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Recent posts tagged performance

Level UI • 20 hours • in Articles • 9 min read
An MCP server is not a new API. It is a thin layer over the one you already have
Somewhere in the last year, "do we need an MCP server?" joined the list of questions that arrive in a brief before anyone has said what the thing is for. It is usually framed as MCP vs API, as though the Model Context Protocol were a newer kind of AP...
post-cover-33074
  • ai
  • api
  • webdev
  • security
7 Reactions 7 Comments
A.Talaat • 21 hours • in Articles • 2 min read
What Is Idempotency?
🚀 What Happens When Your API Receives the Same Request Twice? Imagine a customer clicks “Pay Now” twice because the page freezes. Or a payment gateway retries a request because it never received your response. 💥 Without proper protection, your app...
post-cover-33068
  • rails
  • ruby
  • performance
  • security
0 Reactions 0 Comments
VEACESLAV • 1 day • in Articles • 6 min read
Redux Refactoring Playbook: From Action-Types Soup to RTK Query — Without Rewriting the App
Every React codebase of a certain age has one: the legacy Redux store. Hundreds of thunk actions, manually managed loading flags, per-feature cache invalidation, and a polling timer per data type pulling the full payload whether anything changed or n...
post-cover-32949
  • react
  • redux
  • typescript
  • performance
0 Reactions 0 Comments
Anas Sheikh • 3 days • in Articles • 4 min read
You Upgraded to Next.js 15 and Your Site Got Slower. The Caching Defaults Flipped
You upgrade from Next.js 14 to 15. The app compiles, the tests pass, nothing visibly breaks. A week later your database bill is higher, your pages feel slower, and your Time to First Byte graph has a step in it that lines up exactly with the deploy. ...
  • nextjs
  • react
  • webdev
  • performance
0 Reactions 0 Comments
ilia • 3 days • in Articles • 12 min read
Seventeen Seconds to Parse One Name: A Security Scan Across Eleven PHP Projects
This is a 16 KB name: $row = 'Smith, ' . strrepeat'V ', 8188; new \Iliaal\NameParser\Parser->parse$row; On nameparser 1.5.0, the last version before the fix, that call takes 17.4 seconds of CPU on my i9-13950HX. On 1.7.0 it takes 0.064 seconds. Ea...
  • php
  • security
  • performance
  • opensource
2 Reactions 2 Comments
fazal_mansuri_ • 6 days • in Articles • 3 min read
Mastering React Performance: Optimizations That Actually Matter 🚀
Introduction React is a powerful JavaScript library, but as applications grow, performance bottlenecks can arise. Unnecessary re-renders, inefficient state management, and large bundle sizes can lead to slow applications. This guide covers practica...
  • react
  • frontend
  • software-development
  • performance
1 Reactions 2 Comments
robharris90 • 6 days • in Tutorials • 2 min read
Finding the slow part of a WooCommerce page with Query Monitor
Query Monitor is a free WordPress plugin by John Blackbourn. It adds a panel to the admin toolbar that shows what one page load did: database queries, hooks, HTTP calls, PHP errors and the template that rendered the page. On a WooCommerce store it an...
  • wordpress
  • woocommerce
  • php
  • performance
2 Reactions 1 Comments
Alok kumar singh • 6 days • in Articles • 9 min read
Shipping a 4K Wallpaper App Without Running Out of Memory: ImageIO Downsampling and Core Image
Originally published at https://bestlatestapps.com/blog/shipping-a-4k-wallpaper-app-without-running-out-of-memory/https://bestlatestapps.com/blog/shipping-a-4k-wallpaper-app-without-running-out-of-memory/ Decoded-image maths, thumbnails that don't d...
  • ios
  • swift
  • performance
  • imageio
0 Reactions 0 Comments
sarkardeba5684 • 6 days • in Articles • 1 min read
PS4 Pro Belize DDR3 patch v2
The last time the DDR3 memory on PS4 pro has a critical problem it was capped under 11mb/s speed how much I tied I failed every time then I notice something while debugging through the southbridge well it turns out DDR3 has it's own southbridge DMA...
post-cover-32257
  • debugging
  • hardware
  • linux
  • performance
0 Reactions 0 Comments
Built2Win • Oct 22 • in Articles • 1 min read
Image SEO in 2026: Alt Text, Modern Formats and Fast Loading
Image SEO in 2026 boils down to three jobs: describe every image accurately, deliver it fast, and make it discoverable and attributable. This guide covers each with copy-ready HTML, sticking to what Google, web.dev and the browser makers actually doc...
