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Yesterday afternoon we ran a story on a new Linux driver for the Intel Poulsbo chipset, which right now is known for being notorious with its troubling Linux support. However, Intel apparently had been working on a new "special driver" that the Linux Foundation was showing off recently in Munich at a mobile development camp. Many details were not shared on this forthcoming driver, which reportedly will be released with Intel's soon-to-be-out Moorestown platform, but this morning we have a surprising number of details on this "special driver" from Intel. Martin Mohring of the Linux Foundation, who was the one showing off the Poulsbo driver on the two Moblin netbooks from the videos shown yesterday, sent over some intriguing details to Phoronix this morning.

With the release of CentOS 5.4 last month to bring this community enterprise operating system on par with Red Hat Enterprise Linux 5.4, we decided it was a good time to see how the server / workstation performance between this new CentOS release compares to that of Ubuntu 9.10, which was released last week, and also how it performs up against the release candidate of OpenSuSE 11.2. In this article are these benchmarks.

For the past two years we have hosted an annual Linux Graphics Survey in which we ask well over 20,000 users each time their video card preferences, driver information, and other questions about their view of the Linux graphics stack. This year we are hosting the survey once again to allow the development community to get a better understanding of the video hardware in use, what open-source and closed-source drivers are being used, and other relevant information that will help them and the Linux community.

AMD's Catalyst Linux driver has improved substantially over the past few years. Years ago the Catalyst Linux driver was in shambles with its performance being utterly poor, it lacked enthusiast-oriented features like CrossFire and OverDrive, and ATI customers had to wait months -- sometimes in excess of a year -- for any driver support in Linux. All of this though has changed with AMD now providing same-day Linux support, a near feature parity to the Windows Catalyst driver, and first-rate performance. Playing a critical role in improving the ATI Linux support has been Matthew Tippett, serving as the engineering manager for Linux Core Engineering since joining ATI Technologies in 2003. To put it in perspective, when Matthew started work at ATI, only the FireGL graphics cards were supported under Linux. However, today will be his last day serving ATI / Advanced Micro Devices.

In late September there was a call by Peter Hutterer for a new X.Org release process that consisted of a six-month release cycle for the X Server, all development work to be done in feature branches and not Git master, and a three-stage development cycle. The agreed upon version was pretty much the same as Peter's version, but it also called for the X.Org drivers to be pulled back into the X Server (around version 1.10)...

After a three month development period following the release of Phoronix Test Suite 2.0, the first beta release of Phoronix Test Suite 2.2 "Bardu" is now available for all of your testing needs on Linux, Mac OS X, OpenSolaris, and BSD platforms. Phoronix Test Suite 2.2 Beta 1 carries more than 200 changes since the release of 2.0 Sandtorg with many new prominent features being introduced, new test profiles added, and greater usability enhancements. In this article, we will go over some of the key improvements to be found in Phoronix Test Suite 2.2.

Fedora 12 provides "out of the box" support for kernel mode-setting with ATI R600/700 series graphics hardware, but it does not provide 3D acceleration by default. However, Red Hat's X developers have made it very easy to enable this 3D support for the ATI Radeon HD 2000, 3000, and 4000 series hardware by just installing a special Mesa package from yum. In this article we are taking a quick look at where the R600/700 3D support is at in Fedora 12.

There is just one week left until Ubuntu 9.10 "Karmic Koala" will be released, but is it worth the upgrade if you are running a netbook? From our testing of the development releases, it is most certainly worth the upgrade, especially when compared to Ubuntu 9.04 with its buggy Intel driver stack that caused many problems for Atom netbook users. Ubuntu 9.10 brings many usability improvements to the Linux desktop, various new packages, and the overall system performance has improved too. We have ran a set of benchmarks on both a Dell Inspiron Mini 9 and Samsung NC10 under Ubuntu 9.04 and 9.10 to illustrate the performance gains along with a few regressions.

Last weekend a few Phoronix benchmarks were underway of the Linux 2.6.32-rc5 kernel when a very significant performance regression was spotted. This regression caused the PostgreSQL server to run at about 18% of the performance found in earlier kernel releases. Long story short, in tracking down this performance regression we have finally devised a way to autonomously locate performance regressions within the Linux kernel and potentially any Git-based project for that matter. Here are a few details.

In late August we started asking our readers for any questions they had for NVIDIA about Linux and this graphics company's support of open-source operating systems. Twelve pages worth of questions were accumulated and we finally have the answers to a majority of them. NVIDIA's Andy Ritger, who leads the user-space side of the NVIDIA UNIX Graphics Driver team for workstation, desktop, and notebook GPUs, answered these questions. With that said, there are some great, in-depth technical answers and not the usual marketing speak found in many interviews. While Linux is our focus, Andy's team and his answers for the most part apply equally to NVIDIA drivers on Solaris and FreeBSD platforms too. There are many questions that range from the status of new features in their proprietary graphics driver to why it is unlikely there will be any official open-source support from NVIDIA to download percentages of their Linux driver.

