This is a tool to compare the performance and memory usage of various Java Map implementations based on a comparison of C++ hash maps by Tessil, which in turn was based on prior work by Nick Welch.
I modified the approach slightly to allow any Map implementation
because I also intend to compare tree-based implementations. This also
meant skipping the test that relies on the method: void reserve( size_type n ).
To run a benchmark of JDK maps run:
mvn -Pbenchmark clean install
This will create (or overwite) a file called data.tsv. To generate
the graphs, run:
R --no-save < analysis.R
This will read the file generated in the previous step and generate
charts in the images directory.
This benchmark was run with a 2.9 GHz Quad-Core Intel Core i7 processor and 16 GB 2133 MHz LPDDR3 RAM. Each benchmark was only run once.
Copyright 2020 Carlos Macasaet
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.