Measuring Hyper-Threading and Turbo Boost

We often put together experiments that measure hardware performance to improve our understanding and provide insights to our hardware partners. We recently wanted to know more about Hyper-Threading and Turbo Boost. The last time we assessed these two technologies was when we were still deploying the Intel Xeons (Skylake/Purley), but…

Third Time’s the Cache, No More

Caching is a big part of how Cloudflare CDN makes the Internet faster and more reliable. When a visitor to a customer’s website requests an asset, we retrieve it from the customer’s origin server. After that first request, in many cases we cache that asset. Whenever anyone requests it again,…

Automatic Platform Optimization post-launch report

Last year during Birthday Week, we announced Automatic Platform Optimization for WordPress (APO): smart HTML caching for WordPress sites using Cloudflare. Initial testing across various WordPress sites demonstrated significant improvements in performance metrics like Time to First Byte (TTFB), First Contentful Paint (FCP), and Speed Index. We wanted to measure…

Tiered Cache Smart Topology

A few years ago, we released Argo to help make the Internet faster and more efficient. Argo observes network conditions and finds the optimal route across the Internet for origin server requests, avoiding congestion along the way.Tiered Cache is an Argo feature that reduces the number of data centers responsible…

Building even faster interpreters in Rust

At Cloudflare, we’re constantly working on improving the performance of our edge — and that was exactly what my internship this summer entailed. I’m excited to share some improvements we’ve made to our popular Firewall Rules product over the past few months.Firewall Rules lets customers filter the traffic hitting their…

CUBIC and HyStart++ Support in quiche

quiche, Cloudflare's IETF QUIC implementation has been running CUBIC congestion control for a while in our production environment as mentioned in Comparing HTTP/3 vs. HTTP/2 Performance). Recently we also added HyStart++  to the congestion control module for further improvements.In this post, we will talk about QUIC congestion control and loss…
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