optimization
SQL Indexing and Tuning e-Book for developers. Use The Index, Luke covers Oracle, MySQL, PostgreSQL, SQL Server, ...
A site explaining SQL indexing to developers—no crap about administration. SQL indexing is the most effective tuning method—yet it is often neglected during development. Use The Index, Luke explains SQL indexing from grounds up and doesn’t stop at ORM tools like Hibernate.
Make images smaller using best-in-class codecs, right in the browser.
Squoosh is an image compression web app that reduces image sizes through numerous formats. Squoosh does not send your image to a server. All image compression processes locally.
A Flexible Framework for Experiencing Cutting-edge LLM Inference Optimizations.
KTransformers, pronounced as Quick Transformers, is designed to enhance your 🤗 Transformers experience with advanced kernel optimizations and placement/parallelism strategies.
KTransformers is a flexible, Python-centric framework designed with extensibility at its core. By implementing and injecting an optimized module with a single line of code, users gain access to a Transformers-compatible interface, RESTful APIs compliant with OpenAI and Ollama, and even a simplified ChatGPT-like web UI.
Ecosystem Performance. Cleanup, Speedup, Levelup. One package at a time.
The e18e project is an initiative to bring together the groups and individuals who are passionate about improving performance of the JavaScript ecosystem.
Related contents:
Data-driven energy timing. The intelligent & developer-friendly EMS to support real-time energy flexibility apps, rapidly and scalable.
The FlexMeasures Platform is the intelligent & developer-friendly EMS (energy management system) to support real-time energy flexibility apps, rapidly and scalable.
In a nutshell, FlexMeasures turns data into optimized schedules for flexible assets like batteries and heat pumps, or for flexible industry processes.
Profile-sync-daemon (psd) is a small pseudo-daemon designed to manage the
browser's profile in tmpfs and to periodically sync it back to the physical
disc (HDD/SSD).
It accomplishes this via a symlinking step and an innovative use of rsync to
maintain backup and synchronization between the two.
One of the major design goals of psd is a transparent user experience.
AI Code Retrieval with 95% Token Reduction.
Model-agnostic MCP server indexes your repo and hands any AI agent — Claude, GPT, Gemini — the exact function, class, or constant. No more 200K-token file dumps. More wins, fewer timeouts, lower bill.
Cut AI token costs 95%+ on code exploration. The leading MCP server for precise, symbol-level GitHub code retrieval via tree-sitter AST. Works with Claude Code, Cursor & any MCP client. 313B+ tokens saved.
Related contents:
This plugin generates static html files from your dynamic WordPress blog. After a html file is generated your webserver will serve that file instead of processing the comparatively heavier and more expensive WordPress PHP scripts.
rtcqs is a Python utility to analyze your system and detect possible bottlenecks that could have a negative impact on the performance of your system when working with Linux audio.
Related contents:
Finetune AI & LLMs faster. Web UI for training and running open models like Gemma 4, Qwen3.6, DeepSeek, gpt-oss locally.
Unslow AI training & finetuning Get 30x faster with unsloth. 5X faster 60% less memory QLoRA finetuning. Finetune Mistral, Gemma, Llama 2-5x faster with 70% less memory!
Related contents:
Zen Patched Kernel Sources.
Zen Kernel is a fork of Linux that applies out-of-tree features, early backports, and fixes, that impact desktop usage of Linux. Many of the features that change system behavior are hidden behind CONFIG_ZEN_INTERACTIVE, while many others are always available or configurable (such as CONFIG_MUQSS), for custom builds and distributions of Zen Kernel.
Source: LINUX Unplugged: 593: Zen and the Art of Kernel Preempting.
Website Speed and Performance Optimization.
GTmetrix can help you develop a faster, more efficient, and all-around improved website experience for your users.
Doom port for DOS, optimized to be as fast as possible!
Related contents:
NumPy & SciPy for GPU.
CuPy is a NumPy/SciPy-compatible array library for GPU-accelerated computing with Python. CuPy acts as a drop-in replacement to run existing NumPy/SciPy code on NVIDIA CUDA or AMD ROCm platforms.
