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2026-04-12 - 18:23

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
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 100 highest latencies:
System rack1slot6s.osadl.org (updated Sun Apr 12, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127009911739,11cyclictest0-21swapper/208:38:142
127009911439,13cyclictest0-21swapper/207:42:252
12699991074,53cyclictest0-21swapper/108:47:171
12699991074,53cyclictest0-21swapper/108:47:171
127009910441,9cyclictest13294-21fschecks_count07:27:122
127009910441,9cyclictest13294-21fschecks_count07:27:122
12700991044,92cyclictest0-21swapper/209:17:162
248599990,6rtkit-daemon0-21swapper/305:20:153
1270099994,33cyclictest0-21swapper/207:32:272
248599980,5rtkit-daemon0-21swapper/305:22:303
220962980,8sleep10-21swapper/106:42:161
1270099974,28cyclictest0-21swapper/210:07:212
1270099974,28cyclictest0-21swapper/210:07:212
12700999711,26cyclictest0-21swapper/208:42:082
1270099964,27cyclictest0-21swapper/205:22:532
12697999636,53cyclictest0-21swapper/007:48:140
12700999513,27cyclictest1972-21sshd10:22:062
1270099934,37cyclictest0-21swapper/210:39:102
1269799935,13cyclictest0-21swapper/007:27:280
1269799935,13cyclictest0-21swapper/007:27:280
1269799934,82cyclictest0-21swapper/009:17:130
12697999335,51cyclictest0-21swapper/009:55:080
12697999325,13cyclictest0-21swapper/008:52:090
12697999230,9cyclictest5431-21diskmemload07:52:200
1269799915,26cyclictest0-21swapper/009:57:060
260912900,8sleep30-21swapper/308:32:243
1269799906,39cyclictest0-21swapper/008:07:240
1269799906,39cyclictest0-21swapper/008:07:240
1269799905,35cyclictest0-21swapper/007:42:150
1269799904,36cyclictest0-21swapper/010:12:130
12697999030,13cyclictest0-21swapper/010:39:230
1269799903,40cyclictest0-21swapper/008:42:050
1270099894,52cyclictest0-21swapper/210:12:252
12700998937,10cyclictest0-21swapper/210:27:072
1269799896,25cyclictest0-21swapper/009:37:580
12697998940,41cyclictest12805-21ssh09:02:070
1269799894,39cyclictest0-21swapper/007:32:140
1269799893,36cyclictest0-21swapper/010:21:590
12697998922,13cyclictest0-21swapper/008:15:100
1269799884,38cyclictest0-21swapper/008:47:090
1269799884,38cyclictest0-21swapper/008:47:090
12697998833,12cyclictest0-21swapper/008:58:070
12697998833,12cyclictest0-21swapper/007:39:050
1269799883,42cyclictest0-21swapper/007:57:270
1269799883,35cyclictest0-21swapper/006:17:210
12697998820,12cyclictest0-21swapper/009:12:210
12697998813,12cyclictest0-21swapper/009:07:070
1269799873,22cyclictest4597-21kworker/0:008:03:520
1269799864,40cyclictest0-21swapper/006:06:580
1269799863,7cyclictest25110-21ssh08:32:100
1269799863,38cyclictest0-21swapper/009:42:030
12697998616,12cyclictest0-21swapper/007:22:210
1269799855,34cyclictest0-21swapper/006:47:270
1269799855,13cyclictest0-21swapper/008:31:520
1269799854,38cyclictest0-21swapper/010:29:480
1269799854,34cyclictest0-21swapper/010:35:260
12697998532,7cyclictest19750-21ssh08:23:200
12697998516,13cyclictest0-21swapper/010:07:230
12697998516,13cyclictest0-21swapper/010:07:230
1269799844,39cyclictest0-21swapper/007:02:080
12697998424,12cyclictest0-21swapper/009:32:050
1269799834,38cyclictest0-21swapper/005:42:210
1269799834,37cyclictest0-21swapper/010:42:120
1269799834,37cyclictest0-21swapper/010:02:200
12697998330,11cyclictest0-21swapper/006:09:460
12697998330,11cyclictest0-21swapper/006:09:460
12697998325,14cyclictest0-21swapper/009:22:060
12700998232,14cyclictest0-21swapper/208:12:092
1269799823,33cyclictest0-21swapper/008:40:210
12697998228,10cyclictest18041-21grep05:27:140
12697998222,12cyclictest0-21swapper/006:16:280
1269799803,33cyclictest14384-21tr06:27:120
1269799803,15cyclictest0-21swapper/009:28:190
1269799803,15cyclictest0-21swapper/009:28:190
12697997926,7cyclictest27238-21munin-node05:47:320
12697997833,11cyclictest0-21swapper/005:41:440
12697997830,12cyclictest0-21swapper/006:56:280
1269799775,34cyclictest0-21swapper/007:12:080
12697997720,11cyclictest0-21swapper/010:21:280
100332770,3sleep3361ktimersoftd/308:57:163
12697997529,12cyclictest0-21swapper/008:17:000
12697997422,9cyclictest21292-21telnet06:42:080
248599730,6rtkit-daemon0-21swapper/305:21:002
12700997346,10cyclictest30788-21unixbench_multi09:27:242
12700997346,10cyclictest30788-21unixbench_multi09:27:242
12700996941,13cyclictest0-21swapper/209:37:042
12700996939,14cyclictest0-21swapper/208:32:132
1269999696,55cyclictest0-21swapper/109:42:071
12700996839,13cyclictest0-21swapper/209:57:012
12700996638,12cyclictest0-21swapper/208:29:562
12699996522,18cyclictest28051-21cut08:37:061
1270099643,52cyclictest0-21swapper/209:01:302
1269999645,51cyclictest21106-21python07:37:251
1269999644,18cyclictest0-21swapper/110:41:071
1081926410,43sleep20-21swapper/205:12:142
12701996332,25cyclictest11010-21sed07:22:303
1270099634,51cyclictest0-21swapper/209:14:132
12700996337,8cyclictest25036-21sendmail_mailqu06:47:262
12700996337,11cyclictest0-21swapper/206:52:122
1269999636,51cyclictest0-21swapper/110:29:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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