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Visualizing Concurrency in Go (2016)

divan.github.io Books & learning Tutorials & guides Software engineering Candidate
Screenshot of divan.github.io captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 3 calendar years, with breakout response in 2 of them.

submissions
4
submitters
4
observed span
2016–2019
peak thread · 21 comments
282 pts
latest 20+ return · 2017-04-28
282 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

This is very nice. Does anyone have an idea of how to extend the visualization so that they could be rendered based on the actual runtime of a real program? I have a theory that much complexity could be understood if humans could just see the interactions and the data flowing. Even if the program took 100X longer to run, if you can see the bug, you can fix it. If you can see the complexity, you can understand it.

I just have to compliment the author on this, even this makes for sort of a vacuous HN comment, because it is that cool. I clicked through half-expecting "just another Go goroutine/channel tutorial", but this really is something very nice and unique, with a lot of effort put in.

jerf·258-point thread·

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
544

reference only — not used in Hall rules or ranking

Total comments
39

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2016-01-27Visualizing Concurrency in GoFirst breakoutpella25818
2017-02-10Visualizing Concurrency in Godiggan20
2017-04-28Visualizing Concurrency in Go (2016)Best thread · Latest 20+ point returnvelodrome28221
2019-07-20Visualizing Concurrency in Go (2016)bibyte20