Software Archives
The Performance Between GCC Optimization Levels

For those that have never benchmarked the performance differences between GCC's different optimization levels, here are some recent test results comparing the performance differences when using an AMD FX-8150 processor with GCC 4.7.2.

13 October 2012 - 23 Comments
LLVM/Clang 3.2 SVN Compiler Performance

With LLVM 3.2 set for release in mid-December, the time to benchmark this next major compiler infrastructure release paired with the Clang C/C++ compiler is approaching. Well, that time has already come; up this weekend are some benchmarks of the Intel Core i7 3960X "Sandy Bridge Extreme Edition" on Ubuntu 12.04 when comparing LLVM/Clang 3.1 to their latest SVN development code for LLVM/Clang 3.2 as of this week.

13 October 2012 - 4 Comments
X11 Turns 25 Years Old Today

It was 25 years ago today, on 15 September 1987, that Version 11 Release 1 of the X Window System (a.k.a. X11) was released. X11 has evolved a long way since then, but this 25-year-old technology out of MIT remains at the heart of every Linux desktop.

15 September 2012 - 60 Comments
Why Mono Is Desirable For Linux

On this Friday we have a freelance open-source opinion article that was written by Ciprian Khlud. This developer, who uses C# among other languages at his place of employment along with a combination of Windows and Linux, argues why the Mono open-source ECMA CLI/C#/.NET implementation is actually desirable for Linux.

14 September 2012 - 321 Comments
2D Also Bad For Ubuntu Unity Against KDE, GNOME, LXDE, Xfce

In continuation of last week's OpenGL benchmarks under Unity, GNOME, KDE, Xfce, and LXDE desktops from Ubuntu 12.10, here are benchmarks looking at the 2D performance of these different Linux desktop environment choices when testing both the Intel UXA and SNA acceleration back-ends.

11 September 2012 - 14 Comments
VirtualBox 4.2 Virtualization Benchmarks

For those curious whether the forthcoming Oracle VirtualBox 4.2 virtualization platform delivers on any performance enhancements, at least as it pertains to Linux virtualization, here are some quick benchmarks.

26 August 2012 - 6 Comments
GCC 4.7 Link-Time Optimization Performance

With the recent interest regarding Link-Time Optimization support within the Linux kernel by GCC, here are some benchmarks of the latest stable release of GCC (v4.7.1) when benchmarking several common open-source projects with and without the performance-enhancing LTO compiler support.

21 August 2012 - 17 Comments
Ubuntu's Unity Decision Affects 2D Performance Too

Last week I delivered OpenGL/3D benchmarks of Ubuntu 12.10 when comparing the performance of the default Unity desktop to the now-defunct Unity 2D environment. Canonical's decision to kill Unity 2D means that for those now forced to use the Compiz-based Unity may experience lower frame-rates, high power consumption with Unity-over-LLVMpipe, and other differences. Additional testing has shown how Unity is affecting the 2D graphics performance.

20 August 2012 - 21 Comments
Intel Ivy Bridge: GCC 4.8 vs. LLVM/Clang 3.2 SVN

Kicking off the Linux benchmarks this weekend are some early numbers from the GCC 4.8 and LLVM/Clang 3.2 development compilers when running on Intel's latest-generation Core i7 "Ivy Bridge" processor. GCC 4.8 and LLVM/Clang 3.2 are still months away from being formally released, but this article provides a glimpse at how the open-source compiler battle is panning out.

18 August 2012 - 22 Comments
Ubuntu's Unity Has Room To Improve Performance

Following yesterday's news that Ubuntu 12.10 will drop the Unity 2D desktop, I carried out some quick tests comparing the latest state of the Unity desktop with Compiz against the lightweight Unity 2D desktop that's now being removed. To not much surprise, the composited Unity desktop still has some performance shortcomings for OpenGL workloads compared to Unity 2D.

17 August 2012 - 15 Comments
Running Wayland: It Works, But A Lot Of Work Remains

Following the news shared today that Ubuntu's delayed their Wayland System Compositor adoption from Ubuntu 12.10 to at least Ubuntu 13.04 there was the more positive news that there's an updated third-party spin of an Ubuntu derivative running Wayland. This article has some more information on that new "RebeccaBlack OS" release along with screenshots that provide a glimpse of where the Wayland adoption is at today.

