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Processors

Intel Core i7 Virtualization On Linux

Earlier this month we published Intel Core i7 Linux benchmarks that looked at the overall desktop performance when running Ubuntu Linux. One area we had not looked at in the original article was the virtualization performance, but we are back today with Intel Core i7 920 Linux benchmarks when testing out the KVM hypervisor and Sun xVM VirtualBox. In this article we are providing a quick look at Intel's Nehalem virtualization performance on Linux.
22 April 2009 - 24 Comments

Intel Core i7 On Linux

Back in November Intel had formally launched the Core i7 series, but Linux benchmarks were not to be found. However, in the weeks that followed, results began to emerge through the Phoronix Test Suite and Phoronix Global. Over time there were many more Linux test results from the Phoronix Test Suite community, but now we have posted some of our own Intel Core i7 numbers from Ubuntu Linux.
7 April 2009 - 40 Comments

AMD Shanghai Opteron: Linux vs. OpenSolaris Benchmarks

In January we published a review of the AMD Shanghai Opteron CPUs on Linux when we looked at four of the Opteron 2384 models. The performance of these 45nm quad-core workstation/server processors were great when compared to the earlier AMD Barcelona processors on Ubuntu Linux, but how is their performance when running Sun's OpenSolaris operating system? Up for viewing today are dual AMD Shanghai benchmarks when running OpenSolaris 2008.11, Ubuntu 8.10, and a daily build of the forthcoming Ubuntu 9.04 release.
9 February 2009 - 106 Comments

AMD Shanghai Opteron CPUs On Linux

Last quarter AMD introduced their "Shanghai" Opteron processors that join the ranks of Intel's Harpertown Xeon CPUs that are 45nm quad-core server/workstation parts. Initial reviews of these new AMD Opteron processors have been very positive, but how do these chips perform with Linux? In this article we have our hands on a few of the fastest Shanghais, the AMD Opteron 2384 clocked at 2.7GHz, as we see how well they compare to the older "Barcelona" Opteron processors.
2 January 2009 - 23 Comments

Intel Atom On Ubuntu, Fedora, OpenSuSE, Mandriva

Back in September we looked at the Intel Atom performance on a few Linux distributions using the ASUS Eee PC 901, but now with new stable releases of some of the most popular distributions out in the wild, we've decided to re-conduct these tests. We are using a slightly different Atom-based system this time and we are comparing the performance on Ubuntu 8.10, Fedora 10, Mandriva 2008, and OpenSuSE 11.1.
14 December 2008 - 20 Comments

HD Video Playback With A $20 CPU & $30 GPU On Linux

A month ago NVIDIA had introduced the Video Decode and Presentation API for Unix (VDPAU) that brought PureVideo-like features to Linux. Our initial benchmarks of this video decoding API within NVIDIA's binary driver were quite favorable as it was able to dramatically cut down on the CPU usage when playing H.264 video files. To see how well NVIDIA's VDPAU really is though, we have carried out some more thorough testing now and our hardware consists of a CPU we purchased for $20 USD and a NVIDIA GeForce graphics card that retails for just $30. Can this very low-end hardware manage to play high definition videos under Linux?
11 December 2008 - 34 Comments

Intel Atom Disk Encryption Performance

While the ASUS Eee PC 901 doesn't have its solid-state disk drives encrypted by default, if you are storing any potentially sensitive information on this netbook -- or any mobile device for that matter -- you really should encrypt the data. When you lose a mobile device or it has been stolen, it can be a nightmare if your banking information was stored on there or even just passwords to your Internet accounts. However, what is the performance cost for fully encrypting a hard drive on one of these Intel Atom computers? In this article we are looking at the performance impact of fully encrypting the solid-state storage versus an unencrypted LVM within Ubuntu Linux.
6 September 2008 - 11 Comments

Intel Core 2 Duo E8400

Back in March we had looked at the Intel Core 2 Duo T9300 mobile processor with its Penryn core and 6MB of shared L2 cache between its two cores clocked at 2.50GHz. We were very pleased with the performance of this mobile processor on Linux, which was found within a Lenovo ThinkPad T61 notebook, and today we are looking at the Penryn's desktop counterpart. Intel's Core 2 Duo "Wolfdale" E8000 series processors were released earlier this year with 6MB of L2 cache, 45nm manufacturing, a 1333MHz FSB, and support for SSE 4.1. The processor from the Wolfdale series we are looking at today under Linux is the Core 2 Duo E8400.
1 July 2008 - 12 Comments

AMD Opteron 2356 Dual Quad-Core

When looking at the AMD Phenom 9500 under Linux, we had found this processor had posed a number of issues from kernel panics to other troubles when running Ubuntu 7.10 with the Linux 2.6.22 kernel. Once, however, upgrading to Ubuntu 8.04 with the Linux 2.6.24 kernel these problems had vanished and we were pleased by this native quad-core desktop processor from AMD. Released a month prior to the first Phenom desktop CPUs were the quad-core Opteron 2300 "Barcelona" processors. We hadn't looked at any AMD Barcelona processors at that time, but today we finally have our hands on two of the new AMD Opteron 2356 server/workstation processors. The Opteron 2356 CPUs come clocked at 2.30GHz, and is a revision B3 Opteron meaning that it has a proper fix for the TLB erratum -- this model was introduced only earlier this month. We have benchmarked the new Opteron 2356 in both single and dual CPU configurations and have compared the results -- under Linux -- to two of Intel's quad-core Xeon processors.
15 April 2008 - 11 Comments

Intel Core 2 Duo T9300 "Penryn"

For a year now Intel has been flaunting its 45nm "Penryn" processor core with its SSE4 instruction set, High-K metal gate transistors, and 6MB of L2 cache. Most of the Penryn media attention has been focused upon the desktop Core 2 processors, but in January at the 2008 Consumer Electronic Show Intel had rolled out sixteen new products and a dozen of them were mobile oriented. Among these Intel innovations were the first mobile Penryn processors. These mobile Intel 45nm CPUs accompanied the Penryn desktop line-up that first began in November of 2007 with Core 2 Extreme QX9650 and then continued with several new Core 2 Quad and Core 2 Duo models. On the server front, the Penryn equivalent is Harpertown and those quad-core Xeon processors have been shipping for the same length of time. Today we are focusing upon the Intel Penryn performance on the mobile front as we explore the Core 2 Duo T9300. The Core 2 Duo T9300 is running inside a Lenovo ThinkPad T61 notebook and we have compared its performance against earlier Centrino-based ThinkPads as we look at how this latest Intel processor performs with Ubuntu Linux.
27 March 2008 - 6 Comments

107 processors articles published on Phoronix.
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