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2025-12-23 - 16:57

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 Tue Dec 23, 2025 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
158549910615,67cyclictest0-21swapper/007:25:190
15854999723,35cyclictest0-21swapper/008:25:210
15854998914,55cyclictest0-21swapper/011:20:180
30342850,1sleep00-21swapper/011:00:320
15854998117,21cyclictest0-21swapper/007:15:190
15854997734,26cyclictest0-21swapper/012:05:200
1585499757,14cyclictest0-21swapper/011:50:120
1585499757,14cyclictest0-21swapper/011:50:120
1585499749,49cyclictest26280-21grep07:35:350
1585799701,47cyclictest7750irq/56-dwc_otg09:30:293
1585499704,46cyclictest18316-21aten_rbpower_vo08:45:220
1585499698,46cyclictest19871-21fschecks_count07:20:250
1585499697,47cyclictest0-21swapper/008:50:190
1585499696,60cyclictest29303-21apt12:15:060
15854996810,32cyclictest18401-21idleruntime-cro11:45:070
306252670,3sleep130612-21munin-run09:20:061
1585499676,38cyclictest13212-21grep10:00:230
1585499673,44cyclictest24015-21uname07:30:330
1585799664,44cyclictest7950irq/56-dwc_otg_11:20:243
15854996635,4cyclictest0-21swapper/011:55:190
155202663,10sleep10-21swapper/107:09:171
1585799651,3cyclictest7950irq/56-dwc_otg_12:15:183
1585499655,57cyclictest515-21aten_rbpower_en10:55:230
1585499652,54cyclictest30449-21switchtime12:15:330
1585499646,45cyclictest0-21swapper/011:10:120
1585499645,39cyclictest23760-21/usr/sbin/munin10:30:300
1585499644,52cyclictest2114-21uniq08:00:220
1585799633,40cyclictest7950irq/56-dwc_otg_07:10:373
1585799631,4cyclictest7950irq/56-dwc_otg_08:40:203
1585799625,39cyclictest7950irq/56-dwc_otg_10:00:313
1585799621,4cyclictest7950irq/56-dwc_otg_08:45:323
1585499626,10cyclictest16281-21/usr/sbin/munin07:10:270
1585499621,24cyclictest0-21swapper/010:05:200
1585799613,40cyclictest7950irq/56-dwc_otg_10:55:343
1585499619,38cyclictest32507-21unixbench_singl12:20:330
1585799601,43cyclictest0-21swapper/309:35:553
1585799601,43cyclictest0-21swapper/309:35:553
1585499606,41cyclictest0-21swapper/012:37:080
1585499604,53cyclictest0-21swapper/009:30:200
15854996014,23cyclictest24226-21aten_rbpower_vo12:00:210
1585799594,38cyclictest7950irq/56-dwc_otg_08:50:233
1585499595,35cyclictest29550-21sort10:45:240
1585499591,39cyclictest0-21swapper/008:30:180
15854995911,33cyclictest0-21swapper/010:25:190
1585799583,11cyclictest0-21swapper/310:10:193
15857995818,38cyclictest26739-21processes12:05:313
1585799581,44cyclictest21735-21cron10:25:073
1585499580,35cyclictest0-21swapper/008:45:070
15857995716,38cyclictest13512-21fschecks_time11:30:243
1585799564,11cyclictest7950irq/56-dwc_otg_07:40:183
1585799561,4cyclictest24955-21users10:30:343
15857995614,39cyclictest794-21aten_rbpower_po12:25:213
1585799561,41cyclictest20664-21unixbench-2d07:20:353
1585499565,40cyclictest3789-21taskset12:31:320
1585499563,38cyclictest0-21swapper/008:55:390
1585799552,40cyclictest7950irq/56-dwc_otg_10:25:303
1585799552,39cyclictest7850irq/56-dwc_otg_08:15:283
1585799552,39cyclictest7850irq/56-dwc_otg_08:15:283
1585799551,4cyclictest23919-21ntp_states07:30:323
1585799551,4cyclictest22111-21ntp_states07:25:293
1585599556,9cyclictest0-21swapper/107:55:191
1585599556,36cyclictest9450irq/48-DMA10:44:551
1585499559,28cyclictest19169-21latency11:45:270
1585499558,39cyclictest0-21swapper/011:17:320
1585499557,45cyclictest27702-21grep07:40:290
1585499555,32cyclictest30372-21chrt09:17:160
1585499552,43cyclictest0-21swapper/008:37:190
15854995524,14cyclictest101ktimersoftd/009:00:200
15854995524,14cyclictest101ktimersoftd/009:00:200
1585499552,39cyclictest0-21swapper/009:50:200
1585499552,38cyclictest0-21swapper/011:25:350
1585499550,43cyclictest0-21swapper/012:25:240
1585799543,7cyclictest0-21swapper/309:05:203
1585799541,45cyclictest0-21swapper/308:35:053
1585499549,37cyclictest0-21swapper/009:14:190
1585499546,36cyclictest0-21swapper/010:50:240
1585499545,33cyclictest0-21swapper/008:13:550
1585799531,41cyclictest7950irq/56-dwc_otg_12:23:273
1585499536,37cyclictest0-21swapper/011:30:380
1585499536,33cyclictest0-21swapper/007:50:490
15854995326,6cyclictest589-21fschecks_time09:25:260
1585499531,35cyclictest8909-21latency_hist08:20:070
1585499531,35cyclictest8909-21latency_hist08:20:070
1585799525,34cyclictest7950irq/56-dwc_otg_11:45:323
1585799522,37cyclictest7950irq/56-dwc_otg_10:50:243
1585799521,46cyclictest5216-21unixbench_singl11:05:343
1585499529,32cyclictest21494-21chrt10:22:160
1585499525,34cyclictest7185-21taskset09:44:030
1585499525,34cyclictest7185-21taskset09:44:030
15854995227,6cyclictest7850irq/56-dwc_otg_11:40:070
15854995226,7cyclictest4163-21wget11:05:200
1585499521,19cyclictest0-21swapper/008:25:070
1585799512,7cyclictest9257-21cut08:20:223
1585799512,45cyclictest29067-21aten_rbpower_cu09:15:193
1585799512,45cyclictest19440-21grep10:15:343
1585799511,7cyclictest11139-21aten_rbpower_cu09:55:213
15857995113,35cyclictest3511-21timerwakeupswit12:30:353
1585499518,28cyclictest0-21swapper/010:16:430
1585499516,31cyclictest0-21swapper/009:35:300
1585499516,31cyclictest0-21swapper/009:35:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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