Open-source News

Schedutil Frequency Invariance Revised For Better Intel Performance + Power Efficiency

Phoronix - Mon, 11/18/2019 - 17:29
SUSE developer Giovanni Gherdovich has sent out the latest patches on supporting frequency invariance within the kernel's scheduler code and ultimately making use of it for select Intel CPUs to yield not only better raw performance but also power efficiency...

Cheat sheet for Linux users and permissions

opensource.com - Mon, 11/18/2019 - 16:02

The Linux operating system is a true multi-user OS, meaning it assumes that there's data on every computer that should be protected, whether in the interest of privacy, security, or system integrity.

Linux uses file ownership and permissions to manage file and folder access. 

For administrators who deal with different user environments all day, this system is easy to understand, calculate, and control.


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How internet security works: TLS, SSL, and CA

opensource.com - Mon, 11/18/2019 - 16:02

Multiple times every day, you visit websites that ask you to log in with your username or email address and password. Banking websites, social networking sites, email services, e-commerce sites, and news sites are just a handful of the types of sites that use this mechanism.

Every time you sign into one of these sites, you are, in essence, saying, "yes, I trust this website, so I am willing to share my personal information with it." This data may include your name, gender, physical address, email address, and sometimes even credit card information.


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How to use regular expressions in awk

opensource.com - Mon, 11/18/2019 - 16:00

In awk, regular expressions (regex) allow for dynamic and complex pattern definitions. You're not limited to searching for simple strings but also patterns within patterns.

The syntax for using regular expressions to match lines in awk is:

word ~ /match/

The inverse of that is not matching a pattern:


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Initial Patches Wire In C++20 Coroutines For The GCC Compiler

Phoronix - Mon, 11/18/2019 - 14:47
The GNU Compiler Collection continues picking up new features aligned for the upcoming C++20 standard. The latest are patches pending on the mailing list for implementing coroutines in C++...

How to Disable NetworkManager in CentOS/RHEL 8

Tecmint - Mon, 11/18/2019 - 14:36
In Linux, the Network Manager is a daemon that handles the detection of active networks and configuration of network settings. When up and running, the network manager automatically detects active network connections, where wireless...

Zswap Could See Better Performance Thanks To A B-Tree Search Implementation

Phoronix - Mon, 11/18/2019 - 13:26
For those using Zswap as a compressed RAM cache for swapping on Linux systems, the performance could soon see a measurable improvement...

Inside the Book of Red Hat

Red Hat News - Mon, 11/18/2019 - 13:00

Shared stories are the cornerstone of community. And in open organizations like Red Hat—where community is paramount—shared stories are especially important to the collective identity that binds participants together.

Intel Confirms Ponte Vecchio As 7nm General Purpose GPU

Phoronix - Mon, 11/18/2019 - 09:00
In addition to announcing the much anticipated oneAPI beta, Raja Koduri spent his time at Intel's event today also talking about "Ponte Vecchio" as their forthcoming general purpose GPU...

Linux 5.4-rc8 Released - Things Are Calm For Linux 5.4's Debut Next Week

Phoronix - Mon, 11/18/2019 - 07:49
As expected, Linus Torvalds opted for doing a 5.4-rc8 kernel release today rather than going straight to Linux 5.4 stable. However, he says he could have just as well done the stable kernel release thanks to the cycle settling down...

Intel Releases oneAPI Base Toolkit Beta For Performance-Focused, Cross-Device Software

Phoronix - Mon, 11/18/2019 - 04:46
Since Intel announced "oneAPI" last December we have been eagerly looking forward to its availability and today is finally that day! For SC19, Intel has made available the beta of the oneAPI Base Toolkit for developing speedy code that runs cross-architecture...

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