Drill

Drill is a HTTP load testing application written in Rust. The main goal for this project is to build a really lightweight tool as alternative to other that require JVM and other stuff.

You can write benchmark files, in YAML format, describing all the stuff you want to test.

It was inspired by Ansible syntax because it is really easy to use and extend.

Here is an example for benchmark.yml:

```yaml

threads: 4 base: 'http://localhost:9000' iterations: 5 rampup: 2

plan: - name: Include comments include: comments.yml

• name: Fetch users request: url: /api/users.json

• name: Fetch organizations request: url: /api/organizations

• name: Fetch account request: url: /api/account assign: foo

• name: Fetch manager user request: url: /api/users/{{ foo.manager_id }}

• name: Assign values assign: key: bar value: "2"

• name: Fetch user from assign request: url: /api/users/{{ bar }}

• name: Fetch some users request: url: /api/users/{{ item }} with_items:

  • 70
  • 73
  • 75

• name: Fetch some users by hash request: url: /api/users/{{ item.id }} with_items:

  • { id: 70 }
  • { id: 73 }
  • { id: 75 }

• name: Fetch some users from CSV request: url: /api/users/contacts/{{ item.id }} withitemsfrom_csv: ./fixtures/users.csv

• name: POST some crafted JSONs stored in CSV request: url: /api/transactions method: POST body: '{{ item.txn }}' headers: Content-Type: 'application/json' withitemsfromcsv: filename: ./fixtures/transactions.csv quote_char: "\'"

• name: Fetch no relative url request: url: http://localhost:9000/api/users.json

• name: Support for POST method request: url: /api/users method: POST body: foo=bar&arg={{ bar }}

• name: Login user request: url: /login?user=example&password=3x4mpl3

• name: Fetch counter request: url: /counter assign: memory

• name: Fetch counter request: url: /counter assign: memory

• name: Fetch endpoint request: url: /?counter={{ memory.counter }}

• name: Reset counter request: method: DELETE url: /

• name: Custom headers request: url: /admin headers: Authorization: Basic aHR0cHdhdGNoOmY= X-Foo: Bar ```

As you can see, you can play with interpolations in different ways. This will let you specify a benchmark with different requests and dependencies between them.

If you want to know more about the benchmark file syntax, read this

Install

The easiest way right now is to install with cargo:

cargo install drill drill --benchmark benchmark.yml --stats

or download the source code and compile it:

git clone git@github.com:fcsonline/drill.git && cd drill cargo build --release ./target/release/drill --benchmark benchmark.yml --stats

Note: You will need to install libssl-dev and pkg-config packages.

Demo

Features

This is the list of all features supported by the current version of drill:

• Multi thread: run your benchmarks setting as many concurrent threads as you want.
• Multi iterations: specify the number of iterations you want to run the benchmark.
• Ramp-up: specify the amount of time it will take drill to start all threads.
• Dynamic urls: execute requests with dynamic interpolations in the url, like /api/users/{{ item }}
• Dynamic headers: execute requests with dynamic headers. Example: headers.yml
• Request dependencies: create dependencies between requests with assign and url interpolations.
• Split files: organize your benchmarks in multiple files and include them.
• CSV support: read CSV files and build N requests fill dynamic interpolations with CSV data.
• HTTP methods: build request with different http methods like GET, POST, PUT, PATCH, HEAD or DELETE.
• Cookie support: create benchmarks with sessions because cookies are propagates between requests.
• Stats: get nice statistics about all the requests. Example: cookies.yml
• Thresholds: compare the current benchmark performance against a stored one session and fail if a threshold is exceeded.

Test it

Go to the example directory and you'll find a README how to test it in a safe environment.

Disclaimer: We really recommend not to run intensive benchmarks against production environments.

Command line interface

Full list of cli options, which is available under drill --help

``` drill 0.6.0 HTTP load testing application written in Rust inspired by Ansible syntax

USAGE: drill [OPTIONS] --benchmark

FLAGS: -h, --help Prints help information --no-check-certificate Disables SSL certification check. (Not recommended) --relaxed-interpolations Do not panic if an interpolation is not present. (Not recommended) -s, --stats Shows request statistics -q, --quiet Skips output of individual request statistics -n, --nanosec Shows statistics in nanoseconds -V, --version Prints version information

OPTIONS: -b, --benchmark Sets the benchmark file -c, --compare Sets a compare file -r, --report Sets a report file -t, --threshold Sets a threshold value in ms amongst the compared file

```

Roadmap

• Complete and improve the interpolation engine
• Add writing to a file support

Contribute

This project started as a side project to learn Rust, so I'm sure that is full of mistakes and areas to be improve. If you think you can tweak the code to make it better, I'll really appreciate a pull request. ;)