Software Archives
Linux 3.5 To Linux 4.5-rc1 Kernel Benchmarks

Last week I carried out tests of the Linux 3.5 through Linux 4.4 kernels. Those benchmarks were fairly interesting in looking at the evolution of the Linux kernel performance over the past three and a half years. With Linux 4.5-rc1 now out, here are benchmarks with this latest kernel version that's currently under development.

25 January 2016 - 4 Comments
The Many New Features & Improvements Of The Linux 4.5 Kernel

With Linux 4.5-rc1 expected for release today that will mark the end of this cycle's merge window, here is a look at the new features and improved functionality present for this major Linux kernel release that will then be officially christened in about two months time.

24 January 2016 - 14 Comments
Linux 3.5 Through Linux 4.4 Kernel Benchmarks: A 19-Way Kernel Showdown Shows Some Regressions

What better way to spend a cold Friday morning than looking at some kernel benchmarks, so up for your viewing pleasure today are benchmarks of every kernel major release going from the Linux 3.5 kernel up through the latest Linux 4.4 stable kernel release. All the tests were done on the same system and there are actually some interesting performance changes to note with these Linux kernel tests going back to the summer of 2012.

22 January 2016 - 19 Comments
KDE Plasma 5.5 Has Evolved Well Beyond Where Plasma 4 Ended

Ken Vermette has written a lengthy article for us about his thoughts on the state of the KDE Plasma 5 desktop as of the recent 5.5 release. If you are curious how KDE Plasma 5 is panning out, how it works on Wayland, and much more, this article is a definite must-read.

8 January 2016 - 75 Comments
GCC 5.2 Compiler Benchmarks With ARM Cortex-A57 A Mixed Bag

Following Monday's NVIDIA Jetson TX1 performance overview one of the first follow-up tests I wanted to carry out was to see how the performance would evolve if using a newer compiler than what's shipped in Ubuntu 14.04. This current long-term support release ships GCC 4.8 while out since then was GCC 4.9 and now GCC 5.2.1 with GCC 6 coming in just a few months.

18 November 2015 - 6 Comments
Phoronix Test Suite 6.0 Delivers New Result/Phoromatic UI, New Modules

After a half-year of development, I'm ecstatic to announce this morning the release of Phoronix Test Suite 6.0 (codenamed "Hammerfest"). Phoronix Test Suite 6.0 is by far the most significant release ever done of our open-source, cross-platform automated benchmarking software and framework since the release of Phoronix Test Suite 1.0 seven years ago.

17 November 2015 - 10 Comments
A Look At The New Features Of The Linux 4.4 Kernel

If all goes according to plan, the Linux 4.4 kernel merge window will end today with the release of the 4.4-rc1 kernel. As all of the major subsystem updates have already landed for Linux 4.4, here's my usual look at the highlights for this kernel cycle.

15 November 2015 - 10 Comments
PHP 7.0 vs. HHVM 3.10 Performance Tests

With PHP 7.0 RC7 being the final development version of PHP 7, which is expected to be officially release at the end of the month, I've carried out some fresh benchmarks of PHP using our in-house benchmarking software. Compared in this latest PHP 7 benchmarking comparison is PHP 5.5 as packaged on Ubuntu 14.04 LTS and then comparing fresh builds of PHP 5.6.15 and PHP 7.0.0 RC7. On the HHVM side was using Facebook's HHVM 3.10.1 release as packaged for Ubuntu 14.04 LTS.

14 November 2015 - 6 Comments
Linux 4.3 File-System Comparison With Btrfs, EXT4, XFS, F2FS

Last week I posted some fresh Linux file-system tests on a hard drive but for those preferring solid-state drives, here are some fresh benchmarks. Tested for this comparison were Btrfs, EXT4, XFS, and F2FS from an SSD while running with the Linux 4.1, 4.2, and 4.3 kernel releases.

3 November 2015 - 26 Comments
Intel Skylake Performing Better With CPUFreq Than P-State For Linux Gaming

While the latest Linux kernel has Intel P-State driver support for CPU frequency scaling being done by this Intel-specific driver rather than the common ACPI CPUFreq driver, for some common tests -- especially Linux gaming -- the latest-generation Intel CPUs perform noticeably better using the CPUFreq driver. Here are some CPUFreq vs. P-State drivers when testing the available scaling governors.

