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Subtly Bad Things Linux May Be Doing To PostgreSQL
In addition to talking about PostgreSQL at LSF/MM and Collab , I also learned a few things about the Linux kernel that I had not known befor...
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The latest blog posts to take off on Hacker News. 4,390 posts.
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Game servers: UDP vs TCP
When writing networked games, the question of UDP vs TCP will eventually come up. Typically you will hear people say things like: “Unless you’re doing action games, you can use TCP̶…
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You Got Your Web Browser in my Compiler
I recently discovered that Microsoft’s VC++ compiler loads mshtml.dll – also known as Internet Explorer. The compiler does this whenever the /analyze option (requesting static code analysis) is use…
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Basic Concepts of High Availability Linux
When considering to build a high availability cluster based on Linux, it’s easy to find all kinds of how-to’s explaining the basic tooling and configuration. Most of them forget to explain some of the basic concepts of high availability. In this post I’ll try to explain them. To build a high availability cluster that…
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Developing Service Oriented Architectures
Having spent the last four years rolling out a handful of service oriented architectures, some lessons are finally coming together, and this is an attempt at documenting them.
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Microservices
Defining the microservices architectural style by describing their nine common characteristics
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Linux's fsync() woes are getting some attention
In two weeks, I'm headed to LSF/MM and the Linux Collaboration Summit , by invitation of some Linux kernel hackers, to discuss how the Linu...
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Myths about /dev/urandom
Randomness, entropy, and the Linux kernel.
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Bitcoin mining the hard way: the algorithms, protocols, and bytes
This article explains Bitcoin mining in details, right down to the hex data and network traffic. If you've ever wondered what really happe...
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As much Stack Overflow as possible in 4096 bytes
Fitting as much Stack Overflow as possible into 4096 bytes
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The C10M problem
It's time for servers to handle 10 million simultaneous connections, don't you think? After all, computers now have 1000 times the memory as...
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The C10K problem
It's time for web servers to handle ten thousand clients simultaneously, don't you think? After all, the web is a big place now.
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A Whole New World
This talk announces the most ambitious software project I've ever undertaken, then considers why its existence is so surprising (and in some cases frustrating) to people.
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Broken by design: systemd
Recently the topic of systemd has come up quite a bit in various communities in which I'm involved, including the musl IRC channel and on the Busybox mailing list .
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An immutable operating system
A post by August Lilleaas, published February 02, 2014.
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Bitcoins the hard way: Using the raw Bitcoin protocol
All the recent media attention on Bitcoin inspired me to learn how Bitcoin really works, right down to the bytes flowing through the netwo...
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Parallelism in one line
A Better Model for Day to Day Threading Tasks
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Intel's "cripple AMD" function (2009)
Software optimization resources | E-mail subscription to this blog | www.agner.org
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Apache Spark: The Next Big Data Thing?
Apache Spark is generating quite some buzz right now. Databricks, the company founded to support Spark raised $14M from Andreessen Horowitz, Cloudera has decided to fully support Spark, and others chime in that it's the next big thing. So I thought it's high time I took a look to get an understanding what the whole…
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Finite State Entropy - A new breed of entropy coder
In compression theory, the entropy encoding stage is typically the last stage of a compression algorithm, the one where the gains from t...