The hottest Performance Substack posts right now

And their main takeaways
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Top Finance Topics

Indexing/Querying strategy with BoltDB

Hasen Judi • 107 implied HN points • 31 Mar 23
🕹 Technology Database Querying Performance Flexibility
  1. In a B-Tree based storage system like BoltDB, you need to be explicit about indexing and querying data, unlike relational databases that automatically handle indexing.
  2. By maintaining bidirectional mappings between terms and targets, and incorporating priorities for sorting, you can efficiently retrieve and sort data without unnecessary overhead.
  3. BoltDB enables indexing data by any criteria, offering flexibility in ranking objects and improving relevance in search results, while eliminating the overhead associated with SQL databases.

Stars are treated differently

Klement on Investing • 1 implied HN point • 17 Dec 24
💰 Finance Investing Markets Forecasting Performance
  1. Star analysts have a bigger influence than regular analysts because their reports can move markets. They are rewarded for giving high-quality forecasts that help investors succeed.
  2. To become a star, analysts need to make good predictions, but staying a star often means making bold and risky calls instead of focusing on quality.
  3. Once an analyst becomes a star, they are judged less harshly for mistakes. This means they can take more risks and make big headlines, even if it doesn't always lead to good outcomes.

Why Go is currently my main programming language

Polymath Engineer Weekly • 31 implied HN points • 28 Nov 23
🕹 Technology Programming Developer Experience Stability Performance Tooling
  1. Go is a productive language with simple syntax and easy readability, making it accessible for new contributors.
  2. Go has fast build times, statically linked binaries for easy distribution, and a stable language ecosystem.
  3. Go offers good performance, low memory footprint, and useful built-in tooling for an awesome developer experience.
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Transduction of the Tragipanic

Covidian Æsthetics • 4 implied HN points • 20 Jan 25
🎨 Art & Illustration Theatre Aesthetics Performance Literary Critical Theory
  1. Theatre is like a lab for experiences, where ideas about reality are tested in performances. It helps explore how we perceive the world around us.
  2. Cancer is a central theme in certain plays, not as a character but as a force affecting everything. It represents deeper struggles within the stories.
  3. Understanding the way these plays work requires looking for hidden meanings and connections. The stories are more complex than they first appear.

The Cost of Poor Performers

Build To Scale • 19 implied HN points • 21 Aug 23
💼 Business Management Performance Feedback Recruitment Culture
  1. Quickly addressing poor performance is crucial for building a strong performance culture in a company.
  2. Identifying and managing poor performers is essential, especially in fast-growing organizations to maintain a high-performance environment.
  3. Giving clear feedback, setting expectations, and making decisions about poor performers promptly can lead to increased productivity and a stronger team.

Any Cables Monthly #10

AnyCable Broadcasts • 19 implied HN points • 09 Jun 23
🕹 Technology Podcasts Websockets Performance
  1. AnyCable v1.4 release candidate brings new Redis Streams-based broadcasting adapter and order guarantees for broadcasted messages.
  2. Podcast discusses Rails additions related to Action Cable and the development of improvements for AnyCable v1.4.
  3. Introduction of new tools like Polyphony 1.0.0 library for building concurrent Ruby applications and Mayu framework for server-side rendered web apps with live streaming capabilities.

Creatine 101

Austin's Analects • 19 implied HN points • 02 Jun 23
🏥 Health & Wellness Nutrition Fitness Supplements Performance Body
  1. Creatine is a substance naturally found in the body that helps improve muscular endurance, increase muscle mass, and even enhance cognitive function.
  2. Taking creatine can lead to benefits like being able to work out longer and harder, lift more weight, and improve focus.
  3. You can determine if creatine is working for you by monitoring an increase in strength, the ability to complete more reps, and potential weight gain from water retention.

It's Not You. It's Your Biochemistry

Neuro Athletics • 17 implied HN points • 11 Mar 24
🏥 Health & Wellness Biochemistry Physiology Performance Nutrition Recovery
  1. Your physiology and biochemistry, not your circumstances, play a key role in determining your potential and performance.
  2. Optimizing recovery is crucial for reaching peak performance, reducing risks of burnout and enhancing physiological resilience.
  3. Personalized approaches that consider unique biochemical and physiological profiles are vital in unlocking individual potential for peak performance.

Your Cells Are Starving for Creatine

Harnessing the Power of Nutrients • 2 HN points • 24 Jun 24
🏥 Health & Wellness Nutrition Supplementation Performance
  1. Creatine is essential for cells to perform various functions like vision, digestion, and brain power.
  2. Supplementation of creatine can optimize muscle and brain function, and it is crucial for maintaining healthy vision, digestion, hearing, and skin.
  3. The body's natural creatine synthesis is limited by the supply of arginine and methyl groups, with meat and fish being the most efficient sources, and supplementation is necessary for individuals with specific dietary requirements.

