網絡處理器通常由多個異構的處理和內存單元通過片上網絡連接構成，其目標應用需要在Gbit/s到幾十Gbit/s 的網絡環境中以線速處理數據包。基于網絡處理器的應用有實時、資源受限和異構的特點。組件技術對于復雜的嵌入式系統是一種十分有前途的方法。本文以一種典型的網絡處理器為例，說明了在基于網絡處理器的系統中應用組件技術時，對組件框架的要求，討論了組件組合框架和運行時框架，并定義了組件框架服務。利用提出的組件框架，可以實現軟件性能工程。
關鍵詞: 網絡處理器; 組件模式; 組件框架; 軟件性能工程.

ABSTRACT: Network processor based applications are real-time, resource-constrained and heterogeneous. We believe that component technology is a promising approach for complex embedded system development. However, the general purpose component technology is not suitable for the contexts of network processor. This paper gives requirements of component framework for applying component technology to network processor based systems.
Composition and run-time framework are discussed. The proposed component framework supports software performance engineering.
KEY WORDS: Network processor, Component model, Component framework, Software performance engineering