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Making HPHPi Faster
In the world of HipHop for PHP, developers use HPHPi (the HipHop interpreter) when writing, debugging and testing PHP code. After the PHP code is committed, the PHP files are translated into C++ files...
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Three Optimization Tips for C++
This is an approximate transcript of my talk at Facebook NYC on December 4, 2012, which discusses optimization tips for C++ programs. The video of the talk is here and the accompanying slides are here....
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Evaluating boosted decision trees for billions of users
Facebook uses machine learning and ranking models to deliver the best experiences across many different parts of the app, such as which notifications to send, which stories you see in News Feed, or...
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Faiss: A library for efficient similarity search
This month, we released Facebook AI Similarity Search (Faiss), a library that allows us to quickly search for multimedia documents that are similar to each other — a challenge where traditional query...
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Expanded fastText library now fits on smaller-memory devices
Today, the Facebook AI Research (FAIR) team released pre-trained vectors in 294 languages, accompanied by two quick-start tutorials, to increase fastText’s accessibility to the large community of...
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AL: A new declarative language for detecting bugs with Infer
At Facebook, every change made to our mobile code is checked by our static analyzer Infer. Static code analyzers are tools that scan the source code of a program to detect possible bugs. The main...
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Jupiter: A high-performance job-matching service
As part of the engineering workflow — writing, editing, testing, and shipping code — we rely on backend services and machines to do a variety of jobs, such as building new packages, installing...
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Finding inter-procedural bugs at scale with Infer static analyzer
The capabilities of static analyzers, which catch bugs before programs are run, are steadily improving. During our work on the Infer static analyzer, we often were asked about the differences between...
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Android native library merging
Android developers who use lots of C++ code might be familiar with the native library limit that exists in Android versions prior to 4.3. When targeting older Android versions, one must carefully...
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