The hottest Performance Substack posts right now

And their main takeaways
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Top Finance Topics

What's WebAssembly?

Technically • 0 implied HN points • 06 Mar 24
🕹 Technology WebAssembly Programming Languages Performance Developer Tools
  1. WebAssembly allows developers to write code in faster languages like C++ and Rust that can run in the browser, solving performance limitations of JavaScript.
  2. Code running in the browser can only be written in JavaScript, leading to the development of WebAssembly to execute non-JavaScript code in the browser.
  3. WebAssembly can be used to offload specific parts of applications into modules that run faster, like using C++ or Rust code compiled into WebAssembly for more efficient operations.

Embedded Analytics - Under the Hood

astrodata • 0 implied HN points • 30 Jan 24
🕹 Technology Data Governance Performance Data Monetization
  1. Embedded analytics bring data to where customers are, sparking curiosity and increasing engagement by providing data in easily interpretable ways.
  2. Themes of modern embedded analytics include leveraging headless BI tools with semantic layers for defining business logic, and ensuring data governance for reliable data access.
  3. Building embedded analytics solutions not only drives product engagement by integrating data analysis seamlessly, but also opens avenues for data monetization and fosters internal data-driven cultures within businesses.

How to Design Software — Feature Flags

Joseph Gefroh • 0 implied HN points • 14 Jul 20
🕹 Technology Software Design Performance
  1. Separating deploys from releases can help reduce risk and streamline the development process by allowing code to be sent to production without being immediately visible to users.
  2. Feature flags are a useful tool for enabling or disabling features in software based on specific conditions, and they should not be used for account-specific authorization checks.
  3. When transitioning to a new feature flag system, focusing on separating reads and writes can provide a smoother migration process and reduce the risk of errors or discrepancies between different systems.

System Call Tracing

Certo Modo • 0 implied HN points • 09 Jun 23
🕹 Technology Performance Linux Tools Troubleshooting
  1. System calls are how programs interact with the operating system to request and manage resources like memory and files.
  2. System call tracing allows real-time observation of running processes to understand resource usage and behavior.
  3. Tracing tools like strace and perf can help diagnose issues in production systems but come with a performance impact, requiring caution in usage.

Learn to Fly.io with AnyCable

AnyCable Broadcasts • 0 implied HN points • 06 Sep 22
🕹 Technology Programming Deployment Performance Metrics Guides
  1. The benchmark results showed that AnyCable (RPC-less) handled 2700 concurrent connections, consuming only half of the available RAM (~120MB).
  2. Fly.io deployment guide for AnyCable and Real-time stress: AnyCable, k6, WebSockets, and Yabeda are helpful resources for developers.
  3. Issues like getting an app's Ruby version from the Gemfile have been fixed in recent 'flyctl' versions, and termination of Redis connections is intentional according to Fly docs.
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AnyCable v1.2: JWT identification and "hot streams"

AnyCable Broadcasts • 0 implied HN points • 29 Sep 21
🕹 Technology Web Development Backend Real-time Authentication Performance
  1. AnyCable v1.2 introduces JWT identification and 'hot streams' for powering up efficient Hotwire frontends by moving functions from Ruby to Go.
  2. JWT identification standardizes authentication for WebSockets, protects from cross-site WebSocket hijacking, and boosts performance by removing the need for RPC calls.
  3. Combining JWT identification with signed streams in AnyCable allows the creation of subscriptions without touching RPC, offering improved efficiency for Hotwire and CableReady functionality.

An Optimistic Venture Prose

Venture Prose • 0 implied HN points • 22 Mar 18
💼 Business Venture Capital Startups Investing Entrepreneurship Performance
  1. Investors and entrepreneurs often engage in gossip and cliches, while true progress is being made by dedicated entrepreneurs focused on providing solutions to their clients.
  2. In the world of venture capital, reputation and performance are crucial, with one often influencing the other. It takes time and consistency to see the full picture of success or failure.
  3. When investing in startups, optimism is key, as the future is not merely an extension of the past. It's important to prioritize talent, strategy, and the entrepreneur's decisions over fear or euphoria.

