Bitu Technology is the registered company of Tubi's China team. We are engineers passionate about leveraging advanced technology to improve lives, and we hope to use this channel to connect and advance together.
This article reviews the fundamentals of eBPF, explains its architecture and tracing mechanisms such as USDT, uprobes, and TC hooks, provides practical code examples, discusses security aspects, and lists notable open‑source projects that leverage eBPF for performance and observability.
The article reviews Scott's presentation on Lexical, the next‑generation Elixir language server, explaining the Language Server Protocol, Lexical's dual‑node architecture, modular design for easy contribution, and upcoming development plans, while inviting the community to explore the video replay and contribute.
The article recaps Tubi’s eighth Elixir Meetup, detailing Horvo’s presentation on building a live HLS video streaming backend with Elixir, covering the system’s transcoder, scheduler, HLS server, encryption, ad‑insertion strategies, and why Elixir was chosen for high‑performance backend services.
The article explains Tubi's migration from PHP and Node.js to Elixir, detailing how the functional language improved the performance of their policy engine and other backend services, while sharing engineers' experiences and addressing concerns about using a niche technology.
This article explains how Tubi’s engineering team uses Kustomize to simplify and scale Kubernetes Resource Manifest management by aggregating resources, applying patches, organizing bases and overlays, and leveraging reusable components to reduce duplication and improve maintainability across clusters and namespaces.
The eighth Scala Meetup featured three technical talks—Tubi’s journey with gRPC and Akka‑gRPC migration, an introduction to functional programming concepts in Scala, and the use of Scala in interactive notebooks—followed by audience Q&A and links to full recordings and slides.
This article shares Tubi’s experience using Elixir‑gRPC in production, covering performance optimizations, stability measures, HTTP/2 edge‑case handling, and practical code examples for efficient Protobuf processing; it also discusses Envoy sidecar integration, interceptor usage, and lessons learned from real‑world deployments.
The seventh Tubi‑sponsored Elixir Meetup featured three expert talks covering the migration of an Express.js/MongoDB legacy system to Elixir/PostgreSQL, building a WebRTC audio chat application with Elixir, and creating a distributed virtual‑player platform using Elixir’s powerful clustering and actor model capabilities.
The article describes Tubi’s internal experimentation platform, explaining how traditional user‑group A/B tests can suffer from network interference and how Switchback experiments—time‑window based designs—address these issues, detailing their implementation, statistical methods, and the practical challenges overcome.
This article explains how Tubi leverages natural‑language processing, sentence embeddings (USE and BERT), and LightGBM models to automatically categorize large volumes of Net Promoter Score comments and customer‑support tickets, enabling data‑driven product decisions and workflow automation.
