In this article we will be looking at the impact of CONFIG_NO_HZ/Dynamic Ticks, which will be found in the Linux 2.6.21 kernel. The option has been available as a patch for quite a while, but not until Linux 2.6.21-rc1 had it been merged into the upstream kernel. When enabled, there will only be timer ticks when they are needed. The end-user benefit is cooler-running processors and increased power savings. We have investigated this change with a notebook and desktop computer.
24 February 2007 - 2 Comments
Over the weekend a blizzard has hit Michigan causing sub-zero temperatures, inches of snow, and zealous winds. This winter weather has caused the closing of shopping centers and community activities; public transportation systems and the Gerald R. Ford International Airport have also come to a halt. However, we took this opportunity to make the best of it with natural sub-zero overclocking. With the Abit AW9D i975X motherboard, an Intel Pentium 4 processor, 2GB of OCZ's Flex XLC PC2-9200 memory, and cooling provided by Mother Nature, we set off on a spontaneous overclocking adventure. Have you ever seen a motherboard in a snow-bank?
3 February 2007
For only being a release candidate the Linux 2.6.20 kernel has already generated quite a bit of attention. On top of adding asynchronous SCSI scanning, multi-threaded USB probing, and many driver updates, the Linux 2.6.20 kernel will include a full virtualization solution. Kernel-based Virtual Machine is a GPL software project that has been developed and sponsored by Qumranet. In this article we are offering a brief overview of the Kernel-based Virtual Machine for Linux as well as offering up in-house performance numbers as we compare KVM to other virtualization solutions such as QEMU Accelerator and Xen.
8 January 2007 - 7 Comments
While 64-bit support is now considered common for both Intel and AMD processors, many Linux (as well as Windows) users are uncertain whether to use a 32-bit or 64-bit operating system with there being advantages for both paths. With this being the last Phoronix article for 2006, we decided to take this opportunity to look at the common question of whether to use 32-bit or 64-bit software. In this article, we will be comparing the i386 and x86_64 performance with Ubuntu 6.10 Edgy Eft and Ubuntu 7.04 Feisty Fawn Herd 1 to see how the numbers truly stack up.
29 December 2006
On November 2, 2006 the embargo for Intel's Core 2 Extreme Quad QX6700 was lifted which resulted in a slurry of reviews covering this flagship desktop processor. However, this morning happens to be an important date for Supercomputing 2006 and it serves as yet another milestone for Intel Corporation. This morning Intel will be introducing the Xeon 5300 series, or perhaps better known by its codename of Clovertown. At Phoronix we have had these processors in-house for over a week now and today are able to share our thoughts on these quad-core server/workstation processors as we test them under GNU/Linux.
14 November 2006
Last month Intel had announced the Woodcrest Xeon 5100 series processors for use on servers and workstations, while just days ago, Intel finally officially launched their Core 2 Duo selection. Today at Phoronix we have taken a performance look at Intel's Xeon 5150 Woodcrest processor in both single and dual configurations as well as comparing its performance against the Intel Xeon 5000 Dempsey.
29 July 2006
A higher level of computing performance with lower clock speeds, and lower power consumption; is that too good to be true from our blue friends at Intel? With Intel proudly brazing their Core 2 products (namely the Conroe) on this late-night adventure, we have up our technical primer on this Pentium replacement.
14 July 2006
Intel's Core Duo T2400 has a maximum operating frequency of 1.83GHz, 65nm process, 2MB of L2 cache, and 667MHz FSB; however, how does this dual-core component fare under Linux? We have taken a look at the Intel Core Duo T2400 in conjunction with the Lenovo ThinkPad T60, and have comparison results today against the previous Pentium M 750 1.83GHz.
1 July 2006
Intel was first to adopt DDR2 memory when they had launched their LGA-775 socket nearly two years ago with the Grantsdale and Alderwood Chipsets. Intel Corporation is first again to introduce the latest in memory technology: FB-DIMM. FB-DIMM is short for Fully Buffered Dual Inline Memory Module, and is primarily designed for mission-critical server environments that require maximum performance with minimal errors. FB-DIMMs are designed to bring the best traits from DDR2 memory while combining a new point-to-point serial memory interface. Some of the key benefits for Fully Buffered DIMMs include enhanced reliability, greater bandwidth, improved scalability, and higher capacity per memory channel. We at Phoronix have the first performance preview of the new DDR2 FB-DIMM memory modules on the Xeon Greencreek platform.
16 June 2006
After having presented our preview of the AMD Socket AM2 last week, today we finally have our first set of numbers ready to publish. Our first Linux AM2 performance report comes in way of the AMD Sempron 3400+ and AMD Athlon 64 X2 4200+.
30 May 2006
Latest Linux Hardware Reviews
Latest Linux Articles
Latest Linux News
Latest Forum Discussions