Most Dismal Swamp: MUSH

Do Not Research • 39 implied HN points • 16 Oct 22
🎨 Art & Illustration Speculation Fiction Performance
  1. The term MUSH (Multi-User Shared Hallucination) originated in online text-based role-playing games. It reflects communal investment and social codes that create an immersive virtual space distinct from the real world.
  2. Most Dismal Swamp explores community-building in online and offline spaces, delving into encrypted cultures and the challenges of maintaining communities in digitally mediated environments.
  3. Most Dismal Swamp is a diverse art project operating as a model for collaborative speculation. It uses the concept of swamps to navigate the complexities and blurred boundaries of our mixed reality paradigm.

You can't miss a day

andrewglynch • 2 implied HN points • 04 Nov 24
🎾 Sports Athletes Training Performance Coaching Motivation
  1. Consistency is key to success. You need to practice regularly, even if it's just a little bit each day.
  2. Commitment is important. You can't skip practice for any reason; find a way to get it done no matter what.
  3. Small daily efforts lead to big achievements over time. A simple 30-minute practice can change your life if you stick with it for years.

Power of Redis: A Deep Dive into Caching Systems

The ZenMode • 15 HN points • 10 Feb 24
🕹 Technology Caching Data Structures Performance Limitations Deployment
  1. Caching like Redis stores frequently used data for faster retrieval, improving response times, reducing database load, and leading to cost-effectiveness in running high-traffic applications.
  2. Redis is fast due to in-memory storage, optimized data structures, reduced I/O operations, single-threaded architecture, and event-driven design, but has limitations like limited capacity and issues with data persistence.
  3. Choosing the right caching system, like Redis, requires considering factors like data size, access patterns, consistency requirements, and fault tolerance for high availability and durability.

Go fix your bugs

Basta’s Notes • 40 implied HN points • 04 May 23
🕹 Technology Coding Security Performance Validation
  1. Always validate the types of values your API accepts to prevent potential security vulnerabilities.
  2. Be cautious with regular expressions to avoid performance issues like ReDoS (Regular Expression Denial of Service).
  3. Check and handle subdomains and domain name validation to prevent unexpected bugs or failures in your application.

System Design Concepts: An in-depth guide to Database sharding

Engineering At Scale • 30 implied HN points • 29 Jul 23
🕹 Technology Systems Databases Scaling Performance Architecture
  1. Database sharding splits a large dataset into chunks stored on different machines, increasing storage capacity and distributing queries for better performance.
  2. Sharding allows for high availability by avoiding a single point of failure and higher read/write throughput by distributing query load.
  3. Cost and maintenance overhead are drawbacks of sharding, and it differs from partitioning where data is stored on a single machine.

How Algorithms Exploit Laziness[Technique Tuesdays]

Technology Made Simple • 19 implied HN points • 16 Nov 22
🕹 Technology Algorithms Performance Coding
  1. Lazy evaluation in programming delays evaluation until the value is needed, which helps save computational resources and optimize performance.
  2. Partial evaluation allows quicker calculations by finding the first false value in a series of boolean operations, speeding up the process.
  3. Just-in-time compilation in computing involves compiling code at runtime, reducing strain on the system by loading only necessary parts, like in video games with large maps.

LL #38 | Peak Performance is now the Leadership Lab

The Leadership Lab • 19 implied HN points • 25 Sep 22
🏥 Health & Wellness Performance Rest Mental health Self-Improvement Mindfulness
  1. The Leadership Lab is a place for intentional experimentation and personal growth, emphasizing engagement and action with the ideas shared.
  2. Acceptance of things beyond our control is key to navigating life's ebbs and flows, fostering resilience and reducing unnecessary suffering.
  3. Balancing intense effort with sacred rest is crucial for peak performance, advocating for oscillation and avoiding a constant mid-level effort.

Trust is a design issue

Sunday Letters • 59 implied HN points • 06 Dec 21
🕹 Technology Software User Experience Design Privacy Performance
  1. When creating software, you're making promises to users about reliability and performance. If users can't trust your software to work well, they feel let down.
  2. Over time, adding too many features can slow down software and make it complicated. It's important for teams to keep user experience and performance in mind as they grow.
  3. Strong teams think carefully about the promises they make with each new feature. They aim to keep users happy and avoid feeling like they've broken that trust.

Episode 38: Better Built By Burkhard

burkhardstubert • 19 implied HN points • 16 Mar 23
🕹 Technology Software Development Continuous Delivery Metrics DevOps Performance
  1. Continuous Delivery (CD) means making software ready for users quickly and consistently. It's important for teams to measure their progress with metrics to see how well they are doing.
  2. High-performance teams benefit from focusing on both stability and throughput to deliver great software. Balancing these two areas helps reduce bugs while keeping updates frequent.
  3. Setting clear goals for deployment and recovery times can lead to better software and happier customers. Fast response to issues helps retain customer trust and satisfaction.

