Redis Protocol Implementation

A high-performance, asynchronous Redis server implementation in Rust, focused on low-latency and systems-level concurrency management.

Core Implementation

• Asynchronous Runtime: Built on Tokio for high-performance, non-blocking I/O.
• Protocol Parsing: Implements the RESP (Redis Serialization Protocol) via a custom TCP frame-decoder designed for zero-copy parsing where possible.
• Concurrency Management: Utilizes a thread-safe global Mutex<HashMap> for data storage. High-concurrency stress tests reveal lock contention, identifying Database Sharding as a clear optimization path.
• Performance: Achieves ~180,000+ RPS (< 0.1ms p50 latency) under standard single-threaded workloads (redis-benchmark), and ~63,750 Ops/sec in multi-threaded stress tests (memtier_benchmark).

Supported Commands

Handles core system operations, string manipulation, and list management pipelines:

Command	Category
PING	System
ECHO	System
TYPE	System
SET	String
GET	String
RPUSH	List
LPUSH	List
LRANGE	List
LLEN	List
LPOP	List
BLPOP	List & Blocking

Usage

Start the server on port 6379 (build in release mode for maximum performance)

cargo run --release

Connect using the standard Redis client

redis-cli -p 6379