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2026-03-30 - 17:13

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #6

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.
Unexpectedly long latencies may be caused by SMIs
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 rack0slot6s.osadl.org (updated Mon Mar 30, 2026 00:46:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32400592268261,4sleep150-21swapper/1519:09:267
32400592268261,4sleep150-21swapper/1519:09:257
32367362262198,32sleep160-21swapper/1619:05:068
32367362262198,32sleep160-21swapper/1619:05:068
32400622255248,4sleep170-21swapper/1719:09:289
32400622255248,4sleep170-21swapper/1719:09:279
32397812248241,4sleep120-21swapper/1219:06:024
32397812248241,4sleep120-21swapper/1219:06:024
32397782247238,5sleep90-21swapper/919:05:5919
32397782247238,5sleep90-21swapper/919:05:5919
32397542245238,4sleep80-21swapper/819:05:3818
32397542245238,4sleep80-21swapper/819:05:3718
32399332239219,12sleep30-21swapper/319:07:5413
32399332239219,12sleep30-21swapper/319:07:5413
32398042233214,12sleep100-21swapper/1019:06:212
32398042233214,12sleep100-21swapper/1019:06:212
32397962233212,13sleep20-21swapper/219:06:1312
32397962233212,13sleep20-21swapper/219:06:1312
32398942232212,12sleep180-21swapper/1819:07:2910
32398942232212,12sleep180-21swapper/1819:07:2910
32397982232211,13sleep40-21swapper/419:06:1514
32397982232211,13sleep40-21swapper/419:06:1514
32398492227207,13sleep10-21swapper/119:06:521
32398492227207,13sleep10-21swapper/119:06:521
32398212227207,12sleep60-21swapper/619:06:3716
32398212227207,12sleep60-21swapper/619:06:3616
32400262226206,13sleep110-21swapper/1119:09:023
32400262226206,13sleep110-21swapper/1119:09:023
32399902226206,12sleep70-21swapper/719:08:3817
32399902226206,12sleep70-21swapper/719:08:3817
32399832225185,12sleep00-21swapper/019:08:310
32399832225185,12sleep00-21swapper/019:08:310
32398462221201,12sleep190-21swapper/1919:06:5011
32398462221201,12sleep190-21swapper/1919:06:5011
32399432220201,12sleep130-21swapper/1319:08:045
32399432220201,12sleep130-21swapper/1319:08:045
32398532217201,9sleep50-21swapper/519:06:5615
32398532217201,9sleep50-21swapper/519:06:5615
32397832209190,12sleep140-21swapper/1419:06:046
32397832209190,12sleep140-21swapper/1419:06:046
324051499766,29cyclictest0-21swapper/1921:17:0311
324044599618,36cyclictest0-21swapper/000:32:030
324046999330,33cyclictest0-21swapper/719:10:5917
324046999330,33cyclictest0-21swapper/719:10:5917
3240500992828,0cyclictest0-21swapper/1519:10:597
3240500992828,0cyclictest0-21swapper/1519:10:597
3240495992727,0cyclictest0-21swapper/1423:08:596
3240510992620,6cyclictest0-21swapper/1819:15:2510
324051099250,0cyclictest0-21swapper/1819:11:1310
324051099250,0cyclictest0-21swapper/1819:11:1310
324047199241,21cyclictest472371-21CPU18
324051499230,23cyclictest0-21swapper/1923:08:5911
3240510992323,0cyclictest0-21swapper/1800:19:2710
3240475992323,0cyclictest0-21swapper/922:48:5419
324047199230,23cyclictest0-21swapper/823:07:5818
324046999230,12cyclictest0-21swapper/723:07:4817
3240514992220,1cyclictest472371-21CPU11
324051099221,20cyclictest472370-21CPU10
324051499210,21cyclictest0-21swapper/1919:15:3311
324051499210,21cyclictest0-21swapper/1919:10:5511
324051499210,21cyclictest0-21swapper/1919:10:5511
324051499210,21cyclictest0-21swapper/1900:19:2311
3240504992120,1cyclictest0-21swapper/1600:19:268
324049599210,21cyclictest3244528-21runrttasks19:14:376
324049599210,21cyclictest3244528-21runrttasks19:14:376
324047599210,21cyclictest0-21swapper/919:15:3019
324047599210,21cyclictest0-21swapper/919:11:0419
324047599210,21cyclictest0-21swapper/919:11:0419
324047199210,21cyclictest0-21swapper/819:11:1618
324047199210,21cyclictest0-21swapper/819:11:1618
324047199210,20cyclictest0-21swapper/821:20:1618
3240458992118,2cyclictest7505-21CPU14
3240458992118,2cyclictest7505-21CPU14
3240451992117,4cyclictest0-21swapper/219:16:0612
324045199211,1cyclictest472371-21CPU12
324045199211,1cyclictest472371-21CPU12
324051099200,20cyclictest0-21swapper/1823:20:3210
324051099200,20cyclictest0-21swapper/1821:20:1610
324051099200,20cyclictest0-21swapper/1800:03:0010
324049299200,19cyclictest3242396-21perl19:10:145
324049299200,19cyclictest3242396-21perl19:10:135
324049099200,1cyclictest472371-21CPU4
324049099200,1cyclictest472371-21CPU4
324048199200,19cyclictest0-21swapper/1023:08:592
324048199200,17cyclictest0-21swapper/1019:10:162
324048199200,17cyclictest0-21swapper/1019:10:162
3240475992020,0cyclictest0-21swapper/923:07:4819
3240475992020,0cyclictest0-21swapper/900:20:1519
3240475992020,0cyclictest0-21swapper/900:03:0019
324047599200,20cyclictest0-21swapper/920:05:1619
324047599200,1cyclictest472370-21CPU19
324047599200,0cyclictest0-21swapper/921:05:1719
324047599200,0cyclictest0-21swapper/900:19:2619
3240471992020,0cyclictest0-21swapper/800:19:2218
324047199200,0cyclictest0-21swapper/819:15:0418
3240465992018,2cyclictest3376851-21needreboot21:45:1716
324046199200,0cyclictest0-21swapper/519:15:4815
324046199200,0cyclictest0-21swapper/519:11:5315
324046199200,0cyclictest0-21swapper/519:11:5315
324045899209,11cyclictest0-21swapper/421:17:5914
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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