zk-benchmarks/hash/plonky2/bench

Plonky2 Hash Circuit Benchmarking

• The plonky2/bench contains the following hash circuit benchamrking code: sha256, keccak256 and poseidon.
• The code for sha256 is taken from plonky2-sha256.
• The keccak hash has two different implementation taken from plonky2-keccak256 and Polygon-zero zk_evm.
• The build.sh script builds the whole code. You need rust nightly version to build the code. The script overrides the default rust version to nightly.
• run.sh and run_tree.sh runs the benchmark. (run.sh for sha256, keccak, and keccak-polygon and run_tree.sh for poseidon)
• Benchmarks can be parameterized using environment variables. By convention, we start the names of these environment variables with the ZKBENCH_ prefix.
• By default the run.sh will run the sha256 benchmark over 256 Bytes of data. other hashes can be run by settig the environment variables accordingly.
• By default the run_tree.sh will run the poseidon benchmark over tree depth 4.
• Additional files bench.cfg and bench_tree.cfg specifies the configurations and parameters.