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2026-09-03 - 05:43

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 376 highest latencies:
System rack1slot6s.osadl.org (updated Thu Sep 03, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
219499960,6rtkit-daemon0-21swapper/220:21:352
1719899923,65cyclictest0-21swapper/321:17:543
1719899914,69cyclictest0-21swapper/320:39:163
1719899914,69cyclictest0-21swapper/320:39:163
1719899914,66cyclictest0-21swapper/322:27:423
1719899904,64cyclictest0-21swapper/320:18:433
115952890,4sleep2281ktimersoftd/220:28:572
1719899884,68cyclictest0-21swapper/322:55:443
1719899883,21cyclictest0-21swapper/320:55:563
17198998810,14cyclictest0-21swapper/321:20:583
17198998810,14cyclictest0-21swapper/321:20:583
1719899874,22cyclictest0-21swapper/321:49:173
1719899873,25cyclictest0-21swapper/321:01:283
1719899865,14cyclictest0-21swapper/320:23:223
1719899864,73cyclictest0-21swapper/320:03:593
1719899864,65cyclictest0-21swapper/320:13:013
1719899864,63cyclictest0-21swapper/321:44:023
1719899864,63cyclictest0-21swapper/321:41:283
1719899864,23cyclictest0-21swapper/321:09:163
1719899864,21cyclictest0-21swapper/321:03:533
1719899863,66cyclictest0-21swapper/322:38:403
1719899863,66cyclictest0-21swapper/322:38:403
1719899855,23cyclictest0-21swapper/319:54:543
1719899854,74cyclictest0-21swapper/319:49:163
1719899854,64cyclictest0-21swapper/321:24:273
1719899854,23cyclictest0-21swapper/322:49:593
1719899845,72cyclictest0-21swapper/322:14:543
1719899845,16cyclictest0-21swapper/322:19:493
1719899844,60cyclictest0-21swapper/318:58:583
1719899843,21cyclictest0-21swapper/318:38:573
17198998415,9cyclictest19537-21memory21:29:033
17198998410,10cyclictest15862-21proc_pri20:34:103
1719899834,73cyclictest0-21swapper/322:10:313
1719899834,72cyclictest0-21swapper/321:54:083
1719899834,23cyclictest0-21swapper/322:59:543
1719899834,22cyclictest0-21swapper/322:33:523
1719899833,24cyclictest0-21swapper/320:29:073
17198998323,54cyclictest22291-21needreboot20:44:053
1719899825,22cyclictest0-21swapper/322:30:193
1719899824,61cyclictest0-21swapper/319:45:163
1719899823,60cyclictest0-21swapper/320:24:153
1719899823,22cyclictest0-21swapper/320:03:093
1719899814,70cyclictest0-21swapper/318:54:153
1719899814,22cyclictest0-21swapper/319:42:053
1719899813,61cyclictest0-21swapper/318:24:093
1719899813,23cyclictest1124-21snmpd22:44:553
17198998117,9cyclictest107550irq/46-eth021:33:513
1719899804,69cyclictest0-21swapper/322:04:063
1719899804,59cyclictest0-21swapper/319:04:053
1719899804,23cyclictest0-21swapper/322:03:183
1719899804,23cyclictest0-21swapper/322:03:183
1719899803,21cyclictest0-21swapper/320:51:533
17198998013,11cyclictest107550irq/46-eth019:28:453
1719899794,56cyclictest0-21swapper/319:15:163
1719899794,56cyclictest0-21swapper/319:15:163
1719899794,21cyclictest0-21swapper/317:44:003
1719899794,16cyclictest0-21swapper/318:47:403
1719899793,21cyclictest19064-21diskmemload23:07:233
1719899784,68cyclictest0-21swapper/317:39:023
1719899784,67cyclictest0-21swapper/318:35:093
1719899784,67cyclictest0-21swapper/318:35:093
1719899783,9cyclictest107550irq/46-eth018:08:483
17196997826,32cyclictest14415-21open_inodes22:59:051
1719899773,24cyclictest9927-21latency_hist19:38:453
17198997723,46cyclictest3494-21unixbench-2d18:14:233
1719899764,65cyclictest0-21swapper/318:29:103
1719899757,13cyclictest0-21swapper/319:33:463
1719899755,15cyclictest0-21swapper/317:56:003
1719899755,15cyclictest0-21swapper/317:56:003
219499740,5rtkit-daemon0-21swapper/120:44:270
