Language Selection

English French German Italian Portuguese Spanish

Linux 2.6.38 Kernel Multi-Core Scaling

Filed under
Linux

Last month there were benchmarks on Phoronix looking at the multi-core scaling performance of multiple operating systems, including CentOS 5.5, Fedora 14, FreeBSD 8.1, and OpenIndiana b148. CentOS 5.5 uses the long-term Linux 2.6.18 kernel while Fedora 14 has the more recent Linux 2.6.35 kernel by default, but a number of users asked how the Linux 2.6.38 kernel would fair for multi-core scaling with the removal of the Big Kernel Lock and various other low-level improvements in this forthcoming kernel. Here are some benchmarks showing just that.

While the Linux 2.6.38 kernel does have a lot of interesting changes from the low-level improvements to hardware driver enhancements and file-system improvements, at least with the same workload used last month to illustrate the multi-core multi-OS scaling, there really isn't any difference with this newest Linux kernel code that was fetched last week. Fortunately, at least, there are no regressions.

Last month's results showed a few problems with FreeBSD and OpenIndiana in terms of its scaling performance and also some shortcomings of Intel's Hyper Threading Technology, but when strictly comparing the Linux 2.6.32 and Linux 2.6.38 kernels, there really isn't anything different to see.

rest here




More in Tux Machines

Simplenote want developers to make a GNU/Linux implementation

Matt Mullenweg founder and CEO of Automattic which is responsible for WordPress.com has reached out to people who develop software on the GNU/Linux platform to find someone who will bring the Simplenote application to GNU/Linux. Read more

How to set up Raspberry Pi, the little computer you can cook into DIY tech projects

You don't need an electrical engineering degree to build a robot army. With the $35 Raspberry Pi B+, you can create robots and connected devices on the cheap, with little more than an Internet connection and a bunch of spare time. The Raspberry Pi is a computer about the size of a credit card. The darling of the do-it-yourself electronics crowd, the Pi was originally designed to teach kids computer and programming skills without the need for expensive computer labs. People have used Raspberry Pis for everything from robots to cheap home media centers. The Pi sports USB ports, HDMI video, and a host of other peripherals. The latest version, the B+, sports 512MB of RAM and uses a MicroSD card instead of a full-size card. Read more

LibreOffice Ported To 64-bit ARM (AArch64)

As more and more open-source programs get brought up for 64-bit ARM, LibreOffice is the latest to receive such AArch64 enablement. As of today in LibreOffice Git is the initial AArch64 support. Over one thousand new lines of code were added to LibreOffice by Red Hat's Stephan Bergmann for allowing the open-source office suite to build on the ARMv8 64-bit architecture. LibreOffice already runs on many CPU architectures from x86 to Alpha and SPARC with ARM64 just being the latest. Read more

SUSE's Flavio Castelli on Docker's Rise Among Linux Distros

Docker has only gained traction since its launch a little over a year ago as more companies join the community's efforts on a regular basis. On July 30, the first official Docker build for openSUSE was released, making this distribution the latest among many to join the fray. I connected with Flavio Castelli, a senior software engineer at SUSE, who works extensively on SUSE Linux Enterprise and has played a major role in bringing official Docker support to openSUSE. In this interview, he discuses the importance of bringing Docker to each Linux distribution, the future of Docker on SUSE Linux Enterprise, and other interesting developments in the Docker ecosystem. Read more