Update this post is also available in Japanese. This is a post about an experimental tool that I have been working on. gcvis is a simple way of visualising the operation of the garbage collector within a Go process. Here is a screenshot of it in operation. The rest of this article explores how gcvis works and how to interpret its results. How does gcvis get the data ? There are a few ways you can
This is a short response to the recently announced Go 2 generics draft proposals Update: This proposal is incomplete. It cannot replace two common use cases. The first is ensuring that several formal parameters are of the same type: contract comparable(t T) { t > t } func max(type T comparable)(a, b T) T Here a, and b must be the same parameterised type — my suggestion would only assert that they
Fifteen years ago Python’s GIL wasn’t a big issue. Concurrency was something dismissed as probably unnecessary. What people really was needed was a faster interpreter, after all, who had more than one CPU? But, slowly, as the requirement for concurrency increased, the problems with the GIL increased. By the time this decade rolled around, Node.js and Go had arrived on the scene, highlighting the n
Full disclosure: my employer makes a Slack alternative. All my concerns about the use of Slack type chat services apply equally to its competitors, including my employer’s. I’ve tweeted a few times about my frustration with the movement of open source projects from open, asynchronous, communication tools like forums, mailing lists, and issue trackers, to closed, synchronous communication services
Good morning! Thank you for coming to my talk. Before I begin, I want to express my gratitude to tenntenn and the organisers of GoCon for inviting me to speak today. I also want to acknowledge the generous sponsorship of our hosts, Cyber Agent, for providing the venue for today. [ to audience ] would someone be kind enough to read this for me ? Do you know the english translation? A frog in a well
Introduction Cross compilation is one of Go’s headline features. I’ve written about it a few times, and others have taken this work and built better tooling around it. This morning Russ Cox committed this change which resolved the last issue in making cross compilation simpler and more accessible for all Gophers. When Go 1.5 ships in August any Go programmer will be able to cross compile their pro
Here is a short recipe I use for installing multiple versions of Go from source. In this example I’m going to install the release (currently Go 1.3.1) and trunk versions of Go. Step 1. Checkout Checkout two copies of the Go source code into independent paths. % hg clone https://code.google.com/p/go -r release $HOME/go.release % hg clone https://code.google.com/p/go $HOME/go.trunk Step 2. Build Bui
This is a short blog post explaining why I believe that Go and Rust are not competitors. Why people think Rust and Go are competitors To explain why I think Rust and Go are not competitors, I want to to lay out the reasons why I think the question is being asked in the first place. Rust and Go were announced around the same time. Go was conceived in 2007 and became public in November of 2009. Rust
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