On 01/27/2011 03:11 PM, Dale wrote:
[...] I am using the -j option for the first time now. I'm updating KDE. It seems to work fine. It doesn't scroll all the stuff like with a regular emerges but this new rig is so fast, I can't read it anyway. I did have a package to fail and it spit out the error for me to read.
You don't need that if you have MAKEOPTS set in your make.conf, which is preferred. The -j option of emerge emerges multiple packages, while with MAKEOPTS set to "-j4" or whatever does a parallel build in the same package (meaning compiling multiple source files at the same time).
It's preferred because with "emerge -jN" the last package will only use one CPU, while with "-jN" in MAKEOPTS even the last package will use N CPUs. Furthermore, emerge can't always build N packages at the same time because one can depend on the other, so it will have to wait until the dependency is built.
