DaemonTW - Slashdot User

Comment Re:Use Virtuozzo (Score 1) 223

by DaemonTW on Thursday March 29, 2007 @09:44AM (#18527453) Attached to: Virtualizing Cuts Web App Performance 43%

This is what most hosting companies who offer VPS's do, as Virtuozzo is one of the only virtualisation packages that doesn't suffer from massive performance hits. Granted this is more about what level things are virtualised at than better coding but the performance difference is very significant.

I've seen servers running over a hundred virtual servers (mostly all low usage) without any problems, something that is completely out of the question with VMWare (even ESX).

I'm sure there will be many who will point out that it has less isolation and therefore less secure, however so far I haven't heard of any compromises.

Intel Next-Gen CPU Has Memory Controller and GPU 307

Posted by kdawson on Thursday March 29, 2007 @09:07AM from the mmmm-threads dept.

Many readers wrote in with news of Intel's revelations yesterday about its upcoming Penryn and Nehalem cores. Information has been trickling out about Penryn, but the big news concerns Nehalem — the "tock" to Penryn's "tick." Nehalem will be a scalable architecture with some products having on-board memory controller, "on-package" GPU, and up to 16 threads per chip. From Ars Technica's coverage: "...Intel's Pat Gelsinger also made a number of high-level disclosures about the successor to Penryn, the 45nm Nehalem core. Unlike Penryn, which is a shrink/derivative of Core 2 Duo (Merom), Nehalem is architected from the ground up for 45nm. This is a major new design, and Gelsinger revealed some truly tantalizing details about it. Nehalem has its roots in the four-issue Core 2 Duo architecture, but the direction that it will take Intel is apparent in Gelsinger's insistence that, 'we view Nehalem as the first true dynamically scalable microarchitecture.' What Gelsinger means by this is that Nehalem is not only designed to take Intel up to eight cores on a single die, but those cores are meant to be mixed and matched with varied amounts of cache and different features in order to produce processors that are tailored to specific market segments." More details, including Intel's slideware, appear at PC Perspectives and HotHardware.

Submission + - Terahertz spectrum for wireless communication

Submitted by holy_calamity on Thursday March 29, 2007 @08:24AM

holy_calamity writes: A first step to allowing wireless data transfer over a currently unused part of the electromagnetic spectrum are reported in New Scientist. Terahertz radiation exists between radio and infrared. A new filter created at the University of Utah can filter out particular frequencies, a prerequisite for using it for data. The abstract of the paper in the journal Nature is freely available.

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