/Latency

Investigating The Impact Of HTTP3 On Network Latency For Search

tl;dr: The Dropbox engineering team discusses experiments conducted to improve search latency: “at the beginning of our investigation into network latency, we only knew the hypothetical benefits of HTTP3. Now we have a better understanding of the actual impact that HTTP3 can bring —not only to Search, but all of Dropbox.”

featured in #417


How Discord Supercharges Network Disks For Extreme Low Latency

- Glen Oakley tl;dr: "What we'd described with our requirement was essentially a write-through cache, with GCP's Local SSDs as the cache and Persistent Disks as the storage layer. We run Ubuntu on our database servers, so we were fortunate to find that the Linux kernel is able to cache data at the disk level in a variety of ways, providing modules such as dm-cache lvm-cache, and bcache."

featured in #344


How Do Video Games Stay in Sync?

tl;dr: "Have you ever wondered how real-time games can keep multiple clients in sync even when there are large latencies between users? How can you see other players reacting to your actions near instantly, in spite of the fact that the communication between your computer and the server is not instant?

featured in #322


How Live Is Your Stream? Measure Live Latency At Scale With Mux Data

tl;dr: Beta test the new HLS Live Stream Latency metric in Mux Data for free! Understand the live streaming experience, and find opportunities to improve.

featured in #316


How Live Is Your Stream? Measure Live Latency At Scale With Mux Data

tl;dr: Beta test the new HLS Live Stream Latency metric in Mux Data for free! Understand the live streaming experience, and find opportunities to improve.

featured in #308


Latency Sneaks Up On You

- Marc Brooker tl;dr: "High-percentile latency is a bad way to measure efficiency, but a good (leading) indicator of pending overload. If you must use latency to measure efficiency, use mean (average) latency."

featured in #248


Page Weight Matters (2012)

- Chris Zacharias 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

- Ryan Peterman 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