One CLAUDE.md file. Keeps Claude responses terse. Reduces output verbosity on heavy workflows. Drop-in, no code changes.
Optimizes static websites for best user experience and best Core Web Vitals scores.
jampack is a post-processing tool that takes the output of your Static Site Generator (aka SSG) and optimizes it for best user experience and best Core Web Vitals scores.
Fast container image distribution plugin with lazy pulling .
Pulling image is one of the time-consuming steps in the container lifecycle. Research shows that time to take for pull operation accounts for 76% of container startup time[FAST '16]. Stargz Snapshotter is an implementation of snapshotter which aims to solve this problem by lazy pulling. Lazy pulling here means a container can run without waiting for the pull completion of the image and necessary chunks of the image are fetched on-demand.
Related contents:
jemalloc is a general purpose malloc(3) implementation that emphasizes fragmentation avoidance and scalable concurrency support. jemalloc first came into use as the FreeBSD libc allocator in 2005, and since then it has found its way into numerous applications that rely on its predictable behavior. In 2010 jemalloc development efforts broadened to include developer support features such as heap profiling and extensive monitoring/tuning hooks. Modern jemalloc releases continue to be integrated back into FreeBSD, and therefore versatility remains critical. Ongoing development efforts trend toward making jemalloc among the best allocators for a broad range of demanding applications, and eliminating/mitigating weaknesses that have practical repercussions for real world applications.
Related contents:
libreactor is a high performance, robust and secure, generic event-driven application framework for Linux.
libreactor is a high performance, robust and secure, generic event-driven application framework for Linux. The design goal is to minimize software overhead, cpu usage, energy consumption and environmental footprint. libreactor is directly built on top of the Linux kernel io_uring system call interface, offering both much simplified access to low level asynchronous kernel calls, as well as high level event-driven abstractions such as HTTP servers. Furthermore libreactor is built completely without third-party dependencies, minimizing supply chain risk.
A drop-in image optimization service for the modern web.
PicPerf is a drop-in service for making your website's images light, modern, and fast. Just prefix your image URLs or use an official integration (WordPress, Statamic, & more) to start reaping the benefits.
Related contents:
Provide videos with a supercharged focus on visual performance. This custom element renders just like the real thing but approximately 224× faster.
Web performance and quality analysis (beta) DareBoost est un outil d'analyse et de monitoring en qualité et performance web. Obtenez en quelques instants les bonnes pratiques du web et des conseils experts au sein d'un rapport sur mesure.
Perf Track is a project that aims to track and measure the performance of sites that use popular JavaScript frameworks and libraries. It is not an exercise to compare the performance of frameworks against each other.
Uptime and performance monitoring made easy Be the first to know when your website is down.
Web Monitoring and SEO Site Checker Tool .
Issue Detector streamlines the process of optimizing your website's SEO and maintaining its efficiency. By adopting a cyclical approach, you can continuously analyze your site's metrics, implement targeted improvements, and track the impact of your efforts. This ongoing cycle of review and adjustment ensures that your website stays ahead of the curve, consistently adapting to ever-changing search engine algorithms and user preferences, driving success and growth for your online presence.
Forum software reinvented. For too long have Internet forums been stuck in the past—bloated, slow, unimaginitive, ugly. esoTalk has been built from the ground up to take advantage of modern web technologies and provide the perfect balance between simplicity, power, speed, and scalability.
Video-Based AI Memory 🧠📹.
Video-based AI memory library. Store millions of text chunks in MP4 files with lightning-fast semantic search. No database needed.
Memvid revolutionizes AI memory management by encoding text data into videos, enabling lightning-fast semantic search across millions of text chunks with sub-second retrieval times. Unlike traditional vector databases that consume massive amounts of RAM and storage, Memvid compresses your knowledge base into compact video files while maintaining instant access to any piece of information.
A simple profiler for PHP.
A simple & straight-to-the-point PHP profiling extension with its built-in web UI.
Scripts to build a trimmed-down Windows 11 image.