WOData: CrossFit Open 24.3

Austin's Analects • 0 implied HN points • 26 Mar 24
🎾 Sports Fitness Analysis Strategy Performance Workout
  1. Austin shares his strategy and analysis for CrossFit Open Workout 24.3, revealing his overly ambitious plan and the consequences of it on his performance.
  2. The workout consisted of thrusters, chest-to-bar pull-ups, bar muscle-ups, and strict time caps per round, showing Austin's struggle with pacing and transitions.
  3. Austin reflects on his execution, acknowledging his mistakes, overestimations, and areas for improvement in future attempts at the workout.

WOData: CrossFit Open 24.1

Austin's Analects • 0 implied HN points • 04 Mar 24
🎾 Sports Fitness Analysis Strategy Performance Workout
  1. This post gives insight into optimizing performance for the 2024 CrossFit Open workout 24.1, emphasizing the importance of strategic planning and understanding workout tests.
  2. The author shared their workout strategy, performance analysis, and a tool to help others analyze their own performance in the CrossFit workout.
  3. Determining whether to retest a workout depends on factors like consistency in performance across rounds and feeling of leftover energy, offering specific ways to improve scores.

Erik Simkins: OVERKILL

Do Not Research • 0 implied HN points • 20 Nov 23
🎨 Art & Illustration Performance Music Video Collaboration Event
  1. A 63-minute audio-video collaboration titled OVERKILL took place in Seattle in 2023 at the old Rainier Brewery, combining music by DJ DataPagan and video editing by 0erik1.
  2. The event featured the work of Carlin Kramer and Emma Wheeler, bridging early and late dance performances in a unique artistic space.
  3. The collaboration showcased a blend of creativity and performance in a visually striking presentation.

Angel Emoji: Like It or Not, I'm Dropping a Huge Bomb of Joy on Your Heart

Do Not Research • 0 implied HN points • 16 Oct 22
🎨 Art & Illustration Performance Music Artists Literature Creativity
  1. Working on a Disney cruise ship can create a magical, stable, and joyful environment as a performer.
  2. Artists like Jeffrey Lewis and John Cage showcase endurance and commitment in their artistic endeavors.
  3. Repetition in performance can lead to a deep familiarity and acceptance, transforming initial offense into enjoyment.

Filip Kostic: 24 Hour Bed PC Live Stream

Do Not Research • 0 implied HN points • 15 Aug 21
🎨 Art & Illustration Performance Artwork Gaming Sculpture
  1. Filip Kostic conducted a 24-hour live stream from a bed PC, blending art, gaming, and work in a unique performance.
  2. He highlighted the concept of collapsing the space between his bed and his workstation to optimize his life.
  3. The 'Bed PC' experiment aimed to blur boundaries and create a borderless life of work, art, and play within the confines of a bedroom.

016: Should You Do CrossFit on a Ketogenic Diet?

Harnessing the Power of Nutrients • 0 implied HN points • 25 Jul 16
🏥 Health & Wellness Nutrition Exercise Performance Weight Loss Hormones
  1. A low-carbohydrate ketogenic diet can lead to weight loss and body fat reduction without sacrificing performance in certain types of workouts.
  2. The impact of a ketogenic diet on maximal performance in weight-lifting or sports involving short bursts of energy is still unclear and requires further study.
  3. Hormonal adaptations to a ketogenic diet may potentially have negative impacts on thyroid hormone, cortisol, LDL-cholesterol, and sex hormones, so it's important to consider these aspects.

Baseball and Carbon Accounting, Part 1

Solar Powered Data • 0 implied HN points • 21 Aug 23
🎾 Sports Analytics Performance Accounting Statistics
  1. Measuring carbon emissions is challenging and involves various frameworks like the GreenHouse Gas Protocol and Science-Based Targets.
  2. Just like baseball teams aim to score more runs by balancing offense and defense, individuals in carbon accounting also strive to reduce emissions while enhancing carbon removal.
  3. In both baseball and carbon accounting, accurately attributing individual contributions is complex, and there is a need for improved methods to credit and analyze performance.

Measuring the progress and success of a strategy

Ruben Ugarte's Growth Needle™ • 0 implied HN points • 18 Jun 24
💼 Business Strategy Metrics Management Performance Goals
  1. It's important to measure the right things in a strategy, not just rely on numbers. Sometimes, we need to focus on quality rather than quantity to truly understand our success.
  2. Knowing when you’ve achieved a goal is key. You should have clear indicators so you know when to shift focus instead of endlessly trying to improve.
  3. Using the wrong metrics can lead to serious problems. Be careful to choose metrics that actually support your goals, instead of chasing numbers that don't really matter.

