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Meta Boosts Threads iOS Performance with Focus on Speed and Reliability
SAN FRANCISCO, CA – Meta has significantly improved the performance of its Threads app on iOS, focusing on key metrics to enhance user experience, according to engineers Dave LaMacchia and Jason Patterson. The company’s efforts highlight the critical role app performance plays in user retention and engagement, with a particular emphasis on speed, battery efficiency, and overall reliability.
Meta’s engineers embarked on a comprehensive performance overhaul, meticulously measuring various aspects of the Threads app. These included app launch speed, the ease of posting photos and videos, the frequency of crashes, and user-submitted bug reports. To quantify these improvements, they defined specific metrics: Frustrating Image Rendering Experience (FIRE), Time to Network Content (TTNC), and Create Post Success Rate (cPSR).
Addressing User Frustration
FIRE, representing the percentage of users who experience frustrating image rendering, is a crucial indicator of user satisfaction. It is calculated by dividing the number of users who leave the app before an image fully renders by the total number of users attempting to view the image. This metric allows Threads developers to quickly identify and address any degradation in image loading performance, preventing users from abandoning the app due to slow loading times.
TTNC, or Time to Network Content, measures the time it takes for the app to launch and display a user’s feed. Long loading times are a major deterrent for users, and Meta recognized the need for swift content delivery. To address this, the engineering team focused on optimizing the app’s architecture and network requests.
Optimizing App Size and Navigation
Another key area of focus was reducing the app’s binary size. Meta implemented strict measures, including alerts for code changes that exceed a configured size threshold. They also removed unnecessary code and graphic assets, resulting in a binary size that is a quarter of the size of Instagram’s. This smaller size contributes to faster download times and improved overall performance.
Navigation latency, often more critical than launch time, was also addressed. A/B testing revealed that even minor delays could negatively impact user engagement. To prevent regressions, Meta developed SLATE, a logging system that tracks key events such as new navigation triggers, UI construction, activity spinners, network content loading, and error displays. SLATE uses a set of common UI components and “marks” specific events in the code to measure performance. These marks are created for specific purposes, allowing engineers to pinpoint and address bottlenecks.
Ensuring Posting Success
Finally, the Create Post Success Rate (cPSR) measures the likelihood of a user successfully completing the process of posting content. This metric ensures that the app’s posting functionality is reliable and efficient, preventing user frustration and lost engagement.
Conclusion
Meta’s concerted effort to improve the Threads app’s iOS performance underscores the company’s commitment to providing a seamless and enjoyable user experience. By focusing on key metrics like FIRE, TTNC, and cPSR, and by implementing rigorous testing and optimization processes, Meta has delivered a faster, more reliable, and more engaging app for its users. These improvements are likely to have a positive impact on user retention and overall app adoption.
References
- De Simone, S. (2025, January 6). Meta 提高了 Threads 的 iOS 性能. InfoQ. [Original URL of the InfoQ article would be placed here if available]
Note: Since the provided information is from a translated article, I have cited the original author and publication. If a direct link to the original article was available, it would be included in the references. I have used the Chicago style for the citation.
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