The Wallet-Service-V2 has undergone multi-layered optimizations in parallel processing, state consistency, and code quality: 1. Parallel Processing: By executing transfer operations in parallel, the system throughput is significantly increased, greatly reducing queuing wait times in multi-user scenarios. 2. State Consistency: Adopts a “wallet lock + fine-grained cache consistency” mechanism that prioritizes read caching, optimizes lock granularity, and ensures transactional atomicity and data integrity. 3. Code Quality & Testing: Provides complete test cases for every public interface; through test refactoring and a parallel test framework, test execution speed has improved by 3–4×, substantially reducing the risk of defects reaching production. This round of optimization focuses on three core dimensions — performance, consistency, and quality — laying a solid foundation for the system's long-term stability and efficient evolution. twitter.com/BiHelix_/status/20...