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Compiler Tuning With Intel Ivy Bridge Processors

In this article is a look at the impact that compiler tuning has for the latest-generation Intel Ivy Bridge processors. Being tested is the GNU Compiler Collection (GCC) while passing various architecture flags to look at the impact they have on the results.
5 June 2012 - 3 Comments

Intel Ivy Bridge Linux Virtualization Performance

As the latest Intel Ivy Bridge numbers to push out, here is a look at the Linux virtualization performance with the Core i7 3770K processor when comparing its raw/bare-metal performance to Linux KVM (Kernel-based Virtual Machine) virtualization and Oracle VM VirtualBox under Ubuntu 12.04 LTS.
31 May 2012 - 7 Comments

11-Way Intel Ivy Bridge Compiler Comparison

From an Intel Core i7 3770K "Ivy Bridge" system here is an 11-way compiler comparison to look at the performance of these popular code compilers on the latest-generation Intel hardware. Among the compilers being compared on Intel's Ivy Bridge platform are multiple releases of GCC, LLVM/Clang, DragonEgg, PathScale EKOPath, and Open64.
30 May 2012 - 32 Comments

XFS, Btrfs, EXT4 Battle It Out On Linux 3.4

Following the Linux 3.4 kernel benchmarks from last week, available now are the results from a three-way file-system comparison using the Linux 3.4 kernel as well as the Linux 3.2 and 3.3 kernels for reference. The three file-systems being pitted against each other are Btrfs, EXT4, and XFS.
29 May 2012 - 10 Comments

Intel Ivy Bridge: Unity/Compiz Continues To Impair The Linux Desktop

As the latest Intel Ivy Bridge Linux graphics benchmarks to publish, here is a comparison of some of the different desktop environment options of Ubuntu 12.04 LTS when using the Intel Linux graphics driver on the Core i7 3770K with its HD 4000 graphics. The desktop environments being compared include Unity, Unity 2D, KDE, and Xfce. The default Ubuntu Unity desktop with Compiz continues to have problems for the open-source friendly company's drivers.
28 May 2012 - 26 Comments

Linux 3.4 Kernel Benchmarks

Here's a look at the performance of the Linux 3.4 kernel, which was recently released, compared to all major kernel releases going back to Linux 2.6.39. Multiple kernel sub-systems are being compared in this round of Intel Linux benchmarking.
25 May 2012 - 6 Comments

Preview: EKOPath Benchmarks On AMD's Bulldozer

It has been a while since last running any tests of PathScale's EKOPath compiler, but in this preview article are some AMD FX-8150 "Bulldozer" benchmarks of the EKOPath compiler compared to GCC 4.7.0, LLVM/Clang 3.1 SVN, and AMD Open64 4.5.1.
28 April 2012 - 7 Comments

Tweaking KDE's KWin For Linux Gaming Performance

After looking recently at the impact on performance and power consumption of various Linux desktop environments running under Ubuntu 12.04 (Unity, Unity 2D, GNOME Shell, KDE, Xfce, LXDE, and Openbox), there were requests by many Phoronix readers to look at the impact of KDE on 3D gaming. KDE's KWin compositing window manager offers several options that can be easily changed that have a direct result on the Linux system's performance for full-screen OpenGL games.
19 April 2012 - 19 Comments

AMD's FX-8150 Bulldozer Benefits From New Compilers, Tuning

After looking at how Intel's Sandy Bridge processor performance has evolved with the new GCC 4.7 compiler and Apple's forthcoming LLVM 3.1 with Clang, here are benchmark results from the AMD FX-8150 "Bulldozer" Eight-Core processor with GCC 4.7.0 and the latest LLVM/Clang 3.1 development code along with looking at the performance impact of various compiler tuning flags for this latest-generation AMD CPU. Making things even more interesting, AMD's Open64 4.5.1 compiler was also tossed into the testing mix.
18 April 2012 - 40 Comments

GCC 4.7 Compiler Performance On AMD FX-8150 Bulldozer

While we have seen that Intel's Sandy Bridge is doing well on the new GCC 4.7 compiler, has AMD's Bulldozer CPU architecture advanced at all for this leading multi-platform compiler? Up today are benchmarks of GCC 4.7.0 -- with comparative benchmarks going back to GCC 4.4 -- from an AMD FX-8150 Eight-Core Bulldozer setup.
6 April 2012 - 7 Comments

454 software articles published on Phoronix.
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