The Lord of Small Things

Sector 6 | The Newsletter of AIM • 0 implied HN points • 28 Dec 22
🕹 Technology Semiconductors AI Chip Design Consumer Electronics Performance
  1. Apple is moving to smaller 3nm chips for better efficiency in its devices. This will help iPhones and Macs perform better while saving power.
  2. The new 3nm chips promise to boost performance compared to the previous 4nm versions. This means faster and more capable devices for users.
  3. However, there's a challenge with chip production as TSMC, the manufacturer, is struggling to keep up with the high demand for these new chips.

How to Improve Android App Performance

Better Engineers • 0 implied HN points • 22 Apr 24
🕹 Technology App Development Performance User Experience Android Software Engineering
  1. Identify and monitor app performance issues, like slow rendering and frozen frames, to enhance user experience. It's important to keep the app responsive to avoid losing users.
  2. Use tools like Firebase Performance Monitoring to track performance data and identify problems, such as long UI thread operations that can cause jank.
  3. Implement strategies to improve performance, like using View Stubs for loading UI components on demand and avoiding long tasks on the main thread, which can make the app freeze.

Performance and Effort

Splattern • 0 implied HN points • 04 Dec 23
🎭️ Culture Performance Art Dance Consciousness Creativity
  1. Performance doesn't have to feel like hard work. Sometimes, it can be more about living in the moment and enjoying the experience.
  2. In dance and life, it's possible to let go of unnecessary tension and just flow with the energy around you.
  3. Being fully present might not mean putting in more effort; it could actually be about inhibiting certain thoughts or actions to find a more relaxed state.

Some Theories for/from Dancing

Splattern • 0 implied HN points • 22 Aug 21
🎭️ Culture Dance Performance Empathy Self Social Interaction
  1. Dancing is often a selfish act that brings focus to oneself, allowing the dancer to feel lost in their own body. It's okay to explore this self-centeredness and let go of the fear of being perceived as selfish.
  2. Empathy can be practiced in dancing by mirroring others' movements, including their struggles. By doing this, dancers become more aware of their own bodies and can connect with others on a deeper level.
  3. Social dancing is about connection and validation, where dancers support each other rather than compete. It's important to balance taking care of one's own energy while engaging with others through eye contact and smiles.

How to remove Nx cloud from your app

Shrek's Substack • 0 implied HN points • 24 Aug 23
🕹 Technology Software Development Cloud Performance Tools
  1. Nx Cloud can speed up tasks for big teams, but small projects might not need it. It's okay to skip it if you're working solo or on smaller tasks.
  2. If you encounter errors using Nx Cloud, switching to local runners is a good solution. Local runners can handle tasks without relying on the cloud.
  3. To remove Nx Cloud from your app, just change a setting in the nx.json file and switch to a local runner. You can also uninstall Nx Cloud easily with a command.

Financial Management: Introduction

Logos • 0 implied HN points • 09 Jul 20
💼 Business Management Finance Strategy Analysis Performance
  1. Always focus on results in your work. It's important to show how your actions led to success, whether that's through numbers or other methods.
  2. Identify what really drives your business success. Track those important factors so you can influence them effectively.
  3. It's not enough just to track results; you need to have a plan on how to improve them. Without taking action, just watching numbers doesn't help.

On Databases and Memory

Thoughts from the trenches in FAANG + Indie • 0 implied HN points • 06 Jan 24
🕹 Technology Databases Consulting Performance Migration Engineering
  1. Migrating from one database system to another, like from PostgreSQL to MongoDB, might not solve performance issues and could be costly and slow. It's often better to analyze if the migration will really help before proceeding.
  2. Understanding how databases work is crucial. Different databases use memory and disk in similar ways, so just switching systems might not lead to significant improvements.
  3. There are effective ways to boost database performance without major migrations. Improving cache, using faster disks, and optimizing indexing strategies can help both PostgreSQL and MongoDB perform better.

Losers and Winners: The inevitable consequence of risk taking...