1719899744,12cyclictest0-21swapper/318:19:003
1719899743,24cyclictest0-21swapper/317:51:453
17198997422,46cyclictest29840-21unixbench_singl19:09:193
17197997445,14cyclictest0-21swapper/220:34:042
17197997442,10cyclictest0-21swapper/220:54:132
219499730,6rtkit-daemon0-21swapper/118:24:170
219499730,6rtkit-daemon0-21swapper/117:39:190
1719899735,21cyclictest0-21swapper/318:09:113
1719899733,13cyclictest0-21swapper/319:19:023
17198997321,44cyclictest28087-21missed_timers17:59:123
1719899723,62cyclictest0-21swapper/318:53:463
1719699722,61cyclictest0-21swapper/120:20:481
219499700,6rtkit-daemon0-21swapper/122:59:360
1719799706,55cyclictest1227-21runrttasks22:32:402
1719699685,55cyclictest0-21swapper/121:09:071
1719699685,14cyclictest0-21swapper/123:06:461
219499670,6rtkit-daemon0-21swapper/117:38:490
17197996722,27cyclictest0-21swapper/221:45:402
17195996750,10cyclictest27696-21sort20:04:020
219499660,5rtkit-daemon0-21swapper/118:21:100
1719699664,55cyclictest0-21swapper/122:49:081
219499650,7rtkit-daemon0-21swapper/120:41:121
219499650,7rtkit-daemon0-21swapper/120:41:121
1719899654,18cyclictest0-21swapper/317:38:493
1719699646,51cyclictest0-21swapper/119:14:091
1719699646,51cyclictest0-21swapper/119:14:091
1719699645,52cyclictest0-21swapper/120:14:191
1719699644,53cyclictest0-21swapper/120:08:491
17197996338,8cyclictest32172-21diskstats21:48:582
1719699636,48cyclictest0-21swapper/121:54:111
1719699634,52cyclictest0-21swapper/122:53:541
1719699634,52cyclictest0-21swapper/119:44:041
219499620,8rtkit-daemon0-21swapper/219:40:222
219499620,8rtkit-daemon0-21swapper/219:12:452
219499620,8rtkit-daemon0-21swapper/218:36:392
219499620,8rtkit-daemon0-21swapper/218:36:392
219499620,7rtkit-daemon0-21swapper/219:07:162
219499620,7rtkit-daemon0-21swapper/217:43:262
219499620,10rtkit-daemon0-21swapper/221:18:182
1719799625,41cyclictest0-21swapper/222:37:072
1719799623,52cyclictest9930-21diskmemload21:35:212
1719699626,50cyclictest0-21swapper/120:58:521
1719699625,50cyclictest0-21swapper/121:41:221
1719699624,51cyclictest0-21swapper/121:14:151
1719699624,18cyclictest0-21swapper/121:23:411
1719699624,18cyclictest0-21swapper/121:23:411
1719699624,13cyclictest0-21swapper/122:21:051
1719599626,48cyclictest0-21swapper/020:34:040
219499610,9rtkit-daemon0-21swapper/220:27:272
219499610,9rtkit-daemon0-21swapper/218:39:242
219499610,8rtkit-daemon0-21swapper/221:03:042
219499610,8rtkit-daemon0-21swapper/220:05:582
219499610,8rtkit-daemon0-21swapper/219:18:532
219499610,8rtkit-daemon0-21swapper/218:30:322
219499610,8rtkit-daemon0-21swapper/218:03:562
219499610,8rtkit-daemon0-21swapper/217:59:412
219499610,6rtkit-daemon0-21swapper/218:47:242
219499610,11rtkit-daemon0-21swapper/217:49:192
219499610,10rtkit-daemon0-21swapper/222:15:532
219499610,10rtkit-daemon0-21swapper/222:01:162
219499610,10rtkit-daemon0-21swapper/222:01:162
219499610,10rtkit-daemon0-21swapper/221:06:182
219499610,10rtkit-daemon0-21swapper/219:52:142
17197996110,42cyclictest13082-21aten_r1power_cu22:58:482
1719699615,50cyclictest0-21swapper/118:19:071
1719699615,49cyclictest0-21swapper/121:58:511
1719699615,49cyclictest0-21swapper/121:58:511
1719699614,50cyclictest0-21swapper/121:43:551
1719699613,51cyclictest0-21swapper/120:33:551
17196996125,9cyclictest28989-21sh22:33:531
1719599615,50cyclictest0-21swapper/019:45:260
17195996142,12cyclictest0-21swapper/019:58:040
1719599614,48cyclictest0-21swapper/020:40:540
1719599614,48cyclictest0-21swapper/020:40:540
219499600,9rtkit-daemon0-21swapper/222:53:372
