclictest0-21swapper/020:08:400
5839994921,12cyclictest0-21swapper/020:24:020
584099483,38cyclictest0-21swapper/117:33:491
5839994831,11cyclictest0-21swapper/017:53:510
583999483,27cyclictest0-21swapper/017:09:020
5839994826,10cyclictest0-21swapper/018:33:460
5839994823,11cyclictest0-21swapper/020:50:350
17392482,9sleep00-21swapper/017:39:230
584299473,27cyclictest0-21swapper/316:43:403
583999474,37cyclictest0-21swapper/017:23:380
5839994722,8cyclictest23682-21latency_hist18:28:360
5839994631,10cyclictest0-21swapper/017:43:570
5839994629,11cyclictest25463-21tr17:23:520
5839994531,9cyclictest16430-21gltestperf17:03:570
129102442,9sleep00-21swapper/016:57:470
5839994222,14cyclictest0-21swapper/018:19:050
55242424,32sleep10-21swapper/116:40:031
389023511,14sleep00-21swapper/016:38:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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