Home » Blog » Tags » performance

performance

Zapcc 1.0 - A Much Faster C++ Compiler

By herbsto | Mar 8, 2017 06:00 AM | Tags: performance

We are happy to announce Zapcc, a Clang/LLVM based C++ compiler, with much faster compilations.

Zapcc

by the Zapcc team

About the compiler:

Typically, Zapcc accelerate full C++ builds by x2-x5, and incremental builds by x10 and more.

Zapcc is available for evaluation on the companies website.

Feel free to try it out!

Const, Move and RVO--Bartlomiej Filipek

By Adrien Hamelin | Jan 23, 2017 02:21 PM | Tags: performance intermediate

const does not prevent (N)RVO, youhou.

Const, Move and RVO

by Bartlomiej Filipek

From the article:

C++ is a surprising language. Sometimes simple things are not that simple in practice. Last time I argued that in function bodies const should be used most of the time. But two cases were missed: when moving and when returning a value.

Does const influence move and RVO?

Order Your Members

By Jonas Devlieghere | Jan 11, 2017 04:17 AM | Tags: performance intermediate

How ordering members can impact performance.

Order Your Members

by Jonas Devlieghere

From the article:

The article highlights the impact that different choices regarding the ordering of members in a struct can have on the performance of your code. A lot can be achieved by taking into account some general guidelines.

Add a const here, delete a const there…--Bruce Dawson

By Adrien Hamelin | Jan 10, 2017 02:19 PM | Tags: performance intermediate

Why constness is important in one article. Can be even better with constexpr.

Add a const here, delete a const there…

by Bruce Dawson

From the article:

I just completed a series of changes that shrunk the Chrome browser’s on-disk size on Windows by over a megabyte, moved about 500 KB of data from its read/write data segments to its read-only data segments, and reduced its private working set by about 200 KB per-process. The amusing thing about this series of changes is that they consisted entirely of removing const from some places, and adding const to others. Compilers be weird...