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2025-01-25 - 05:54

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #2

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 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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack7slot2s.osadl.org (updated Sat Jan 25, 2025 00:48:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
85052799360939,36043cyclictest0-21swapper/023:10:230
85052799360939,36043cyclictest0-21swapper/023:10:220
850527993608530,36037cyclictest0-21swapper/022:30:260
850527993608530,36037cyclictest0-21swapper/022:30:250
85052799360727,36043cyclictest0-21swapper/021:10:210
850527993186749,31798cyclictest0-21swapper/019:45:210
850527993186749,31798cyclictest0-21swapper/019:45:200
85052899334232,67cyclictest0-21swapper/119:11:081
85052899334232,67cyclictest0-21swapper/119:11:081
85052899322204,69cyclictest0-21swapper/123:01:341
85052899321222,57cyclictest0-21swapper/122:36:291
85052899315227,53cyclictest0-21swapper/120:36:521
85052899312223,56cyclictest0-21swapper/100:10:301
85052899312210,64cyclictest0-21swapper/122:59:551
85052899311224,54cyclictest0-21swapper/120:31:241
85052899310219,57cyclictest0-21swapper/121:26:581
85052899310219,57cyclictest0-21swapper/121:26:581
85052899310217,53cyclictest0-21swapper/122:30:211
85052899310217,53cyclictest0-21swapper/122:30:211
85052899309214,61cyclictest0-21swapper/122:17:551
85052899309214,61cyclictest0-21swapper/122:17:551
85052899307226,48cyclictest0-21swapper/120:05:201
85052899307226,48cyclictest0-21swapper/120:05:191
85052899307213,58cyclictest0-21swapper/119:16:481
85052899307213,58cyclictest0-21swapper/119:16:481
85052899306223,51cyclictest0-21swapper/120:15:231
85052899306216,55cyclictest0-21swapper/122:00:211
85052899306209,56cyclictest181rcuog/000:00:361
85052899306209,56cyclictest181rcuog/000:00:351
85052899304232,35cyclictest855194-21ntpq19:35:591
85052899304225,46cyclictest0-21swapper/121:32:031
85052899304218,52cyclictest0-21swapper/121:51:581
85052899304218,52cyclictest0-21swapper/121:51:581
85052899304182,82cyclictest0-21swapper/120:20:131
85052899303265,16cyclictest331rcuop/120:00:171
85052899303265,16cyclictest331rcuop/120:00:171
85052899303186,73cyclictest0-21swapper/119:50:561
85052899303186,73cyclictest0-21swapper/119:50:561
85052899300216,46cyclictest0-21swapper/121:35:421
85052899300216,46cyclictest0-21swapper/121:35:421
85052899299198,61cyclictest0-21swapper/119:42:221
85052899299198,61cyclictest0-21swapper/119:42:211
85052899298240,16cyclictest181rcuog/020:10:391
85052899298215,47cyclictest0-21swapper/122:26:051
85052899298215,47cyclictest0-21swapper/122:26:041
85052899297222,15cyclictest181rcuog/023:35:381
85052899297212,50cyclictest0-21swapper/121:15:011
85052899296199,62cyclictest0-21swapper/120:56:551
85052899296199,62cyclictest0-21swapper/120:56:551
85052899294268,14cyclictest0-21swapper/123:41:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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