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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

Benchmarking GCC 4.2 Through GCC 4.8 On AMD & Intel Hardware

Here are benchmarks of all major GNU Compiler Collection releases from GCC 4.2.4 through the latest GCC 4.8 development build. Benchmarking was of the seven GCC compiler releases from an Intel Core i7 "Clarksfield" system and an AMD Opteron "Shanghai" workstation.
23 July 2012 - 20 Comments

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

451 software articles published on Phoronix.
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