Musings on Markets • 0 implied HN points • 06 Jul 09
💰 Finance Investing Market risk Funds Performance Returns
  1. Risk-taking in investments can lead to big swings in performance. Sometimes the worst funds can become the best and vice versa, depending on market conditions.
  2. It's not surprising when funds that performed poorly one year suddenly perform well the next. This happens because their strategies are closely tied to market risks.
  3. The key to evaluating a fund isn't just short-term performance, but its ability to make money over the long run without being overly risky.

What Can We Learn From Brazil's Infamous 7-1 World Cup Loss?

Voohy Leadership Insights • 0 implied HN points • 11 Jul 24
🎾 Sports Team Dynamics Leadership Psychology Performance Crisis Management
  1. Key players missing can really affect a team's performance. When Brazil lost Neymar and Thiago Silva, it became clear that leadership was lacking on the field.
  2. Understanding everyone's roles in a team is super important. Without role clarity, the players didn't know how to support each other effectively during the game.
  3. In high-pressure situations, the mental game matters a lot. Teams need to build confidence and keep morale high, especially after setbacks, to bounce back stronger.

Star Players and Team Effectiveness

Voohy Leadership Insights • 0 implied HN points • 27 Jun 24
💼 Business Management Team Dynamics Leadership Performance Collaboration
  1. Having some star players on a team is good for performance, but too many can actually hurt it. It's important to find a balance.
  2. When there are too many strong personalities, team members might compete with each other instead of working together. This can weaken collaboration.
  3. Building a successful team is about more than just individual talent. It's also about creating a supportive environment where everyone can work well together.

Motivate your team tapping into intrinsic drives through Autonomy, Mastery and Purpose

The Healthy Engineering Leader • 0 implied HN points • 07 Jun 23
💼 Business Leadership Motivation Teamwork Performance Management
  1. Giving people more control over their work, or autonomy, can make them more motivated and engaged. When team members feel they can make choices, they often feel happier.
  2. Helping individuals to become skilled or achieve mastery in their tasks is important. When people see themselves improving, it boosts their confidence and motivation.
  3. Having a clear sense of purpose can inspire teams. When team members understand how their work contributes to a greater goal, they are more likely to feel driven and focused.

Unlock Your Team’s Full Potential with OKRs!

The Healthy Engineering Leader • 0 implied HN points • 21 Feb 23
💼 Business Management Leadership Strategy Performance Goals
  1. OKRs, or Objectives and Key Results, help teams set clear goals and measure progress. They keep everyone focused on what really matters.
  2. Using OKRs can align your team with the company's strategy, ensuring everyone is working toward the same objectives. This alignment is crucial for effective execution.
  3. Regularly reviewing your OKRs, like monthly check-ins, helps track how well the team is doing and allows for adjustments if necessary. It's all about staying flexible and learning from the process.

Strategizing for Success in Software Engineering

The Healthy Engineering Leader • 0 implied HN points • 01 Feb 23
🕹 Technology Software Engineering Strategy User Experience Performance
  1. Strategy and goals are different. A goal is what you want to achieve, while strategy is how you plan to get there.
  2. A good strategy needs to be cohesive. All parts of the strategy should work together to reach the goal.
  3. Strategies should be flexible. As circumstances change, it's important to adjust your strategy when needed.

Writing Useful Performance Reviews: Evaluating the data and writing the review

It Depends / Nimble Autonomy • 0 implied HN points • 19 May 24
💼 Business Management Performance Leadership Human Resources Data Analysis
  1. Collect all relevant data before writing a performance review. This includes past reviews, feedback, and notes so you have a complete view of the person's performance.
  2. Be clear and honest when writing the review. Avoid vague language or trying to balance out negatives with positives; it’s important for the person to understand their true performance.
  3. After writing the reviews, check for patterns or biases. Make sure each review makes sense and supports your conclusions about each person's performance.

Why progressive enhancement

Andrew's Substack • 0 implied HN points • 09 Oct 24
🕹 Technology Web Development Accessibility Performance Software Design User Experience
  1. Progressive enhancement means creating websites that work well without JavaScript first, and then adding more features for those who do have it. This approach helps make sites more accessible for everyone.
  2. Using native HTML elements in progressive enhancement leads to simpler code, which means less client-side state management and easier overall development.
  3. It often results in better performance since the browser handles more tasks. Less JavaScript code can lead to faster and more focused functionality in applications.