This is a script to automate the build of a streamlined Windows 11 image, similar to tiny11. My main goal is to use only Microsoft utilities like DISM, and nothing external. The only executable included is oscdimg.exe, which is provided in the Windows ADK and it is used to create bootable ISO images. Also included is an unattended answer file, which is used to bypass the MS account on OOBE and to deploy the image with the /compact flag. It's open-source, so feel free to add or remove anything you want! Feedback is also much appreciated.
This book uses MySQL challenges as case studies to explore problem analysis and resolution strategies. Readers will gain a deeper appreciation for logical reasoning, data structures, algorithms, and more through practical examples and insightful discussions.
A self-hosted local image compressor that runs in your browser.
MAZANOKE is a simple image compressor and converter that runs entirely in your browser. No external uploads, works offline as a web app, and is powered by Browser Image Compression.
Related contents:
Shell scripts to help manage, clean, and optimize your macOS system. Includes app cleanup, path management, and more.
CR - Mac Helper is a personal project designed to streamline Mac maintenance and management. It's born out of the need to automate cleaning, auditing, and optimizing my macOS environment after years of installing, uninstalling, and experimenting with countless applications and tools. This script helps keep track of system health, remove unnecessary files, and generally keep my Mac running smoothly. Sharing is caring, so here it is!
Related contents:
PostgreSQL Remote Control.
temBoard is a powerful management tool for PostgreSQL. It allows to observe, optimize, or configure PostgreSQL instances.
Pinba is a MySQL storage engine that acts as a realtime monitoring/statistics server for PHP using MySQL as a read-only interface.
It accumulates and processes data sent over UDP by multiple PHP processes and displays statistics in a nice human-readable form of simple "reports", also providing read-only interface to the raw data in order to make possible generation of more sophisticated reports and stats.
Faster subsequent page-loads by prefetching or prerendering in-viewport links during idle time.
This project aims to be a drop-in solution for sites to prefetch links based on what is in the user's viewport.
System Optimization through Reflective Text Evolution. Optimize prompts, code, and more with AI-powered Reflective Text Evolution.
GEPA (Genetic-Pareto) is a framework for optimizing arbitrary systems composed of text components—like AI prompts, code snippets, or textual specs—against any evaluation metric. It employs LLMs to reflect on system behavior, using feedback from execution and evaluation traces to drive targeted improvements. Through iterative mutation, reflection, and Pareto-aware candidate selection, GEPA evolves robust, high-performing variants with minimal evaluations, co-evolving multiple components in modular systems for domain-specific gains.
Related contents:
Converts PNG/JPG images to AVIF, WebP and JPG in multiple sizes. Automate your web image workflow with this Composer dev-tool. 🚀 .
Works with Laravel, Symfony, and vanilla PHP projects.
Related contents:
Run Third-Party Scripts From A Web Worker.
Partytown is a lazy-loaded library to help relocate resource intensive scripts into a web worker, and off of the main thread. Its goal is to help speed up sites by dedicating the main thread to your code, and offloading third-party scripts to a web worker.
PoWA is a PostgreSQL Workload Analyzer that gathers performance stats and provides real-time charts and graphs to help monitor and tune your PostgreSQL servers.
a 744-billion-parameter mind, on your desk tiny engine, immense model.
Run GLM-5.2 — 744B Mixture-of-Experts — on hardware you already own. Pure C, zero dependencies, experts staged just-in-time across VRAM, RAM and disk. The galaxy behind this text is real: the model's measured expert atlas.
Make your AI coding agent smarter. CLI proxy.
CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies.
rtk filters and compresses command outputs before they reach your LLM context. Single Rust binary, zero dependencies, <10ms overhead.
Related contents:
Compress WebP, PNG, JPEG and Gif images intelligently.
Pic Smaller is a super easy-to-use online image compression tool. Its UI is intuitive and supports compression configuration. At the same time, because it is purely local compression without any server-side logic, it is completely safe.
Automated Kubernetes workload resource tracking and adjustment.
Ballast is a Kubernetes operator that automatically right-sizes workload resource requests and limits based on real operational history. It is a more active alternative to Fairwinds Goldilocks: rather than suggesting changes, it applies them — at admission time and on running pods via in-place resize (Kubernetes 1.35+).
