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Circuits for zkEVM

CI checks

Check out the work in progress specification to learn how it works.

Getting started

To run the same tests as the CI, please use: make test-all.

Running benchmarks

There are currently several benchmarks to run in the workspace in regards to the circuits. All use the DEGREE env var to specify the degree of the K parameter that you want to use for your circuit in the bench process.

  • Keccak Circuit prover benches. -> DEGREE=16 make packed_multi_keccak_bench
  • EVM Circuit prover benches. -> DEGREE=18 make evm_bench.
  • State Circuit prover benches. -> DEGREE=18 make state_bench

You can also run all benchmarks by running: make circuit_benches DEGREE=18.

GH Actions Benchmark Results

Circuit Benchmark Results are accessible here: https://grafana.zkevm-testnet.org/d/vofy8DAVz/circuit-benchmarks?orgId=1

  • circuit_benchmarks panel displays:
    • overall test result
    • timers and system statistics
    • url for downloading prover log and sys stat files
    • clickable sysstats_url element that loads the memory and cpu utilization profiles for the given test

Project Layout

This repository contains several Rust packages that implement the zkevm. The high-level structure of the repository is as follows:

bus-mapping

  • a crate designed to parse EVM execution traces and manipulate all of the data they provide in order to obtain structured witness inputs for the EVM Proof and the State Proof.

circuit-benchmarks

  • Measures performance of each circuit based on proving and verifying time and execution trace parsing and generation for each subcircuit

eth-types

  • Different types helpful for various components of the zkevm, such as execution trace parsing or circuits

external-tracer

  • Generates traces by connecting to an external tracer

gadgets

geth-utils

  • Provides output from latest geth APIs (debug_trace) as test vectors

integration-tests

  • Integration tests for all circuits

keccak256

  • Modules for Keccak hash circuit

mock

  • Mock definitions and methods that are used to test circuits or opcodes

testool

  • CLI that provides tools for testing

zkevm-circuits

  • Main package that contains all circuit logic

zktrie

  • Modules for Merkle Patricia Trie circuit

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