ABI Research predicts that Chromebook sales will continue to increase and reach 11 million shipments worldwide by 2019.
ABI Research States Chromebook Shipments Reach 2.1 Million for 2013
AMD Partners With Mentor To Push Embedded Open-Source Linux
AMD and Mentor Graphics are teaming up to push open-source Linux development for embedded systems…
Humble Indie Bundle 9 For PC & Android
The latest Humble Indie Bundle is now available for both PCs and Android systems…
First Beta of KDE Frameworks 5 Released, Install it on Your System
Frameworks 5 enters beta stage today. The beta release introduces porting aids for Application developers.
Linux 3.14 Release: No ‘Pi’ But a New ‘PIE’ Fights Bufferbloat
After adding an extra release candidate to solidify the final result — to the tune of a week’s delay — Linux creator Linus Torvalds on Sunday unleashed version 3.14 of the Linux kernel.
“We had a few fairly late changes that I could have done without, but the changelog from -rc8 is still pretty small, and I’m feeling pretty good about it all,” Torvalds wrote in the official announcement on Sunday night. “If we did end up with any last-minute problems due to the final spurt of patches, they’ll be pretty specific, and it really didn’t make sense to me to delay the release without anything known pending.”
Although the release’s version number elicited a number of requests for pi-themed names early on, Torvalds held his ground. “I realize that as a number, 3.14 looks familiar to people, and I had naming requests related to that,” he explained in his announcement of the first release candidate back in February. “But that’s simply not how the nonsense kernel names work. You can console yourself with the fact that the name doesn’t actually show up anywhere, and nobody really cares.”
“Shuffling Zombie Juror” was the name Torvalds chose instead. Naming issues aside, this new version of the Linux kernel adds a new deadline scheduler and a new anti-bufferbloat feature, among other notable additions. Ready for a run-down? Here are some of the highlights.
1. A Key Blow Against Bufferbloat
Bufferbloat is the ongoing problem whereby excess buffers in the network cause high latency and jitter, and we’ve already seen several new features added to Linux to combat the problem — the Codel queue management algorithm added in Linux 3.5 was just one example. Now joining the ranks of the anti-bufferbloat tools already out there, Linux 3.14 marks the debut of a new network packet scheduler called “PIE” (short for Proportional Integral controller Enhanced) that’s designed to control the average queueing latency to a target value.
“Simulation results, theoretical analysis and Linux testbed results have shown that PIE can ensure low latency and achieve high link utilization under various congestion situations,” explains the changelog on KernelNewbies.org. “The design incurs very small overhead.”
2.Better Real-Time Scheduling
Though Linux already offers support for prioritizing the scheduling of processes so that higher-priority processes get more scheduling time than lower-priority ones do, the prioritization approach used so far has not been optimal for real-time tasks. Deadline scheduling, or “SCHED_DEADLINE,” is now included in Linux 3.14 and offers an alternative better-suited for real-time tasks. Essentially, deadline scheduling implements the “earliest deadline first“ (EDF) algorithm to ensure that all processes are completed before their deadlines.
3. A Stable Zram at Last
Though it used to be called Compcache, Zram is a memory compression technology that has been part of the Linux kernel since the arrival of version 2.6.33 back in 2010. Now, with Linux 3.14, Zram has been moved out of staging and is considered stable at last. Zram is particularly good at improving responsiveness in systems with limited memory, and is already being used in Android 4.4, Cyanogenmod, Chrome OS and Lubuntu.
That, of course, is a mere sampling of what’s new in Linux 3.14; other additions include a userspace locking validator, kernel address space randomization and TCP automatic corking. For a full summary, check out the changelog on KernelNewbies.org
Cisco Expands Security Solutions with Open Platform, Analytics
The company’s security ecosystem will integrate with Cisco Internet of Things products, with the goal of providing developers a common platform to deliver solutions for public safety, utilities and industrial environments.
The Exciting Intel DRM Driver Changes For Linux 3.15
Intel has lined up many exciting open-source graphics driver improvements for their DRM kernel module with the Linux 3.15 release…
Hypervisors are the Pillars of the Cloud, not the Achilles Heel
Bromium’s Simon Crosby strongly advises us not to succumb to Cloudophobia.
Scheduler Improvements Land In Next Kernel Release
The latest exciting set of kernel changes to mention for the Linux 3.15 kernel are some scheduler enhancements…
You Can’t Have DevOps Without Open Source

You probably think I’m going to talk about all the reasons why you should use open source tooling as the foundation for an effective DevOps culture in your organization, but that’s not what this is about. Not to marginalize the complexity of the challenges faced by the team I work with, but I have confidence that the engineers are going to figure the tooling part out. Believe it or not, the daunting part is wrapped in cultural change.
I have spent a significant amount of time reading about cultural change, what you need to have an effective DevOps community, how you build high functioning teams, and asking the question, “How do I DevOp?” The ideas I’ve read have given me a few new things to stick in my tool belt. However, nothing has resonated with me as much as this: