It’s well known that NGINX uses an asynchronous, event‑driven approach to handling connections. This means that instead of creating another dedicated process or thread for each request (like servers with a traditional architecture), it handles multiple connections and requests in one worker process. To achieve this, NGINX works with sockets in a non‑blocking mode and…
Continue reading ›Socket Sharding in NGINX Release 1.9.1
[ngx_snippet name='table-style-blog'] NGINX release 1.9.1 introduces a new feature that enables use of the SO_REUSEPORT socket option, which is available in newer versions of many operating systems, including DragonFly BSD and Linux (kernel version 3.9 and later). This socket option allows multiple sockets to listen on the same IP address and port combination. The kernel then load balances…
Continue reading ›HTTP Keepalive Connections and Web Performance
Have you ever benchmarked a server in the lab and then deployed it for real traffic, only to find that it can’t achieve anything close to the benchmark performance? CPU utilization is low and there are plenty of free resources, but clients complain of slow response times and you can’t figure out how to get better…
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