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ZFS Gotchas
Things Nobody Told You About ZFS Yes, it's back. You may also notice it is now hosted on my Blogger page - just don't have time to deal w...
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The latest blog posts to take off on Hacker News. 4,390 posts.
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Running ASP.NET vNext on OS X and Linux
So what is ASP.NET vNext ? Microsoft have recently released a preview of the next iteration of their ASP.NET platform. I’m not going to go into …
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OS X 10.9.3 Is Toxic
OS X 10.9.3 Recurring Panics
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Some small suggestions for the Intel instruction set
Programmers trying to make crypto run fast often say things like "Why can't the CPU designer just add a 128-bit multiplication instruction?" Sometimes these questions turn into academic papers analyzing the cycle counts that would be obtained from various instruction-set extensions. What's missing from most of these…
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Computers are fast
Computers are *fast*!
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What's wrong with systemd
So many weird little demands on time, mostly spinning out of the Signal groups set up to counter ICE and now being used for general community stuff.
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Let's Write Some x86-64
…"‘Our speech interposes itself between apprehension and truth like a dusty pane or warped mirror. The tongue of Eden was like a flawless glass; a light of total understanding streamed through it. Thus Babel was a second Fall.’ And Isaac the Blind, an early Kabbalist, said that, to quote Gershom Scholem’s translation…
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Co-routines as an alternative to state machines (2009)
When you have to traverse some sort of a nested data structure (say, a binary tree), one approach is to create a stack that remembers where in the tree you are. Another, much more elegant approach, is to write the function recursively. A recursive function employs the machine stack used to implicitly implement…
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Glacier redux
by Robin Harris | Wednesday, April 30, 2014 | Architecture , Cloud computing & storage , Object storage | 14 comments
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You Don't Want XTS
XTS is the de-facto standard disk encryption mode, which makes it look like a good general-purpose one. It isn't. What disk encryption actually promises, and why XTS's guarantees don't travel.
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Amazon’s Glacier secret: BDXL?
by Robin Harris | Friday, April 25, 2014 | Backup , Cloud computing & storage | 24 comments
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The Linux Security Circus: On GUI isolation
There certainly is one thing that most Linux users don't realize about their Linux systems... this is the lack of GUI-level isolation, and ...
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Go Performance Tales
This entry is cross-posted on the datadog blog . If you want to learn more about Datadog or how we deal with the mountain of data we receive, check it out!
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Creating a Bare Bones Bootloader
Upon hearing the word 'bootloader', many people cower in fear. It seems like a scary low-level thing that's very easy to mess up. To dispel some of this fear, I'm going to walk through making a super simple bootloader/OS, assuming only a basic level of familiarity with assembly language and how computers work.
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A performance comparison between Java and C on the Nexus 5
Android phones have been growing ever more powerful with time, with the Nexus 5 sporting a quad-core 2.3 GHz Krait 400; this is a very powerful CPU for a mobile …
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Speed memory access by arranging data to take advantage of CPU caching
We’ve been lied to. They keep showing us charts where CPU speed goes up and up every year as if Moore’s Law isn’t just a historical observation but some kind of divine right. Without lifting a finger, we software folks watch our programs magically accelerate just by virtue of new hardware.
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Low-level is easy
My previous entry has the amazingly interesting title "Blogging is hard". Gee, what a wuss, says the occasional passer-by. Gotta fix my image, fast. Think, think, think! OK, here's what I'm going to tell you: low-level programming is easy. Compared to higher-level programming, that is. I'm serious.
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