InfoQ Homepage Performance Content on InfoQ
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Facebook Hermes May Significantly Reduce Boot-Time and Memory Usage in Android React Native Apps
Recently open-sourced by Facebook, JavaScript Engine Hermes aims to improve the performance of React Native Apps on Android devices, especially focusing on startup performance, download size, and memory consumption. Facebook claims are backed by initial benchmarking on Microsoft Office and Mattermost, an open source alternative to Slack.
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Improving Webapp Performance with Multi-Threading: a Study of Web Workers' Communication Overhead
Surma, Web Advocate at Google, recently published a study on the performance of postMessage, the method used by web workers to communicate. Surma concludes that while postMessage comes with some overhead, provided the payload is below a given budget, moving non-UI tasks off the main thread may result in increased overall user-perceived performance.
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The Cost of JavaScript 2019: Improvement Opportunities Now Mostly in Download and Execution
Addy Osmani, engineering manager at Google working on Chrome, recently presented the actualized findings of the Cost of JavaScript study. Osmani contends that, as browsers engineer improvements in JavaScript parsing and compiling time, the dominant costs of processing scripts are increasingly download and CPU execution time.
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Chrome 74 Natively Supports Lazy Loading
Google recently released Google Chrome 74 with a new experimental flag to enable native lazy loading support for images and iframes. The img and iframe HTML tags get an additional loading attribute to configure the lazy loading behaviour of the corresponding resource. Deferring load of non-visible content may reduce data usage, memory usage, and speed up above-the-fold content.
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Microsoft Announces React Native for Windows, with Focus on Performance
Microsoft recently announced at Microsoft Build 2019 a MIT-licensed, performance-oriented re-implementation of React Native for Windows. The new React Native for Windows will enable React Native developers to build native Windows apps with React. With the Windows 10 SDK support, developers may target a large variety of Windows devices such as PCs, tablets, laplets, Xbox, or Mixed Reality devices.
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Protocols are Important: Martin Thompson at QCon London
The protocols we use should be studied and practiced more, they are really important in many aspects, Martin Thompson claimed in his presentation at QCon London 2019, where he first looked back at the evolution of mankind and argued that protocols is the most significant human discovery, and then did a critical analysis of the protocols and ideas we use today.
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Spring Boot 2.2 Reaches First Milestone Release with Performance and Memory Improvements
The Spring Boot team recently released v2.2.0 M1, the first milestone release of Spring Boot 2.2. It includes performance and memory improvements, Kubernetes-detection, and third-party library updates. Over 140 issues were resolved with this release. Starting with this release, JMX is now disabled by default.
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Deliveroo Adopts Rust to Improve Performance in Core Service
Deliveroo reimplemented performance-critical components of their Dispatcher service in Rust, with an overall 4x performance improvement. InfoQ spoke with Deliveroo engineer Andrii Dmytrenko to learn more about the advantages they got from this rewrite and what it took to get there.
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WorkerDOM Adds DOM Concurrency for JavaScript Programming
The big news at this year's JSConf was the introduction of WorkerDOM, a JavaScript library to make the DOM available to Web Workers, allowing developers to leverage multi-core processor architectures to improve web performance.
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Amazon S3 Increases Request Rate Performance and Drops Randomized Prefix Requirement
Amazon Web Services (AWS) recently announced significantly increased S3 request rate performance and the ability to parallelize requests to scale to the desired throughput. Notably this performance increase also "removes any previous guidance to randomize object prefixes" and enables the use of "logical or sequential naming patterns in S3 object naming without any performance implications".
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Serverless Platforms Compared for Performance
Most major cloud providers have serverless platforms which offer functions as a service (FaaS). Some recent benchmarks study the differences in their performance vis-à-vis the runtime, cold start times, dependencies and resource allocation.
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Mozilla Firefox Will Block Web Trackers by Default
Mozilla recently announced that Firefox will block web trackers by default in a near future. Mozilla plans to releases a series of features through three key initiatives, including improving page load performance, removing cross-site tracking, and mitigating harmful practices.
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Microsoft Bing Gets Performance Boost from .NET Core 2.1
After moving Microsoft search engine Bing to .NET Core 2.1, internal server latency dropped by 34%, writes Microsoft engineer Mukul Sabharwal, mostly thanks to improvements contributed by the .NET community.
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Performance of Structs in C# 7.2
The C# compiler, under some circumstances involving readonly, creates defensive copies of a struct. While this issue is well known and documented, it’s worth revisiting as it’s tied to several features of C# 7.2. The in and ref readonly keywords make occurrences of the issue more frequent, while readonly structs offer a way to fix it.
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GDPR Changes Highlight the Impact of User Tracking
The European Union's General Data Protection Regulation (GDPR) went into effect on May 25th, 2018, with the most obvious impact being a flurry of emails notifying users of changes in privacy policies. As websites determined how to comply with the wide-reaching data privacy regulation, developers quickly observed significant benefits in page load performance.