Forgot your password?

Facebook Seeks Devs To Make Linux Network Stack As Good As FreeBSD's 195

Posted by timothy
from the high-praise-all-around dept.
An anonymous reader writes Facebook posted a career application which, in their own words is 'seeking a Linux Kernel Software Engineer to join our Kernel team, with a primary focus on the networking subsystem. Our goal over the next few years is for the Linux kernel network stack to rival or exceed that of FreeBSD.' Two interesting bullet points listing "responsibilities": Improve IPv6 support in the kernel, and eliminate perf and stability issues. FB is one of the worlds largest IPv6 deployments; Investigate and participate in emerging protocols (MPTCP, QUIC, etc) discussions,implementation, experimentation, tooling, etc.

Comment: Re:Murphy says no. (Score 1) 265

by bwhaley (#47434133) Attached to: Ask Slashdot: Unattended Maintenance Windows?

If you're building services that still require "regular maintenance windows" in 2014, you're doing it wrong.

This is a really nice sentiment but is in fact somewhat disconnected from reality.

In the web world, building zero downtime services that don't require maintenance is doable. In many enterprise IT environments with legacy or bloated software (hospitals, education, government) it's a non-starter. The staff do not have the skill, the applications don't have the support, and the political will within the organization is not there. Database migrations alone can be a major source of downtime, and that's largely true even for web services.

Comment: T-Mobile (Score 1) 305

by athakur999 (#47242687) Attached to: When will large-scale IPv6 deployment happen?

Many of the newer phones from T-Mobile (the US version, anyway) are configured out of the box to use native IPv6. A third of their data traffic is now terminating on IPv6. They're using NAT64 for reaching hosts that don't have a native IPv6 address.

IPv6 rollout is happening, just not in the places some of us are looking.

Comment: Re:Still relevant nowadays? (Score 1) 58

by cide1 (#47191987) Attached to: Mesa 10.2 Improves Linux's Open-Source Graphics Drivers

Ive been working on a platform that is Linux running on a 1 GHz, 32 bit ARM, where we want to run an already existing Qt Quick 2 application. We have run mockup applications with X using the virtual framebuffer and the mesa software renderer, and found performance to be really bad. On the order of 1 FPS or so. Any suggestions on ways to make the software renderer more usable? My understanding is that LLVM would help here, but only works on x86 and x64.

Comment: Re:BeOS kicked butt, give Haiku a break! (Score 5, Interesting) 70

by cide1 (#47090279) Attached to: Haiku Gains Support For Current Radeon HD Cards

On hardware from circa 2001, BeOS had an audio latency of about 3 msec from input to output. I don't know the x86 / x64 number, but in 2014 running on the best ARM hardware available, by default, the Linux scheduler runs every 10 msec, so audio latency of 40-80 msec is pretty common. In many applications, that is quite a significant difference. There are good reasons why Linux has this latency, but it is a question of optimizing for different use cases. BeOS had a laser focused use case of Desktop performance. Linux is used on servers, desktops, embedded, super computers, and all kinds of wierd places.

Comment: Re:This just in... (Score 4, Interesting) 160

by Verteiron (#45078321) Attached to: Car Dealers vs the Web: GM Shifts Toward Online Purchasing

Heh, unless you work for a GM dealership, you have NO idea how bad GM is at IT. Their dealer-side website still does not officially support anything other than IE8. Business reporting relies on ActiveX integration with Excel, and only works properly with Excel 2000 and 2003. It can be made to work under 2007, but they don't support anything higher. Parts of the service-related workbenches still use VBScript. It used to be accessible only over a super-slow satellite link, but they changed that a few years ago, thank god.

To be fair, though, Toyota's web back-end, Dealer Daily, is even worse. IE-only, accessible only through a dedicated T1 which may not be used for anything else (but which you still pay full price for, of course). Blank page under anything other than IE.

Come to think of it, a lot of dealership stuff is locked on IE. Dealertrack (intentionally locks out non-IE browsers), Dealersocket CRM (featured-limited under non-IE browsers). ADP is the biggest supplier of dealership management software in the US and most of their stuff is entirely reliant on IE.

It's a pathetic state of affairs.

Comment: Write some code (Score 3, Interesting) 121

by bwhaley (#44701531) Attached to: Ask Slashdot: Hands-On Activity For IT Career Fair

Come up with a few simple programming projects that students can run through. There's something magical about writing code and seeing the computer execute exactly what you told it to do. Write a Ruby Sinatra or Python Flask app and show how to access it from the command line. This will teach them what a web server is and how to write simple code at the same time.

"Morality is one thing. Ratings are everything." - A Network 23 executive on "Max Headroom"