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Serializer Benchmark

This project aims to compare the performance of some most used and few less known JSON serialization libraries for PHP.

Inspiration

This benchmark attempts to compare serialization libraries performance-wise. All of the libraries have their own features, support different formats, added magic and other stuff, but for the sake of simplicity it was decided to simplify sample data to fit all of them.

The core of benchmarking set was implemented by Tales Santos, the author of TSantos serializer.

Instalation

Clone this repository in your workspace

git clone https://github.com/tsantos84/serializers-benchmarking.git

Install the application's dependencies

Using system installed composer

composer install -a --no-dev

or using composer in docker container:

docker run --rm --interactive --tty -v $(pwd):/app composer install -a --no-dev

Execution

The benchmark application can be executed as is with PHP 7.1 and above.

php vendor/bin/phpbench run --warmup=1 --report=tsantos

If you don't have PHP of required version you may use suitable Docker PHP image (PHP 7.1-cli-alpine).

docker run --rm -it -v $(pwd):/opt -w /opt php:7.1-cli-alpine php vendor/bin/phpbench run --warmup=1 --report=tsantos --group=serialize

Application parameters

There're 2 available benchmark groups:

serialize - run serialization benchmark only
deserialize - run deserialization benchmark only

php vendor/bin/phpbench run --warmup=1 --report=tsantos --group=serialize

Vendors

It is possible to see all the serializer libraries available in this benchmark and its version:

php vendor/bin/phpbench vendors

Benchmark Tool

This project was written based on PHPBench. Please, refer to its documentation page for further reading about all its runner options.

Blackfire Integration

Blackfire is a excelent tool to profile PHP applications and helps you to discover some bottleneck points. This project allows you to run benchmarks and send the call-graph to Blackfire's server so you can see how each library works internally.

Installation

In order to start using Blackfire, you first need to sign up on Blackfire.io and then you'll have access to your credentials.

Agent

Creates a new docker container with the Blackfire's Agent:

docker run -d \
  --name="blackfire" \
  -e BLACKFIRE_SERVER_ID={YOUR_BLACKFIRE_SERVER_ID_HERE} \
  -e BLACKFIRE_SERVER_TOKEN={YOUR_BLACKFIRE_SERVER_TOKEN_HERE} \
  blackfire/blackfire

PHP Executable

Create a custom PHP image with Blackfire extension installed and enabled:

cd /path/to/serializer-benchmark
docker build -t benchmark -f Dockerfile.blackfire .

Running the application

Now you can run the application using the PHP image create on step before:

docker run \
  --rm \
  -it \
  -v $(pwd):/opt \
  -w /opt \
  -e BLACKFIRE_CLIENT_ID={YOUR_BLACKFIRE_CLIENT_ID_HERE} \
  -e BLACKFIRE_CLIENT_TOKEN={YOUR_BLACKFIRE_CLIENT_TOKEN_HERE} \
  --link blackfire:blackfire \
  benchmark php vendor/bin/phpbench run --warmup=1 --report=tsantos --group=serialize --executor=blackfire

Docker Compose

Instead of running each container manually, you can use docker-compose to run the benchmarks. To accomplish this you need to create a copy of the docker-compose.yaml.dist file:

cp docker-compose.yml.dist docker-compose.yml

and run one of the following commands:

# perform serialization benchmark
docker-compose run --rm bench_serialize

# perform deserialization benchmark
docker-compose run --rm bench_deserialize

# perform serialization benchmark with Blackfire enabled
docker-compose run --rm bench_serialize_blackfire \
    -e BLACKFIRE_SERVER_ID={YOUR_BLACKFIRE_SERVER_ID} \
    -e BLACKFIRE_SERVER_TOKEN={YOUR_BLACKFIRE_SERVER_TOKEN} \
    -e BLACKFIRE_CLIENT_ID={YOUR_BLACKFIRE_CLIENT_ID} \
    -e BLACKFIRE_CLIENT_TOKEN={YOU_BLACKFIRE_CLIENT_TOKEN}

# perform deserialization benchmark with Blackfire enabled
docker-compose run --rm bench_deserialize_blackfire \
    -e BLACKFIRE_SERVER_ID={YOUR_BLACKFIRE_SERVER_ID} \
    -e BLACKFIRE_SERVER_TOKEN={YOUR_BLACKFIRE_SERVER_TOKEN} \
    -e BLACKFIRE_CLIENT_ID={YOUR_BLACKFIRE_CLIENT_ID} \
    -e BLACKFIRE_CLIENT_TOKEN={YOU_BLACKFIRE_CLIENT_TOKEN}

As you have your own copy of the docker-compose.yml file, you can define those environment variables there and save time when run the benchmarks with Blackfire enabled.

Note

By running the benchmark with Blackfire enabled you'll realize that the mean time will increase substantially. This behavior is expected because the Blackfire needs to introspect in your code and hence affects the benchmark metrics.

Contribution

Want to see more libraries in this benchmark? You can easily add new benchmarks by implementing the BenchInterface interface or extending the AbstractBench class which has a lot of help methods. Please, take a look at some of existing bench classes and you'll see how you can write your own benchmark.

tsantos84/serializer-benchmark

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