16 October 2015 - 17 Comments
Using Linux's Perf For Providing More Automated Performance Counter Metrics

A Phoronix reader recently asked about adding perf profiling to PTS for helping to better identify performance problems within the Linux kernel. As it was easy to do and further shows how easy and extensible the Phoronix Test Suite can be, I added such a module today. Here's some more details on how -- whenever running any benchmark -- via the Phoronix Test Suite you can very trivially expose all of the performance event counts on a universal per-test basis.

13 October 2015 - 6 Comments
PHP 7.0 Is Showing Very Promising Performance Over PHP 5, Closing Gap With HHVM

With PHP 7.0 RC2 having just been released, I've been testing it out thoroughly across a range of Linux systems at Phoronix. To the say the least, the performance claims made by PHP developers about the upcoming PHP7 release are very accurate: it's pretty darn fast and about twice as fast as PHP 5.6. Here are some benchmarks I did on Ubuntu Linux x86_64 comparing the performance of PHP 7.0 RC2 to PHP 5.3/5.4/5.5/5.6, along with some HHVM results tossed in at the end.

5 September 2015 - 10 Comments
Clang OpenMP Benchmarks On Linux 64-bit Against GCC

A few days ago I posted some LLVM Clang 3.7 vs. GCC compiler benchmarks on Linux in time for the release of LLVM 3.7. While LLVM/Clang 3.7 brings full support for OpenMP 3.1, OMP tests were omitted from the original article due to running into some issues. In this article are some reference tests for Clang OpenMP performance with the latest mainline SVN code compared to GCC.

3 September 2015 - 10 Comments
Intel P-State / CPUFreq CPU Scaling For Linux Gaming On Ubuntu 15.04

It's been a while since last running any Intel P-State / CPUfreq scaling governor benchmarks on Phoronix. With a premium subscriber expressing interest in seeing a fresh comparison, here are some new numbers when running an Intel Core i7 Haswell CPU with NVIDIA GeForce graphics on Ubuntu 15.04 with the Linux 3.19 kernel and testing the different scaling drivers and governors.

15 August 2015 - 10 Comments
Khronos Debuts OpenGL ES 3.2 & New GL Extensions, But No Vulkan This Week

It's SIGGRAPH week! Our embargo was just lifted by The Khronos Group for talking about their exciting specification updates and more that they'll be sharing with the attendees at this annual, leading graphics conference in Los Angeles. In this article are the details on the new OpenGL ES 3.2 specification, new desktop OpenGL extensions, the Safety Critical Working Group, and some talk about SPIR-V/Vulkan but the new graphics API specification itself isn't being released from SIGGRAPH.

10 August 2015 - 57 Comments
Running CrossOver 14 Linux For An Easier Wine Experience

For a large portion of Linux and Mac users the reality is there will be some Windows program that they will still have to use on a daily or near-daily basis. For many the answer is Wine, letting them use their applications with a variable amount of success on their new *nix system. Unfortunately Wine doesn't come with any guarantee of support for a given application, nor is there any level of support from the developers beyond the community, or a generous developer. Enter CrossOver.

8 August 2015 - 13 Comments
8-Way Linux Desktop OpenGL Comparison Atop Fedora 22

Beyond last week's Debian GNU/Hurd vs. GNU/Linux comparison, another set of updated benchmarks sought by some Phoronix Premium members have been a fresh cross-desktop environment comparison when running various games / OpenGL benchmarks across desktops / window managers.

3 August 2015 - 24 Comments
Here Is Why The Linux 4.2 Kernel Is Messing Up On Some Ubuntu Systems

The Linux 4.2 kernel that's currently under development ships many new features, but as I've been writing about for a while and tweeting, the 4.2 Git code hasn't been booting on many systems in my test lab for over one week. Various Phoronix readers have also been able to reproduce these different kernel panics that happen almost immediately into the boot process. Here's the root problem affecting Linux 4.2 on my daily Linux benchmarking systems...

13 July 2015 - 15 Comments

499 software articles published on Phoronix.