Rust Developers at Google Twice as Productive as C++ Teams

An anonymous reader shares a report: Echoing the past two years of Rust evangelism and C/C++ ennui, Google reports that Rust shines in production, to the point that its developers are twice as productive using the language compared to C++. Speaking at the Rust Nation UK Conference in London this week, Lars Bergstrom, director of engineering at Google, who works on Android Platform Tools & Libraries, described the web titan's experience migrating projects written in Go or C++ to the Rust programming language.

Bergstrom said that while Dropbox in 2016 and Figma in 2018 offered early accounts of rewriting code in memory-safe Rust - and doubts about productivity and the language have subsided - concerns have lingered about its reliability and security. 'Even six months ago, this was a really tough conversation,' he said. 'I would go and I would talk to people and they would say, 'Wait, wait you have an `unsafe` keyword. That means we should all write C++ until the heat death of the Universe.''

But there's been a shift in awareness across the software development ecosystem, Bergstrom argued, about the challenges of using non-memory safe languages. Such messaging is now coming from government authorities in the US and other nations who understand the role software plays in critical infrastructure. The reason is that the majority of security vulnerabilities in large codebases can be traced to memory security bugs. And since Rust code can largely if not totally avoid such problems when properly implemented, memory safety now looks a lot like a national security issue.

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