Architects' Tech Alliance

Jul 7, 2023 · Fundamentals

Factors Affecting PCIe Link Performance: Encoding, Link Layer, MPS, and MRRS

This article reviews the key factors that influence PCIe link performance—including data encoding schemes, link‑layer and physical‑layer overhead, and the configuration of Maximum Payload Size (MPS) and Maximum Read Request Size (MRRS)—and explains how each impacts real‑world throughput.