Translations:Handbook:Parts/Working/Features/25/en

is a fast compiler cache. Whenever an application is compiled, it will cache intermediate results so that, whenever the same program is recompiled, the compilation time is greatly reduced. The first time ccache is run, it will be much slower than a normal compilation. Subsequent recompiles however should be faster. ccache is only helpful if the same application will be recompiled many times (or upgrades of the same application are happening frequently); thus it's mostly only useful for software developers.