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New
The latest blog posts to take off on Hacker News. 6,950 posts.
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Recovering deleted files using only grep
Alex Clemmer is a computer programmer. Other programmers love Alex, excitedly describing him as "employed here" and "the boss's son".
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Call me maybe: Elasticsearch
This post covers Elasticsearch 1.1.0. In the months since its publication, Elasticsearch has added a comprehensive overview of correctness issues and their progress towards fixing some of these bugs.
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Debian is switching back to GLIBC
Five years ago Debian and most derivatives switched from the standard GNU C Library (GLIBC) to the Embedded GLIBC (EGLIBC). Debian is now about to...
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Cap'n Proto, FlatBuffers, and SBE
Moved to: https://capnproto.org/news/2014-06-17-capnproto-flatbuffers-sbe.html (GitHub Pages doesn't support 301 redirects :(.)
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FlatBuffers: a memory efficient serialization library
The latest news from Google on open source releases, major projects, events, and outreach programs for early career developers.
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An even slimmer pdf.js
TL;DR: Firefox’s built-in PDF viewer is on track to benefit from additional large reductions in memory consumption when Firefox 33 is released in mid-October.
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Call me maybe: etcd and Consul
In the previous post, we discovered the potential for data loss in RabbitMQ clusters . In this oft-requested installation of the Jepsen series, we’ll look at etcd : a new contender in the CP coordination service arena. We’ll also discuss Consul ’s findings with Jepsen.
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Algorithmic complexity attacks and libc qsort()
An algorithmic complexity attack is a denial of service attack that triggers worst case behaviour in code that is otherwise expected to perform well. The canonical example would be the widely published attacks against hash table implementations , where carefully crafted inputs made snappy \(O(1)\) operations…
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HFS+ Bit Rot
HFS+ is a terribly old filesystem with serious flaws. I sincerely hope that Apple comes with an update of the filesystem for WWDC 2015. After all they have been working on Swift for the past 4 years and we have just learned about it last week. HFS+ is seriously old HFS+ was released in 1998, in the era of Mac OS…
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Red Hat Unveils Red Hat Enterprise Linux 7
Red Hat, Inc. (NYSE:RHT), the world's leading provider of open source solutions, today announced the general availability of Red Hat Enterprise Linux 7, the latest major release of the company's flagship platform. Red Hat Enterprise Linux 7 not only lays the foundation for the open hybrid cloud and serves enterprise…
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Call me maybe: RabbitMQ
RabbitMQ is a distributed message queue, and is probably the most popular open-source implementation of the AMQP messaging protocol. It supports a wealth of durability, routing, and fanout strategies, and combines excellent documentation with well-designed protocol extensions. I’d like to set all these wonderful…
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Things that make Go fast
Anthony Starks has remixed my original Google Present based slides using his fantastic Deck presentation tool. You can check out his remix over on his blog, mindchunk.blogspot.com.au/2014/06/remixing-with-deck .
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Secrets of dispatch_once; x86 performance trickery
Reader Paul Kim pointed out an entry on Michael Tsai's blog about making dispatch_once fast . While the comment in the dispatch_once source code is fascinating and informative, it doesn't quite delve into the detail that some would like to see. Since this is one of my favorite hacks, for today's article I'm going to…
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Performance comparison of Functional C++ 11, Java 8, JavaScript and Wolfram
In a recent post , Andreas declared his love for the programming language FORTRAN. He concluded his post with the question “Can a functional...
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How Protothreads Really Work
What goes on behind the magical macros in the C protothreads library? Why are they macros? How do the macros work? Read on for the explanation.
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Running OS X Mavericks under QEMU with KVM
This domain name is available, own it today. Affordable payment options. Fast and professional service.
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We Need Hardware Traps for Integer Overflow
How many problem domains require wrapping signed integers or non-wrapping unsigned integers? Can the current undefined case be replaced with a trap and everything else be left intact?
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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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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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BPF: The Forgotten Bytecode
Every once in a while I run into an obscure computer technology that is a hidden gem, which over the years has become mostly forgotten. This is exactly how I feel about the tcpdump tool and its kernel counterpart the packet filter interface.
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Principles of high-performance programs (2012)
This article is an attempt to sum up a small number of generic rules that appear to be useful rules of thumb when creating high performing programs. It is structured by first establishing some fundamental causes of performance hits followed by their extensions.