Rust Rewrite Enables Cloudflare to Boost CDN Performance and Enhance Security

By adopting Rust for one of its core subsystems, Cloudflare succeeded in reducing response time by 10 ms and boosting performance by 25%. Additionally, the company emphasized that Rust made their system more secure and reduced development time.

Uber Adopts Amazon OpenSearch for Semantic Search to Better Capture User Intent

To improve search and recommendation user experiences, Uber migrated from Apache Lucene to Amazon OpenSearch to support large-scale vector search and better capture search intent. This transition introduced several infrastructure challenges, which Uber engineers addressed with targeted solutions.

Enhancing A/B Testing at DoorDash with Multi-Armed Bandits

While experimentation is essential, traditional A/B testing can be excessively slow and expensive, according to DoorDash engineers Caixia Huang and Alex Weinstein. To address these limitations, they adopted a “multi-armed bandits” (MAB) approach to optimize their experiments.

Meta's Approach to Migrating their Systems to Post-Quantum Cryptography

Meta has already begun preparing for the threats posed by quantum computing and migrating its systems to post-quantum cryptography, a complex process that will take multiple years to complete. In a recent article, Meta researchers outline their strategy and share key lessons learned along the way.

How LinkedIn Identified a Kernel Lock Contention Issue Causing Recurring System Freezes

When LinkedIn engineers encountered short-lived, recurring outages where the database powering their user feed became unavailable and then recover without leaving helpful traces, they had to devise a novel approach to uncover the root cause using off-CPU profiling with eBPF.