CKB Dev Log 2024-04-03

[anipenguin]

A night visit to the Bouyei village - @zhangsoledad

Updates

Releases

• CKB v0.115.0: Available for download. Release Notes
• CKB-CLI v1.8.0: Latest command-line interface update. Release Notes
• CKB Rust SDK v3.1.1: Updated SDK for Rust developers. SDK Details

Features

• Asynchronous Block Handling
  • Final testing phase for asynchronous downloads. Early access version: ckb-async-download-rc1
• Spawn Syscall Enhancement
  • Implemented and preliminarily tested new spawn syscall: New spawn with scheduler #4380
• Payment Channel Network (PCN) for CKB
  • Implemented funding lock and commitment lock for PCN. https://github.com/quake/ckb-pcn-scripts
  • Designed a scenario for the HTLC Cross-Chain Protocol PoC
  • Implemented partial RPC for local client calls to PCN nodes

Improvements

• Transaction Pool
  • Implemented control mechanisms to manage transaction pool size: Limit txpool size when inserting an Entry  #4390
• CKB CoBuild - Rust
  • Refactored for final review: Big Refactor According to Updated Spec cryptape/ckb-transaction-cobuild-poc#44

Fixes

• CKB Memory Usage
  • Addressed and resolved a memory usage issue in CKB, stabilizing at 2.5GB during synchronization and around 2GB for asynchronous downloads. Included in the 0.115 release.
• CKB VM
  • Resolved multiple issues identified during fuzzing tests, enhancing VM stability.
    • fix: Snapshot2 should untrack cached pages in case of repeated memory writes ckb-vm#418
    • Multiple fixes ckb-vm#422
    • fix: Higher address bits are truncated in x64 assembly machine ckb-vm#425

In Pipeline…

• Payment Channel Network (PCN) for CKB
  • Designed to facilitate fast and efficient transactions between parties via off-chain payment channels. Key developments include:
    • Integration with lnd for scenario modifications: lndx doitian/lnd#1
    • Assembling a transaction from message parameters
    • Implementing the HTLC lock for PCN
• CKB Transaction CoBuild Protocol
  • Describes an off-chain process for collaborative CKB Transaction creation among multiple parties. Upcoming work includes:
    • Development of a Rust SDK for CoBuild.
    • Support between joyid, lumos and CoBuild
• CKB Node Monitoring Optimization
  • CKB is designing a new message bus mechanism within its nodes to optimize the tracking and analysis of operational metrics from each component. It will improve the real-time monitoring and display of critical performance indicators, such as the current download speed of block synchronization and the specifics of peers currently connected.