How Cloudflare runs machine learning inference in microseconds
June 19, 2023
How we optimized bot management’s machine learning model execution...
How Pingora keeps count
May 12, 2023
In this blog post, we explain and open source the counting algorithm that powers Pingora. This will be the first of a series of blog posts that share both the Pingora libraries and the ideas behind ...
Oxy: Fish/Bumblebee/Splicer subsystems to improve reliability
April 20, 2023
We split a proxy application into multiple services to improve development agility and reliability. This blog also shares some common patterns we are leveraging to design a system supporting zero-downtime restart...
Oxy: the journey of graceful restarts
April 04, 2023
Deploying new versions of long-lived server software while maintaining a reliable experience is challenging. For oxy, we established several development and operational patterns to increase reliability and reduce friction in deployments...
From IP packets to HTTP: the many faces of our Oxy framework
March 30, 2023
We have recently introduced Oxy, our Rust-based framework for proxies powering many Cloudflare services and products. Today, we will explain why and how it spans various layers of the OSI model, by handling directly raw IP packets, TCP connections and UDP payloads...
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September 14, 2022
How we built Pingora, the proxy that connects Cloudflare to the Internet
Today we are excited to talk about Pingora, a new HTTP proxy we’ve built in-house using Rust that serves over 1 trillion requests a day...
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September 15, 2021
Building Cloudflare Images in Rust and Cloudflare Workers
Using Rust and Cloudflare Workers helps us quickly iterate and deliver product improvements over the coming weeks and months....
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September 09, 2021
Native Rust support on Cloudflare Workers
Introducing the Cloudflare Workers Rust SDK: write your entire Worker in Rust, no JavaScript required. ...
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August 26, 2021
Pin, Unpin, and why Rust needs them
Using async Rust libraries is usually easy. It's just like using normal Rust code, with a little async or .await here and there. But writing your own async libraries can be hard. ...
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December 25, 2020
Using One Cron Parser Everywhere With Rust and Saffron
Cron parsers are everywhere, each supporting their own extensions on the cron string format, which made consistency between parts of Cron Triggers difficult to achieve. Today we’re showing how we easily solved this problem with Rust without needing to write the same code twice....
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September 24, 2020
Building even faster interpreters in Rust
Firewall Rules lets customers filter the traffic hitting their site, powered by our Wirefilter engine. We’re excited to share some in-depth optimizations we have recently made to improve the performance of our edge....
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November 29, 2019
A History of HTML Parsing at Cloudflare: Part 2
The second blog post in the series on HTML rewriters picks up the story in 2017 after the launch of the Cloudflare edge compute platform Cloudflare Workers. It became clear that the developers using workers wanted the same HTML rewriting capabilities that we used internally, ...
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November 28, 2019
A History of HTML Parsing at Cloudflare: Part 1
To coincide with the launch of streaming HTML rewriting functionality for Cloudflare Workers we are open sourcing the Rust HTML rewriter (LOL HTML) used to back the Workers HTMLRewriter API. We also thought it was about time to review the history of HTML rewriting at Cloudflare....
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March 28, 2019
? The Wrangler CLI: Deploying Rust with WASM on Cloudflare Workers
Today, we're open sourcing and announcing wrangler, a CLI tool for building, previewing, and publishing Rust and WebAssembly Cloudflare Workers. If that sounds like some word salad to you, that's a reasonable reaction....
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March 27, 2019
BoringTun, a userspace WireGuard implementation in Rust
Today we are happy to release the source code of a project we’ve been working on for the past few months. It is called BoringTun, and is a userspace implementation of the WireGuard® protocol written in Rust....
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March 04, 2019
Building fast interpreters in Rust
In the previous post we described the Firewall Rules architecture and how the different components are integrated together. We created a configurable Rust library for writing and executing Wireshark®-like filters in different parts of our stack written in Go, Lua, C, C++ and Java...
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March 04, 2019
How we made Firewall Rules
Recently we launched Firewall Rules, a new feature that allows you to construct expressions that perform complex matching against HTTP requests and then choose how that traffic is handled....
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January 22, 2019
Enjoy a slice of QUIC, and Rust!
During last year’s Birthday Week we announced early support for QUIC, the next generation encrypted-by-default network transport protocol designed to secure and accelerate web traffic on the Internet....
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October 16, 2018
Serverless Rust with Cloudflare Workers
The Workers team just announced support for WebAssembly (WASM) within Workers. If you saw my post on Internet Native Apps, you'll know that I believe WebAssembly will play a big part in the apps of the future....
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