219499600,9rtkit-daemon0-21swapper/222:47:142
219499600,9rtkit-daemon0-21swapper/221:56:092
219499600,9rtkit-daemon0-21swapper/221:38:472
219499600,9rtkit-daemon0-21swapper/217:53:562
219499600,9rtkit-daemon0-21swapper/217:53:562
219499600,7rtkit-daemon0-21swapper/223:04:362
219499600,7rtkit-daemon0-21swapper/222:20:002
219499600,7rtkit-daemon0-21swapper/221:20:482
219499600,7rtkit-daemon0-21swapper/221:20:482
219499600,7rtkit-daemon0-21swapper/220:14:582
219499600,7rtkit-daemon0-21swapper/220:10:432
219499600,7rtkit-daemon0-21swapper/219:44:592
219499600,7rtkit-daemon0-21swapper/219:00:462
219499600,7rtkit-daemon0-21swapper/218:50:092
219499600,7rtkit-daemon0-21swapper/218:10:482
219499600,3rtkit-daemon0-21swapper/218:14:252
219499600,2rtkit-daemon0-21swapper/219:15:152
219499600,2rtkit-daemon0-21swapper/219:15:152
219499600,11rtkit-daemon0-21swapper/219:25:222
219499600,10rtkit-daemon0-21swapper/222:10:232
219499600,10rtkit-daemon0-21swapper/221:30:322
219499600,10rtkit-daemon0-21swapper/221:25:402
219499600,10rtkit-daemon0-21swapper/220:49:042
1719799604,50cyclictest0-21swapper/219:54:562
17197996025,29cyclictest0-21swapper/222:26:022
1719699605,49cyclictest0-21swapper/121:07:431
1719699605,48cyclictest23579-21sshd17:49:171
1719699603,50cyclictest0-21swapper/121:51:371
17195996042,12cyclictest0-21swapper/020:17:220
17195996039,13cyclictest0-21swapper/019:43:440
219499590,2rtkit-daemon0-21swapper/217:45:192
17197995938,13cyclictest1227-21runrttasks22:53:512
1719699596,47cyclictest0-21swapper/121:32:261
1719699595,47cyclictest1124-21snmpd19:57:231
1719699594,49cyclictest0-21swapper/119:51:051
1719699593,9cyclictest9848-21fschecks_time22:03:571
17196995921,14cyclictest0-21swapper/121:23:561
17195995942,12cyclictest0-21swapper/020:26:410
17195995940,12cyclictest0-21swapper/020:29:060
17195995939,13cyclictest0-21swapper/019:49:110
59872583,10sleep10-21swapper/122:47:451
219499580,9rtkit-daemon0-21swapper/222:06:092
219499580,10rtkit-daemon0-21swapper/220:47:122
17197995837,14cyclictest0-21swapper/218:24:142
1719699584,47cyclictest25652-21munin-node20:49:071
1719699583,31cyclictest0-21swapper/119:39:271
1719599585,45cyclictest0-21swapper/021:33:550
1719599584,47cyclictest0-21swapper/023:04:030
17195995828,12cyclictest0-21swapper/021:09:160
207062573,46sleep00-21swapper/018:53:460
1719799575,14cyclictest0-21swapper/222:38:492
1719799575,14cyclictest0-21swapper/222:38:492
17197995736,14cyclictest0-21swapper/221:09:092
1719699577,27cyclictest0-21swapper/120:32:331
1719699574,45cyclictest30891-21cat20:58:431
1719699574,11cyclictest28793-21unixbench_multi20:04:171
17196995721,13cyclictest0-21swapper/117:44:211
17196995720,12cyclictest27473-21vmstat22:29:121
17196995718,14cyclictest0-21swapper/117:39:221
1719599576,46cyclictest0-21swapper/022:05:380
17195995743,9cyclictest0-21swapper/020:58:030
17195995742,10cyclictest0-21swapper/021:55:270
17195995741,11cyclictest0-21swapper/021:33:170
1719599574,46cyclictest0-21swapper/022:20:510
17195995736,14cyclictest0-21swapper/020:49:120
158092573,47sleep115886-21cpu22:13:511
305692563,12sleep00-21swapper/021:45:520
219499560,2rtkit-daemon0-21swapper/218:19:102
206292560,6sleep020630-21grep17:44:070
1719699565,27cyclictest0-21swapper/120:46:141
1719699564,29cyclictest0-21swapper/118:09:211
1719699564,13cyclictest0-21swapper/122:13:161
17195995641,10cyclictest0-21swapper/022:33:260
1719599563,46cyclictest0-21swapper/021:23:240
1719599563,46cyclictest0-21swapper/021:23:240
1719599563,44cyclictest0-21swapper/022:54:040
121962562,46sleep00-21swapper/018:34:110
