Benchmarks for popular implementations of contract standards.

⚠️ The gas usage shown in the benchmarks doesn't take into account the 21k gas added to every ethereum transaction

• ERC20 0.8.24
• ERC721 0.8.24
• ERC1155 0.8.24

You can see benchmarks for different compiler versions on benchmarks/

The file data.json provides a json format of all the data used in the benchmarks. That file is generated by running the command make json.

We create a minimal implementation of each contract that uses the specific implementation as a base. Then for each of the methods we want to benchmark, we create a test contract that set the environment in the setUp function and each test only runs the specific function we're benchmarking, trying to reduce the noise as much as possible.

The gas usage shown here is not 100% accurate, but it's good enough to be able to compare the gas usage between the implementations.

All tests are generated using the template files in templates

All tables in the readmes are generated using the scripts in scripts

There are many ways to contribute to this project

• Add a snapshot for the latest solc version
• Add or suggest a contract implementation (the instructions for adding are below)
• Update a contract implementation
• Enhance the codegen scripts

• Install foundry http://getfoundry.sh
• You'll need python 3 installed to run the scripts under the scripts folder
• Install the python dependencies pip install -r requirements.txt
• git clone --recurse-submodules https://github.com/alephao/solidity-benchmarks.git

1. Create a minimal implementation on src/, the contract name and file name should follow the convention <Contract Type>_<Variation>.
2. Implement the common interface that is in other files of the same contract type (for ERC721 for example, it's mint and safeMint functions)
3. Add an entry to the contracts.<contract type>.variations property on test-cases.yml, following the examples there.
4. Add an entry to scripts/.py's variants var following the examples there. It should map the variant name you used in the contract like ERC721_<Variant> to the name you want to appear on the table. E.g.:
5. In case you added an ERC721 that's also ERC2309 compliant, add a another contract in the same file following the convention <Contract Type>_<Variation>_ERC2309, and add an entry to the contracts.ERC721.ERC2309Variations in the test-cases.yml

variations = {
    "OZ": "OpenZeppelin",
    "OZEnumerable": "OpenZeppelin Enumerable",
    "OZConsecutive": "OpenZeppelin Consecutive",
    "Solady": "Solady",
    "Solmate": "Solmate",
    "A": "ERC721A",
    "B": "ERC721B",
    "K": "ERC721K",
}

5. Run the following commands:

make codegen
make snapshot
make readme
make json

6. Add the contract to the list at the top of the <Contract Type>.md. (If you added a new ERC721, update the list on top of ERC721.md)

ERC20

• 0.8.20 or 0.8.20-ir
• 0.8.21 or 0.8.21-ir
• 0.8.22 or 0.8.22-ir
• 0.8.23 or 0.8.23-ir
• 0.8.23 or 0.8.24-ir

ERC721

• 0.8.20 or 0.8.20-ir
• 0.8.21 or 0.8.21-ir
• 0.8.22 or 0.8.22-ir
• 0.8.23 or 0.8.23-ir
• 0.8.24 or 0.8.24-ir

ERC1155

• 0.8.20 or 0.8.20-ir
• 0.8.21 or 0.8.21-ir
• 0.8.22 or 0.8.22-ir
• 0.8.23 or 0.8.23-ir
• 0.8.24 or 0.8.24-ir