Deliver instant apps at scale. Build instantly-interactive web apps without effort.
Qwik is a new kind of web framework that can deliver instant loading web applications at any size or complexity. Your sites and apps can boot with about 1kb of JS (regardless of application complexity), and achieve consistent performance at scale.
Qwik offers the fastest possible page load times - regardless of the complexity of your website. Qwik is so fast because it allows fully interactive sites to load with almost no JavaScript and pickup from where the server left off.
As users interact with the site, only the necessary parts of the site load on-demand. This precision lazy-loading is what makes Qwik so quick.
bpftune aims to provide lightweight, always-on auto-tuning of system behaviour. The key benefit it provides are
- by using BPF observability features, we can continuously monitor and adjust system behaviour.
- because we can observe system behaviour at a fine grain (rather than using coarse system-wide stats), we can tune at a finer grain too (individual socket policies, individual device policies etc).
Related contents:
Hypothetical Indexes for PostgreSQL. HypoPG is a PostgreSQL extension adding support for hypothetical indexes.
An hypothetical -- or virtual -- index is an index that doesn't really exists, and thus doesn't cost CPU, disk or any resource to create. They're useful to know if specific indexes can increase performance for problematic queries, since you can know if PostgreSQL will use these indexes or not without having to spend resources to create them.
fuite is a CLI tool for finding memory leaks in web apps.
Related contents:
We redesigned Windows for gaming. Atlas is a Windows version designed for gamers. Atlas users can enjoy higher framerate, lowered input delay and latency. Great for people on both low-end system and high-end gaming machine.
A Bloat Aware Filesystem for Container Debloating.
BLAFS is a bloat-aware filesystem for container debloating. The design principles of BLAFS are effective, efficient, and easy to use. It detects the files used by the container, and then debloats the container by removing the unused files. The debloated containers are still functional and can run the same workload as the original containers, but with a much smaller size and faster deployment.
A PTY proxy that tames Claude Code's massive terminal updates using VT-based rendering.
Claude Code uses synchronized output to update the terminal atomically. It wraps output in sync markers (\x1b[?2026h ... \x1b[?2026l) so the terminal renders everything at once without flicker.
The problem: Claude Code sends entire screen redraws in these sync blocks - often thousands of lines. Your terminal receives a 5000-line atomic update when only 20 lines are visible. This causes lag, flicker, and makes scrollback useless since each update clears history.
On-The-Fly Image Resizing, On-the-fly LESS, SASS, CoffeeScript Compiling, CSS & JavaScript Combining/Minifying, and Smart Client Side and Server Side Caching
Article présentant différents moyen et outils pour optimiser un site Wordpress.
With Site-Perf.com, you get an accurate, realistic, and helpful estimation of your site's loading speed. The script fully emulates natural browser behaviour downloading your page with all the images, CSS, JS and other files – just like a regular user. Spot bottlenecks, reach perfect performance and balance your site load with Site-Perf.com, a smart and flexible testing tool. Focus on important things while Site-Perf.com delivers the speed facts straight to your screen. Try it right now!
Image Cache is a tiny PHP class that accepts a .png, .jpg, or .gif image then compresses, moves, and caches the image in the user's browser. It then returns the new source of the image to be printed in an image tag.
Reduce the space taken up by games and programs on disk by using native Windows APIs.
CompactGUI transparently compresses your games and programs reducing the space they use without affecting their functionality. It works directly with the Win32 API to achieve the same thing as the native compact.exe command-line tool available from Windows 10 onwards.
Related contents:
Automate your web typography workflow with this Composer dev-tool. 🚀
Converts TTF fonts to optimized WOFF2 subsets using Python FontTools. Works with Laravel, Symfony, and vanilla PHP projects.
Related contents:
Prometheus-based Kubernetes Resource Recommendations. Get recommendations based on your existing data in Prometheus/Coralogix/Thanos/Mimir and more!
Robusta KRR (Kubernetes Resource Recommender) is a CLI tool for optimizing resource allocation in Kubernetes clusters. It gathers pod usage data from Prometheus and recommends requests and limits for CPU and memory. This reduces costs and improves performance.
Related contents: