2026-03-23
Cloudflare's Gen 13 servers introduce AMD EPYC™ Turin 9965 processors and a transition to 100 GbE networking to meet growing traffic demands. In this technical deep dive, we explain the engineering rationale behind each major component selection....
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2026-03-23
Cloudflare’s Gen 13 servers double our compute throughput by rethinking the balance between cache and cores. Moving to high-core-count AMD EPYC ™ Turin CPUs, we traded large L3 cache for raw compute density. By running our new Rust-based FL2 stack, we completely mitigated the latency penalty to unlock twice the performance....
2024-10-15
Cloudflare’s Gen 12 server is the most powerful and power efficient server that we have deployed to date. Through sensitivity analysis, we found that Cloudflare workloads continue to scale with higher core count and higher CPU frequency, as well as achieving a significant boost in performance with larger L3 cache per core....
2024-10-07
Great thermal solutions play a crucial role in hardware reliability and performance. Gen 12 servers have implemented an exhaustive thermal analysis to ensure optimal operations within a wide variety of temperature conditions and use cases. By implementing new design and control features for improved power efficiency on the compute nodes we also enabled the support of powerful accelerators to serve our customers....
2024-09-25
Cloudflare is thrilled to announce the general deployment of our next generation of server — Gen 12 powered by AMD Genoa-X processors. This new generation of server focuses on delivering exceptional performance across all Cloudflare services, enhanced support for AI/ML workloads, significant strides in power efficiency, and improved security features....
July 16, 2024
Cloudflare is adding support for end-to-end private traffic flows to our local traffic management (LTM) load balancing solution, and allowing for the replacement of hardware load balancers...
March 25, 2024
Operating hardware in 310 cities in 120 countries means that hardware can break anywhere and anytime. Detecting and managing server failure at scale requires automation. Here's how we automated...
March 19, 2024
Growing pains were inevitable given the sheer pace of Cloudflare’s growth. Processes around server provisioning, maintenance windows, repairs, and diagnostics reporting were reaching their limits...
December 07, 2023
To help our team continue to innovate efficiently, our MLOps effort has collaborated with Cloudflare’s data scientists to implement the following best practices...
December 01, 2023
Cloudflare Gen 12 Compute servers are moving to 2U1N form factor to optimize the thermal design to accommodate both high-power CPUs (>350W) and GPUs effectively while maintaining performance and reliability...
October 16, 2023
The DC-SCM (Datacenter-ready Secure Control Module) decouples server management from the server motherboard. It provides flexibility to implement multiple server management and security solutions with the same server motherboard design...
July 25, 2023
The Google Information Security Team revealed a new flaw in AMD's Zen 2 processors in a blog post today. The 'Zenbleed' flaw affects the entire Zen 2 product stack, from AMD's EPYC data center processors to the Ryzen 3000 CPUs, and can be exploited to steal sensitive data process...
April 19, 2023
In this blog, we will study the concepts of memory rank and organization, and how memory rank and organization affect the memory bandwidth performance by reviewing some benchmarking test results...
March 10, 2023
We have a huge number of servers of varying kinds, from varying vendors, spread over 285 cities worldwide. We need to be able to rapidly deploy various types of firmware updates to all of them, reliably, and automatically, without any kind of manual intervention....
January 25, 2023
Enhancing the Arm Secure Boot chain to improve platform security on modern systems....
December 14, 2022
Our hardware sustainability initiative encapsulates using hardware components for as long as possible, recycling them responsibly when it is time to decommission them, and selecting the most power-efficient options for our workloads....
December 14, 2022
Today, as part of Cloudflare’s Impact Week, we’re excited to announce an opportunity for Cloudflare customers to make it easier to decommission and dispose of their used hardware appliances sustainably....
May 26, 2022
Cloudflare’s approach to handling firmware vulnerabilities and how we keep our internal data protected...
May 17, 2022
In Cloudflare’s global network, every server runs the whole software stack. Therefore, it's critical that every server performs to its maximum potential capacity...
October 05, 2021
Contemporary x86 processors implement some variants of Hyper-Threading and Turbo Boost. We decided to learn about the implications of these two technologies....