  • image-seo
  • performance
  • core-web-vitals
  • accessibility
2 Reactions 0 Comments
alQuerta • Oct 21 • in Articles • 5 min read
Why Does a Website Become Slow, and How Can We Fix It?
As a web developer, one thing I find interesting is that building a website is not just about making it look good. A website also needs to be fast, reliable, and easy to use. Sometimes, a website looks perfect during development, but after adding mo...
  • webdevelopment
  • performance
  • coding
3 Reactions 1 Comments
Built2Win • Oct 18 • in Articles • 1 min read
INP, the Core Web Vital That Replaced FID: How to Fix It
Interaction to Next Paint tracks how fast a page shows a visible reaction to a click, tap or key press. It took over from First Input Delay as a Core Web Vital on March 12, 2024. Good is 200 milliseconds or less and poor is over 500, measured at the ...
  • inp
  • core-web-vitals
  • performance
  • javascript
0 Reactions 0 Comments
Alaa Samy • Oct 17 • in Tutorials • 6 min read
🔥 30 Days of Frontend — Day 5: React DevTools Profiler
When a React application starts feeling slow, one of the first things developers often do is reach for useMemo, useCallback, or React.memo. We've all seen this pattern: A component renders more often than expected. The UI feels sluggish when inter...
post-cover-31532
  • reactjs
  • performance
  • frontenddevelopment
  • webdevelopment
2 Reactions 0 Comments
Posted in JavaScript Dev group
Joemetry • Oct 15 • in Articles • 1 min read
The Memory Leak in addEventListener You’re Ignoring
Event listeners on dynamic elements or SPA routing are silent performance killers. If you attach an event listener to window or a persistent parent node inside a component and don’t clean it up when the component unmounts, that DOM reference stays in...
post-cover-30737
  • javascript
  • performance
  • webdev
  • frontend
0 Reactions 0 Comments
Kyle Neary • Oct 14 • in Articles • 7 min read
Why Does a Website Get Slower Over Time? A Web Developer’s Approach to Finding the Real Problem
As a web developer, one thing I’ve learned is that a website can work perfectly during development but behave very differently after real users start using it. A page loads quickly when there are only a few records in the database. Buttons respond i...
  • webdevelopment
  • performance
  • softwareengineering
4 Reactions 1 Comments
firatcelik • Oct 12 • in Articles • 16 min read
Python 3.15 Is Not a Speed Release for Data Teams. It Is an Operations Release.
Originally published on DEV.to: https://dev.to/firfircelik/python-315-is-not-a-speed-release-for-data-teams-it-is-an-operations-release-5fbo Python 3.15.0 shipped on October 9, 2026 release posthttps://blog.python.org/2026/10/python-3150-final-is-he...
post-cover-30776
  • python
  • dataengineering
  • performance
  • security
1 Reactions 0 Comments
Figsh • Oct 11 • in Tutorials • 4 min read
Build a Pure CSS Radar Chart — Lightweight, Max Performance
Most radar charts pull in SVG path math or a JavaScript charting library. You can skip both. With st-core.fscss, a spider radar chart is: an FSCSS array of scores 0–100 polar coordinates stored as CSS variables --st-sxN, --st-syN shapes drawn wit...
post-cover-30746
  • fscss
  • css
  • performance
  • opensource
0 Reactions 0 Comments
Alaa Samy • Oct 11 • in Tutorials • 6 min read
🔥 30 Days of Frontend — Day 4: Memoization in React
Have you ever looked at a React component and thought: “Maybe I should wrap this function with useCallback, this calculation with useMemo, and the component with React.memo?” You're not alone. Memoization is one of the most frequently discussed Re...
post-cover-30728
  • react
  • javascript
  • frontenddevelopment
  • performance
6 Reactions 1 Comments
Rostislav V. Romanenko • Oct 10 • in Articles • 10 min read
The Magic of Branchless in FinTech: How to Tame the NASD 30/360 Financial Standard and Solve the IRR Equation Without a Single IF
Calendar and interest calculations are a hidden "landmine" of the global financial system. Regulators and financiers have been unable to devise a simple date-calculation formula for several centuries. The US 30/360 NASD standard has been criticized m...
  • algorithms
  • fintech
  • opensource
  • performance
4 Reactions 0 Comments
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