Deskin Miller wrote: > Is this worth adding to the book?
Most definitely IMHO. Multi-core systems will soon be the norm. It's just crazy not to take advantage. There used to exist a "SMP" hint somewhere. Maybe this is it: http://www.linuxfromscratch.org/hints/downloads/files/OLD/parallelcompiling.txt A lot of seasoned SMP-building folks work on the basis of make -j X+1 ie: make -j3 if you have 2 cpus or 2 cores. As a person who has been building in parallel for a long time, I strongly disagree with a comment elsewhere in this thread about performance plummeting if overutilizing. > I'm continuing building using make > -j2, and haven't had any issues with it thus far; if I do discover > any, I'll be sure to post about it. For the record, the DIY Refbuild has had optional `make -jX' support for years. Although I implemented it in a slightly "sledgehammer" fashion by exporting MAKEFLAGS eg: export MAKEFLAGS="-j3" The gotcha with this approach is *ALL* invocations of `make' are affected, even those for `make install'. This can lead to some interesting failures. But it's easy enough to work around, just add `-j1' to the "known-to-fail" cases. Regards Greg -- http://www.diy-linux.org/ -- http://linuxfromscratch.org/mailman/listinfo/lfs-dev FAQ: http://www.linuxfromscratch.org/faq/ Unsubscribe: See the above information page
