ARM Takes Wing: Qualcomm vs. Intel CPU comparison

Published on by Vlad Krasnov.

One of the nicer perks I have here at Cloudflare is access to the latest hardware, long before it even reaches the market. Until recently I mostly played with Intel hardware. For example Intel supplied us with an engineering sample of their Skylake based Purley platform back in August 2016,

Results of experimenting with Brotli for dynamic web content

Published on by Vlad Krasnov.

Compression is one of the most important tools CloudFlare has to accelerate website performance. Compressed content takes less time to transfer, and consequently reduces load times. On expensive mobile data plans, compression even saves money for consumers. However, compression is not freeā€”it comes at a price. It is one

A Look at the New WordPress Brute Force Amplification Attack

Published on by Pasha Kravtsov.

Recently, a new brute force attack method for WordPress instances was identified by Sucuri. This latest technique allows attackers to try a large number of WordPress username and password login combinations in a single HTTP request. The vulnerability can easily be abused by a simple script to try a significant

Single RX queue kernel bypass in Netmap for high packet rate networking

Published on by Gilberto Bertin.

In a previous post we discussed the performance limitations of the Linux kernel network stack. We detailed the available kernel bypass techniques allowing user space programs to receive packets with high throughput. Unfortunately, none of the discussed open source solutions supported our needs. To improve the situation we decided to