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HipHop VM: now at 98.5% PHP framework parity, 16% faster
On November 4th, the HHVM team went on a 3-week performance and parity lockdown. The lockdown officially ended on November 22nd. Overall, this lockdown was a...
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Firefox, Heal Thyself
This week's release of Firefox includes the beginning of a pretty cool feature. The Firefox Health Report is a new system we've built to log basic health information about your ...
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Lifetimes of cryptographic hash functions
Quick summary of my recommendations on compare-by-hash: If you are using compare-by-hash to generate addresses for data that can be supplied by malicious users, you should have a plan to migrate to a new hash every few years. For example, BitTorrent falls into this category, but rsync doesn't. Keep in mind that new…
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Python and the Real-time Web
I had interview for the Flask book recently and some questions were related to realtime functionality - how it works, how to integrate realtime portion with conventional WSGI applications, how to structure application code and so on.
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Emacs users are like Terry Pratchett’s Igors
Within the constraints of the Emacs environment, there are no limits. Emacs is built upon this principle; the Lisp principle. Make some small kernel of features. A substrate. Take care to make this substrate programmable (in any language, Emacs chooses Lisp), and then build the system upon it. Let users worry about…
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Golang Object Oriented Design
Composition not inheritance, polymorphism through interfaces, and packages for namespacing.
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The Reliability of Go
As part of the Canonical Cloud Sprint taking place in San Francisco last week I attended Dave Cheney's talk at the GoSF meetup on the...
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Docker can now run within Docker
Docker is a founding member of the Blueprint Alliance, a 12-company reference architecture for securing AI agents, built around four governance questions.
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Recycling memory buffers in Go
This blog post is very old now. You probably don't want to use the techniques described here. GO'S sync.Pool is a better way to go.
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Deconstructing K&R C (2010)
Learn C The Hard Way (LCTHW) is a practical book teaching real world useful C using the same proven Learn The Hard Way method. LCTHW teaches real robust C coding and defensive programming tactics on real hardware rather than abstract machines and pedantic theory. The book emphasizes breaking your code on purpose, and…
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Tests Are Overhyped
Let me lead off by saying that I don’t think tests are bad. I really don’t. But here’s the thing: I don’t care what your test-code ratios are. You know what the best test-code ratio is? Whatever you need to make sure your crap works while still getting product out the door.
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Native equivalents of jQuery functions
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Introducing Chronos: A Replacement for Cron
Chronos: A Replacement for Cron By Florian Leibert, Harry Shoff, & Andy Kramolisch Chronos is our replacement for cron. It is a distributed and fault-tolerant scheduler which runs on top of Mesos …
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Building Clojure Services at Scale
At SoundCloud I’ve been experimenting over the last year with how we build the services that power a number of heavily loaded areas across our …