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Storage engine design
In time-series databases the querying pattern differs from the write pattern. We usually write data in time order by updating many series every second. But querying is a different story. We usually want to read only a handful of series leaving most of the data behind. Here lies the biggest problem, which is we don’t…
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Over the Air: Exploiting Broadcom’s Wi-Fi Stack (Part 2)
Posted by Gal Beniamini, Project ZeroIn this blog post we'll continue our journey into gaining re...
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27000 errors in the Tizen operating system
This article will demonstrate that during the development of large projects static analysis is not just a useful, but a completely necessary part of the development process. This article is the first...
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Ubuntu 17.04 Released
Ubuntu 17.04 released today, supporting Kubernetes, Docker, LXD and Snaps. This is the 26th release of Ubuntu, the world’s most widely deployed Linux OS and the leading platform for cloud and IoT operations. “The breadth and pace of open source innovation has made it the center of gravity in technology today, and the…
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Inside Cloud Spanner and the CAP Theorem
Building systems that manage globally distributed data, provide data consistency and are also highly available is really hard. The beauty of the cloud is that someone else can build that for you.
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Coreboot and Skylake, Part 2: A Beautiful Game
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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Hybridizer: High-Performance C# on GPUs
Hybridizer is a compiler from Altimesh that lets you program GPUs and other accelerators from C# code or .NET Assembly. Using decorated symbols to express parallelism, Hybridizer generates source code…
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Rumors of Cmd’s death have been greatly exaggerated
This post is in response to a story published on December 6th 2016 by ComputerWorld titled "Say goodbye to the MS-DOS command prompt" and its follow-up
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Unreasonable Ineffectiveness of Machine Learning in Computer Systems Research
In 1960, the physicist Eugene Wigner wrote a famous essay titled “The Unreasonable Effectiveness of Mathematics in the Natural Sciences” in which he explored the question of why mathematics is so r…
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DragonFly BSD 4.8 released
DragonFly version 4.8 brings EFI boot support in the installer, further speed improvements in the kernel, a new NVMe driver, a new eMMC driver, and Intel video driver updates.
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Why does one Nginx worker take all the load?
Scaling up TCP servers is usually straightforward. Most deployments start by using a single process setup. When the need arises more worker processes are added.
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Postgres performance analysis resulted in a 10x improvement in CPU use
Heap is the only digital insights platform that shows everything users do on your site, revealing the "unknown unknowns" that stay invisible with other tools. Learn about how we improved our performance and saved millions!
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Leave your OS at home: the rise of library operating systems
The efficiency of Operating Systems (OSes) has always been in the spotlight of systems researchers, ever since the seminal Dijkstra’s THE multiprogramming system in early 60s. But the reason …
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ZFS from a MySQL perspective
As the purpose of a database system is to store data, there is close relationship with the filesystem. Yves Trudeau reconsiders the use of ZFS with MySQL.
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Fedora 26 released
[This message comes from the desk of the Fedora Project Leader directly. Happy release day! — Ed.] Hi everyone! I’m incredibly proud to announce the immediate availability of Fedora 26. Read more below, or just jump to download from: Get Fedora 26 Workstation Get Fedora 26 Server Get Fedora 26 Atomic Host ← includes…
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Decommissioned mobile devices as cheap energy-efficient compute nodes
The performance of mobile phone processors has been steadily increasing, causing the performance gap between server and mobile processors to narrow with mobile processors sporting superior performance per unit energy. Fueled by the slowing of Moore’s Law, the overall performance of single-chip mobile and server…
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Reducing power consumption for background tabs
Efficient power usage is an important aspect of speed, one of Chrome’s key pillars . To prolong battery life, Chrome should minimize power ...
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Facebook Trains ImageNet in 1 Hour
Facebook published a paper today detailing how they are able to train nearly 1.3 million images in under an hour using 256 Tesla P100 GPUs that previously took days on a single system.
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There's a mini RTOS in my language
AdaCore is the leading provider of commercial software solutions for Ada, C and C++ — helping developers build safe and secure software that matters.
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Redshift Spectrum – Exabyte-Scale In-Place Queries of S3 Data
Now that we can launch cloud-based compute and storage resources with a couple of clicks, the challenge is to use these resources to go from raw data to actionable results as quickly and efficiently as possible. Amazon Redshift allows AWS customers to build petabyte-scale data warehouses that unify data from a variety…