Mohan wrote: > I've actually seen some improvement on compile times running Athlons > and such as well with -j2... I suspect it fills time the compiler spends > waiting for this or that read, or write, or something. There are > certainly a lot of packages I've run into that have trouble with > parallelization, though. Not that it's much of a problem to just start > the compile again without -j2. > > I've only just completed my 1st LFS build, having come from 3 years on Gentoo, where the '-j' flag is one of the standard options. Their recommendation (listed in /etc/make.conf.example) is to set it to "the number of cpu's plus one", which for my AthlonXP meant '-j2'...
...I completely forgot it's existence during this LFS build, & without it i'm almost positive that my compile-times were faster (toolchain packages more than twice as fast). So now i'm thinking that Gentoo's recommendation is somewhat innacurate, & would be better worded as "set -j to the number of cpu-cores" or some such, having no personal experience of such a configuration, but agreeing with the theories set forth in this thread... -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
