High-performance server installation For high-performance websites with large request volume, how to support them? On the one hand, we need to reduce requests For developers----merge css, background images, reduce mysql queries, etc. 2: For operation and maintenance of expires of nginx, use browser cache, etc. to reduce queries. 3: Use CDN to respond to requests 4: The final remaining, unavoidable requests are supported by server cluster + load balancing. Therefore, after reaching step 4, do not consider reducing requests anymore. Instead, think about how to better respond to high concurrent requests. Big understanding---Since response is inevitable, what we have to do is to distribute the work content "evenly" to each server. The most ideal situation is that the performance of each server is fully utilized.