Performance Tuning Optimize Linux system performance through kernel parameter tuning, I/O scheduler selection, memory management, CPU governor configuration, and benchmarking. Covers methodology, real sysctl settings, and tool-based validation. When to Use - Server experiencing high latency, throughput bottlenecks, or resource exhaustion - Preparing infrastructure for high-traffic events or load tests - Tuning a database server, web server, or application host for production - Diagnosing whether a bottleneck is CPU, memory, disk I/O, or network - Establishing baseline performance metrics befo…