optimization
Automatically optimize files uploaded to Immich in order to save storage space.
Immich Upload Optimizer is a proxy designed to be placed in front of the Immich server. It intercepts file uploads and uses an external CLI program (by default JPEG-XL, Caesium and HandBrake) to optimize, resize, or compress images and videos before they are stored on the Immich server. This helps save storage space on the Immich server by reducing the size of uploaded files.
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.
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.
Auto-suspend inactive X11 applications. 👀 💻 💤 🔋 Save battery by auto-suspending unfocused X11 applications.
Modern GUI applications tend to use significant system resources, such as CPU time, even when they're not being actively used.
XSuspender configurably suspends application activity (using Unix signal SIGSTOP or a custom shell script) shortly after its window(s) loses focus. When the window regains focus, the application is transparently resumed exactly where it had left off.
Installs ucacher (Earthly Universal Caching) in a GHA job.
ucacher is a CLI tool that tracks which files are accessed by commands, skips unnecessary executions, and restores cached outputs when possible, resulting in significantly reduced execution times.
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.
PostgreSQL Remote Control.
temBoard is a powerful management tool for PostgreSQL. It allows to observe, optimize, or configure PostgreSQL instances.
PostgreSQL log analyzer.
pgBadger is a PostgreSQL log analyzer built for speed with fully detailed reports and professional rendering.
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:
Postgres performance at any scale. PostgreSQL Tuning
Deliver consistent database performance and availability through intelligent tuning advisors and continuous database profiling.
A performance dashboard for Postgres
Wireit upgrades your npm/pnpm/yarn scripts to make them smarter and more efficient.
Statistically Sound Performance Evaluation.
Stabilizer is a system that enables the use of the powerful statistical techniques required for sound performance evaluation on modern architectures. Stabilizer forces executions to sample the space of memory configurations by repeatedly rerandomizing layouts of code, stack, and heap objects at runtime.
BOLT is a post-link optimizer developed to speed up large applications. It achieves the improvements by optimizing application's code layout based on execution profile gathered by sampling profiler, such as Linux perf tool.
Towards Minimum MSE Photo-Realistic Image Restoration.
PMRF is a novel photo-realistic image restoration algorithm. It (provably) approximates the optimal estimator that minimizes the Mean Squared Error (MSE) under a perfect perceptual quality constraint.
Statistically rigorous benchmark runner for the web.
tachometer is a tool for running benchmarks in web browsers. It uses repeated sampling and statistics to reliably identify even tiny differences in runtime.
A simple profiler for PHP.
A simple & straight-to-the-point PHP profiling extension with its built-in web UI.
Repack docker images to optimize for pulling speed.
This tool repacks a Docker image into a smaller, more efficient version that makes it significantly faster to pull. It does this by using a few different techniques such as removing redundant data and improving compression ratios.
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.
PGTune calculate configuration for PostgreSQL based on the maximum performance for a given hardware configuration.
It isn't a silver bullet for the optimization settings of PostgreSQL. Many settings depend not only on the hardware configuration, but also on the size of the database, the number of clients and the complexity of queries. An optimal configuration of the database can only be made given all these parameters are taken into account.
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.
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.
deep learning at the speed of light.
Luminal is a deep learning library that uses composable compilers to achieve high performance.
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:
Make React 70% faster
The drop-in optimizing compiler for React. Gain big performance wins for UI and data heavy React apps. Dead simple to use – try it out now!
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.
PHP Benchmarking framework.
PHPBench is a benchmark runner for PHP analogous to PHPUnit but for performance rather than correctness.
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.
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.
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.
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.
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.
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.
Provide videos with a supercharged focus on visual performance. This custom element renders just like the real thing but approximately 224× faster.
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.
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.
BlurHash is a compact representation of a placeholder for an image.
Related contents:
A hyperparameter optimization framework. Optimize Your Optimization.
An open source hyperparameter optimization framework to automate hyperparameter search
GPU Accelerated JavaScript.
GPU.js is a JavaScript Acceleration library for GPGPU (General purpose computing on GPUs) in JavaScript for Web and Node. GPU.js automatically transpiles simple JavaScript functions into shader language and compiles them so they run on your GPU. In case a GPU is not available, the functions will still run in regular JavaScript.
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.
Optimize images for web on the fly. imgproxy is the blazing fast and secure image processing tool.
Compress PNG, JPG, and More. With this online image compressor, it is super easy to compress your JPG or PNG images at a fast speed. This is a browser-based image processor that helps you compress your images with a negligible waiting time. The best thing about this image process is that it is secure, private and works offline with zero limitations. Moreover, you also don't harm the environment because there is literally no carbon emission in the process.
JS performance - Dev tool. Benchmark your JS snippets for an optimized performance.
A free and open source tool for optimizing images and vector graphics.
Lepton is a tool and file format for losslessly compressing JPEGs by an average of 22%.
Pyston is an open source Python implementation that aims to be both highly compatible and high-performance. It uses modern JIT techniques on top of LLVM, and natively supports many CPython C extension modules via a recompile.
OverTheBox s'appuie sur plusieurs connexions internet pour les agréger et vous offrir plus de débit. Avec une variété de connexions, le trafic internet est réparti automatiquement et cela permet aussi d'être tolérant à une coupure momentanée d’un accès. OverTheBox sécurise votre connectivité, mais également le contenu de vos échanges. Le chiffrement AES256 est activé par défaut jusqu'au réseau hébergeur d'OVH.
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.
Upload up to 20 files in JPEG and PNG formats. Click thumbnails in the queue to select images. Use the slider to control the compression level and mouse/gestures to compare images. Click 'Save' to download the result.
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.
Run a free website speed test from multiple locations around the globe using real browsers (IE and Chrome) and at real consumer connection speeds. You can run simple tests or perform advanced testing including multi-step transactions, video capture, content blocking and much more. Your results will provide rich diagnostic information including resource loading waterfall charts, Page Speed optimization checks and suggestions for improvements.
Crosbrowser & lightweight way to check if user is looking at the page or interacting with it.
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.
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.
On-The-Fly Image Resizing, On-the-fly LESS, SASS, CoffeeScript Compiling, CSS & JavaScript Combining/Minifying, and Smart Client Side and Server Side Caching