Technical reading from the Cloudflare blog for the holidays

What this post added

This post highlights several key developments in Cloudflare's data infrastructure and analytics capabilities. It details how Cloudflare analyzes 1 million DNS queries per second using a custom pipeline with ClickHouse and Grafana, and how they made their DNS stack 3x faster. It also touches on hardware performance comparisons (ARM vs. Intel), SystemTap for kernel analysis and performance optimization, and the analysis of DDoS attacks like WireX and reflection attacks. Additionally, it mentions the use of LavaRand for randomness generation and the impact of leap seconds on DNS.