The good folks at RotateRight informed us that their system-wide performance profiler for Linux, Zoom, has been updated to version 1.3. Zoom profiles are system-wide and precise down to the instruction level, and they capture backtraces. Zoom also analyzes and annotates code with specific tuning advice for most compilers and processors. The latest product update features a number of enhancements to help increase programmer productivity and optimize Linux application performance, both of which reduce costs by making software faster and more energy-efficient. These include support for Intel Atom and Core i7 processors, ability to show kernel source and assembly, support for external debug info files, calculation of symbol ranges when missing symbol information and several others. Zoom is available for Linux x86-64, i386 and PowerPC 64.
Sans Digital's new AccuSTOR AS212X2 Series is a 2U 12-bay SAS enclosure for mid-range and high-capacity storage environments. Sans Digital headlines the product as the first JBOD rackmount to overcome the lack of monitoring ability when utilizing a RAID controller card. A built-in selectable switch allows hardware monitoring via various popular brands of RAID controller interfaces. This new monitoring feature, says Sans Digital, “further simplifies the management process by allowing system administrators to access hard drive status, as well as power supply and cooling fan information”. Data is protected by RAID protection provided by LSI, 3ware, Intel, Dell, ATTO, Areca or Adaptec SAS RAID controllers. The AS212X2 uses the latest SAS expander technology to connect up to 12 high-performance SAS drives or high-capacity SATA drives to the host computer using a single SAS cable, enabling a system bandwidth of up to 1,200MB/s.
The SheevaPlug is one of the diminutive yet powerful devices in Marvell Semiconductor's “Plug Top Computing” initiative, a computing approach that features embedded, Linux-powered computers that plug in to electrical sockets. These devices, says Marvell, consume less than 5 Watts, can be left on all the time and “are capable of running network-based services that normally require a dedicated [PC]”. These services include Web, e-mail and VPN servers hosted in homes and small offices. SheevaPlug features a 1.2GHz Marvell Sheeva CPU and 512MB each of Flash and DDR2 memory. Network connectivity is via Gigabit Ethernet; peripherals can be connected using USB 2.0. The SheevaPlug development kit contains the SheevaPlug and software tools needed to develop applications for the platform.
The open-source app Magento is one of the most evolved e-commerce solutions out there. For those starting a project from scratch, William Rice's new book, Magento Beginner's Guide, from Packt Publishing could be the ticket to success. Running on Apache-MySQL-PHP, Magento offers features such as multiple storefronts, templates and themes and multiple payment gateways (such as PayPal and credit cards). Because getting started with Magento can be daunting, Rice's book offers a step-by-step guide to getting a store up and running. It covers installation, configuration, populating a store with products, accepting payments, maintaining relationships with customers and fulfilling orders. After utilizing the book, readers will have a basic but complete and functional on-line store.
Realize your clandestine plan to develop the next runaway hit game with Luke Benstead's Beginning OpenGL Game Programming, 2nd Ed., from Course Technology PTR. The book provides “an easy-to-understand introduction to OpenGL, introducing all the basic elements of OpenGL as they apply to games”, says the publisher. In addition, the new 2nd edition covers features found in OpenGL 3.0, the new and more efficient API that provides Direct3D 10 level graphics and is platform-independent. A companion CD-ROM features the source code used in the book, bonus chapters, games and the OpenGL Extension Library. Target readers are beginning game developers or programmers who are new to game development.
James Gray is Products Editor for Linux Journal.
Practical Task Scheduling Deployment
July 20, 2016 12:00 pm CDT
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
Join Linux Journal's Mike Diehl and Pat Cameron of Help Systems.
Free to Linux Journal readers.Register Now!
- Murat Yener and Onur Dundar's Expert Android Studio (Wrox)
- SUSE LLC's SUSE Manager
- My +1 Sword of Productivity
- Non-Linux FOSS: Caffeine!
- Managing Linux Using Puppet
- Tech Tip: Really Simple HTTP Server with Python
- Google's SwiftShader Released
- Parsing an RSS News Feed with a Bash Script
- SuperTuxKart 0.9.2 Released
- Doing for User Space What We Did for Kernel Space
With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide