- Developers
- Learn best practices for instrumenting code and building reliable performance logging systems to improve app quality.
- Business
- Understand how robust performance tracking contributes to app stability and user satisfaction, impacting business success.
A solid interview with an experienced engineer on a critical software development topic.
7: Performance and Instrumentation with Ariane
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From Subvolts
Summary and analysis by Subvolts editorial, AI-assisted.
Meta Tech Podcast episode 7 features Ariane discussing performance logging. With over a decade of experience, she leads a team focused on this area. The conversation covers why performance markers are crucial for app health, what defines a good metric, and building sustainable logging systems. Ariane also offers advice for those starting with performance logging.
This episode explains why tracking app performance is important. It covers how to measure what matters and create systems that keep tracking reliable. Anyone who uses apps can benefit from understanding how developers ensure apps run smoothly.
This episode offers practical insights into performance logging, essential for building robust applications. It's for engineers and product managers focused on app quality and user experience. While not directly about frontier AI models, optimizing software performance is foundational for deploying and running complex AI systems efficiently, a key concern for labs like Meta AI and Google Gemini.
- HostPascal Harris
- GuestAriane
- Guest: Ariane
- Show: Meta Tech Podcast
- Episode Title: 7: Performance and Instrumentation with Ariane
- Length: 44 minutes
- Guest Experience: More than 10 years focusing on performance logging
In this episode, Ariane joins for an in-depth conversation about performance logging. With more than 10 years focusing on this problem, Ariane moved from Facebook Seattle to Facebook London and started a team with other engineers that are as passionate about this subject as she is. You'll hear about why instrumenting performance markers is important for a healthy app, what makes a good metric and how to build sustainable logging systems. If you're just getting started with performance logging, tune in to hear Ariane's advice on how to get started. For feedback, please reach out on Twitter at @insidefbmobile or drop us an email at mobilepodcasts@fb.com.
Projects discussed:
- QNNPack: https://code.fb.com/ml-applications/qnnpack/ - StateService: https://code.fb.com/open-source/stateservice/ - Profilo: https://facebookincubator.github.io/profilo/ - Litho: https://fblitho.com/
- instrumentation
- Ariane
- adding code to track and measure performance
- performance markers
- Ariane
- specific points in code that record how long something takes
- metrics
- Ariane
- ways to measure and evaluate performance
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Questions people ask
- What is the episode about?
- The episode discusses performance logging, its importance for app health, defining good metrics, and building sustainable logging systems.
- Who is the guest?
- The guest is Ariane, who has over 10 years of experience in performance logging and leads a team focused on this subject.
Page generated Oct 19, 2026. Summaries are Subvolts' own; the audio, artwork and notes belong to Meta.

