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Software

Running The Native ZFS Linux Kernel Module, Plus Benchmarks

In August we delivered the news that Linux was soon to receive a native ZFS Linux kernel module. The Sun (now Oracle) ZFS file-system has long been sought after for Linux, though less now since Btrfs has emerged, but incompatibilities between the CDDL and GPL licenses have barred such support from entering the mainline Linux kernel. There has been ZFS-FUSE to run the ZFS file-system in user-space, but it comes with slow performance. There has also been work by the Lawrence Livermore National Laboratories in porting ZFS to Linux as a native Linux kernel module. This LLNL ZFS work though is incomplete but still progressing due to a US Department of Energy contract. It is though via this work that developers in India at KQ Infotech have made working a Linux kernel module for ZFS. In this article are some new details on KQ Infotech's ZFS kernel module and our results from testing out the ZFS file-system on Linux.
22 November 2010 - 20 Comments

What's Going On With Iveland & OpenBenchmarking.org

Last month I said what OpenBenchmarking.org is and how it should change the benchmarking / automated testing landscape once it's released in conjunction with Phoronix test Suite 3.0 "Iveland" early next year. I have also showed off the new graphing capabilities for this software and provided another update at the end of last month. Here now is another update with some more exciting details.
17 November 2010 - 9 Comments

The ~200 Line Linux Kernel Patch That Does Wonders

In recent weeks and months there has been quite a bit of work towards improving the responsiveness of the Linux desktop with some very significant milestones building up recently and new patches continuing to come. This work is greatly improving the experience of the Linux desktop when the computer is withstanding a great deal of CPU load and memory strain. Fortunately, the exciting improvements are far from over. There is a new patch that has not yet been merged but has undergone a few revisions over the past several weeks and it is quite small -- just over 200 lines of code -- but it does wonders for the Linux desktop.
16 November 2010 - 224 Comments

The Linux 2.6.37 Kernel With EXT4 & Btrfs

Now that the Linux 2.6.37 kernel merge window is closed and this next major release is in the middle of its development cycle, we have new benchmarks to publish looking at the file-system performance of Btrfs and EXT4 compared to earlier releases. The Linux file-system performance is under constant evolution as shown by our five years of Linux kernel benchmarks and more recent file-system-focused articles such as looking at EXT4 and Btrfs regressions in Linux 2.6.36, solid-state drive Linux benchmarks, and even ZFS-FUSE benchmarks, among other similar articles.
10 November 2010 - 11 Comments

Compiler Benchmarks Of GCC, LLVM-GCC, DragonEgg, Clang

LLVM 2.8 was released last month with the Clang compiler having feature-complete C++ support, enhancements to the DragonEgg GCC plug-in, a near feature-complete alternative to libstdc++, a drop-in system assembler, ARM code-generation improvements, and many other changes. With there being great interest in the Low-Level Virtual Machine, we have conducted a large LLVM-focused compiler comparison at Phoronix of GCC with versions 4.2.1 through 4.6-20101030, GCC 4.5.1 using the DragonEgg 2.8 plug-in, LLVM-GCC with LLVM 2.8 and GCC 4.2, and lastly with Clang on LLVM 2.8.
8 November 2010 - 62 Comments

Five Years Of Linux Kernel Benchmarks: 2.6.12 Through 2.6.37

While we have conducted studies related to the Linux kernel performance in the past such as benchmarking up to twelve kernel releases, going out the door this morning are the results from the largest-ever Linux kernel comparison conducted at Phoronix, and very likely the largest ever of its kind regardless of source. Every major Linux kernel release from Linux 2.6.12, which was released in mid-2005, up through the latest Linux 2.6.37 development code was tested. This represents the past five years of the Linux kernel and shows how the performance has evolved over the past 25 stable kernel releases and the most recent 2.6.37 development kernel.
3 November 2010 - 74 Comments

How Linux Benchmarking Will Change

Phoronix Test Suite 3.0 (codenamed "Iveland") has been under heavy development for more than a month and there is still at least three more months left of work before this major release will be christened. Today though it is time to publicly share the first details (aside from those that learned about it in the Augustiner tent at Oktoberfest) for one of the new components to be making up a critical piece of the Phoronix Test Suite 3.0 platform: OpenBenchmarking.org.
20 October 2010 - 7 Comments

Is Linux Power Management Getting Better Or Worse?

With three laptops representing different generations of mobile hardware, we loaded up the past four stable releases of Fedora Linux plus the most recent Fedora 14 Alpha release and then carried out an arsenal of tests looking at how the battery power consumption rate has changed since 2008. If you are concerned at all about running Linux on your battery-powered mobile devices, this article is worth reading.
23 September 2010 - 21 Comments

Direct3D 10/11 Is Now Natively Implemented On Linux!

It's a pity Luca Barbieri or any Mesa / Gallium3D developers are not at Oktoberfest as they are deserving of more than a few Maß of Augustiner. In fact, today a new Gallium3D state tracker was pushed into Mesa and it's perhaps the most interesting state tracker for this open-source graphics driver architecture yet. It's a state tracker that exposes Microsoft's DirectX 10/11 API on Linux! And it's already working and can be hooked into Wine!
21 September 2010 - 270 Comments

A First Look At The 2010 Linux Graphics Survey Results

Earlier this month we started once again our annual Linux Graphics Survey in which we poll our readers about their choices and opinions concerning graphics cards, display drivers, and other graphics / X.Org related features of the Linux desktop. While this survey is still going on through the end of September -- so you still have time to participate -- here are the results from the first 6,300 people to submit their responses. We are publishing the results so far since there is the X Developers' Summit this week in Toulouse and some of these findings may prove to be useful during those discussions.
13 September 2010 - 70 Comments

451 software articles published on Phoronix.
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