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ThreadsTime (s)SpeedupComments
1140.41.0
271.62.02 threads is 2x faster than 1 thread
348.52.9
437.23.8
531.04.5
626.65.3
723.85.9
821.66.5
920.07.0
1018.77.510 threads is 7.5x faster than 1 thread
1117.77.9
1216.88.4There are exactly 12 CPU cores (logical) on test machine
1316.78.4
1416.78.4
1516.88.4
2016.88.4
3016.78.4
4016.88.4
5016.78.4

Graphs

Image Added

Observations

  • There were no failures during the tests (e.g. timeouts or refused connections).
  • Performance increases nearly linearly with increasing thread count, up to the number of CPU cores.
  • Performance stops increasing when the number of threads equals the number of CPU cores (expected).
  • Verbose statistics show that each individual request takes around 0.14 seconds, regardless of thread count (but with multiple CPU cores, requests are really done in parallel).

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View file
nameCpsPerformance.xlsx
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View file
nameperformanceTest.zip
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View file
namePerformance test.postman_collection.json
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Test scripts overview 

- performanceTest.sh
   Get 1000 times single large object from thousands of devices (1000, 2000, ..., 10000) and create metric after each run
- performanceRootTest.sh
   Get 10 times the whole data tree as one object from thousands of devices (1000, 2000, ..., 10000) and create metric after each run
- parallelGetRequestTest.sh
   Get one devices parallel from a database with 10000 devices, executed 10 times sequential

- buildup.sh
   Create the dataspace, create the schemaset, create the anchor and create the root node
- owb-msa221.zip
   The schemaset for the tests
- outNode.json
   The input for the root node creation
- createThousandNode.sh
   Helper script for the database creation
- innerNode.json
   The input for the sub node creation
- createMetric.sh
   Helper script for metric creation