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Performance

Tag for content related to software performance.

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The circular_buffer trap: how a 'faster' data structure spiked my CPU from 2% to 25%

The circular_buffer trap: how a 'faster' data structure spiked my CPU from 2% to 25%

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6 min read
Everything we got wrong caching a multi-tenant SaaS on one domain

Everything we got wrong caching a multi-tenant SaaS on one domain

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18 min read
Building a 100/100 Mobile Speed Net Worth Calculator with Astro & Tailwind

Building a 100/100 Mobile Speed Net Worth Calculator with Astro & Tailwind

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1 min read
What I measured cutting my iOS cold start to 280 ms

What I measured cutting my iOS cold start to 280 ms

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8 min read
The Physics of UI Depth: CSS Box-Shadow Vectors and GPU Compositing Pipelines

The Physics of UI Depth: CSS Box-Shadow Vectors and GPU Compositing Pipelines

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4 min read
Kimi K3's 1M Context Window Is a Mobile Constraint, Not Just a Feature

Kimi K3's 1M Context Window Is a Mobile Constraint, Not Just a Feature

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2 min read
You Probably Don't Need Virtualization (But Here's How It Actually Works)

You Probably Don't Need Virtualization (But Here's How It Actually Works)

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7 min read
Push vs Pull: A Decision About Where Complexity Lives

Push vs Pull: A Decision About Where Complexity Lives

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5 min read
From 9,663 ms to 18 ms: sorting a 389k-product catalog in Postgres (no magic, three steps)

From 9,663 ms to 18 ms: sorting a 389k-product catalog in Postgres (no magic, three steps)

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2 min read
Performance is a product feature

Performance is a product feature

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3 min read
AVIF vs WebP: Which Format Should Developers Choose in 2026?

AVIF vs WebP: Which Format Should Developers Choose in 2026?

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1 min read
Stale-while-revalidate on the edge: how our marketplace killed the cold start (and kept geo-currency)

Stale-while-revalidate on the edge: how our marketplace killed the cold start (and kept geo-currency)

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2 min read
Camera product search on the mobile web — the feature Alibaba and Amazon keep locked in their apps

Camera product search on the mobile web — the feature Alibaba and Amazon keep locked in their apps

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2 min read
Kimi K3's 896-Expert MoE Is a Distributed Scheduling Problem-Not Just a Model

Kimi K3's 896-Expert MoE Is a Distributed Scheduling Problem-Not Just a Model

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2 min read
I built a test lab to measure SSG vs SSR vs ISR on real WordPress, here's what I found

I built a test lab to measure SSG vs SSR vs ISR on real WordPress, here's what I found

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8 min read
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