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Software

XWayland Linux Gaming Performance With GNOME Wayland On Fedora 21

With this week's Fedora 21 Alpha release delivering the very latest open-source Linux graphics driver code, the newest Wayland code, and the updated GNOME 3.14 desktop with its day-to-day support for Wayland, I've been busy benchmarking.
25 September 2014 - 23 Comments

EXT4/Btrfs/XFS/F2FS Benchmarks On Linux 3.17

With the Linux 3.17 kernel due out soon, here's our routine file-system benchmarks we do each kernel cycle to see how the popular Linux file-systems have evolved between kernel releases.
24 September 2014 - 27 Comments

Intel P-State vs. CPUFreq Benchmarks On The i7-5960X

Continuing in our recent CPUFreq vs. P-State scaling driver benchmarks, here's some tests from the eight-core Core i7 5960X Haswell-E system as we test the two CPU frequency scaling drivers and their different governors.
18 September 2014 - 11 Comments

RadeonSI GLAMOR Benchmarks With X.Org Server 1.16

With X.Org Server 1.16 having landed in Ubuntu 14.10, it's time for some benchmarks comparing the 1.15 and 1.16 releases on Ubuntu while using the GLAMOR 2D acceleration library.
17 September 2014 - 11 Comments

9-Way File-System Comparison With A SSD On The Linux 3.17 Kernel

Sunday benchmarks this week on Phoronix are comparing nine popular, mainline file-systems present within the Linux 3.17 kernel. All the usual contenders are present and the benchmarks happened with a solid-state disk.
7 September 2014 - 14 Comments

More Linux Benchmarks Of The AMD FX-8370E / FX-8370 / FX-9590

In adding some extra tests besides what was shared in our large Linux review of the new AMD FX CPUs from earlier in the week, that included a fairly big comparison of Intel and AMD CPUs, here's some more Linux test results for just the FX-8370E, FX-8370, and FX-9590 processors.
4 September 2014 - 12 Comments

GCC 5.0 Outruns LLVM 3.5 Compiler By A Bit On Core-AVX2

In anticipation of the LLVM 3.5 release that brings a number of new compiler features -- including possible performance improvements from our benchmarking done earlier today -- here's some benchmarks comparing LLVM Clang 3.5 RC3 to a recent SVN snapshot of the GCC 5.0 compiler that's presently under development.
3 September 2014 - 10 Comments

LLVM Clang 3.5 Brings Some Compiler Performance Improvements

If all goes well, LLVM 3.5 will be released today. While we have already delivered some LLVM/Clang benchmarks of the 3.5 SVN code, over the days ahead we will be delivering more benchmarks of the updated compiler stack -- including looking at its performance against the in-development GCC 5.0. For getting this latest series of compiler benchmarking at Phoronix started, here's some fresh numbers of LLVM Clang 3.4 compared to a recent release candidate of LLVM Clang 3.5.
3 September 2014 - 1 Comment

Testing For The Latest Linux Kernel Power Regression

As I wrote about yesterday, there appears to be a new Linux kernel power regression that's yet to be solved by the latest Linux 3.17 code. The issue was originally tracked down to being a regression introduced during the Linux 3.15 stable cycle that disabled frame-buffer compression support by default for the Intel DRM graphics driver, but the impact it's had on the system power draw is much greater than what was anticipated by the Intel developers. A separate Intel employee is also reporting increased power draw, so I decided to run some tests on a few local systems to see what I'm encountering in the power consumption primarily between Linux 3.15 and 3.16.
29 August 2014 - 11 Comments

CPUFreq Scaling Tests With AMD's Kaveri On Linux 3.16

In past months on Phoronix we have done many CPUfreq tests to see the impact of the different scaling governors and with Intel hardware how the CPUfreq driver compares to Intel P-State in terms of performance and power consumption. As we haven't done such ACPI CPUfreq tests on the AMD side in a long time, here's some benchmarks using a Kaveri APU and selecting the different scaling governors during performance benchmarking.
15 August 2014 - 8 Comments

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