On Tue, Jan 4, 2011 at 2:21 PM, Xan Lopez <x...@gnome.org> wrote: > > Without the local hack to get rid of the -MP flag a null-build with > that version of GNU make is ~40s. CVS HEAD gives ~26s (wow!), and CVS > HEAD with the "get rid of -MP" hack gives ~14s. So definitely there's > been a big improvement in Make in the last year, thanks for pointing > that out. It still seems worth to try to improve the -MP case though, > 26 > 14 is a big win.
One last data point. In the best case I've got so far (14s), time tells me: make 8.27s user 5.86s system 99% cpu 14.264 total If I'm right this means I've moved from having the vast majority of the time in user CPU time to a 60/40 split, which I guess means by now we are spending a lot of time stating files (?). Xan