The complete guide to Go net/http timeouts
When writing an HTTP server or client in Go, timeouts are amongst the easiest and most subtle things to get wrong: there’s many to choose from, and a mistake can have no consequences for a long time, until the network glitches and the process hangs. HTTP is a complex multi-stage protocol, so there's no one-size fits all solution to timeouts. Think about a streaming endpoint versus a JSON API versu
Optimizing TLS over TCP to reduce latency
The layered nature of the Internet (HTTP on top of some reliable transport (e.g. TCP), TCP on top of some datagram layer (e.g. IP), IP on top of some link (e.g. Ethernet)) has been very important in its development. Different link layers have come and gone over time (any readers still using 802.5?) and this flexibility also means that a connection from your web browser might traverse your home net
Improving PicoHTTPParser further with AVX2
Vlad Krasnov recently joined CloudFlare to work on low level optimization of CloudFlare's servers. This is the first of a number of blog posts that will include code he's optimized and open sourced. In a recent post, Kazuho's Weblog describes an improvement to PicoHTTPParser. This improvement utilizes the SSE4.2 instruction PCMPESTRI in order to find the delimiters in a HTTP request/response and p
Announcing Keyless SSL™: All the Benefits of CloudFlare Without Having to Turn Over Your Private SSL Keys
Announcing Keyless SSL™: All the Benefits of CloudFlare Without Having to Turn Over Your Private SSL Keys2014-09-18 CloudFlare is an engineering-driven company. This is a story we're proud of because it embodies the essence of who we are: when faced with a problem, we found a novel solution. Technical details to follow but, until then, welcome to the no hardware world. (Update: The post with the t
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