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2026-06-29 - 08:08

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 Mon Jun 29, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2786221050,13sleep1940899cyclictest20:26:021
1291321030,3sleep2281ktimersoftd/223:17:292
940799954,83cyclictest0-21swapper/023:46:000
9407999534,54cyclictest2092-21diskmemload22:10:550
9407999534,54cyclictest2092-21diskmemload22:10:550
940799934,33cyclictest0-21swapper/022:56:160
940799933,8cyclictest7575-21unixbench_singl20:46:220
940799913,82cyclictest0-21swapper/022:44:540
940799913,81cyclictest0-21swapper/022:31:210
940799913,38cyclictest0-21swapper/022:06:010
9407999124,12cyclictest0-21swapper/019:41:180
940799904,32cyclictest0-21swapper/000:00:000
940799904,14cyclictest0-21swapper/023:26:270
940799903,37cyclictest0-21swapper/020:56:510
940799893,78cyclictest0-21swapper/021:06:130
940799893,36cyclictest0-21swapper/019:11:160
940799893,32cyclictest0-21swapper/022:01:160
940799884,38cyclictest0-21swapper/023:54:210
940799884,31cyclictest1227-21runrttasks21:21:010
940799883,77cyclictest0-21swapper/023:41:110
940799883,33cyclictest0-21swapper/021:30:570
940799883,32cyclictest0-21swapper/000:00:520
9407998828,7cyclictest5432-21runrttasks22:20:140
9407998824,12cyclictest0-21swapper/023:02:420
940799874,33cyclictest0-21swapper/023:36:090
9407998739,42cyclictest0-21swapper/023:25:200
9407998738,43cyclictest0-21swapper/020:55:430
9407998732,11cyclictest21233-21munin-node21:56:050
940799873,11cyclictest0-21swapper/023:10:420
9407998716,11cyclictest0-21swapper/021:16:010
940799863,39cyclictest0-21swapper/021:51:170
940799863,31cyclictest0-21swapper/023:32:480
940799863,31cyclictest0-21swapper/023:32:480
940799854,33cyclictest0-21swapper/023:11:230
940799854,32cyclictest0-21swapper/021:41:130
9407998532,9cyclictest1466-21rm21:26:020
940799853,34cyclictest0-21swapper/022:21:150
940799853,33cyclictest0-21swapper/022:36:000
31292850,4sleep23133-21fschecks_count22:16:012
219499850,5rtkit-daemon2193-21rtkit-daemon20:48:022
940799844,33cyclictest0-21swapper/021:50:030
940799843,33cyclictest0-21swapper/021:01:210
940799834,32cyclictest0-21swapper/022:26:020
940799833,35cyclictest0-21swapper/021:40:210
940799833,34cyclictest0-21swapper/023:16:030
9407998316,8cyclictest25853-21latency_hist22:50:430
9410998220,14cyclictest0-21swapper/322:36:163
9407998237,39cyclictest0-21swapper/022:51:190
9407998237,39cyclictest0-21swapper/022:51:190
940799823,12cyclictest0-21swapper/000:09:440
9407998124,13cyclictest0-21swapper/021:11:190
9407998034,40cyclictest0-21swapper/019:31:170
9407998034,40cyclictest0-21swapper/019:31:170
9407998020,12cyclictest0-21swapper/019:21:050
940799784,32cyclictest0-21swapper/019:36:030
940799776,34cyclictest0-21swapper/019:16:210
940799753,34cyclictest0-21swapper/020:40:590
9407997421,12cyclictest0-21swapper/019:01:070
219499740,5rtkit-daemon2193-21rtkit-daemon21:50:142
219499740,4rtkit-daemon2193-21rtkit-daemon23:10:342
940799733,32cyclictest808-21munin-run19:30:500
940799733,32cyclictest808-21munin-run19:30:500
940899723,10cyclictest0-21swapper/123:10:501
9407997224,12cyclictest0-21swapper/018:40:540
326872720,3sleep20-21swapper/219:26:222
326872720,3sleep20-21swapper/219:26:222
940999714,38cyclictest0-21swapper/221:34:572
9407997125,12cyclictest0-21swapper/018:56:110
9407997031,5cyclictest0-21swapper/020:09:310
219499690,5rtkit-daemon2193-21rtkit-daemon21:01:162
219499680,5rtkit-daemon2193-21rtkit-daemon23:30:402
940899674,55cyclictest0-21swapper/100:06:021
9407996724,11cyclictest0-21swapper/020:12:130
9407996724,11cyclictest0-21swapper/020:12:130
219499670,5rtkit-daemon2193-21rtkit-daemon21:56:292
219499670,5rtkit-daemon2193-21rtkit-daemon21:41:002
9409996418,16cyclictest0-21swapper/222:40:552
51722633,52sleep20-21swapper/219:36:222
9410996225,27cyclictest7483-21crond21:35:453
940899624,52cyclictest0-21swapper/121:48:361
940899624,52cyclictest0-21swapper/120:52:421
940899624,51cyclictest0-21swapper/121:45:451
940999614,40cyclictest0-21swapper/223:35:562
940999614,29cyclictest0-21swapper/221:20:562
940899614,51cyclictest0-21swapper/123:25:531
940899614,17cyclictest0-21swapper/122:37:201
940999604,38cyclictest0-21swapper/223:04:382
221172605,12sleep30-21swapper/320:11:223
221172605,12sleep30-21swapper/320:11:223
940999594,37cyclictest0-21swapper/223:34:342
940999594,37cyclictest0-21swapper/223:34:342
940899594,48cyclictest28044-21kworker/1:222:16:171
940899593,48cyclictest201ktimersoftd/121:01:011
9408995920,24cyclictest0-21swapper/123:44:051
940999585,31cyclictest0-21swapper/223:14:112
9409995818,25cyclictest25927-21gltestperf20:21:072
9409995812,27cyclictest0-21swapper/200:01:022
940899585,47cyclictest0-21swapper/121:50:561
940899585,46cyclictest0-21swapper/121:30:571
940899584,48cyclictest0-21swapper/123:01:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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