Articles by KENNETH

Troubleshooting Application Performance and Slow TCP Connections with NGINX Amplify I’m going to share an example of using NGINX Amplify as a visualization and reporting tool for benchmarking application performance. The primary focus is going to be measuring the performance of a keepalive connection technique. As you’ll see at the conclusion, we found that we can double performance in a realistic testing scenario by using TCP keepalive. Using the NGINX upstream keepalive mechanism reduces connection overhead, by reducing the number of TCP/IP packet round trips, and also gives more consistent response time. Using NGINX Amplify, we’re able to easily visualize the interaction, identify bottlenecks, and troubleshoot excessive TCP connect time, improving application performance. Introduction Keepalive connections can significantly boost performance, but only if they’re reused extensively, sharply reducing the need to create new connections, which are computationally expensive to set [ more… ]