121962562,46sleep00-21swapper/018:34:110
1719799554,15cyclictest0-21swapper/220:00:262
17197995535,13cyclictest0-21swapper/220:43:172
17197995535,13cyclictest0-21swapper/220:43:172
1719699556,25cyclictest0-21swapper/120:00:101
1719699554,28cyclictest0-21swapper/118:14:091
1719699554,27cyclictest0-21swapper/122:39:191
1719699554,27cyclictest0-21swapper/122:39:191
1719699554,27cyclictest0-21swapper/122:23:491
1719699554,27cyclictest0-21swapper/118:44:061
1719699554,13cyclictest0-21swapper/121:34:171
17196995520,13cyclictest0-21swapper/120:26:021
17196995520,12cyclictest0-21swapper/117:54:081
17196995520,12cyclictest0-21swapper/117:54:081
17195995536,13cyclictest2523-21diskstats21:03:580
17195995535,13cyclictest0-21swapper/021:13:590
17195995516,23cyclictest0-21swapper/018:29:060
314272542,46sleep00-21swapper/022:36:440
1719699545,26cyclictest0-21swapper/119:25:171
1719699544,27cyclictest0-21swapper/118:38:471
1719699544,27cyclictest0-21swapper/118:38:471
1719699543,26cyclictest0-21swapper/118:43:481
17196995418,13cyclictest0-21swapper/118:24:221
1719599545,43cyclictest0-21swapper/022:49:370
1719599545,42cyclictest0-21swapper/021:49:170
17195995439,10cyclictest0-21swapper/022:23:510
17195995436,12cyclictest1124-21snmpd20:19:590
17195995434,12cyclictest0-21swapper/022:08:510
29672533,43sleep00-21swapper/019:23:490
1719699534,26cyclictest0-21swapper/118:30:091
1719699533,10cyclictest0-21swapper/117:59:161
1719599534,42cyclictest0-21swapper/022:39:010
1719599534,42cyclictest0-21swapper/022:39:010
17195995338,10cyclictest0-21swapper/020:03:180
17195995337,11cyclictest0-21swapper/018:39:200
17195995322,14cyclictest0-21swapper/017:58:480
17195995322,14cyclictest0-21swapper/017:58:480
314312523,43sleep00-21swapper/018:08:070
27082523,43sleep10-21swapper/119:23:221
17197995217,14cyclictest0-21swapper/219:29:012
1719699524,25cyclictest0-21swapper/119:34:071
1719699523,26cyclictest0-21swapper/119:29:061
17196995220,13cyclictest29305-21needreboot19:09:111
1719599525,41cyclictest0-21swapper/019:34:010
1719599524,41cyclictest0-21swapper/020:09:000
17195995236,11cyclictest0-21swapper/021:39:070
1719599523,44cyclictest0-21swapper/021:27:380
17195995224,13cyclictest0-21swapper/021:58:530
17195995224,13cyclictest0-21swapper/021:58:530
17195995220,26cyclictest5027-21ssh22:44:120
1719799515,28cyclictest0-21swapper/219:34:062
1719799514,28cyclictest0-21swapper/218:54:062
1719699514,29cyclictest0-21swapper/118:59:051
320902503,40sleep00-21swapper/019:14:180
320902503,40sleep00-21swapper/019:14:180
223682503,8sleep00-21swapper/018:54:140
178442503,41sleep00-21swapper/022:15:110
1719599506,39cyclictest0-21swapper/020:58:510
17195995035,11cyclictest0-21swapper/018:14:030
17195995034,11cyclictest0-21swapper/018:09:110
17195995032,11cyclictest26639-21hwlatdetect19:04:060
17195995018,24cyclictest0-21swapper/019:19:070
182462492,42sleep00-21swapper/018:47:490
17196994919,24cyclictest22170-21netstat18:54:101
1719699485,29cyclictest0-21swapper/118:51:261
1719599484,38cyclictest0-21swapper/017:59:000
17195994833,10cyclictest0-21swapper/018:59:090
17195994825,11cyclictest0-21swapper/019:09:020
241752473,10sleep00-21swapper/017:51:460
17196994730,10cyclictest26595-21gltestperf19:04:061
1719699473,7cyclictest29472-21munin-node18:04:001
1719699445,15cyclictest0-21swapper/117:38:501
1719599423,34cyclictest0-21swapper/019:31:430
1719799374,14cyclictest0-21swapper/217:38:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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