Joshua Young
@joshuay03.bsky.social
Software Engineer at Buildkite, Rubyist, Rails Issues team member, Puma maintainer, and OSS contributor.
I really shouldn't be sharing teasers given how much work's left to do, and the good chance that this becomes another forgotten experiment, but I'm pretty happy with how far I got with barely any tuning (compared to the 20-year battle-tested Puma, which I've taken some inspiration from <3).
1/5
1/5
November 10, 2025 at 5:44 PM
I really shouldn't be sharing teasers given how much work's left to do, and the good chance that this becomes another forgotten experiment, but I'm pretty happy with how far I got with barely any tuning (compared to the 20-year battle-tested Puma, which I've taken some inspiration from <3).
1/5
1/5
Satisfying memory and CPU improvements after enabling Puma preloading + Process.warmup on one of Buildkite's services (our agent shard). Just rolled this out to all services - keen to see the broader impact!
August 30, 2025 at 8:36 AM
Satisfying memory and CPU improvements after enabling Puma preloading + Process.warmup on one of Buildkite's services (our agent shard). Just rolled this out to all services - keen to see the broader impact!