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2026-01-08 - 09:23

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 Thu Jan 08, 2026 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
45462980,1sleep10-21swapper/121:16:151
2259099896,62cyclictest0-21swapper/000:00:300
2259099896,49cyclictest0-21swapper/020:50:280
2259099871,25cyclictest0-21swapper/020:55:290
2259099851,67cyclictest5332-21grep00:15:430
2259099841,64cyclictest21158-21grep20:35:270
22590998121,40cyclictest0-21swapper/023:05:330
22590998033,36cyclictest0-21swapper/022:00:280
2259099802,55cyclictest0-21swapper/023:25:150
2259099801,60cyclictest27538-21aten_rbpower_po23:50:290
28052790,5sleep32259399cyclictest00:10:343
22590997922,37cyclictest3930-21aten_rbpower_vo22:45:290
2259099771,56cyclictest29216-21cat22:25:340
22590997614,45cyclictest7656-21/usr/sbin/munin21:25:360
2259099742,57cyclictest0-21swapper/021:20:320
22590997425,31cyclictest23719-21grep20:40:390
2259099732,56cyclictest0-21swapper/020:20:160
2259099721,20cyclictest27378-21tail19:20:410
326832710,5sleep32259399cyclictest22:35:313
2259099712,20cyclictest0-21swapper/019:54:100
249902700,1sleep10-21swapper/120:45:321
249902700,1sleep10-21swapper/120:45:321
2259099701,48cyclictest0-21swapper/021:01:320
2259099672,38cyclictest0-21swapper/023:45:270
2259099672,31cyclictest0-21swapper/019:10:260
2259099672,20cyclictest0-21swapper/021:07:120
2259099671,6cyclictest0-21swapper/000:10:270
2259099662,18cyclictest0-21swapper/023:25:350
22590996621,20cyclictest0-21swapper/021:45:280
2259099661,14cyclictest0-21swapper/000:35:380
22590996512,9cyclictest0-21swapper/021:20:130
290942640,2sleep30-21swapper/322:25:333
2259099648,14cyclictest0-21swapper/023:45:150
22590996441,7cyclictest7750irq/56-dwc_otg19:45:310
22590996325,10cyclictest24436-21sshd19:15:270
22590996325,10cyclictest24436-21sshd19:15:270
2259099632,18cyclictest0-21swapper/020:12:320
22590996321,38cyclictest12842sleep022:36:530
22590996316,8cyclictest0-21swapper/023:00:270
2259099622,20cyclictest0-21swapper/021:44:200
22590996214,9cyclictest8728-21runrttasks22:56:570
133252620,2sleep10-21swapper/123:10:351
133252620,2sleep10-21swapper/123:10:351
2259099619,4cyclictest7850irq/56-dwc_otg_20:05:380
2259099619,13cyclictest0-21swapper/020:25:270
2259099614,17cyclictest0-21swapper/020:48:270
2259099614,17cyclictest0-21swapper/020:48:270
2259099612,7cyclictest11367-21latency_hist00:35:150
22590996114,39cyclictest0-21swapper/023:14:010
22590996114,39cyclictest0-21swapper/023:14:010
2259099611,35cyclictest7736-21grep19:55:440
22590996112,39cyclictest0-21swapper/021:39:210
2259099611,20cyclictest0-21swapper/022:22:490
2259099611,20cyclictest0-21swapper/022:22:490
2259099605,5cyclictest17149-21grep21:50:420
2259099601,33cyclictest15775-21unixbench_multi23:15:420
22590996012,6cyclictest7950irq/56-dwc_otg_21:15:150
22590996012,6cyclictest7950irq/56-dwc_otg_21:15:150
2259099599,10cyclictest0-21swapper/020:01:550
2259099599,10cyclictest0-21swapper/020:01:550
2259099591,15cyclictest20098-21/usr/sbin/munin23:30:340
22590995911,10cyclictest0-21swapper/022:06:120
2259099582,34cyclictest0-21swapper/000:30:150
2259099582,34cyclictest0-21swapper/000:30:150
22590995816,8cyclictest0-21swapper/023:36:280
2259099581,53cyclictest0-21swapper/020:30:360
2259099572,28cyclictest0-21swapper/022:30:320
11612570,2sleep00-21swapper/019:40:270
2259099564,31cyclictest0-21swapper/021:35:150
2259099564,31cyclictest0-21swapper/021:35:150
2259099562,25cyclictest0-21swapper/022:10:250
2259099561,2cyclictest0-21swapper/021:55:410
2259099561,29cyclictest31555-21latency_hist19:35:150
22591995528,6cyclictest31839-21latency_hist21:05:151
2259099551,12cyclictest0-21swapper/022:51:330
2259099549,12cyclictest0-21swapper/020:22:320
2259099542,13cyclictest0-21swapper/019:26:250
2259099541,18cyclictest1125-21runrttasks00:07:190
2259099541,16cyclictest0-21swapper/019:38:510
2259099541,13cyclictest0-21swapper/022:17:180
22590995310,9cyclictest0-21swapper/000:21:200
2259099528,9cyclictest0-21swapper/023:56:290
22591994921,14cyclictest24621-21latency_hist20:45:161
22590994910,9cyclictest0-21swapper/022:42:360
2259199471,13cyclictest0-21swapper/122:55:271
2259299467,24cyclictest0-21swapper/222:55:272
2259299457,25cyclictest0-21swapper/221:24:192
2259299457,24cyclictest0-21swapper/223:00:292
22591994520,5cyclictest8613-21fschecks_count20:00:331
22591994520,5cyclictest8613-21fschecks_count20:00:331
22591994417,11cyclictest1751750wget20:25:291
221792443,33sleep00-21swapper/019:08:270
2259299437,26cyclictest0-21swapper/222:40:212
2259199437,23cyclictest0-21swapper/123:55:211
2259199437,22cyclictest0-21swapper/122:25:281
69302420,4sleep36931-21timerandwakeup00:20:413
2259299427,25cyclictest0-21swapper/222:50:282
22592994213,6cyclictest29107-21latency_hist23:55:152
22591994229,8cyclictest1125-21runrttasks20:50:261
22591994219,5cyclictest29867-21idleruntime-cro21:00:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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