Xen is a relatively new technology to enable several virtual machines (domU) to run on one computer. The purpose of this article is to determine what operating system (NetBSD or Linux) should be selected as domain 0 (dom0) operating system to get the best performance when running several CPU and disk intensive virtual machines at the same time.
HP and the Pacific Northwest National Laboratory (PNNL) have collaborated on a new 11.8-teraflop Supercomputer for the Department of Energy. The $24 Million HP Supercomputer uses the Linux OS and Intel's Itanium2 processors.
The IBM BlueGene/L supercomputer at Lawrence Livermore National Laboratory just got a fresh dose of steroids. Its number-crunching speed has been pumped up to a phenomenal 183.5 trillion calculations every second. That's 183.5 teraflops in geek-speak -- double the 92 teraflops world record that BlueGene set just six months ago.
Here are some of the most powerful PCs vs the G5. The G5 does very well on cpu crunching, but not on graphics tests.
This article will show you how to benchmark operating system performance using MySQL on these OSes so you can find out for yourself if you're missing out. While this may not necessarily be indicative of overall system performance or overall database application performance, it will tell you specifically how well MySQL performs on your platform.
According to new benchmarks NetBSD's performance has increased. In this benchmark NetBSD surpassed FreeBSD in nearly every test.
Microsoft released Service Pack 2 and millions installed it. Did boat anchors come with the enhancements? Short-Media threw 108 benchmarks at Service Pack 1 and Service Pack 2 in an attempt to declare a winner.
BareFeats is continuing their benchmark articles for the fastest workstation/desktop machines around.
An ongoing series of articles that track the quality of programming tools for Linux, including Opteron and Pentium 4 tests for the GNU Compiler Collection (GCC) and Intel C++.
C/C++ parsers, such as libxml2 or Xerces C++ have entered the scene, and so have their Perl extensions. Perl XML folks have developed Perl SAX, a Perlish counterpart of Java SAX interface. Currently, CPAN contains several parsing modules. This article compares the performance of five free PerlSAX 2 parsers available from CPAN. Older XML::Parser is also included to serve as a baseline.
Here are a few interesting benchmarks on QEMU, Valgrid simulation, Bochs and native speeds on x86. Also, a new stable release, Valgrind 2.2.0, is available. 2.2.0 brings many improvements over 2.0.0, and includes the new Massif heap-profiling tool.
On June 23, 2004, Sun published a whitepaper showcasing superior JavaTM 2 Enterprise Edition (J2EETM) web services performance when compared to Microsoft's .NET. Microsoft published a response on July 14th refuting claims and stating that in their tests .NET performance was higher than Java Web Services. More here and a reply from Microsoft here.
To get a well-rounded breakdown of where Linux is going, and where it trumps (or fails against) Windows, AnandTech took the two largest 64-bit Linux distributions, their 32-bit counterparts, and the Windows XP 64-bit public beta for a test drive.
This article surveys a number of benchmarks and finds that Java performance on numerical code is comparable to that of C++, with hints that Java's relative performance is continuing to improve. Then they describe clear theoretical reasons why these benchmark results should be expected.
"The Power Mac G5 is a formidable machine, representing a giant leap in performance over the G4. But the 64-bit transition so far only represents a small step. Even though there's not much of a benefit from 64-bit computing yet, this marks the beginning of a new era for Apple, where the 64-bit world will enable new capabilities for the content creation community" the reviewer concludes in his benchmark article.
"The conclusion is obvious by the "Total Time For All Benchmarks Test." The best journaling file system to choose based upon these results would be: JFS, ReiserFS or XFS depending on your needs and what types of files you are dealing with. I was quite surprised how slow ext3 was overall, as many distributions use this file system as their default file system. Overall, one should choose the best file system based upon the properties of the files they are dealing with for the best performance possible!" Read the whole article at the LinuxGazette.
Here is a look at Virtual PC 2004's performace. It's put to the test by using the PassMark benchmark.
"Anyone who's ever set out to perform Linux benchmarks quickly realizes the difficulties involved in such an undertaking, not only with the availability of quality benchmarks (or lack thereof), but also in the way the test system(s) are configured. Most of the Linux benchmarks that I see on hardware review sites are simple things like kernel compiles or povray... maybe a game benchmark or two." 2CPU.com gets serious over Linux benchmarking on the web.
In continuing with my articles exploring the my SPARC-based Sun Ultra 5, I'm going to cover the topic of compiler optimizations on the SPARC platform. While many are familiar with GCC compiler optimizations for the x86 platform, there are naturally differences for GCC on SPARC, and some platform-specific issues to keep in mind.