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Software

10-Way Linux File-System Comparison On Linux 3.10

On the latest Linux 3.10 stable kernel we have taken ten common Linux file-systems and generated an interesting performance comparisons. The Linux file-systems being tested in this article include XFS, Btrfs, EXT2, EXT3, EXT4, ReiserFS, Reiser4, JFS, F2FS, and ZFS.
8 August 2013 - 20 Comments

Reiser4 File-System Shows Decent Performance On Linux 3.10

With quite some time having passed since we last benchmarked the Reiser4 file-system, to end out July we have some fresh benchmarks of Reiser4 from the newly released patches for the Linux 3.10 kernel. There's fairly good performance out of the experimental file-system when compared to the original ReiserFS as well as EXT4, Btrfs, and XFS.
31 July 2013 - 5 Comments

LLVM Clang 3.4 SVN Compiler Optimization Level Tests

To complement the LLVM 3.4 SVN compiler benchmarks from yesterday that were looking at the impact of using the SLP Vectorizer that's soon to be enabled by default for some optimization levels, here are some more LLVM Clang compiler development benchmarks. This time around are fresh benchmarks of the open-source C/C++ compiler when trying out the different compiler optimization levels, including -O0, -O1, -O2, -Os, -O3, and -Ofast.
30 July 2013 - 1 Comment

Btrfs Mount Option Performance Tuning On Linux 3.11

To complement the EXT4, XFS, Btrfs, and F2FS benchmark results that were published yesterday from the Linux 3.11 kernel and its predecessors, here are some Btrfs tuning benchmarks on the Linux 3.11 kernel with various performance-sensitive Btrfs mount options being tried.
21 July 2013 - 10 Comments

Linux 3.11 File-System Performance: EXT4, Btrfs, XFS, F2FS

Coming out today are our first Linux 3.11 kernel file-system benchmarks. Being benchmarked from a higher-end OCZ Vertex 3 SATA 3.0 SSD connected to an Intel Core i7 "Haswell" system are the EXT4, Btrfs, XFS, and F2FS file-systems.
20 July 2013 - 5 Comments

GCC vs. LLVM/Clang On The AMD Richland APU

Along with benchmarking the AMD A10-6800K "Richland" APU on Linux and its Radeon HD 8670D graphics, I provided some GCC compiler tuning benchmarks for this AMD APU with Piledriver cores. The latest Linux testing from the A10-6800K is a comparison of GCC 4.8.1 to LLVM/Clang 3.3 on this latest-generation AMD low-power system.
6 July 2013 - 13 Comments

Unity On XMir Performance For Nouveau Gallium3D

On Friday I delivered the first benchmarks of Ubuntu's Unity desktop running on XMir -- the X.Org Server compatibility layer for talking to the Mir Display Server. Those benchmarks showered there was noticeable performance overhead to running XMir with Intel's graphics driver. Later benchmarks showed XMir 2D performance was also negatively affected. In this article are benchmarks looking at the XMir performance with the Nouveau driver.
30 June 2013 - 4 Comments

2D Performance Also Impacted By Unity On XMir

Earlier today I delivered the first benchmarks of Ubuntu's Unity 7 running over XMir to run the current X11 desktop atop the Mir Display Server via this compatibility layer. These benchmarks documented the performance impact of running OpenGL games when having to deal with XMir rather than just a clean X.Org Server running on the hardware. The extra step in the rendering process did result in a measurable performance impact, especially when the performance of the open-source Linux graphics drivers is already lower than their proprietary brethren. The benchmarks to now show illustrate that the 2D rendering performance also takes a hit when running Unity on XMir.
29 June 2013 - 32 Comments

LLVM Clang 3.4 Already Has Some Performance Changes

While LLVM 3.3 was released last week, there are already some performance changes for the latest LLVM 3.4 and Clang 3.4 SVN development code for this C/C++ compiler stack.
27 June 2013 - 3 Comments

GCC 4.8 vs. LLVM/Clang 3.3 On Intel's Core i7 4770K

Complementing the earlier Phoronix article about optimized binaries for Intel Haswell CPUs via the -march=core-av2 Haswell compiler optimizations, in this article is a comparison of the GCC and LLVM/Clang compilers when targeting the new Core i7 4770K CPU. GCC 4.7.3, GCC 4.8.1, LLVM Clang 3.2, and LLVM Clang 3.3 were the tested compilers under Ubuntu Linux when seeing how well these different compilers optimized for Haswell.
21 June 2013 - 14 Comments

440 software articles published on Phoronix.
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