Jean Boussier (@_byroot) / X

Jean Boussier

1,370 posts

Jean Boussier

@_byroot

Rails core, Ruby committer, Senior Principal Engineer at Intercom. Bsky: byroot.bsky.social Mastodon: @[email protected]

Toulouse

github.com/byroot

Joined April 2022

Pinned
Jean Boussier
@_byroot
Oct 23, 2023
After several months of work, we finally enabled Pitchfork reforking on 100% of Shopify's monolith. ~30% reduction in memory usage, ~9% better latency and more!
Effects of Pitchfork reforking on Shopify’s Monolith
From railsatscale.com
Jean Boussier
@_byroot
57m
A history of Ruby's Hash tables, and how we can make them use less memory:
byroot.github.io
Shrinking Ruby Hashes
As you may know, one area of Ruby performance optimization that particularly interests me is memory usage. Given that most Ruby deployments rely on fork, improving Copy-on-Write performance is...
Jean Boussier
@_byroot
Jul 26
While it has been 18 months since I blogged about it, the json gem performance has improved quite significantly since, so now is a good time to add a few more parts to my JSON series:
byroot.github.io
Optimizing Ruby’s JSON, Part 8
It has now been about 18 months since I concluded my post series on optimising Ruby’s json.
Jean Boussier
@_byroot
May 21
This one feels good. No more stupid comments at the top of files. At least in one repo.
Jean Boussier
@_byroot
Apr 20
I wrote some more as a way to fight jet lag, hopefully it's still readable 😅:
byroot.github.io
The Missing Bundler Features
Over the last few months, there has been a lot of talk about making Bundler faster, both by improving it directly, or by reimplementing it in another language, and while it may surprise some, that...