Async Processing: The Secret to Surviving Spikes
How decoupling work from requests helps systems stay stable under load In the previous part, we saw the limitations of synchronous systems. When every…
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The Zeigarnik Effect in a Single Room: Fixing Context Bleed and Mental Fog
I recently spent two hours in a noisy coffee shop, completely locked into some fairly dense reading. I was jumping between the mechanics of gold price…
eBPF From Rust: The 34ms Ghost We Couldn’t See
When your profiler swears everything’s fast but your metrics are screaming bloody murder eBPF From Rust: The 34ms Ghost We Couldn’t See When your prof…
How to Benchmark LLM Inference Performance: TTFT, ITL, and Throughput Metrics
When deploying large language models to production, measuring performance accurately is critical. Whether you're using vLLM, SGLang, TensorRT-LLM, or …
Building Performance-First Websites: A Developer's Guide to Measurable Speed
Building Performance-First Websites: A Developer's Guide to Measurable Speed Web performance has evolved from a nice-to-have optimisation into a funda…
React Re-rendering: When and Why Component Trees Update
Related: Long Tasks and Main Thread Blocking heavy React renders are one of the most common sources of Long Tasks. React's default re-render behavior …
Borrowed Strings: API Designs That Cut 94% of Allocations
The 6ms latency improvement from one character change — how &str over String transformed our hot path performance Borrowed Strings: API Designs Th…
Advanced PostgreSQL: JSONB, partial indexes and partitioning
A trades table with 50 million rows. The query "which active trades for this user this month" takes 4 seconds. After applying the four techniques in t…
SQL Server Running Slow? Here's What Actually Fixes It.
Every growing business hits this wall at some point. The application that worked perfectly six months ago now takes forever to load. Users start compl…
Cost Optimization Strategies for Databricks Workloads
Introduction Databricks has become a core platform for data engineering, analytics, and machine learning. It brings flexibility and scalability, but i…
Privacy-first mind mapping app. Part 2: Rust Backend - Why the Pain Is Worth It
Choosing Rust for a backend can feel irrational at first. If your short‑term goal is raw development speed, Rust does not win. The compiler is unforgi…
Testing on Fast Wi-Fi Is Not a Performance Test
Testing on Fast Wi-Fi Is Not a Performance Test Tags: #react #performance #webdev #javascript Most performance testing happens on a MacBook Pro, over …
Your Slow Website is a Legal Risk: Why Technical Debt is Now a Liability
Hey DEV community! 👋 After auditing dozens of enterprise platforms, I’ve noticed a dangerous trend. We talk a lot about JS bloat ruining Core Web Vita…
Stop Merging Slow Code: Catching Python Performance Regressions Before They Hit Production with Oracletrace
We spend a significant amount of time ensuring our Python code is clean, linted, and logically sound. We write unit tests to verify correctness and in…
2026 Web Development Trends: AI, Performance & WebAssembly Convergence
2026 Web Development Trends: Where AI Meets Performance 2026 marks the year where emerging technologies converge into production-grade tooling. Here's…
CI/CD Build Systems for Cloud-Native Applications
TLDR ; Multi-stage Docker builds with BuildKit caching reduce image sizes by 80% and build times by 60% Remote build caching shares artifacts across d…
Indexing Strategies for Faster Database Queries
TL;DR Indexes = direct lookups — milliseconds vs full table scans (seconds). B-tree for most queries — Supports = , < , > , BETWEEN , LIKE 'pref…
Columnar Databases (ClickHouse/Snowflake)
The Data Titans: Diving Deep into the World of Columnar Databases (ClickHouse & Snowflake) Hey there, fellow data enthusiasts! Ever feel like you'…
How to Optimize Machine Learning Models on AWS
In the high-stakes environment of cloud computing, optimizing machine learning models on AWS is the difference between an expensive experimental proje…
How We Build High-Performance Animated Websites Without Killing Page Speed
Modern web users expect two things at the same time: smooth, delightful animations and instant page loads . The problem? Most teams accidentally sacri…
HttpArena - Benchmark Web Frameworks
HttpArena is a recent project which goal is to build an open source platform where web frameworks are benchmarked for throughput performance, CPU usag…
Why AI Correlation Is Harder Than You Think (And What 20 Years of Pain Taught Me)
Every performance tester knows the feeling. You record a user journey, hit replay, and watch your script crash within seconds. The culprit is almost a…
How to Reduce Magento 2 Bootstrap Time by 30%
Every time Magento handles a request, it loads hundreds of PHP classes, registers thousands of event observers, and wires up a plugin chain across the…
Magento 2 Core Web Vitals: How to Score 90+ on PageSpeed
Core Web Vitals are a Google ranking signal and a direct measure of your store's user experience. Most Magento stores score 30–50 on mobile PageSpeed.…
Best Magento 2 Performance Extensions in 2026
Performance extensions are one of the highest-ROI investments you can make on a Magento store. A 1-second improvement in load time can increase conver…
We Ran 7,600+ Cloud Provisioning Tests Across AWS, Azure, and GCP — Here's What We Found
Nobody publishes this data. We measured it ourselves. Cloud providers publish uptime SLAs. They publish pricing calculators. They publish feature comp…
How TikTok’s Safety Bot Forced Me to Optimize My JS Canvas Engine
If you’ve ever tried marketing an indie game on short-form video platforms, you already know the golden rule: Make it flashy, make it fast, and make i…
PostgreSQL Performance Optimization: Why Connection Pooling Is Critical at Scale
If you’ve ever scaled an app and suddenly your database starts struggling even though your queries are optimized, you’re not alone. The issue often is…
Java Without the JVM? A Journey into Spring Boot Native Images
The Cloud Bill That Didn’t Make Sense In the mid-2000s, Java was considered a heavyweight. A ravenous monster devouring all available hardware resourc…
DuckDB in the Wild: What 6 Minutes of Benchmarking Across 4 Machines Taught Me About Real-World Performance
Character Design I care more about "can we ship this?" than "is this theoretically optimal?" When I pick data tools, I usually ask three questions: Wi…