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2025-11-24 - 23:57

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 Mon Nov 24, 2025 12:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2588521800,5sleep11258099cyclictest10:00:381
2588521800,5sleep11258099cyclictest10:00:381
2411221260,2sleep3381ktimersoftd/307:40:283
1257999931,39cyclictest10285-21grep10:25:390
150022890,5sleep314981-21ssh12:05:363
1257999882,41cyclictest0-21swapper/010:50:250
81912830,2sleep00-21swapper/008:25:330
12579998016,45cyclictest28320-21unixbench_singl07:50:350
16672780,2sleep10-21swapper/109:25:281
1257999783,56cyclictest0-21swapper/007:10:100
25672770,5sleep01257999cyclictest08:10:280
107602710,6sleep10-21swapper/107:05:181
201642690,1sleep20-21swapper/209:00:252
12579996821,32cyclictest394-21sh12:30:360
1258199658,5cyclictest7850irq/56-dwc_otg_07:50:352
1258199654,13cyclictest7850irq/56-dwc_otg_07:35:222
1258199652,6cyclictest7850irq/56-dwc_otg_12:25:342
1258199651,8cyclictest10287-21head10:25:392
1258199642,19cyclictest7850irq/56-dwc_otg_12:20:212
1257999642,47cyclictest0-21swapper/009:10:370
270222630,2sleep20-21swapper/211:36:002
62912620,2sleep10-21swapper/111:55:071
1258199628,4cyclictest0-21swapper/211:42:182
1258199628,4cyclictest0-21swapper/211:42:182
12581996222,3cyclictest7850irq/56-dwc_otg_11:10:112
12581996222,3cyclictest7850irq/56-dwc_otg_11:10:112
1257999622,53cyclictest0-21swapper/012:36:150
1257999621,45cyclictest1231-21tail08:05:370
1258199617,4cyclictest7850irq/56-dwc_otg_08:35:192
12581996119,5cyclictest17650-21sh12:10:282
1257999612,47cyclictest15327-21sshd11:20:280
1257999612,41cyclictest0-21swapper/011:10:230
1257999612,41cyclictest0-21swapper/011:10:230
1257999611,44cyclictest0-21swapper/008:00:250
1257999611,38cyclictest27504-21fschecks_time09:15:250
1257999611,38cyclictest0-21swapper/007:30:250
1258199606,10cyclictest7850irq/56-dwc_otg_10:20:072
1258199603,4cyclictest7750irq/56-dwc_otg12:00:232
1257999602,44cyclictest0-21swapper/009:50:260
1257999602,42cyclictest22698-21cat07:35:340
1257999601,7cyclictest0-21swapper/009:30:330
1257999601,7cyclictest0-21swapper/009:30:330
1257999593,50cyclictest0-21swapper/009:00:180
1257999593,35cyclictest0-21swapper/010:20:070
1257999591,41cyclictest0-21swapper/009:55:220
1258199585,4cyclictest0-21swapper/210:10:292
1258199582,14cyclictest0-21swapper/209:50:132
1258099583,9cyclictest7750irq/56-dwc_otg10:55:201
1257999588,34cyclictest0-21swapper/008:35:210
1257999586,12cyclictest0-21swapper/007:45:200
1257999583,39cyclictest18582-21unixbench_multi12:10:380
1257999582,6cyclictest1035-21latency_hist09:25:080
1257999582,41cyclictest0-21swapper/010:30:360
1258199573,4cyclictest0-21swapper/210:50:372
1258199571,15cyclictest17494-21runrttasks09:49:552
1257999571,45cyclictest14377-21memory12:05:280
1257999571,42cyclictest21700-21tr12:15:310
1257999571,39cyclictest28926-21grep12:25:340
1258299561,6cyclictest7950irq/56-dwc_otg_09:40:203
1258199561,14cyclictest0-21swapper/211:35:072
12579995637,9cyclictest23527-21diskmemload11:00:070
12579995636,5cyclictest7850irq/56-dwc_otg_11:40:460
12579995636,5cyclictest7850irq/56-dwc_otg_11:40:460
1257999562,41cyclictest16861-21ssh10:35:330
1257999561,43cyclictest15223-21/usr/sbin/munin07:15:340
1257999561,40cyclictest7064-21ssh11:55:290
1258199557,14cyclictest7850irq/56-dwc_otg_10:20:272
1258199552,11cyclictest0-21swapper/209:25:402
1257999551,40cyclictest8108-21wget09:35:240
1257999551,39cyclictest0-21swapper/008:45:210
1257999551,38cyclictest25273-21modprobe11:35:070
1258199548,10cyclictest0-21swapper/211:49:002
1258199541,6cyclictest11662-21fschecks_time11:15:252
1257999541,40cyclictest0-21swapper/008:15:280
1257999541,40cyclictest0-21swapper/008:15:280
12579995413,30cyclictest32625-21load11:45:300
22602530,1sleep10-21swapper/111:48:591
1258199531,14cyclictest0-21swapper/209:55:252
12579995318,6cyclictest0-21swapper/007:40:180
1257999531,40cyclictest0-21swapper/011:10:070
1257999531,37cyclictest19205-21sed08:55:360
1257999531,34cyclictest0-21swapper/010:10:290
1258199523,6cyclictest7750irq/56-dwc_otg09:15:322
1258199522,9cyclictest0-21swapper/211:03:182
1258199521,6cyclictest7920-21apt-get11:10:072
1257999525,33cyclictest16579-21aten_rbpower_po08:50:190
1257999525,33cyclictest16579-21aten_rbpower_po08:50:190
1257999525,30cyclictest0-21swapper/008:30:330
12582995124,13cyclictest26421-21ssh10:50:183
1257999514,35cyclictest23223-21sort10:45:260
1257999514,35cyclictest23223-21sort10:45:260
1257999511,34cyclictest18821-21irqstats11:25:300
1257999511,34cyclictest0-21swapper/009:41:460
1257999511,11cyclictest0-21swapper/012:20:190
1258199503,17cyclictest0-21swapper/207:10:102
1257999502,36cyclictest0-21swapper/011:03:180
1257999501,37cyclictest19376-21/usr/sbin/munin10:40:320
1257999501,35cyclictest24582-21acpi10:00:190
1257999501,35cyclictest24582-21acpi10:00:190
1257999501,34cyclictest0-21swapper/009:49:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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