Days prior to AMD's release of the ATI Radeon HD 5750 and Radeon HD 5770 graphics cards, NVIDIA released their GeForce G 210 and GeForce GT 220 graphics cards. Both of these NVIDIA graphics cards are for low-end desktop systems, but part of what makes them interesting is that they are the first NVIDIA GPUs built upon a TSMC 40nm process. To Linux users these graphics cards are also interesting in that they fully support all of the current features of VDPAU for Linux video decoding, including MPEG-4 support. We picked up an XFX GT220XZNF2 GeForce GT 220 1GB graphics card for this round of benchmarking on Ubuntu Linux.

In late September AMD had introduced the Radeon HD 5850 and Radeon HD 5870 graphics cards as the successors to the Radeon HD 4850 and Radeon HD 4870, respectively. These graphics cards, which are part of the Evergreen GPU family, have been performing quite nicely according to reports, but we have yet to test either of these Cypress graphics cards under Linux. Today though AMD is introducing the first midrange graphics cards in the Evergreen family. Under the Juniper codename, the Radeon HD 5750 and HD 5770 are being launched with both graphics cards being quite similar except for the ATI Radeon HD 5770 shipping with slightly higher core and memory clocks along with a different heatsink. In this review we have the first Linux-based benchmarks of these two new graphics cards, which are also the first publicized Linux benchmarks from any AMD Evergreen graphics processor.

Canonical will be releasing Ubuntu 9.10 at the end of next month while the final release of FreeBSD 8.0 is also expected within the next few weeks. With these two popular free software operating systems both having major updates coming out at around the same time, we decided it warranted some early benchmarking as we see how the FreeBSD 8.0 and Ubuntu 9.10 performance compares. For looking more at the FreeBSD performance we also have included test results from FreeBSD 7.2, the current stable release. In this article are mostly the server and workstation oriented benchmarks with the testing being carried out on a dual AMD Opteron quad-core workstation.

A few hours ago we talked about the Moblin 2.0 release, the launch of the Moblin Garage and Moblin Application Installer, and the next Moblin 2.1 release. Intel has provided an early development preview of the Moblin 2.1 operating system, which we briefly tested out on a Samsung NC10 netbook. Here are the screenshots and a few more details.

Earlier this month we provided a launch-day preview of the P55 Chipset on Linux along with benchmarks from the Core i5 750 and Core i7 870, which are the new quad-core Lynnfield processors. We noticed some odd performance issues under Linux when testing out these new processors, but Intel has since chimed in and we are in the process of running an updated set of tests.

Last December we had looked at the Ubuntu 9.04 home encryption performance after this feature appeared in a development snapshot as an alternative to those looking for security some of their data but are not looking for completely encrypting the hard drive due to the performance impact or other reasons. The home encryption feature ended up being disabled in Ubuntu 9.04 unless a special boot parameter was used, but it has now reappeared in Ubuntu 9.10.

Linux distributions designed specifically for use on netbooks is nothing new. Canonical produces the Ubuntu Netbook Remix version of Ubuntu for these small-sized devices, Intel has their Moblin distribution that is very fast and offers an attractive interface, gOS has their own netbook distribution, Linpus has QuickOS, and the list goes on. One of the newest netbook distributions coming around is Jolicloud, which is based upon Ubuntu Netbook Remix and is self-described as a cool new OS for your netbook. Jolicloud is focused upon building an OS around the web and one that merges open-source and the open web.

Now that we have provided a brief overview of the Intel P55 and how it functions under Linux, our larger area of concentration is looking at the Linux performance of the P55 with the new Core i5 750 and Core i7 870 processors. We have a number of benchmarks in this article along with more information on these Lynnfield processors.

Last Friday we published Mac OS X 10.6 benchmarks and then on Monday they were joined by Ubuntu 9.10 vs. Mac OS X 10.6 benchmarks. One of the requests that has come up since publishing those articles are to carry out a set of tests comparing the performance of LLVM and LLVM-GCC. With Apple's Snow Leopard release, some parts of the operating system were built using LLVM-GCC for optimized performance, although this compiler is not yet matured. In this article we have a set of 12 benchmarks comparing GCC to LLVM-GCC.

Back on Friday we published Mac OS X 10.6 benchmarks and found it to offer some terrific performance improvements, but at the same time, there were a few notable regressions. Apple engineers have been working hard at pushing technologies like Grand Central Dispatch (GCD), OpenCL, full 64-bit support, and other changes to their OS X stack to bolster its performance capabilities and reduce the overall footprint.