By Adrien Hamelin | Aug 30, 2019 12:20 PM | Tags: performance community
Do you want to add any?
Myths of My Blog Readers
by Rainer Grimm
From the article:
I was very curious about your C++ myths. In particular, my German readers were quite active. I got a few E-Mails and observed a vivid discussion on Heise Developer...
By Adrien Hamelin | Aug 20, 2019 10:41 AM | Tags: performance community
We’re in the final countdown to this year’s CppCon, which starts on September 16. To whet your appetite for this year’s conference, here’s another of the top-rated talks from last year. Enjoy – and register today for CppCon 2019!
OOP Is Dead, Long Live Data-oriented Design
by Stoyan Nikolov
Summary of the talk:
For decades C++ developers have built software around OOP concepts that ultimately failed us - we didn’t see the promises of code reuse, maintenance or simplicity fulfilled, and performance suffers significantly. Data-oriented design can be a better paradigm in fields where C++ is most important - game development, high-performance computing, and real-time systems.
The talk will briefly introduce data-oriented design and focus on practical real-world examples of applying DoD where previously OOP constructs were widely employed.
Examples will be shown from modern web browsers. They are overwhelmingly written in C++ with OOP - that’s why most of them are slow memory hogs. In the talk I’ll draw parallels between the design of systems in Chrome and their counterparts in the HTML renderer Hummingbird. As we’ll see, Hummingbird is multiple times faster because it ditches OOP for good in all performance-critical areas.
We will see how real-world C++ OOP systems can be re-designed in a C++ data-oriented way for better performance, scalability, maintainability and testability.
By Adrien Hamelin | Jun 3, 2019 11:55 AM | Tags: performance
Quick A: performance.
Recently on SO:
Why does moving std::optional not reset state?
In a word: Performance.
One of the chief motivating reasons for move semantics to exist in the first place is performance. So the special operations move construction and move assignment should be as fast as possible for all types...
By Adrien Hamelin | May 29, 2019 12:26 PM | Tags: stl performance c++14
Did you know?
Heterogeneous Lookup in Ordered Containers, C++14 Feature
by Bartlomiej Filipek
From the article:
If you have a map of strings, like std::map<std::string, int> m; and you want to find some element by m.find("abc"). Do you have to pay the price and construct a std::string object? Can you optimize it?
Let’s have a look at one feature enabled in C++14 that might help optimize such container access...
By Hartmut Kaiser | May 23, 2019 09:31 AM | Tags: performance parallelism heterogeneous computing distributed computing c++17 c++14 c++11
The STE||AR Group has released V1.3 of HPX -- A C++ Standard library for parallelism and concurrency.
HPX V1.3 Released
The newest version of HPX (V1.3) is now available for download! This release focuses on performance and stability improvements. Please see here for the full release notes.
HPX is a general purpose parallel C++ runtime system for applications of any scale. It implements all of the related facilities as defined by the C++ Standard. As of this writing, HPX provides the only widely available open-source implementation of the new C++17 parallel algorithms. Additionally, HPX implements functionalities proposed as part of the ongoing C++ standardization process, such as large parts of the C++ Concurrency TS, Parallelism TS V2, data-parallel algorithms, executors, and many more. It also extends the existing C++ Standard APIs to the distributed case (e.g. compute clusters) and for heterogeneous systems (e.g. GPUs).
HPX seamlessly enables a new Asynchronous C++ Standard Programming Model that tends to improve the parallel efficiency of our applications and helps reducing complexities usually associated with parellism and concurrency.
By Meeting C++ | Apr 25, 2019 05:09 AM | Tags: performance meetingcpp experimental efficiency community c++20 c++17 c++14 c++11 basics advanced
The call for submissions is open for Meeting C++ 2019!
New speakers are welcome to submit as there is a dedicated track for this, start speaking at Meeting C++!
Submit your talk to Meeting C++ 2019!
by Jens Weller
From the article:
When Meeting C++ 2019 was announced in the begin of April, there was already a hint that you could submit your talks. And so far a few have done so. Now its time for an official news entry. Submit your talk to Meeting C++ 2019! This year its the 8th edition of Meeting C++!
Speaking at Meeting C++ is a fun experience, you get to attend the speakers dinner, attend the full conference for free and enjoy the luxurious Hotelrooms the Andels offers from Wednesday to Saturday! You can look at last years schedule to get a feel for what your competition might talk about, but have in mind that you don't see the talks that were not submitted! If you want to talk about a C++ topic that wasn't covered yet, or have a unique idea for your talk, please submit! Speakers don't need to buy a ticket and the conference has a contingent of rooms available for speakers & staff.
By Adrien Hamelin | Mar 21, 2019 12:03 PM | Tags: performance community
Getting better!
Game performance and compilation time improvements in Visual Studio 2019
by Gratian Lup
From the article:
The C++ compiler in Visual Studio 2019 includes several new optimizations and improvements geared towards increasing the performance of games and making game developers more productive by reducing the compilation time of large projects. Although the focus of this blog post is on the game industry, these improvements apply to most C++ applications and C++ developers...
By Adrien Hamelin | Mar 18, 2019 10:50 AM | Tags: performance advanced
Your complier does magic.
A gentle introduction to jump threading optimizations
by Aldy Hernandez
From the article:
As part of the GCC developers‘ on-demand range work for GCC 10, I’ve been playing with improving the backward jump threader so it can thread paths that are range-dependent. This, in turn, had me looking at the jump threader, which is a part of the compiler I’ve been carefully avoiding for years. If, like me, you’re curious about compiler optimizations, but are jump-threading-agnostic, perhaps you’ll be interested in this short introduction...
By Meeting C++ | Mar 9, 2019 07:20 AM | Tags: performance meetingcpp intermediate embedded efficiency community c++14 basics
Dan Saks Keynote from Meeting Embedded 2018
Writing better embedded Software
by Dan Saks
By Meeting C++ | Feb 27, 2019 06:24 AM | Tags: standardization performance meetingcpp intermediate efficiency basics advanced
Guy Davidson speaking about standardization and algebraic libraries
Standardizing a linear algebra library
by Guy Davidson