Multimodal AI – models capable of processing multiple different types of inputs like speech, text, and images – have been transforming user experiences in the wearables space. With our Ray-Ban Meta glasses, multimodal AI helps the glasses see what the wearer is seeing. This means anyone wearing Ray-Ban Meta glasses can ask them questions about [...] Read More... The post Building multimodal AI for Ray-Ban Meta glasses appeared first on Engineering at Meta.
The growth of data and need for increased power efficiency are leading to innovative storage solutions. HDDs have been growing in density, but not performance, and TLC flash remains at a price point that is restrictive for scaling. QLC technology addresses these challenges by forming a middle tier between HDDs and TLC SSDs. QLC [...] Read More... The post A case for QLC SSDs in the data center appeared first on Engineering at Meta.
Meta has been working to shift its Android codebase from Java to Kotlin, a newer language for Android development that offers some key advantages over Java. We’ve even open sourced various examples and utilities we used to in our migration to manipulate Kotlin code. So how do you translate roughly tens of millions of lines of Java [...] Read More... The post How Meta is translating its Java codebase to Kotlin appeared first on Engineering at Meta.
Meta’s Anti Scraping team focuses on preventing unauthorized scraping as part of our ongoing work to combat data misuse. In order to protect Meta’s changing codebase from scraping attacks, we have introduced static analysis tools into our workflow. These tools allow us to detect potential scraping vectors at scale across our Facebook, Instagram, and even [...] Read More... The post Protecting user data through source code analysis at scale appeared first on Engineering at Meta.
Today, we’re announcing our most ambitious subsea cable endeavor yet: Project Waterworth. Once complete, the project will reach five major continents and span over 50,000 km (longer than the Earth’s circumference), making it the world’s longest subsea cable project using the highest-capacity technology available. Project Waterworth will bring industry-leading connectivity to the U.S., India, Brazil, [...] Read More... The post Unlocking global AI potential with next-generation subsea infrastructure appeared first on Engineering at Meta.
In 2024, our bug bounty program awarded more than $2.3 million in bounties, bringing our total bounties since the creation of our program in 2011 to over $20 million. As part of our defense-in-depth strategy, we continued to collaborate with the security research community in the areas of GenAI, AR/VR, ads tools, and more. We [...] Read More... The post Looking back at our Bug Bounty program in 2024 appeared first on Engineering at Meta.
WHAT IT IS Meta’s Automated Compliance Hardening (ACH) tool is a system for mutation-guided, LLM-based test generation. ACH hardens platforms against regressions by generating undetected faults (mutants) in source code that are specific to a given area of concern and using those same mutants to generate tests. When applied to privacy, for example, ACH automates [...] Read More... The post Revolutionizing software testing: Introducing LLM-powered bug catchers appeared first on Engineering at Meta.
We’re sharing how Meta built support for data logs, which provide people with additional data about how they use our products. Here we explore initial system designs we considered, an overview of the current architecture, and some important principles Meta takes into account in making data accessible and easy to understand. Users have a variety [...] Read More... The post Data logs: The latest evolution in Meta’s access tools appeared first on Engineering at Meta.
We’ve previously described why we think it’s time to leave the leap second in the past. In today’s rapidly evolving digital landscape, introducing new leap seconds to account for the long-term slowdown of the Earth’s rotation is a risky practice that, frankly, does more harm than good. This is particularly true in the data center [...] Read More... The post How Precision Time Protocol handles leap seconds appeared first on Engineering at Meta.
Introducing a new Android UI framework like Jetpack Compose into an existing app is more complicated than importing some AARS and coding away. What if your app has specific performance goals to meet? What about existing design components, integrations with navigation, and logging frameworks? On this episode of the Meta Tech Podcast Pascal Hartig is [...] Read More... The post Bringing Jetpack Compose to Instagram for Android appeared first on Engineering at Meta.
Data lineage is an instrumental part of Meta’s Privacy Aware Infrastructure (PAI) initiative, a suite of technologies that efficiently protect user privacy. It is a critical and powerful tool for scalable discovery of relevant data and data flows, which supports privacy controls across Meta’s systems. This allows us to verify that our users’ everyday interactions [...] Read More... The post How Meta discovers data flows via lineage at scale appeared first on Engineering at Meta.
We’re sharing details about Strobelight, Meta’s profiling orchestrator. Strobelight combines several technologies, many open source, into a single service that helps engineers at Meta improve efficiency and utilization across our fleet. Using Strobelight, we’ve seen significant efficiency wins, including one that has resulted in an estimated 15,000 servers’ worth of annual capacity savings. Strobelight, Meta’s [...] Read More... The post Strobelight: A profiling service built on open source technology appeared first on Engineering at Meta.
Do types actually make developers more productive? Or is it just more typing on the keyboard? To answer that question we’re revisiting Diff Authoring Time (DAT) – how Meta measures how long it takes to submit changes to a codebase. DAT is just one of the ways we measure developer productivity and this latest episode [...] Read More... The post Measuring productivity impact with Diff Authoring Time appeared first on Engineering at Meta.
Today’s rapidly evolving landscape of use cases that demand highly performant and efficient network infrastructure is placing new emphasis on how in-line amplifiers (ILAs) are designed and deployed. Meta’s ILA Evo effort seeks to reimagine how an ILA site could be deployed to improve speed and cost while making a step function improvement in power [...] Read More... The post ILA Evo: Meta’s journey to reimagine fiber optic in-line amplifier sites appeared first on Engineering at Meta.
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