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Software

Intel Haswell Might Have Regressed Hard On Linux

For your viewing pleasure this weekend are some extra benchmarks of various Intel Sandy Bridge, Ivy Bridge, and Haswell HD Graphics when using an Ubuntu 14.04 Linux development snapshot with the Linux 3.13 kernel and Mesa 10.0.1. The processors tested included the Core i3 2120, Core i5 2500K, Core i5 3470, Core i7 3770K, Core i3 4130, and Core i7 4770K. These tests appear to represent a huge drawback in performance for Intel Haswell on Linux compared to earlier results.
12 January 2014 - 14 Comments

The Most Popular Linux Stories Of 2013

With 2013 ending, here's the most popular Linux, open-source, and hardware stories covered in 2013 on Phoronix. Enjoy and look forward to many more great and exclusive Linux articles on Phoronix in 2014.
31 December 2013

Clang 3.4 Performance Very Strong Against GCC 4.9

After earlier this month delivering LLVM Clang 3.3/3.4 benchmarks for the new compiler infrastructure out of Apple, today are results that directly compare the new LLVM Clang 3.4 performance against the stable GCC 4.8.2 compiler and GCC 4.9.0 development compiler under various C/C++ benchmarks.
30 December 2013 - 12 Comments

Linux 3.13 Kernel HDD File-System Benchmarks

The Christmas benchmarks we have to share on Phoronix today are of testing the XFS, Btrfs, and EXT4 file-systems on the Linux 3.13 development kernel compared to Linux 3.12 from a high-performance hard drive. Earlier this month results were shared on Phoronix that indicated file-systems on a solid-state drive slowing down with this new Linux kernel, but is that also the case for HDDs?
25 December 2013 - 4 Comments

GCC 4.9 Compiler Benchmarks On A Dual-Core Haswell

While extensive benchmarks of the GCC 4.9 development compiler are currently ongoing, here's a preview of the performance that the GNU Compiler Collection is set to offer in 2014 with its next major update. For this article an Intel Pentium "Haswell" dual-core processor was tested on a GCC 4.9 development snapshot and compared to GCC 4.8.2 and GCC 4.7.3 in a wide variety of C/C++ workloads. New LLVM Clang 3.4 benchmarks are also happening.
24 December 2013 - 1 Comment

LLVM Clang 3.4 Compiler Performance Is Doing Good

The release of LLVM 3.4 is imminent and with the major compiler infrastructure upgrade comes update to the Clang C/C++ compiler front-end, LLDB debugger, and other LLVM sub-projects. LLVM 3.4 is a very righteous release and in celebration of its forthcoming release, it's back into compiler benchmarking season at Phoronix.
21 December 2013 - 18 Comments

File-Systems Appear To Slowdown On Linux 3.13 Kernel

Our initial file-system testing of EXT4, XFS, Btrfs, and F2FS from the Linux 3.13 kernel appear to reveal that the performance overall is slower than when using the Linux 3.12 kernel on the same software/hardware configuration.
10 December 2013 - 9 Comments

Linux 3.9 Through Early Linux 3.13 Kernel Benchmarks

While I'm waiting for development activity on the Linux 3.13 kernel to settle down a bit more before delivering comprehensive benchmarks looking at the Linux 3.13 kernel performance changes across the various covered subsystems, up this morning are some early benchmarks of the Linux 3.13 Git kernel and benchmarking every major release going back to Linux 3.9.
3 December 2013 - 2 Comments

Oibaf Keeps Making Ubuntu GPU Driver Upgrades Easy

For those that may have some time this holiday weekend and are looking to better enhance the performance of Ubuntu's open-source graphics drivers, one of the easiest ways to do so is by enabling the Oibaf repository for easily downloading and installing newer versions of the Mesa/Gallium3D drivers and other X.Org related components. Here are some more details and current benchmarks of enabling the Oibaf PPA over Ubuntu 13.10.
30 November 2013 - 8 Comments

13-Way NVIDIA VDPAU Video Decode Benchmarks

It's been a while since last putting out any hardware-accelerated video decode benchmarks of NVIDIA's Video Decode and Presentation API for Unix (VDPAU). However, after updating qVDPAUtest to support building on modern platforms, here's a round of thirteen NVIDIA GeForce graphics cards being benchmarked under VDPAU.
26 November 2013 - 9 Comments

447 software articles published on Phoronix.
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