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Phoronix Test Suite

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Software

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

KVM Benchmarks On Ubuntu 14.10

For those wondering about the modern performance cost of using KVM on Ubuntu Linux for virtualizing a guest OS, here are some simple benchmarks comparing Ubuntu 14.10 in its current development stage with the Linux 3.16 versus running the same software stack while virtualized with KVM and using virt-manager.
22 July 2014 - 9 Comments

X.Org Server 1.16 Officially Released With Terrific Features

After a last minute delay earlier this month, Keith Packard of Intel's Open-Source Technology Center has officially announced the X.Org Server 1.16 release. XWayland and other changes make xorg-server 1.16 a super exciting release!
17 July 2014 - 20 Comments

Testing Btrfs On The Linux 3.16 Kernel

When running my initial Linux 3.16 file-system tests on an SSD I had to skip over Btrfs due to initial problems with the experimental kernel code. Fortunately, Btrfs has been fixed-up in Linux 3.16 and can now serve for some benchmarking.
3 July 2014 - 11 Comments

Benchmarking Linux 3.16 File-Systems On An SSD

With the Linux 3.16 kernel coming along nicely, here's our first tests of this forthcoming major kernel upgrade when it comes to the mainline file-systems and their performance from a solid-state drive.
29 June 2014 - 10 Comments

Testing LLVM Clang 3.5's Code Generation Optimizations

For those curious about the performance of LLVM Clang in its current development form when testing the common code generation options for optimizing the performance (and in some cases size) of the resulting binaries, here's some fresh compiler benchmarks.
28 June 2014 - 3 Comments

455 software articles published on Phoronix.
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