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2026-06-13 - 01:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #3

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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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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack7slot3s.osadl.org (updated Fri Jun 12, 2026 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1699821790,5sleep32581199cyclictest10:01:333
2580899912,26cyclictest0-21swapper/010:55:140
2580899912,26cyclictest0-21swapper/010:55:140
25808998431,3cyclictest0-21swapper/011:35:290
16032780,2sleep30-21swapper/307:30:303
292032740,5sleep02580899cyclictest09:38:390
2580999733,53cyclictest12202-21ssh12:29:231
2580999722,41cyclictest0-21swapper/112:35:261
16302720,1sleep10-21swapper/111:00:171
2580999702,49cyclictest8050irq/56-dwc_otg_10:20:011
2580999701,53cyclictest22175-21ssh10:08:081
2580999691,48cyclictest7850irq/56-dwc_otg10:46:271
2580999691,47cyclictest16850-21/usr/sbin/munin10:40:301
2580999689,40cyclictest29911-21seq09:39:521
2580999671,50cyclictest29453-21apt-get07:20:131
25809996613,41cyclictest29466-21latency_hist10:55:021
2580999657,42cyclictest7850irq/56-dwc_otg08:40:151
2580999655,44cyclictest8050irq/56-dwc_otg_11:33:011
2580999653,44cyclictest8050irq/56-dwc_otg_08:13:581
2580999642,43cyclictest0-21swapper/111:12:161
2580999641,52cyclictest22698-21ssh12:02:281
2580999641,4cyclictest7850irq/56-dwc_otg10:20:221
2580999641,48cyclictest125-21systemd-journal07:38:241
2580999641,37cyclictest0-21swapper/112:24:361
176422640,4sleep2301ktimersoftd/208:15:212
2580999633,43cyclictest7850irq/56-dwc_otg07:40:201
2580999631,43cyclictest21667-21chrt11:23:361
197982630,1sleep30-21swapper/312:38:053
2580999624,43cyclictest18088-21ssh11:19:471
2580999623,44cyclictest7850irq/56-dwc_otg08:05:201
2580999622,43cyclictest0-21swapper/110:11:041
25808996232,5cyclictest7950irq/56-dwc_otg_08:40:310
2580999614,41cyclictest8050irq/56-dwc_otg_09:45:261
2580999613,43cyclictest7058-21ssh09:12:151
2580999613,39cyclictest32485-21http12:15:011
2580999612,39cyclictest0-21swapper/109:32:341
2580999611,4cyclictest7850irq/56-dwc_otg09:40:191
2580999611,48cyclictest0-21swapper/110:55:141
2580999611,48cyclictest0-21swapper/110:55:141
25808996139,5cyclictest12960-21wget12:30:140
2580999604,31cyclictest8050irq/56-dwc_otg_08:50:241
2580999604,31cyclictest8050irq/56-dwc_otg_08:50:241
2580999603,49cyclictest5351-21ssh11:41:571
2580999603,37cyclictest8050irq/56-dwc_otg_11:30:021
2580999603,37cyclictest8050irq/56-dwc_otg_11:30:021
2580999602,44cyclictest0-21swapper/109:29:211
2580999601,5cyclictest4256-21cron12:20:011
2580999601,39cyclictest6347-21df_inode07:45:171
25808996019,24cyclictest23269-21idleruntime-cro10:10:010
2580999593,53cyclictest22715-21aten_rbpower_vo08:30:161
2580999592,38cyclictest0-21swapper/107:35:021
2580999591,44cyclictest9652-21sed09:15:231
25808995935,7cyclictest7850irq/56-dwc_otg09:10:010
2580999584,39cyclictest8050irq/56-dwc_otg_09:20:441
2580999583,41cyclictest8050irq/56-dwc_otg_10:40:011
2580999583,35cyclictest6432-21/usr/sbin/munin09:50:201
2580999583,31cyclictest7850irq/56-dwc_otg12:32:191
2580999582,44cyclictest32602-21grep11:35:291
2580999582,43cyclictest8050irq/56-dwc_otg_09:59:381
2580999581,45cyclictest0-21swapper/110:28:581
2580999581,42cyclictest28063-21runrttasks08:45:151
2580899581,37cyclictest0-21swapper/010:35:180
2581199573,14cyclictest4077-21ssh10:25:113
2581099577,28cyclictest0-21swapper/211:45:142
2580999573,39cyclictest0-21swapper/110:02:071
2580999571,40cyclictest0-21swapper/112:08:481
2580999571,39cyclictest0-21swapper/111:50:241
2580899572,53cyclictest0-21swapper/009:25:130
2580899572,35cyclictest0-21swapper/008:55:120
2580999563,41cyclictest0-21swapper/108:56:231
2580999563,36cyclictest518-21rs:main1
2580999562,8cyclictest0-21swapper/108:00:111
2580999561,34cyclictest0-21swapper/109:09:411
2580999561,2cyclictest0-21swapper/110:31:301
2580899567,14cyclictest0-21swapper/007:35:160
2580899563,50cyclictest3463-21unixbench_singl09:45:290
2580999552,41cyclictest0-21swapper/107:16:321
25809995510,40cyclictest26993-21unixbench_singl07:10:291
25808995538,5cyclictest26925-21latency_hist11:30:020
25808995538,5cyclictest26925-21latency_hist11:30:020
2580899553,29cyclictest0-21swapper/011:45:120
25808995532,5cyclictest31906-21cron10:20:010
25808995529,2cyclictest0-21swapper/010:30:120
25808995524,19cyclictest11759-21aten_rbpower_cu11:50:160
2580899552,28cyclictest0-21swapper/009:10:120
2581199547,7cyclictest8050irq/56-dwc_otg_09:50:163
2580999545,30cyclictest0-21swapper/111:48:231
2580899542,44cyclictest0-21swapper/008:50:020
25808995420,4cyclictest5998-21latency_hist07:45:020
25808995420,4cyclictest0-21swapper/009:30:130
25808995420,22cyclictest7950irq/56-dwc_otg_10:00:200
2580899541,34cyclictest0-21swapper/011:00:250
124552540,2sleep20-21swapper/209:19:132
25942530,2sleep30-21swapper/311:39:363
2580999531,2cyclictest0-21swapper/111:55:121
2580899536,37cyclictest0-21swapper/008:00:140
2580899531,30cyclictest4463-21ssh10:25:180
2580999523,36cyclictest7850irq/56-dwc_otg07:55:271
25808995229,5cyclictest29565-21wget07:20:160
25808995227,5cyclictest25547-21aten_rbpower_vo10:50:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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