characterization

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Analysis of a TCP Hybrid Model

This paper uses hybrid systems to model and analyze the transient and steady-state behavior of multiple TCP flows that share a single common bottle-neck link. The main contributions of this paper are a characterization of the transient behavior of the flows, predicting their experimentally observed exponential synchronization and a characterization...

Tags: Provisioning, Characterization, TCP, Analysis, University Of California, Tcp/Ip, Networking

White papers 2007-01-01

Tmix: A Tool for Generating Realistic TCP Application Workloads in ns-2

In order to perform realistic network simulations, one needs a traffic generator that is capable of generating realistic synthetic traffic in a closed-loop fashion that "looks like" traffic found on an actual network. This paper describes such a traffic generation system for the widely used ns-2 simulator. The system takes...

Tags: Network, Trace, Characterization, Association For Computing Machinery, TCP, Tool, Tcp/Ip, Networking

White papers 2006-07-01

Is Massachusetts' OpenDocument decision on the rocks?

Is Massachusetts' OpenDocument decision on the rocks?I can see it nowThe Legislature passes a Bill authorizing Microsoft to dictate file formats for the Administrative Branch.Hmmm -- well, Don insists it could happen.I'm still waiting for someone to suggest revised wording for the ETRM that would include Microsoft's file formats. ...

Tags: OpenDocument Format (ODF), OpenDocument Format, Microsoft Corp., agency, characterization, MSFT

Discussion threads 2005-10-24

Characterizing System Level Energy Consumption in Mobile Computing Platforms

This paper approaches energy consumption characterization in mobile computing platforms by assessing energy consumption of "Basic" application-level tasks, such as processing, input/output (disk, display, etc.), communication transmission and reception over the network, and combinations thereof. Besides providing information on the energy consumption behavior of typical tasks performed by mobile computers,...

Tags: Power Management, Mobile, Mobile Computing, Characterization, Advertising & Promotion, Handhelds, Wireless, Marketing, Hardware

White papers 2005-04-28

Characterization and Evaluation of TCP and UDP-Based Transport on Real Networks

Standard TCP Reno TCP does not perform well on fast long distance networks, due to its AIMD congestion control algorithm. This paper considers the effectiveness of various alternatives, in particular with respect to their applicability to a production environment. Then the paper characterizes and evaluates the achievable throughput, stability and...

Tags: Network, RealNetworks Inc., Characterization, TCP, UDP, Tcp/Ip, Networking

White papers 2005-01-01

Additional Resources

Amanda Chapel, aka "Strumpette," needs some tough love

I had a strange Twitter back-and-forth with "Amanda Chapel," the pseudonymous authors of a PR blog called "Strumpette," about the nature of the hacker ethic. I personally don't think the hacker ethic is very effective as a counterpoint to the system of intellectual property it decries, because hackers seem intent...

Tags: Hacker, Twitter, Amanda Chapel, Hacking, Security, Mitch Ratcliffe

Blog posts 2008-07-14

The full cost of ADHD includes ignorance

The full cost of ADHD includes ignoranceare you a real doctor or like a Doctor Pepper?From your column "In females it displays differently, often as passivity, which means it often goes undiagnosed."Passivity? FYI, "passivity" is one of the symptoms of ADHD. Concentrate and try to answer the question, do you...

Tags: Games, ADHD

Discussion threads 2008-07-14

When proprietary companies go open source

I've been burning the midnight oil yet again, working like a beaver on speed as I build my software castle on a server in Los Angeles not that beavers build castles. It's going well, and we are on the verge of starting trials in the UK. If any of you...

Tags: Software, Netscape Communications Corp., Stallman, Open Source, John Carroll

Blog posts 2008-07-11

Microsoft's manycore strategy

The post on Apple's Grand Central multicore support in OS X.vi had some commenters claiming that Microsoft had already solved the multicore software problem. Far from it. And Microsoft knows it Microsoft has a multi-pronged campaign to get in front of multicore. They're hiring smart...

Tags: Strategy, Microsoft Corp., Multi-core, MR, Robin Harris

Blog posts 2008-06-25

Momentum Webcast: Microsoft Exchange Server 2007 Mailbox Role Memory Characterization Using HP BladeSystem (Level 200)

With Exchange Server 2007, Microsoft is able to move to a 64-bit operating system using Windows Server 2003 x64 platforms. This allowed for significant increases in available memory resources for the application, which in turn allowed memory to scale well beyond the four gigabytes available to Exchange Server 2003. Designers...

