ByteDance SE Lab

Apr 17, 2026 · Industry Insights

How DisCoGC Cuts Storage Costs by 20%: A Deep Dive into ByteStore’s New GC Paradigm

This article analyzes the DisCoGC algorithm introduced by ByteDance, explaining how its discard‑centric garbage collection eliminates the write‑amplification vs. space‑amplification trade‑off in log‑structured storage, details the engineering challenges of multi‑layer deployment, and presents production results showing up to 20% TCO reduction without impacting latency.