Efficiency is a crucial factor that determines system performance in the modern digital environment, which is marked by exponential data expansion. Conventional data transfer methodologies, which necessitate the central processing unit (CPU) to execute multiple data copy operations, impose significant overhead, thereby impeding performance. The concept of ‘zero-copy’ emerges as a pivotal optimization strategy, designed to mitigate these inefficiencies by eliminating redundant data replication within the system. This paradigm change eliminates the need for the CPU to act as an intermediary and significantly lowers latency by enabling direct data flow between external devices and memory.

With their sophisticated query engines, transaction management, and indexing algorithms, databases are frequently regarded as complex systems. What if I told you that it is quite simple to write a database from scratch, what would you think? In this post, we’ll use only simple bash functions to reduce databases to their bare essentials: storing, retrieving, and modifying data.

This lightweight, basic method will provide you with a new perspective, regardless of whether you’re searching for a fun weekend project or simply want to comprehend the fundamental ideas behind databases. Let’s get started!