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2023-12-08 - 23:39

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #4

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 792 highest latencies:
System rack7slot4s.osadl.org (updated Fri Dec 08, 2023 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2727599633,33cyclictest28324-21ssh12:05:190
27275996313,25cyclictest12-21ksoftirqd/009:05:190
2727599578,12cyclictest0-21swapper/009:10:210
2726099553,13cyclictest12-21ksoftirqd/010:10:210
2727599502,39cyclictest9051-21ssh10:15:190
27275994615,18cyclictest10109-21diskmemload12:10:220
2726099461,20cyclictest12-21ksoftirqd/007:15:180
2727599441,32cyclictest24018-21ssh10:25:210
2727599432,30cyclictest27015-21ssh10:05:200
2726099415,8cyclictest131rcu_preempt09:50:200
27275994021,14cyclictest14167-21apt-get09:35:200
2727599391,31cyclictest25018-21ssh09:20:220
27275993824,7cyclictest29314-21apt-get09:45:180
27275993310,12cyclictest0-21swapper/010:35:190
2726099334,8cyclictest12-21ksoftirqd/008:55:220
2727599323,23cyclictest3027-21ssh12:30:150
27275993215,12cyclictest14659-21apt-get08:40:200
2726099326,12cyclictest12-21ksoftirqd/012:36:430
2726099320,8cyclictest12-21ksoftirqd/008:05:200
27275993115,10cyclictest0-21swapper/011:10:200
2726099312,19cyclictest13768-21ssh11:20:210
27275993019,5cyclictest4306-21apt-get07:20:200
2727599292,9cyclictest0-21swapper/009:40:210
27275992923,2cyclictest13722-21apt-get07:30:180
27275992921,4cyclictest23931-21apt-get08:50:200
27275992915,10cyclictest0-21swapper/011:05:200
2726099298,9cyclictest12-21ksoftirqd/010:30:170
2726099297,6cyclictest12-21ksoftirqd/012:00:200
2726099291,14cyclictest12-21ksoftirqd/009:00:170
2724999296,19cyclictest0-21swapper/012:15:200
2727599285,15cyclictest0-21swapper/010:20:220
27275992822,3cyclictest19307-21apt-get08:45:200
27260992812,9cyclictest32189-21sh10:50:310
27260992811,10cyclictest27254-21switchtime08:15:370
27275992720,4cyclictest10678-21apt-get11:55:210
2726099279,3cyclictest131rcu_preempt08:35:190
27260992714,5cyclictest3849-21unixbench_multi07:50:400
27249992718,4cyclictest11547-21kworker/u8:011:00:210
27275992613,10cyclictest13830-21cron09:35:010
2727599261,21cyclictest22356-21ssh12:20:220
27275992611,11cyclictest19504-21apt-get10:00:240
2726099263,9cyclictest0-21swapper/009:55:200
2726099263,9cyclictest0-21swapper/008:20:190
27260992611,7cyclictest12-21ksoftirqd/009:15:180
27260992610,9cyclictest14896-21kthreadcore10:40:330
27260992610,8cyclictest4059-21grep09:25:390
27249992623,2cyclictest19775-21kthreadcore11:40:320
2727599254,8cyclictest0-21swapper/011:49:280
27275992518,5cyclictest26801-21unixbench_multi11:25:480
27275992514,8cyclictest9473-21apt-get08:00:230
2726099252,9cyclictest0-21swapper/011:15:210
2727599246,4cyclictest0-21swapper/012:25:360
2727599244,4cyclictest12-21ksoftirqd/011:53:230
2727599244,16cyclictest0-21swapper/007:45:210
2726099249,6cyclictest23401-21irqcore07:40:310
2726099247,9cyclictest7728-21cpu11:35:190
2726099242,9cyclictest0-21swapper/008:30:050
27260992412,4cyclictest0-21swapper/008:00:010
2726099240,17cyclictest12288-21ls07:25:340
2726099232,8cyclictest0-21swapper/008:10:220
27260992313,4cyclictest1943-21kthreadcore08:25:260
27260992211,5cyclictest3594-21ssh10:55:140
27260992211,5cyclictest0-21swapper/011:30:270
2726099221,14cyclictest29889-21kthreadcore07:10:320
2726099216,4cyclictest0-21swapper/010:45:210
27260992112,3cyclictest19553-21cut07:35:290
2724999134,6cyclictest27251-21ls07:10:010
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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