On Tue, 2004-04-13 at 11:39, Christopher Ness wrote: > On Tue, 2004-04-13 at 11:23, jludwig wrote: > > One more item make -j # > /dev/null allows parallel compiling of > > components where # is the number of forks. I use about 1 per 64 meg > > allowing for overhead, and dumping messages also speeds the process and > > you still get warnings and errors.-- > > jludwig <wralphie@xxxxxxxxxxx> > > Nice tip! I never thought of redirecting STDOUT to the bit bucket to > gain a speedup while compiling. Classic Unix flavour too with "no news > is good news". > > For the threads, wouldn't you only see a speedup on SMP machines? Does > kernel compilation have a lot of HDD waiting where another thread can > jump in and use the CPU. > > I would think two, maybe three threads would be the max for a single CPU > machine after that the overhead of threading would kill any speedup. > But you suggest for my laptop -> 512/64 = 8 threads. How did you come > up with the 64M guideline? > > Sorry, lots of questions in there. :) > Chris The max size I have seen for a component compile was about 48 Megs. The only dumb question is the one not asked. -- jludwig <wralphie@xxxxxxxxxxx>
