The IBM Advance Toolchain for PowerLinux is a set of open source development tools and runtime libraries that allow users to take leading edge advantage of IBM's latest POWER hardware features on Linux. A new update release for the 5.0 series is now available, and it includes the following: The GNU C Library provides an optimized version of sched_getcpu . A new version of itrace tool that supports trace controls. Fixes for Intel Threading Build Blocks headers. Binutils fixes the following issues:
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By Jeff Scheel For the past several years, PowerLinux has been very active on building a "social" media program. During this time, we have learned lots and have not always been successful. However, one of the key questions I realize that we have not properly explained is our strategy. So, I thought I would take the time to explain some key thoughts. Point #1: The PowerLinux social media program (online presence) is anchored here in developerWorks (dW). The PowerLinux Community contains the... [More]
By: Tiago Sturmer Daitx. Great news from the OpenJDK land! The OpenJDK PowerPC/AIX port , lead by Volker Simonis, has just been endorsed by Mikael Vidstedt and funded by SAP, IBM, and Oracle. What does that mean? JEP is an acronym for " JDK Enhancement-Proposal & Roadmap Process ". According to it "endorsement" means "Accepted for inclusion in the Roadmap by the OpenJDK Lead". So the PowerPC/AIX Port is now officially in the long-term Roadmap for JDK Releases. Hurray! The... [More]
Hi Folks, Last week, the Fedora ppc64 team announced the availability of their beta for Fedora 19. The announcement can be found at -> https://fedoraproject.org/wiki/F19_PPC_Beta_release_announcement Please take the time to read the announcement fully through as both the ppc64 and x86 announcements point out specific gotchas for Fedora users. As for the ppc64 beta, I'd like to point out and expand on a few notable items in the beta itself: Fedora 19 now ships with an llvmpipe enabled software rendorer. This is a... [More]
Over on Google+ , Jeff Scheel pointed out how easy it is to get access to a partition for PowerLinux testing in the Open Source Lab at Oregon State University (OSU). Check it out! Jeff followed that post with another open question for community developers and projects that may need a PowerLinux loaner. If the OSU lab doesn't fulfill what you are looking for, you might ask Jeff to consider a loaner for your project. Follow-up over on Google+ if you are interested.
For an interesting cross-post from IBM DeveloperWorks, check out a recent post over in the Virtualization@IBM blog where Jean Staten Healy and others talk about KVM and Linux. KVM: The logical choice for Linux Many people many not realize how well security, simplicity, and common usage is baked into both Linux and KVM. KVM is both stable implementation and a technology in progress in the community. As the blog article points out: The open source hypervisor KVM (Kernel-based Virtual... [More]
By: Tulio Magno Quites Machado Filho The IBM Advance Toolchain for PowerLinux is a set of open source development tools and runtime libraries that allow users to take leading edge advantage of IBM's latest POWER hardware features on Linux. A new update release is now available, and it includes the following: A new version of itrace tool that supports trace controls. Fixes for Intel Threading Build Blocks headers. A Valgrind fix for unhandled syscalls when running Valgrind on a Java 6 or 7 application. A GCC fix for the... [More]
By: Tulio Magno Quites Machado Filho The IBM Advance Toolchain for PowerLinux repositories are moving to a new host. Users of the IBM POWER Linux Tools Repository will be automatically moved to the new repositories and don't need to change their environments. But users that have manually configured the old repositories need to add the new ones in order to keep receiving updates of the Advance Toolchain. It isn't necessary to remove the old repositories yet. The steps to manually setup the new repositories are described with details in... [More]
By: Steve Munroe . PowerLinux is Linux, one of several hardware platforms that Linux supports. Other Linux platforms include S390, ARM, Intel IA32 and x86_64, and a wide variety of the special purpose or embedded use processors. When I work with customers and independent software developers, this concept of being the same (Linux is Linux) and simultaneously different (platform) can be confusing. Some want to be reassured that PowerLinux is “standard Linux”; to that, the short emphatic answer is yes . Others want... [More]
By: Jenifer Hopper
Are you interested in better understanding memory access performance? A new article, Untangling memory access measurements - memory latency explains how to use an example benchmark called lat_mem_rd to measure memory read latency on IBM® Power Systems™ servers running Linux. This article takes a practical approach to measuring memory latency performance, from understanding initial results to moving on to examining the effects of more in-depth system settings and... [More]
By: Breno Leitão On new IBM® Power Systems™ servers running Linux, a set of the PCIe slots support a unique feature called 64-bit Direct Memory Access (DMA) , which improves I/O operations. A new article was written explaining this feature and how to take advantage of it. Moreover, performance data is discussed throughout the article, as comparing the bandwidth and latency improvement provided by this feature when using a 10Gbps Network adapter on a PowerLinux 7R2 machine.
Over in the openSUSE realm, the "Open Build Service" (OBS) recently was updated with new IBM PowerLinux 7R2 servers. A recent news update was posted on news.opensuse.org . "To ensure continued Power and Linux compatibility going forward, IBM and SUSE recently partnered to add more build capability to the openSUSE Build Service. The openSUSE Build Service is a service which offers an automatic, consistent, and reproducible way to build and distribute Linux packages from source code to multiple... [More]
By: Jose Ricardo Ziviani. About IBM Installation Toolkit for PowerLinux version 5.4 The IBM® Installation Toolkit for PowerLinux is an optional tool that speeds up the installation of Linux, and gives you access to the IBM value-added software necessary to fully use the capabilities of the Power® platform. You can use the IBM Installation Toolkit on PowerLinux servers, including IBM PowerLinux™ and IBM Power Systems™ servers running Linux. New in IBM Installation Toolkit version 5.4:... [More]
By: Steve Dobbelstein. On February 22, 2013, IBM® published a new SPECjEnterprise®2010 result on a two socket system. The result was achieved on the new IBM PowerLinux™ 7R2 system using IBM WebSphere® Application Server v8.5 and IBM DB2® 10.1 running on Red Hat® Enterprise Linux® release 6.4. The Linux Technology Center (LTC) team, the WebSphere team, the Java team, and the DB2 team all worked together to analyze and tune the performance of the hardware and... [More]