This is an experiment to compare performance of some programming languages.

String Searching

The goal

The program will read the following from standard input

• A long text of length textLength from the first line.
• An integer wordsCount from the second line.
• wordsCount words from the next wordsCount lines. Then print how many words are included in the text.

Configuration

{
  "textLength": 1000000,
  "wordsCount": 10000,
  "wordLength": 7
}

Results

PHP7: 6.151s
Python3: 7.015s
Nodejs: 8.053s
C++: 11.121s

Prime numbers

The goal

The program will read the following from standard input

• An integer count from the first line.
• count integers between min and max from the next count lines. Then print how many integer is a prime number.

Configuration

{
  "count": 1000000,
  "min": 100000,
  "max": 900000
}

Results

C++: 1.699s
Nodejs: 2.961s
Python3: 7.254s
PHP7: 13.062s

Running the tests yourself

• You should have a Unix system with g++, python3, PHP and node installed.
• Run ./run-all script.

Generating inputs with other configurations

• run npm i to install dependencies if you want to regenerate the random inputs.
• edit the config.json file.
• run ./generate-all to generate new inputs.
• run ./run-all.