Hexbyte  Hacker News  Computers Using /proc to get a process’ current stack trace

Hexbyte Hacker News Computers Using /proc to get a process’ current stack trace

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Hey, The file covered in this article, /proc//stack, is the one that motivated me to learn more about /proc and get The Month of Proc. It’s such a useful thing when you’re unaware of what is the state of a given process. Meanwhile, I’ve noticed that it’s not very well known by people getting started…

Hexbyte  Hacker News  Computers Using HAProxy as an API Gateway, Part 1 [Introduction]

Hexbyte Hacker News Computers Using HAProxy as an API Gateway, Part 1 [Introduction]

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An API gateway is a layer of software between the frontend UI and backend services that routes requests intelligently. Read on to learn how HAProxy Enterprise Edition excels as an API gateway. “Danger! Avalanche Area” is a sign you’ll see when you drive through some parts of Colorado. Looking at the surrounding mountains in winter,…

Hexbyte  Tech News  Wired Before Using Birth Control Apps, Consider Your Privacy

Hexbyte Tech News Wired Before Using Birth Control Apps, Consider Your Privacy

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Score one for the quantified self-surveillance movement. Last week, the US Food and Drug Agency approved the first-ever, over-the-counter digital contraceptive—a polished and almost preternaturally upbeat mobile app called Natural Cycles. Basal body temperature readings and monthly menstruation data feed into an algorithm that tells users whether or not they should be having unprotected sex.…

Using GraalVM to run Native Java in AWS Lambda with Golang

Using GraalVM to run Native Java in AWS Lambda with Golang

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This title might seem like generated by a Markov Chain on Hacker News submissions, but it is real. If you are deploying serverless applications in AWS Lambda and using Java, you are well aware of cold start problems. Cold start happens because of the way the Java Virtual Machine works, it kicks in JIT (Just-in-time), and…

Using Countdown Clock Data to Understand the New York City Subway

Using Countdown Clock Data to Understand the New York City Subway

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If you’ve been on a New York City subway platform since January 2018, you should have noticed a countdown clock that displayed an estimate of when the next train would arrive. Although there’s no official record of when trains actually stopped at each station, the countdown clock data can be used to approximate. Over the…