Page Weight Matters (2012)
tl;dr: Chris was tasked with YouTube page from 1.2MB to under 100KB. When his code went into production, latency of requests increased. Why? He had unlocked users in new geographies that could finally watch YouTube, albeit with slower connections.
featured in #156
Video Upload Latency Improvements at Instagram
tl;dr: Given upload latency is critical to user experience at Instagram, the article runs through a set of architectural strategies used by the engineering team to reduce latency.
featured in #145