How to set up nginx optimization

To optimize NGINX performance, you can adjust the following key settings: Set the number of worker processes, connections, and file descriptor limits. Configure event handling methods to epoll or kqueue. Adjust buffer size and proxy buffer settings. Sets the connection pool timeout and maximum number of requests. Enable GZIP compression and specify the file type to compress. Enable sendfile, delay data sending, and disable delayed sending.

NGINX Optimization Setup Guide

To optimize NGINX performance, the following key settings need to be adjusted:

1. Worker process

• worker_processes: Set as the number of physical cores of the server. For example, the 4-core server is set to worker_processes 4;
• worker_connections: set to at least 1024 to handle a large number of concurrent connections.

2. Event handling

• worker_rlimit_nofile: Adds file descriptor limit to allow each worker process to open more connections. It is recommended to set to 10240 or higher.
• events: Configure event handling methods. For high traffic sites, epoll or kqueue is recommended (if available).

3. Buffer

• client_body_buffer_size: Resize the client request buffer size to prevent large requests from causing 502 errors. It is recommended to set to 4k-8k.
• client_max_body_size: Set the maximum request body size to prevent malicious requests. It is recommended to set it to 1M-10M, depending on the website requirements.
• proxy_buffer_size: Set the proxy buffer size to handle large responses. It is recommended to set to 4k-8k.
• proxy_buffers: Set the number of proxy buffers to provide more buffer space. It is recommended to set to 4-8.
• proxy_buffering: enable proxy buffering to improve throughput.

4. Connection pool

• keepalive_timeout: Sets the time the connection remains active to reduce frequent handshakes. It is recommended to set to 60-120 seconds.
• keepalive_requests: Sets the maximum number of requests allowed per connection to prevent the connection from being abused. It is recommended to set it to 100-1000.

5. Compression

• gzip: Enable GZIP compression to reduce response size.
• gzip_min_length: Sets the minimum file size for gzip compression to avoid unnecessary compression of small files. It is recommended to set to 1k-2k.
• gzip_types: Specifies the file type to compress.

6. Other settings

• sendfile: Enable sendfile to use efficient kernel file transfer.
• tcp_nopush: Delay data transmission to improve throughput.
• tcp_nodelay: Disable delayed sending to reduce latency.

By optimizing these settings, NGINX performance can be significantly improved, more requests can be processed and better experiences for users.

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