Looking for speed increases in "make index" and pkg_version for ports

[Roman Divacky]

On Mon, May 28, 2007 at 11:34:24AM -0500, Stephen Montgomery-Smith wrote:
> Jeremy Chadwick wrote:
> >On Sun, May 27, 2007 at 03:52:16PM -0500, Stephen Montgomery-Smith wrote:
> >> I have been thinking a lot about looking for speed increases for "make 
> >> index" and pkg_version and things like that.  So for example, in 
> >> pkg_version, it calls "make -V PKGNAME" for every installed package. Now 
> >> "make -V PKGNAME" should be a speedy operation, but the make has to load 
> >> in and analyze bsd.port.mk, a quite complicated file with about 200,000 
> >> characters in it, when all it is needing to do is to figure out the 
> >> value of the variable PKGNAME.
> >
> >I have a related question, pertaining to "make all-depends-list" and the
> >utter atrocity that is the make variable ALL-DEPENDS-LIST.  If you don't
> >know what it is, look for ^ALL-DEPENDS-LIST around line 5175, in
> >bsd.ports.mk.
> 
> I posted this to ports at freebsd.org, but now I am realizing that it is 
> hackers at freebsd.org that gets more responses.  Anyway, here is a 
> multithreaded program "all-depends-list" that can get you double the 
> speed on dual processor systems, and even some small speed gains on 
> single processor systems.  E.g.
> 
> all-depends-list /usr/ports/x11/xorg
> 
> http://www.math.missouri.edu/~stephen/all-depends-list.c

btw.. stehpen, when are you getting a commit bit? :) I certainly hope that soon enough ;)

roman