On Thu, Jan 27 2011, Neil Bothwick wrote: > On Thu, 27 Jan 2011 17:09:27 +0200, Nikos Chantziaras wrote: > >> > So on a 20 package world update, only 19 are faster while the 20th >> > runs at the same speed? Where's the loss there? Even if the last were >> > slower, it would be worth it. >> >> Given the amount of time unpack/configure/install of most packages >> needs (very short), my observation is that it would not be worth it. > > Even if that were true, how much time would you have to save to justify > adding -j 2 to EMERGE_DEFAULTS in make.conf? > > But it's not true, large packages spend a lot of time on these phases of > the install.
OK I'm convinced since I know that those phases do take noticeable time. I have a "4" processor i7 model 620 (2 cores, doubled for hyperthreading) and have set MAKEOPTS="-j5". If I add -jobs=2 to EMERGE_DEFAULT_OPTS, should I lower MAKEOPTS to 3 (to 4)? thanks, allan
