Earlier this week we published extensive benchmarks of EXT4 that looked at the performance of this Linux file-system under every major kernel release since it was declared stable in the Linux 2.6.28 release. EXT4 has encountered many significant performance losses over time as its developers batten up the data security, but there have been some improvements too. At the same time though the developers working on the still-experimental Btrfs file-system continue to move along and push forward changes with each kernel cycle. Just last month we delivered Btrfs comparative benchmarks using the Linux 2.6.32 kernel, but already out of our own personal interest and requests from readers, we have new tests atop the latest Linux 2.6.33 kernel.
21 January 2010 - 29 Comments
Over the past week there has been a lot of talk about the EXT4 file-system following the announcement that Google is migrating their EXT2 file-systems to EXT4. Their reasons for this transition to EXT4 are attributed to the easy migration process and Google engineers are pleased with this file-system's performance. However, as we mentioned in that news post last week and in many other articles over the past weeks and months, EXT4 is not as great of a contender as it was in the past, well, for some tests at least. The performance of the EXT4 file-system commonly goes down with new kernel releases and not up, as kernel developers continue to introduce new safeguards to address potential data loss problems that initially plagued some EXT4 users. For our latest EXT4 benchmarks we have numbers that show this file-system's performance using a vanilla 2.6.28 kernel (when EXT4 was marked as stable) and then every major kernel release up through the latest Linux 2.6.33 release candidate.
19 January 2010 - 42 Comments
For those that may have forgot, at the start of December we launched the Phoronix Kernel Test Farm to begin benchmarking the Linux kernel on a daily basis using the automated tools that we provide via the Phoronix Test Suite and Phoromatic. Towards the middle of December we then unveiled the Phoromatic Tracker, which exposes these test results in real-time to the public. Well, it's now been a month of monitoring the kernel's performance and the entire Linux 2.6.33 kernel development cycle thus far, with many interesting findings.
2 January 2010 - 9 Comments
With 2009 having come to an end, here are the twelve most popular articles and news stories that were published on Phoronix in 2009. Over 230 original articles and 880 news stories were published on Phoronix.com in 2009.
1 January 2010 - 2 Comments
Last month Phoromatic went into public beta, which is our remote test management software for the Phoronix Test Suite that allows a wealth of possibilities including the ability to easily build a benchmarking test farm. At the start of this month, we in fact announced that the Phoronix Kernel Test Farm went live and it would be benchmarking the latest mainline Linux kernel on a daily basis. This was followed by the addition of a system in our test farm to benchmark the latest Fedora Rawhide packages on a daily basis. We had not intended to begin pushing out these results publicly through a new web-site until next year, but we have already collected some interesting metrics that are documenting active regressions within the Linux 2.6.33 kernel. As a result, this morning we are rolling out Phoromatic Tracker, the public interface to our test farm.
16 December 2009 - 10 Comments
We have published articles containing EXT4 benchmarks many times now going back to our original real world benchmarks of EXT4 to when Ubuntu 9.04 received EXT4 support and when we ran a variety of file-system benchmarks on an Intel X25-E SSD. We had also thrown in EXT4 numbers when benchmarking Btrfs (and again with Btrfs 0.19) along with NILFS2 benchmarks. Each time has been with a different kernel and the performance of the different Linux file-systems continue to change as each file-system matures and picks up different features. Though with the Linux 2.6.32 kernel the EXT4 performance had changed a great deal due to a change that provides better data integrity on writes but at a significant performance cost. To see how this changes the Linux file-system landscape, atop the latest Linux kernel we have a fresh set of benchmarks for EXT3, EXT4, XFS, ReiserFS, and Btrfs.
14 December 2009 - 67 Comments
Only two weeks have passed since the launch of Phoronix Test Suite 2.2, but it is already time to push out the first alpha release for Phoronix Test Suite 2.4! Phoronix Test Suite 2.4 (codenamed "Lenvik") Alpha 1 is what is running on our kernel test farm that launched yesterday and there is already a great deal of changes to be found in this release. In fact, the patch already between 2.2 Bardu and 2.4 Lenvik Alpha 1 is nearly 24,000 lines of code! There is some code reorganization, but a lot of new code has been introduced. Here is some of what can be found already in this development release.
2 December 2009 - 5 Comments
This year with the Phoronix Test Suite we have delivered four major updates to this leading, widely adopted, multi-platform testing software that has brought dozens of new test profiles and literally hundreds of significant changes. These changes ranged from features to autonomously track performance regressions within any code-base, the ability to not only compare frame-rates within OpenGL tests but image quality comparisons too, support for mobile platforms, and so much other major work to further drive automated testing and benchmarking not only on Linux but OpenSolaris, *BSD, and Mac OS X too. In 2009 we also launched PTS Desktop Live, our own operating system for carrying out standardized benchmarks in an easy-to-use and repeatable manner from a live Linux environment, and also Phoromatic, which is designed for the enterprise world and allows the Phoronix Test Suite to be easily deployed across many systems and then managed from a central interface. The year is not over yet, nor is our work on ensuring that the Phoronix Test Suite is the most powerful and robust testing/benchmarking platform. With that said, as of this morning our Phoronix kernel test farm is now alive!
1 December 2009 - 9 Comments
With the Linux 2.6.32 kernel being released in a few days, we found it time to benchmark this newest kernel release that brings new drivers, kernel mode-setting improvements, virtualization enhancements, and more.
27 November 2009 - 20 Comments
Yesterday marked the release of Phoronix Test Suite 2.2 and it was the best version yet with the addition of many new exciting and useful features. While this release was gratifying, there are much greater plans for the Phoronix Test Suite going into the next decade. It has already been shared that Windows support is coming, but there are other huge features coming too as soon as Q1'2010. Up to this point, most of the tests and the design of pts-core (the Phoronix Test Suite engine) have been focused on quantitative benchmarks with many of the tests spitting out a frame-rate, time, or some other measurement. However, now being supported in the Phoronix Test Suite is the ability to produce abstract results, such as screenshots used for image quality comparisons. The Phoronix Test Suite can now track the image quality of various test profiles (such as OpenGL games) across hardware configurations, drivers, and more. All of this is still leveraged upon the existing Phoronix Test Suite framework and our design philosophies so that even image quality comparisons can be carried out autonomously, the ability to compare many results side-by-side, support for carrying out these tests remotely via Phoromatic, and the ability to share your abstract results with others via Phoronix Global. Now not only can you be sure you are satisfied with the quantitative frame-rate of the hardware you have -- or are about to purchase -- but you have a plethora of options for looking at the qualitative performance too.
17 November 2009 - 3 Comments
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