February 11, 2013

Video of C++ and Beyond 2012: Herb Sutter - atomic Weapons

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Channel 9 has posted a two-part video  - Herb Sutter’s “atomic<> Weapons” presented at C++ and Beyond 2012 last summer in Asheville, NC. Here are the links: atomic<> Weapons, 1 of 2 and atomic<> Weapons, 2 of 2.

atomicweaponspart1atomicweaponspart2

Here is the abstract:

This session in one word: Deep.

It’s a session that includes topics I’ve publicly said for years is Stuff You Shouldn’t Need To Know and I Just Won’t Teach, but it’s becoming achingly clear that people do need to know about it. Achingly, heartbreakingly clear, because some hardware incents you to pull out the big guns to achieve top performance, and C++ programmers just are so addicted to full performance that they’ll reach for the big red levers with the flashing warning lights. Since we can’t keep people from pulling the big red levers, we’d better document the A to Z of what the levers actually do, so that people don’t SCRAM unless they really, really, really meant to.

Enjoy!

 

January 7, 2013

Video of C++ and Beyond 2012: You don’t know [blank] and [blank]

Posted by Lisa Wells under Videos | Tags: , , , , , |
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Channel 9 has posted another video  - Herb Sutter’s “You don’t know [blank] and [blank]” presented at C++ and Beyond 2012 last summer in Asheville, NC. Here’s the link: You don’t know [blank] and [blank].

youdontknow

Here is the abstract:

In addition to the many new C++11 features that everyone’s listing, it has dawned on me over the winter that there’s actually another major change that isn’t being talked about anywhere, or even being listed as a change in C++11 at all as far as I know, because I and other key experts and committee members I’ve asked didn’t fully realize that we altered the basic meaning of not one but two fundamental keywords in C++. It’s a change that has profound consequences, that rewrites and/or invalidates several pieces of pre-C++11 design guidance, and that’s directly related to writing solid code in a concurrent and parallel world. This isn’t just an academic change, either — everyone is going to have to learn and apply the new C++11 guidance that we’ll cover in this session.

I plan to talk about it first at C&B, in a session tentatively titled as above — I’ll fill in the keywords later. You may already guess a few keyword candidates based on the description above, and here’s a final hint: You’ll hardly find two C++ keywords that are older, or whose meanings are more changed from C++98 to C++11. (No, they aren’t auto and register.)

Enjoy!

 

January 7, 2013

Video of C++ and Beyond 2012: C++ Concurrency

Posted by Lisa Wells under Videos | Tags: , |
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Channel 9 has posted a video of Herb Sutter’s “C++ Concurrency” presented at C++ and Beyond 2012 last summer in Asheville, NC. Here’s the link: C++ Concurrency.

herb - concurrencytalk

Herb says:

I’ve spoken and written on these topics before. Here’s what’s different about this talk:

  • Brand new: This material goes beyond what I’ve written and taught about before in my Effective Concurrency articles and courses.
  • Cutting-edge current: It covers the best-practices state of the art techniques and shipping tools, and what parts of that are standardized in C++11 already (the answer to that one may surprise you!) and what’s en route to near-term standardization and why, with coverage of the latest discussions.
  • Blocking vs. non-blocking: What’s the difference between blocking and non-blocking styles, why on earth would you care, which kinds does C++11 support, and how are we looking at rounding it out in C++1y?

The answers all matter to you – even the ones not yet in the C++ standard – because they are real, available in shipping products, and affect how you design your software today.

Enjoy!