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The Three Cs: Concatenate, Compress, Cache

CSS Wizardry

Compressing them over the network: Which compression algorithm, if any, will we use? Caching them at the other end: How long should we cache files on a user’s device? In our specific examples above, the one-big-file pattern incurred 201ms of latency, whereas the many-files approach accumulated 4,362ms by comparison.

Cache 337
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Consistent caching mechanism in Titus Gateway

The Netflix TechBlog

We introduce a caching mechanism in the API gateway layer, allowing us to offload processing from singleton leader elected controllers without giving up strict data consistency and guarantees clients observe. For example, it is OK to send writes through one instance, and do reads from another one with full data read consistency guarantees.

Cache 234
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CSS and Network Performance

CSS Wizardry

In this post I want to look at how CSS can prove to be a substantial bottleneck on the network (both in itself and for other resources) and how we can mitigate it, thus shortening the Critical Path and reducing our time to Start Render. This is best illustrated with an example. Employ Critical CSS.

Network 278
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Cache Grab: How Much Are You Leaving on the Table?

CSS Wizardry

For the longest time now, I have been obsessed with caching. I think every developer of any discipline would agree that caching is important, but I do tend to find that, particularly with web developers, gaps in knowledge leave a lot of opportunities for optimisation on the table. Want to know everything (and more) about HTTP cache?

Cache 222
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Designing Instagram

High Scalability

We will use a cache having an LRU based eviction policy for caching user feeds of active users. It’s apparent that the most important features for feed ranking will be related to social network. Some of the keys of understanding the user network are listed below. Optimization. Who is the user a close follower of?

Design 334
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Self-Host Your Static Assets

CSS Wizardry

A classic example is jQuery, that we might link to like so: There are a number of perceived benefits to doing this, but my aim later in this article is to either debunk these claims, or show how other costs vastly outweigh them. Users might already have the file cached. Penalty: Network Negotiation. What Am I Talking About?

Cache 274
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Netflix Android and iOS Studio Apps?—?now powered by Kotlin Multiplatform

The Netflix TechBlog

The high likelihood of unreliable network connectivity led us to lean into mobile solutions for robust client side persistence and offline support. You only need to write platform-specific code where it’s necessary, for example, to implement a native UI or when working with platform-specific APIs.

Mobile 279