Last weekend I mentioned that Wayland for MeeGo Tablet UX would be discussed and showed off at the 2011 MeeGo Conference that took place this week in San Francisco. Two sessions on the topic of Wayland took place, including one by Kristian Høgsberg, Wayland's creator. In this article are the slides that Kristian presented along with a few notes. This also shows off the plans to adopt Wayland in as soon as MeeGo 1.3, which will be released this October.
27 May 2011 - 9 Comments
While we have already delivered a number of benchmarks from the Linux 2.6.39 kernel, surprisingly we have not yet published any new file-system benchmarks from this latest stable Linux kernel release. Fortunately, that has changed today with a fresh round of Btrfs, EXT4, and XFS file-system benchmarks on the Linux 2.6.39 kernel and compared to the preceding 2.6.38 and 2.6.37 kernel releases.
26 May 2011 - 9 Comments
As mentioned earlier on Phoronix, LinuxTag 2011 took place this past weekend in Berlin. One of the few talks I was able to make due to the Ubuntu Developer Summit in Budapest colliding with the event was the Wayland talk by SUSE's Egbert Eich. The focus of this talk was whether Wayland is on the way to becoming a new desktop standard.
17 May 2011 - 44 Comments
With the recent look at the major Linux power regressions taking place within the Linux kernel, some initially wondered if the increase in power consumption was correlated to an increase in system performance. Unfortunately, it is clear now that is not the case. With that said though, here's some performance benchmarks of all major kernel releases going back to Linux 2.6.24 and ending with the Linux 2.6.39 kernel.
9 May 2011 - 11 Comments
Recently there were benchmarks on Phoronix looking at the Ubuntu 11.04 boot performance relative to past Ubuntu Linux releases. This was done with five mobile systems and going back as far as Ubuntu 8.04. The tests showed around Ubuntu 10.04 LTS was where the boot performance in Ubuntu's been the best but Ubuntu 10.10 and 11.04 have slowed down a bit in how fast it's reaching the desktop. In this article we are looking at the boot performance when simply changing out the kernels. Every kernel from Linux 2.6.24 to 2.6.39-rc4 was analyzed.
2 May 2011 - 34 Comments
Matthew Tippett and I presented at the 2011 Linux Foundation Collaboration Summit today in San Francisco about benchmarking and continuous testing of LLVM and the sub-projects that depend upon this compiler infrastructure. As the slides are somewhat generic and can be applied to many other open-source projects, the slides are now available. It's basically how to leverage the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org for driving continuous benchmarking to monitor performance regressions.
7 April 2011 - 1 Comment
Version 4.6 of GCC was released over the weekend with a multitude of improvements and version 2.9 of the Low-Level Virtual Machine is due out in early April with its share of improvements. How though do these two leading open-source compilers compare? In this article we are providing benchmarks of GCC 4.5.2, GCC 4.6.0, DragonEgg with LLVM 2.9, and Clang with LLVM 2.9 across five distinct AMD / Intel systems to see how the compiler performance compares.
28 March 2011 - 10 Comments
Version 2.9 of the Low-Level Virtual Machine is set to be released in a little more than a week, but what will it mean much for users in terms of performance? We will be looking at the LLVM 2.9 and Clang performance in the coming days (along with GCC 4.6, which was just released). We are beginning this weekend by providing a look at how using LLVM 2.9 affects the performance of the Mesa Gallium3D LLVMpipe driver relative to the previous LLVM 2.6, 2.7, and 2.8 releases.
26 March 2011 - 4 Comments
While the performance of the Btrfs file-system with its default mount options didn't change much with the just-released Linux 2.6.38 kernel as shown by our large HDD and SSD file-system comparison, this new kernel does bring LZO file-system compression support to Btrfs. This Oracle-sponsored file-system has supported Gzip compression for months as a means to boost performance and preserve disk space, but now there's support for using LZO compression. In this article we are looking at the Btrfs performance with its default options and then when using the transparent Zlib and LZO compression.
18 March 2011 - 20 Comments
There have been a flurry of comments this week following my post why software defaults are important and why in the Linux benchmarks at Phoronix.com the tests are most often carried out in their default/stock configurations: it's what most everyone uses. There have been comments by Ted Ts'o on file-system default mount options and whether they are sane or not in the non-enterprise distributions and others have questioned if defaults like Compiz on in Ubuntu by default makes sense. Does using Compiz still hurt your graphics performance?
10 March 2011 - 41 Comments
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