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Optimising for High Latency Environments

CSS Wizardry

This gives fascinating insights into the network topography of our visitors, and how much we might be impacted by high latency regions. Round-trip-time (RTT) is basically a measure of latency—how long did it take to get from one endpoint to another and back again? What is RTT? RTT isn’t a you-thing, it’s a them-thing.

Latency 215
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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? Given this limitation, it was advantageous to have fewer files: if we needed to download 18 files, that’s three separate chunks of work; if we could somehow bring that number down to six, it’s only one discrete chunk of work. That’s almost 22× more!

Cache 338
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Bandwidth or Latency: When to Optimise for Which

CSS Wizardry

When it comes to network performance, there are two main limiting factors that will slow you down: bandwidth and latency. Generally speaking, increased bandwidth is only particularly useful when you’re transferring or downloading large files. Latency is defined as…. and reduction in latency. with Resource Hints).

Latency 136
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Netflix Cloud Packaging in the Terabyte Era

The Netflix TechBlog

From chunk encoding to assembly and packaging, the result of each previous processing step must be uploaded to cloud storage and then downloaded by the next processing step. Uploading and downloading data always come with a penalty, namely latency.

Cloud 242
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Best practices and key metrics for improving mobile app performance

Dynatrace

Mobile applications (apps) are an increasingly important channel for reaching customers, but the distributed nature of mobile app platforms and delivery networks can cause performance problems that leave users frustrated, or worse, turning to competitors. User acquisition measures the number of new users downloading and installing an app.

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Site reliability done right: 5 SRE best practices that deliver on business objectives

Dynatrace

The growing amount of data processed at the network edge, where failures are more difficult to prevent, magnifies complexity. At the lowest level, SLIs provide a view of service availability, latency, performance, and capacity across systems. Visibility and automation are two of the most important SRE tools.

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Extending Vector with eBPF to inspect host and container performance

The Netflix TechBlog

Today we are excited to announce latency heatmaps and improved container support for our on-host monitoring solution?—?Vector?—?to Remotely view real-time process scheduler latency and tcp throughput with Vector and eBPF What is Vector? to the broader community. Vector is open source and in use by multiple companies.