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October 16, 2023 5:53 PM
Introducing the Project Argus Datacenter-ready Secure Control Module design specification
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 12:47 AM
How Cloudflare is staying ahead of the AMD vulnerability known as “Zenbleed”
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 1:00 PM
DDR4 memory organization and how it affects memory bandwidth
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 2:00 PM
Deploying firmware at Cloudflare-scale: updating thousands of servers in more than 285 cities
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 2:00 PM
Armed to Boot: an enhancement to Arm's Secure Boot chain
Enhancing the Arm Secure Boot chain to improve platform security on modern systems....
December 14, 2022 2:00 PM
A more sustainable end-of-life for your legacy hardware appliances with Cloudflare and Iron Mountain
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....
December 14, 2022 2:00 PM
How we’re making Cloudflare’s infrastructure more sustainable
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....
May 26, 2022 1:17 PM
Cloudflare’s approach to handling BMC vulnerabilities
Cloudflare’s approach to handling firmware vulnerabilities and how we keep our internal data protected...
May 17, 2022 12:59 PM
Debugging Hardware Performance on Gen X Servers
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 12:58 PM
Measuring Hyper-Threading and Turbo Boost
Contemporary x86 processors implement some variants of Hyper-Threading and Turbo Boost. We decided to learn about the implications of these two technologies....
August 31, 2021 1:00 PM
The EPYC journey continues to Milan in Cloudflare’s 11th generation Edge Server
At Cloudflare we aim to introduce a new server platform to our edge network every 12 to 18 months or so, to ensure that we keep up with the latest industry technologies and developments. ...
July 27, 2021 12:59 PM
Designing Edge Servers with Arm CPUs to Deliver 57% More Performance Per Watt
Using Arm, Cloudflare can now securely process over ten times as many Internet requests for every watt of power consumed, than we did for servers designed in 2013. ...
March 11, 2021 12:00 PM
ARMs Race: Ampere Altra takes on the AWS Graviton2
A comparison between the Ampere Altra and the AWS Graviton2, the two ARM Neoverse N1-based processors....
December 04, 2020 2:05 PM
An introduction to three-phase power and PDUs
This blog is a quick Electrical Engineering 101 session going over specifically how 3-phase PDUs work, along with some good practices on how we use them...
November 27, 2020 1:00 PM
ASICs at the Edge
At Cloudflare, we pride ourselves in our global network that spans more than 200 cities in over 100 countries. To accelerate all that traffic through our network, there are multiple technologies at play. So let’s have a look at one of the cornerstones that makes all of this work....