CKB Dev Log 2025-03-18

[Officeyutong]

Features

CKB VM

Aarch64 Assembly Performance Optimization

Implemented and benchmarked 4 optimizations for the Aarch64 RISC-V handler in ckb-vm. Details in the Benchmark report.

Progress: Implementing fuzzing tests; upstream PRs are in progress.

SP1 zkVM On-Chain Verification

Completed feasibility study for running SP1 zkVM verification natively on CKB. Find details in the analysis Feasibility, Risk and Work Estimation for SP1 Verifier on CKB-VM and the benchmarks.

Next: Verifier optimization with the bn254 library for RISC-V.

BN128 Library for RISC-V

Release: Published the bn128 Rust library optimized for RISC-V 64 (Repo | Crate)

Impact: This library enables highly efficient elliptic curve operations on CKB-VM for zkVM verification and other cryptographic use cases.

Improvements

CKB Core

RocksDB Schema Migration via SST Ingestion

Implemented the database migration path for the RocksDB schema refactor. The migration is parallelized by block height ranges.

Performance Benchmarks:

• 32 cores (i9-14900K): ~8 minutes for full mainnet
• 4 cores (i9-14900K): ~20 minutes
• AWS c5.xlarge (4 vCPU, 8 GB): ~50 minutes

Next: CKB v0.205.0 is currently under review for release.

Tooling & Network

CKB TUI

• Adapted CKB TUI for the latest node version (ready for first public release): Adapt newest CKB Officeyutong/ckb-tui#12

CKB Network Probe

• Implemented periodic bootnode data retrieval: feat: retrieve the latest data from bootnode periodically ckb-discovery#17

Tentacle P2P

• Fixed yamux stream handling split: Fix yamux stream handle split tentacle#424
• Fixed spawn split implementation: fix: fix spawn split tentacle#425
• Researching Quick UDP Internet Connections (QUIC) transport integration for lower latency and improved security.

Research & Governance

• On-chain governance: investigating voting mechanisms for on-chain goverance, referencing Cardano CIP-1694. Design document in progress.
• Nervos DAO treasury: ongoing design following team discussion on computing the share of secondary issuance.