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Algorithmic surrealism: A slow-motion guide to high-frequency trading
Please note: Part 1 of this essay appeared in the Feb 2015 edition of Contributoria . It is published and modified here under a...
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Migrating bajillions of database records at Stripe
There are roughly ten thousand bajillion (to the nearest bajillion) merchants registered with Stripe. We recently finished a Very Big Migration of Large Amounts Of Data between several database tables for every single one of them, without losing any of it, without any downtime, mis-reads or mis-writes, whilst running…
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Deriving the Reddit Formula
A few things about Reddit’s hot formula have always bothered me. The formula has obviously been a success when it comes to setting the Internet on fire, but I have to wonder:
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Mozilla Launches Open-Source Support Program
Today Mozilla is launching an award program specifically focused on supporting open source and free software. Our initial allocation for this program is $1,000,000. We are inviting people already deeply connected to Mozilla to participate in our first set of awards.
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“Nothing you can do impresses me”
Because of the urgent need for new blood / ideas in the tech world, our lack of ability to reward new developers is a particularly profound example of shooting oneself in the foot.
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What the Flux?
Flux by Facebook is an architectural pattern for using their React library. This post helps explain flux in easy to understand ways.
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Coding for SSDs
Translations: This article was translated to Simplified Chinese by Xiong Duo and to Korean by Matt Lee (이 성욱). Introduction I want to make solid-state drives (SSDs) the optimal storage solution for my key-value store project. For that reason, I had to make sure I fully understood how SSDs work, so that I can optimize
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A game running in your browser's address bar
Interactive animations and even a game in your URL bar.
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Firefox nightlies for Linux are now using Gtk+3
As of last nightly (2015-07-23), Firefox for Linux is using Gtk+3 instead of Gtk+2.
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Modern Extreme Programming
There was a recent discussion on the Extreme Programming mailing list kicked off by Ron Jeffries saying he wants his XP back. The implication being that Extreme Programming is no longer practised, and that most “Agile” organisations are actually practising Flaccid Scrum – some agile process but little of the technical…
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Bug finding is slow in spite of many eyeballs
"given enough eyeballs, all bugs are shallow" The saying (also known as Linus' law) doesn't say that the bugs are found fast and neither does it say who finds them. My version of the law would be much more cynical, something like: "eventually, bugs are found", emphasizing the 'eventually' part. (Jim Zemlin apparently…
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Impossible Escape?
Can you use math to escape from, what seems like, an impossible prison escape problem based on coins and a chessboard?
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UDP and me
David P. Reed has transferred the domain reed.com to Reed Online Ltd. Links relating to the work of David P.Reed should be updated to point to URLs at www.deepplum.com. If you have arrived at this web page by following a link in another website, blog, etc., you can find the desired web page by substituting deepplum…
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Google’s S2, geometry on the sphere, cells and Hilbert curve
Update - 05 Dec 2017: Google just announced that it will be commited to the development of a new released version of the S2 library, amazing news, repository can be found here. Google's S2 library is a real treasure, not only due to its capabilities for spatial indexing but also because it is a library that
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Modern SQL: With – Organize Complex Queries
The WITH clause adds named subqueries to SQL queries. WITH is also known as Common Table Expression (CTE).