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New Router Manages Flows, Not Packets 122

Posted by ScuttleMonkey from the let-the-injections-begin dept.
An anonymous reader writes "A new router, designed by one of the creators of ARPANET, manages flows of packets instead of only managing individual packets. The router recognizes packets that are following the first and sends them along faster than if it had to route them as individuals. When overloaded, the router can make better choices of which packets to drop. 'Indeed, during most of my career as a network engineer, I never guessed that the queuing and discarding of packets in routers would create serious problems. More recently, though, as my Anagran colleagues and I scrutinized routers during peak workloads, we spotted two serious problems. First, routers discard packets somewhat randomly, causing some transmissions to stall. Second, the packets that are queued because of momentary overloads experience substantial and nonuniform delays, significantly reducing throughput (TCP throughput is inversely proportional to delay). These two effects hinder traffic for all applications, and some transmissions can take 10 times as long as others to complete.'"
Operating Systems

Is ext4 Stable For Production Systems? 289

Posted by Soulskill from the work-in-progress dept.
dr_dracula writes "Earlier this year, the ext4 filesystem was accepted into the Linux kernel. Shortly thereafter, it was discovered that some applications, such as KDE, were at risk of losing files when used on top of ext4. This was diagnosed as a rift between the design of the ext4 filesystem and the design of applications running on top of ext4. The crux of the problem was that applications were relying on ext3-specific behavior for flushing data to disk, which ext4 was not following. Recent kernel releases include patches to address these issues. My questions to the early adopters of ext4 are about whether the patches have performed as expected. What is your overall feeling about ext4? Do you think is solid enough for most users to trust it with their data? Did you find any significant performance improvements compared to ext3? Is there any incentive to move to ext4, other than sheer curiosity?"

Comment Clarification (Score 5, Informative) 372

by ryanleary (#27379857) Attached to: Best Grad Program For a Computer Science Major?

Thanks for all the replies so far, the reason I ask what will look best on a resume is with the economy the way it is, I've begun to wonder what combination of education and experience will give me the most opportunities down the road.

I am an excellent programmer, but working 9-5 in a cubicle writing code scares me and does not seem like a good way to spend the next 30+ years of my life.

That being said, I have done some freelance web design and web database application development and really enjoyed it. I have also worked in various environments doing IT work and found it alright.

So further complicating the issue, (and no offense to people who have a BS or MS in IT) but I often hear that IT degrees are for people who couldn't make it in Computer Science. So does going from a competitive CS program to an IT program look like this?

I don't know how graduate school works. I'm not worried about being miserable at school. I can do anything for one year. It's after school that I'm most concerned with.

And finally, regarding staying here at the same Uni for graduate work, I had never really thought of leaving. A big part of that, however, is I have worked really hard while here and will be completing my B.S. in a total of 3 years. I will still have quite a bit of scholarship money that may be applied to my graduate work if I stay here.

Again, thank you all so much.
Printer

Journal Journal: Used laser printer, works a treat in Ubuntu 8.10 & 9.4 2

Journal by timothy

I've long delayed getting a printer, but finally have a few things that I want to print queued up again, and it's getting to be too much of a hassle with printing them at friends' places, etc. There even is a printer here in the house, but it's 3 floors up, often out of paper, or disconnected, or needs to have its network connection coaxed into cooperation, and its toner isn't looking so hot anyhow.
Education

Submission + - Best Grad Program for Computer Science Major?

Submitted by
ryanleary
ryanleary writes: "I am currently a junior computer science major at a relatively competitive university. I am intending on remaining here for some graduate work and I would like to get a masters degree. The question is... what Masters degree to get? An MS in computer science appears to be highly theoretical, while an MS in IT seems more practical with more breadth (covering some management, HCI, Design). So, Slashdot, what looks best on a resume and where might I expect to make more money in the not-too-distant future? Computer Science, Information Technology, or something different altogether--an MBA??"

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