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Ubuntu now available from the Windows store
Today, we’re excited to announce that Canonical’s Ubuntu Linux Distro is now available in the Windows Store and can be downloaded and installed on any
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The latest blog posts to take off on Hacker News. 6,949 posts.
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OpenBSD and the modern laptop
Did you think that OpenBSD is suitable only for firewalls and high-security servers? Think again. Here are my steps to transform a modern m...
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Unikernels are secure
Per Buer is the CEO of IncludeOS . IncludeOS is a clean-slate unikernel written in C++ with performance and security in mind. Per Buer is the founder and previous CEO/CTO of Varnish Software.
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24-core CPU and I can’t move my mouse
This story begins, as they so often do, when I noticed that my machine was behaving poorly. My Windows 10 work machine has 24 cores (48 hyper-threads) and they were 50% idle. It has 64 GB of RAM an…
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Linux tracing systems and how they fit together
Linux tracing systems & how they fit together
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Pillow-SIMD – Fast, production-ready image resize for x86
Learn how Uploadcare engineers found out how to resize images on Intel processors faster than Intel itself
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Pruning spaces from strings quickly on ARM processors
Suppose that I give you a relatively long string and you want to remove all spaces from it. In ASCII, we can define spaces as the space character (' '), and the line ending characters ('\r' and '\n'). I am mostly interested in algorithmic and performance issues, so we can simplify the problem by removing all ……
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I found a bug in Intel Skylake processors
Instructors of “Introduction to programming” courses know that students are willing to blame the failures of their programs on anything. Sorting routine discards half of the data? “That might be a Windows virus!” Binary search always fails? “The Java compiler is acting funny today!” More experienced programmers know…
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Nuts and Bolts of Multithreaded Programming (2011)
Access technologies that use data for modern code, machine learning, big data, analytics, networking, storage, servers, cloud, and more.
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Writing a NetBSD kernel module
Kernel modules are object files used to extend an operating system’s kernel functionality at run time .
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Exactly-once Semantics: How Kafka Does it
Exactly-once is a hard problem to solve, but we've done it. Available now in Apache Kafka 0.11, exactly-once semantics.
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Delivering Billions of Messages Exactly Once
The single requirement of all data pipelines is that they cannot lose data. Data can usually be delayed or re-ordered–but never dropped.
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The Limits of the CAP Theorem
This post explains how CAP-Consistent systems can be highly available, how the CAP theorem applies to CockroachDB, and why consistency is the better choice.
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IPv4 route lookup on Linux
Linux uses an LPC-trie for looking up routes. It provides good performance with low memory use even with millions of routes.
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Streaming Combinators and Extracting Flat Parallelism
A high-performance and high-level purely functional data-parallel array programming language that can execute on the GPU and CPU.
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How LZ4 works (2016)
LZ4 is an exciting algorithm, but unfortunately there is no good explanation on how it works. This blog post tries to explain it in terms that everybody can understand.
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Cooling the tube – Engineering heat out of the Underground
On a summer's day a trip in a hot tube train is a dreadful experience, but how did we end up with such hot tube trains, and what's being done about it?
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Multiple regex performance shootout: RE2 vs. Intel's Hyperscan
Access technologies from partnerships with the community and leaders. Everything open source at Intel. We have a lot to share and a lot to learn.
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An Ancient Kernel Hole Is Not Closed
The "stack clash" series of vulnerabilities were a prime opportunity to demonstrate the strength of grsecurity's approach to security. Unlike upstream Linux and other OSes, the issues uncovered were unexploitable under grsecurity for many years.
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Casync – A tool for distributing file system images
Posts and writings by Lennart Poettering
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Curl doesn’t spew binary anymore
One of the least favorite habits of curl during all these years, I've been told, is when users forget to instruct the command line tool where to store the downloaded file and as a direct consequence, curl instead sends a lot of binary "gunk" to the terminal. The end result of that is at best … Continue reading curl…
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How the .NET Runtime Loads a Type
It is something we take for granted every time we run a .NET program, but it turns out that loading a Type or class is a fairly complex process.