RISC-V vector crypto spec freeze update

Fprox’s Substack • 20 implied HN points • 25 Jun 23
🕹 Technology Crypto Extensions Specifications Performance
  1. The RISC-V vector crypto specification has reached the frozen milestone after approval by the ARC and RVIA committee chairs.
  2. Changes include revised instructions for better integration, addition of new instructions like 'vgmul.vv', and splitting the Zvkb extension into Zvbb and Zvbc.
  3. The new Zvkt extension emphasizes data-independent timing for secure software implementations and the specification introduces meta-extensions for different cryptography suites and simplified illegal instruction conditions.

Straight Line Crazy

Castalia • 19 implied HN points • 24 Dec 22
🎭️ Culture Theater Art Performance Literature
  1. The play 'Straight Line Crazy' talks about Robert Moses and his work but feels more like a history lesson than a dramatic performance. The characters mostly explain things to each other rather than have real conversations.
  2. Ralph Fiennes plays Robert Moses, and while the acting is good, the story seems to stick to familiar ideas and avoids taking big risks. It makes you wonder if there could be a more exciting way to tell this story.
  3. The ending gives Moses the final word, showing how he believed he was a great builder who operated outside the normal rules. His character illustrates the complex nature of vision and power in city planning.

💥 The Slow Software Paradox, Reimagining SQLite, Dev’s Viral 2K-Star Plugin, & More

ppdispatch • 2 implied HN points • 17 Dec 24
🕹 Technology Software Development Performance Open Source Innovation
  1. Modern software is performing worse than ever, not because computers are slow, but because developers prioritize new features over efficiency and understanding. This leads to apps taking longer to do simple tasks.
  2. A new project called Limbo is completely rewriting SQLite in Rust to be faster and more reliable. It's designed for today's tech needs and can run faster than old SQLite versions.
  3. A developer has gained huge success with a Neovim plugin made on a basic device, showing that consistent work and community engagement can lead to great results, even with low-cost tools.

How Plugin Creep is Killing Your Editor's Performance

Wetware Snippets • 5 implied HN points • 14 Apr 24
🕹 Technology Software Development Productivity Tools Performance
  1. Plugin Creep happens when you add too many plugins to your editor, slowing it down and making it harder to use. It's important to keep your editor lean for a better experience.
  2. Every plugin takes up resources, and too many can lead to crashes and conflicts. Before adding new ones, ask yourself if you really need them.
  3. To avoid problems, try using built-in features of your editor instead of installing new plugins. If you find yourself getting frustrated, consider if your editor is the right fit for your workflow.

The Fall of the House of Yes

Gideon's Substack • 14 implied HN points • 01 Sep 23
🎭️ Culture Theater Literature Performance Adaptation Drama
  1. The play Richard II is a tricky one to stage due to its political and poetical language.
  2. The current production of Richard II at Stratford Festival portrays the title character as the king of Studio 54, engaging with a contemporary interpretation.
  3. The adaptation of the play attempts to revalue Richard as queer, Black, and fabulous, but the original flaws in the character as a king remain evident.

Will PostgreSQL switch to a Thread-based model ?

Engineering At Scale • 15 implied HN points • 24 Jun 23
🕹 Technology Database Architecture Modeling Software Development Performance
  1. PostgreSQL currently uses a process-based model for handling client connections and managing data.
  2. The process-based model offers advantages like fault isolation, security guarantees, and efficient resource management.
  3. Although there are advantages to the process-based model, the community is considering a switch to a thread-based model for PostgreSQL in the future.

The problem with the 10,000-hour rule...

UX Psychology • 19 implied HN points • 09 Feb 22
🔬 Science Expertise Skill acquisition Performance Meta-analysis
  1. The 10,000-hour rule, popularized by Malcolm Gladwell, suggesting practice alone leads to expertise has been debunked by recent studies showing talent and various factors play a significant role in skill acquisition.
  2. Criticism towards the 10,000-hour rule came from meta-analyses in sports, revealing that practice only accounted for a small percentage of the difference in performance levels, emphasizing the contribution of genetics and other factors.
  3. Understanding the limits of practice is crucial as it challenges the notion that anyone can excel if they put in enough effort, and highlights that success is influenced by multiple elements beyond just practice.

Once a Maintainer: Robert Mosolgo

Once a Maintainer • 5 implied HN points • 26 Jan 24
🕹 Technology Open Source Programming Software Development Languages Performance
  1. Robert Mosolgo transitioned from a background in linguistics to becoming a prolific open source maintainer and creator of the graphql-ruby gem.
  2. He got involved in open source by taking over the React-Rails gem, contributing, and eventually becoming the maintainer, showcasing the accessibility and impact of open source contributions.
  3. His journey into writing parsers for the gem led him to explore his linguistics background, bridging the gap between human language and programming language parsing.