10 August 2012 - 85 Comments
Ubuntu Delays Wayland System Compositor

Ubuntu 12.10 will not be shipping with a Wayland-based system compositor as was once hoped for, but the experimental system compositor can be enabled from a PPA in a very primitive state.

10 August 2012 - 5 Comments
VMware Fusion Stuns VirtualBox In CPU Tests

Aside from VMware virtualization smacking Oracle VirtualBox when it comes to the OpenGL support that's passed through to VM guests, VMware Fusion 4 also does a nice job at outperforming VirtualBox when it comes to computational-focused workloads.

10 August 2012 - 11 Comments
VMware Virtualization With OpenGL Still Smacks Oracle VirtualBox

Earlier this year I said VMware's virtual GPU driver was running fast for Linux -- in comparison to Oracle's VM VirtualBox 3D guest acceleration support. This continues to be the case with VMware's OpenGL stack leading the way with superior support and performance. Recently I ran some desktop virtualization tests under VMware Fusion 4.1.3 and Oracle VM VirtualBox 4.1.18 from the Retina MacBook Pro with OS X 10.8 Mountain Lion host. Even with the OS X host, VMware's 3D support exposed to the Ubuntu 12.04 LTS virtualized guest was much faster.

8 August 2012 - 16 Comments
AHCI vs. IDE Modes With A SATA 3.0 SSD On Linux

Days ago benchmarks were shared from OpenBenchmarking.org that compared AHCI and IDE modes under Linux when it came to the resulting disk performance. There was a fair amount of interest generated out of that so some AHCI vs. IDE mode comparisons from a Serial ATA 3.0 SSD on an Ubuntu Linux host were benchmarked at Phoronix.

5 August 2012 - 17 Comments
Intel Ivy Bridge Is Okay On Linux Power Usage

With talk of a massive power regression in the recently released Linux 3.5 kernel, yesterday I began benchmarking some different systems with varying versions of the Linux kernel looking for any new kernel power regressions on different hardware.

31 July 2012 - 1 Comment
Phoronix Test Suite 4.0 Advances Linux Benchmarking

Phoronix Test Suite 4.0-Suldal expands the capabilities of Phoronix Media's leading open-source, multi-platform testing software to advance the areas of standardized automated benchmarking, per-commit regression testing, and performance efficiency monitoring.

23 July 2012 - 2 Comments
Ubuntu 12.10: Linux KVM vs. Xen Virtualization Preview

With Ubuntu 12.10 coming up in just a few months, here are our first virtualization benchmarks from the forthcoming "Quantal Quetzal" operating system. Compared in this article is the raw/bare-metal performance to Linux KVM and Xen virtualization from the latest Linux 3.5 kernel.

16 July 2012 - 18 Comments
ZFS On Linux With Ubuntu 12.04 LTS

It has been a while since last benchmarking the ZFS file-system under Linux, but here's some benchmarks of the well-known Solaris file-system on Ubuntu 12.04 LTS and compared to EXT4 and Btrfs when using both a hard drive and solid-state drive.

27 June 2012 - 41 Comments
AMD OpenCL APP SDK Beats Intel's Own SDK On Ivy Bridge

Here are some OpenCL benchmarks from the Intel Ivy Bridge CPU. Being compared though is AMD's APP SDK, which does support running OpenCL on x86 CPUs, to Intel's CPU-based OpenCL SDK for Linux. To some surprise, AMD's Accelerated Parallel Processing SDK when using the Ivy Bridge CPU is actually faster than the Intel OpenCL SDK on the same hardware.

13 June 2012 - 13 Comments
Unity 5.12 Fixes Ubuntu OpenGL Performance Problems

Issued as a stable release update to Ubuntu 12.04 LTS last week was Unity 5.12. Aside from offering some minor usability enhancements and various fixes, Unity 5.12 should fix some of the OpenGL performance problems that many users have experienced -- and multiple Phoronix articles have noted the OpenGL performance slowdown -- so here's some tests seeing how Unity 5.12 now affects the OpenGL gaming performance.

11 June 2012 - 9 Comments
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

477 software articles published on Phoronix.