Tags: Microsoft Exchange Server 2007, Hewlett-Packard Co., Webcast, Microsoft Exchange Server, Memory, Microsoft Corp., E-mail Servers, Groupware, Servers, Enterprise Software, Software, Hardware

Webcasts 2008-06-19

Icahn on Yahoo: I'd hire a 'talented and experienced' CEO

In his latest missive to Yahoo's board of directors, activist shareholder Carl Icahn blasts chairman Roy Bostock and outlines what he'd do if he gets control of the company's board. Right after he ditched Yahoo's poison pill, Icahn said he would "ask our new board to hire a talented...

Tags: Poison Pill, Shareholder, Board, Yahoo! Inc., Microsoft Corp., Plan, CEO, Corporate Governance, Business Operations, Corporate Law, Larry Dignan

Blog posts 2008-06-06

Growing nano pine trees in Wisconsin

University of Wisconsin-Madison chemists have accidentally created nano pine trees with trunks and branches. As said the lead researcher, 'At the beginning we saw just a couple of trees, and we said, 'What the heck is going on here?' They were so curious.' In fact, this could lead to an...

Tags: Dislocation, Trunk, Productivity, Team Management, Leadership, Management, Roland Piquepaille

Blog posts 2008-05-02

Shooting movies of molecules

Scientists at the U.S. Department of Energy's DOE Argonne National Laboratory have developed techniques for creating movies of biological and chemical molecules. It has been done before for crystalline structures of salt or metals, but organic molecules are more complex, and more difficult to catch. Until now, researchers had to...

Tags: Argonne National Laboratory, Molecule, Biotechnology, Productivity, Research & Development, Business Operations, Roland Piquepaille

Blog posts 2008-04-17

Is MinWin really the new Windows 7 kernel?

In my post about Windows 7 back in January ("Windows 7 = Vista Release 2"), I ended with a statement that deserves some follow-up: Those who are predicting that Windows 7 will include some radically stripped-down kernel (the so-called MinWin project) or a new file system are missing the...

Tags: Microsoft Windows 7, Microsoft Windows Vista, Kernel, MinWin, Microsoft Windows, Operating Systems, Software, Ed Bott

Blog posts 2008-03-31

If you call someone a 'nerd' are you a moron? (Part 1)

Guest post: Chris Matyszczyk examines what it means to be a nerd in part 1 of his review of David Anderegg's new book, "Nerds." Do you ever take an instant dislike to people, without ever really examining why that might be? In my...

Tags: Dr., Chris Matyszczyk

Blog posts 2008-02-01

A difference in philosophy

A difference in philosophyDeveloper HandholdingMS has worked hard to develop software components that can be used to more efficiently build robust software. This is a Good Thing, and I don't think it is in the least bit inconsistent with "Unix" philosophy.The problem is, when faced with a choice between...

Tags: Operating systems, Apple Inc., Unix, Microsoft Corp., VMS

Discussion threads 2008-01-29

Apple, the $20 iPod touch update and GAAP

Apple, the $20 iPod touch update and GAAPIf it really was GAAP, then Apple would have to charge for the ATV upgrade!I agree with you on this. Firmware upgrade usually contain new feature, so why are they not being charged for? Current Apple TV users are getting a free upgrade...

Tags: Digital music, Digital media, Apple Inc., Apple iPod Touch, GAAP, Apple iPod

Discussion threads 2008-01-16

Is Apple seeking a union with Adobe?

Robert Cringely makes a case for Apple buying Adobe. What I DO see happening is Apple buying Adobe, which would give it effective dominance of digital content creation and distribution on a global scale. Bruce Chizen suddenly stepped down as Adobe's CEO without warning: why? A caretaker CEO (my...

Tags: Adobe Systems Inc., Apple Inc., Robert Cringely, Steve, Corporate Communications, Mergers & Acquisitions, Desktops, Digital Music, Digital Media, Marketing, Investment, Finance, Hardware, Personal Technology, Consumer Electronics, Dan Farber

Blog posts 2008-01-11

Energy Characterization of the Stargate Sensor Network Gateway

This paper presents a new energy estimation model for sensor network intermediate nodes (i.e. the Crossbow XScale Stargate). Such devices are battery powered and resource constrained and commonly employed as communication, processing, and gateway elements within sensor networks. Understanding and accurately characterizing the energy behavior of such devices is the...

Tags: Gateway Inc., Network, Battery, Sensor, University Of California, Engineering

White papers 2008-01-01

FTC: Google-DoubleClick deal a go; One dissenter; Privacy principles floated

The Federal Trade Commission said Thursday that it won't block Google's $3.1 billion acquisition of DoubleClick. The vote was 4 to 1 to close the 8 month investigation. According to the FTC's statement: "After carefully reviewing the evidence, we have concluded that Google's proposed acquisition of DoubleClick is unlikely...

Tags: Google Inc., Acquisition, DoubleClick Inc., FTC, Mergers & Acquisitions, Corporate Law, Investment, Finance, Business Operations, Larry Dignan

Blog posts 2007-12-20