Why speed should be your first priority

Talking to Computers: The Email • 0 implied HN points • 15 May 24
🕹 Technology Internet Business E-commerce User Experience Performance
  1. Prioritize speeding up processes to save users time. When making choices, consider what helps users get what they need faster.
  2. Saving time is beneficial for businesses, like e-commerce and streaming services, as it leads to more sales and viewings.
  3. Look at projects through the lens of speed and efficiency. Evaluate how your features help users save time and adjust priorities accordingly.

Anthropic just made the agentic AI race interesting

Alex's Personal Blog • 0 implied HN points • 23 Oct 24
🕹 Technology AI Software Innovation Enterprise Performance
  1. Anthropic introduced a new AI feature that allows its model, Claude, to interact with computers like a human does. This means it can perform tasks by moving a cursor, clicking, and typing on its own.
  2. This technology could change how companies use AI, making it possible to automate many jobs, which might reduce the need for human workers in some areas.
  3. The introduction of this API means that more people can experiment with AI at home and in small businesses, which could lead to creative and practical uses for technology in daily life.

Volkswagen Taigun / Skoda Kushaq: Performance over Comfort

Kartick’s Blog • 0 implied HN points • 12 Dec 24
🕹 Technology Automotive Product Design User Experience Performance Digital features
  1. The Volkswagen Taigun and Skoda Kushaq are great for those who prioritize speed and performance, but they sacrifice comfort and digital features. They're not ideal for everyone.
  2. While the Taigun/Kushaq can reach high speeds, many buyers will be better off with cars like the Creta or Seltos, which offer more comfort and balance.
  3. Overall, if you want a car with fun driving experiences and can overlook some comfort issues, the Taigun/Kushaq might be for you, especially if you choose the 1.5-liter engine version.

Bodies Bodies [9]

The Author Is Dumb • 0 implied HN points • 12 Jan 25
🎭️ Culture Art Literature Fashion Music Media Performance
  1. A young woman in Barcelona experiences a strange moment when everyone stops to look at the sky. It creates a feeling of suspense and curiosity among the crowd.
  2. The scene shows a shift from a bustling city life to an eerie silence as people start to feel uneasy. This change highlights human reactions in unexpected situations.
  3. A mysterious figure appears floating in the sky, prompting screams and confusion. This adds an element of mystery and raises questions about what is happening.

🏆 Win the Inside Game - Steve Magness

The Wisdom Project • 0 implied HN points • 16 Feb 25
🏥 Health & Wellness Mental health Performance Coaching Personal Development Motivation
  1. Success relies more on your mindset than just skills. Many people can perform well but struggle because of their thoughts and doubts.
  2. Focus on what you can control and keep things simple. Stress comes from overthinking and distractions.
  3. Being motivated by your own passion is crucial. When you enjoy what you do, you're more likely to succeed in the long run.

untitled

Pizza Party • 0 implied HN points • 16 Feb 25
🎭️ Culture Art Music Literature Performance Community
  1. Divisions in society are growing, making it hard for people to unite over their rights.
  2. There’s strong advertising everywhere, making it clear that change needs to happen.
  3. People have a choice to either speak up for change or do nothing and let things stay the same.

Honda City: A Fallen Hero

Kartick’s Blog • 0 implied HN points • 10 Jun 25
🕹 Technology Automotive Digital features Performance User Experience Design
  1. The Honda City has many disappointing features compared to its competitors, especially the Verna. Its performance, comfort, and technology don't meet expectations.
  2. The car's design is flawed in several areas, like awkward storage spaces and poor seat adjustments. Some important details, like warnings and features, seem neglected.
  3. Overall, the Honda City feels outdated and lacks many modern comforts and performance enhancements, making it less appealing compared to other options in the market.

Maruti Ciaz: Good Riddance

Kartick’s Blog • 0 implied HN points • 09 Jun 25
🕹 Technology Automotive Reviews Performance Design Innovation
  1. The Maruti Ciaz lacks good performance, with poor acceleration compared to older models like the 2013 Ritz. Many features, like noise and engine refinement, are disappointing.
  2. Comfort features in the Ciaz are hit or miss, with good headroom but some hard parts and a cramped feeling in certain positions. The driving experience is easier in traffic but has issues with gear visibility.
  3. Digital technology in the car feels outdated, with small screens and poor music quality. There are also limited charging options, making it feel less modern than competitors.