Install
Please confirm you are human
This browser or connection looks automated. Press and continuously hold the control for 3 seconds to enable Google-hosted web results and, when separately allowed, AI-assisted answers.
A successful check enables 100 search requests. Interactive access does not authorize scraping, systematic collection, or reuse of search output.
News
Your app went viral. Adding servers made it worse. Here's why.
12+ hour, 43+ min ago (94+ words) It's midnight, someone huge shares your app, 100,000 people show up — and the page dies. You add three servers. It gets worse. The rule that finally made this click for me: before you add capacity, find out where the request is…...
Building a rate limiter, why even use Redis.
16+ hour, 11+ min ago (106+ words) Well I failed a amazon OA because of a rate limiting question, So I have built this rate limiter from... Tagged with redis, typescript, software, beginners....
Valkey 9.1 vs Redis 8.4: The Fork Finally Grew Up
17+ hour, 29+ min ago (456+ words) Back in March 2024, when Redis changed its license, the advice most teams got was simple: wait and see. Valkey, the Linux Foundation fork, was brand new. It was essentially Redis 7.4 with a different governance badge, and nobody wanted to migrate…...
Merge Sort: Sorting in O(n log n) Using Divide and Conquer
18+ hour, 36+ min ago (882+ words) Sorting is one of the most common problems in programming. You may need to sort: A simple sorting algorithm might work well for a small array, but performance becomes important when the input grows. Merge Sort can sort n elements…...
Day 16: Cosine Similarity and Semantic Search Basics
19+ hour, 33+ min ago (495+ words) Cosine similarity measures how closely two vectors point in the same direction, regardless of their length. Picture a vector as an arrow from the origin in space. Cosine similarity looks at the angle between two such arrows. If they point…...
Agent memory and questions to ask
20+ hour, 20+ min ago (575+ words) Tell a coding agent that your project runs tests with npm test. Start a new session and ask it how to run the tests. It answers correctly. Good first result. Now tell it the project has migrated to pnpm. Start…...
Two Sources of Truth Will Always Disagree
2+ day, 11+ min ago (316+ words) Somewhere in your system the same fact is stored twice. A count in a column and the rows it is counting. A status on the order and a status on the payment. An email in the profile service and the…...
How Facebook Page bulk deletion actually works with the Graph API
2+ day, 15+ hour ago (405+ words) There is no Meta endpoint called “bulk delete Facebook Page posts.” If you have ever searched for one, you already know the trap: Business Suite can delete a small batch, Activity Log is click-hell, and Chrome extensions pretend there is…...
How To Design a Database for an E-commerce App
3+ day, 20+ hour ago (85+ words) A Step-by-Step Guide to Building an online... Tagged with python, beginners, database, marketing....
Granite-4.0-1B vs Mercury 2.5: Benchmarks & Cost
4+ day, 21+ hour ago (300+ words) Keep up with the models you depend on. Follow price changes, retirements, and API updates.Follow the models you depend on. Estimated · Public rank #195 Updated September 8, 2026. Public scores include evidence status and uncertainty. They are not guarantees for a specific…...