March 2018
Intermediate to advanced
272 pages
7h 4m
English
Content preview from Rust High Performance
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Link-time optimizations
The next configuration option, useful for improving the performance of the application, is link-time optimizations. Usually, when a program gets built, once all the code has been optimized, it gets linked to other libraries and functions that provide the required functionality. This, however, does not always happen in the most efficient way. Sometimes, a function gets linked twice, or a piece of code gets used in many places, and in that case, the compiler might decide to duplicate some code.
The program will work perfectly, but this has two main disadvantages—first of all, duplicating code and links will make the binary bigger, which is probably something you don't want, and secondly, it will reduce the performance. ...
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