On Thu, Feb 4, 2010 at 2:02 PM, Eric Sproul <[email protected]> wrote: > On 02/ 4/10 02:54 PM, William Yang wrote: >> We currently have an M4000 (8 cores SPARC64-VI 2.1 GHz, 2 threads per core) >> that we do our compiles on, and that's been able to compile almost as fast as >> the identical software on an 8 core Intel X5460. > > I should be so lucky. :) I think that's a *bit* out of my price range. > > Certainly sounds like some sort of parallel make is the way to go, though my > current build box has only 2 cores (the V210) so it's not likely to make a > difference there.
Many times setting the parallelism to a bit more than the number of cores is beneficial because you can have CPU-intensive things running while waing for I/O. That is, with "gmake -j2" you may get a 1.7x speedup and with "gmake -j 3" you may get a 2.1x speedup. Your experience will likely vary by the software you are building and the overall performance characteristics of the build machine. -- Mike Gerdts http://mgerdts.blogspot.com/ _______________________________________________ sysadmin-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/sysadmin-discuss
