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Comment: Further dividing the country (Score 1) 1005

by HockeyPUcX (#39599051) Attached to: NBC Apologizes For Editing Zimmerman 911 Call
The jury is still out on what actually happened. The news reporting keeps changing on the event, and we (the public) probably do not have all the information. However, it does not help to turn the event into a racial conflict by editing some key words of a very divisive event. All of the politicians and celebrities taking sides on an event that they don't have all the information on only serves to further divide people in this county.
Operating Systems

Ubuntu 10.04 Alpha 2 vs. Early Fedora 13 Benchmarks 157

Posted by ScuttleMonkey
from the flavor-of-the-moment dept.
Given that early benchmarks of the Lucid Lynx were less than encouraging, Phoronix decided to take the latest alpha out for a spin and has set it side-by-side with an early look at Fedora 13. "Overall, there are both positive and negative performance changes for Ubuntu 10.04 LTS Alpha 2 in relation to Ubuntu 9.10. Most of the negative regressions are attributed to the EXT4 file-system losing some of its performance charm. With using a pre-alpha snapshot of Fedora 13 and the benchmark results just being provided for reference purposes, we will hold off on looking into greater detail at this next Red Hat Linux update until it matures."
Graphics

DX11 Tested Against DX9 With Dirt 2 Demo 201

Posted by Soulskill
from the shadows-with-shadows dept.
MojoKid writes "The PC demo for Codemasters' upcoming DirectX 11 racing title, Dirt 2, has just hit the web and is available for download. Dirt 2 is a highly-anticipated racing sim that also happens to feature leading-edge graphic effects. In addition to a DirectX 9 code path, Dirt 2 also utilizes a number of DirectX 11 features, like hardware-tessellated dynamic water, an animated crowd and dynamic cloth effects, in addition to DirectCompute 11-accelerated high-definition ambient occlusion (HADO), full floating-point high dynamic range (HDR) lighting, and full-screen resolution post processing. Performance-wise, DX11 didn't take its toll as much as you'd expect this early on in its adoption cycle." Bit-tech also took a look at the graphical differences, arriving at this conclusion: "You'd need a seriously keen eye and brown paper envelope full of cash from one of the creators of Dirt 2 to notice any real difference between textures in the two versions of DirectX."
Mozilla

Mozilla Jetpack, an API For Standards-Based Add-Ons 42

Posted by timothy
from the now-hand-me-that-metric-screwdriver dept.
revealingheart writes "Mozilla Labs have released a prototype extension called Jetpack: An API for allowing you to write Firefox add-ons using existing web technologies to enhance the browser (e.g. HTML, CSS and Javascript), with the goal of allowing anyone who can build a Web site to participate in making the Web a better place to work, communicate and play. Example add-ons are included on the Jetpack website. While currently only a prototype, this could lead to a simpler and easier to develop add-on system, which all browsers could potentially implement."

Comment: Performance Troubleshooting (Score 1) 83

by HockeyPUcX (#18442129) Attached to: SANs and Excessive Disk Utilization?
I would not assume the disks need to be defragged without other evidence. There are many components that can affect the performance of SAN storage. PCI-e is a faster bus architecture. However, it is unlikely that would increase your performance unless you are running dual-port 4Gb/s host bus adapters (HBA's). What type of storage array is it? What is the speed of your SAN switches, or are you using direct connect? What is the speed of the storage array's fiber channel ports? How many fiber connections does each server have, and how many connections does the array have? If your servers have multiple connections are you using some type of load balancing? If you have SAN switches have you looked at the per port performance to ensure you are not hitting any bottlenecks on the switch? In general SAN boot adds complexity and can make the servers more difficult to manage. I typically only use SAN boot if the server is not capable of housing internal disks, or it is needed for a disaster recovery scenario to replicate the boot drives to another site. Another issue that can degrade performance is swap. If you have no internal drives, and your servers have insufficient memory they could be swapping out to the storage array which can degrade performance. If you are running Windows 2003 you should look into the StorPort drivers as that can increase performance, and if the servers have more than one connection you should look into Multi-Path I/O (MPIO) unless the array offers a proprietary multi-pathing software.

"Though a program be but three lines long, someday it will have to be maintained." -- The Tao of Programming

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