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Phoronix Test Suite

OpenBenchmarking.org

Software

LLVM 3.3 To Introduce SLP Vectorizer

One of the prominent features to be introduced with the LLVM 3.3 release this summer is the SLP Vectorizer. Introduced in the LLVM 3.2 release was the LLVM Loop Vectorizer for vectorizing loops while the new SLP Vectorizer is about optimizing straight-line code by merging multiple scalars into vectors.
7 May 2013 - 9 Comments

GCC vs. LLVM/Clang On AMD's FX-8350 Vishera

Most often when delivering new compiler benchmarks on Phoronix whether it be for GCC, LLVM/Clang, or an alternative Linux code compiler, the testing is most commonly done with Intel hardware. The Intel compiler testing is done since Intel CPUs are predominantly used in the developer world and we happen to have a lot more Intel hardware samples around than AMD CPUs. However, for those curious how the LLVM/Clang 3.3 performance is stacking up, here are some GCC and LLVM/Clang benchmarks from an AMD FX-8350 "Vishera" system running Ubuntu 13.04 Linux.
27 April 2013 - 12 Comments

LLVM/Clang 3.3 Performing Against GCC For Old Intel CPU

Generally when delivering new Linux compiler benchmarks on Phoronix it's from x86/ARM hardware within the past two years. It's the most recent generations of hardware that excites us the most and generally where the professional Linux software developers are focusing their time and resources. However, after seeing the recent LLVM/Clang 3.3 performance improvements for this forthcoming open-source compiler release, we decided to go back a bit in CPU history.
23 April 2013 - 5 Comments

LLVM/Clang 3.3 Delivers Speed Improvements

Last month I delivered benchmarks showing LLVM/Clang 3.3 offers performance improvements and then LLVM/Clang 3.3 is very competitive to GCC 4.8. For further confirming this information, LLVM/Clang 3.3 SVN development benchmarks were carried out from an entirely different system to confirm the earlier findings. LLVM/Clang 3.3 is indeed much faster over its predecessor in a wide variety of Linux benchmarks.
19 April 2013 - 4 Comments

Liquorix 3.8 Kernel Has Some Performance Wins Over Linux

The Liquorix kernel is a modified version of the Linux kernel with out-of-tree patches and a kernel configuration that is highly-optimized for desktop, multimedia, and gaming workloads. It's been one year since last benchmarking the Liquorix kernel against a vanilla Linux kernel, but now we have some benchmarks of the Liquorix 3.8 kernel compared to the latest stable Linux kernel.
15 April 2013 - 24 Comments

LLVM/Clang 3.3 Very Competitive To GCC 4.8

Benchmarks for sharing this weekend are looking at the performance of GCC 4.7, GCC 4.8, LLVM/Clang 3.2, and the latest LLVM/Clang 3.3 development code. How does the performance of the newly released GCC 4.8.0 compare to the yet-to-be-released LLVM/Clang 3.3? It's interesting.
7 April 2013 - 7 Comments

Why Wayland & Weston Were Forked

Last week, Wayland/Weston was forked by a long-time contributor, Scott Moreau. The fork of the Wayland/Weston display server ended up becoming known as Northfield/Norwood, following disagreements within the Wayland development camp. Scott Moreau was ultimately banned from the Wayland mailing list and IRC channel, so he's written an exclusive, independent article for Phoronix to explain his actions and why he felt a fork of the Wayland display server protocol and the reference Weston compositor were necessary.
29 March 2013 - 131 Comments

Fluendo Codec Pack 18 Supports GStreamer 1.0

Fluendo, the well-known company that backs the development of GStreamer and has also sponsored projects like PiTiVi and other open-source multimedia projects, has released Codec Pack 18. Special about Codec Pack 18 is that it's intended for use with GStreamer 1.0.
13 March 2013 - 17 Comments

F2FS Results Mixed Against Microsoft's exFAT On Linux

In the benchmarking that has happened since the release of the Linux 3.8 kernel, there's been many tests that occurred of Samsung's Flash-Friendly File-System (F2FS). With that testing has also come many requests to compare the performance of this file-system designed for flash storage devices to Microsoft's exFAT file-system as well as NTFS. In this article are those benchmark results.
6 March 2013 - 4 Comments

ARM Cortex-A15 Compiler Optimizations

The latest in our series of ARM Linux benchmarking is looking at the impact of GCC compiler optimizations on the ARM Cortex A15-based Samsung Exynos 5 Dual.
28 February 2013

446 software articles published on Phoronix.
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