Re: [Monotone-devel] projects using monotone?

[Zbynek Winkler]

Nathaniel Smith wrote:

> On Thu, Oct 20, 2005 at 11:12:57PM +0200, Zbynek Winkler wrote:
>  
>
> > 2) compilation time 
> > http://lists.gnu.org/archive/html/monotone-devel/2005-06/msg00136.html - 
> > this has improved mainly with gcc4.0 to the point that I am able to 
> > compile from source but it is still a major pain in the ... because any 
> > fixes I could try (or develop myself) take just to much time :(
> >    
> Yeah, this really is annoying.  Sorry about that.
>
> Maybe someone would be interested in looking at adding precompiled
> header support to the build system?  It's got some funky pitfalls:
>   http://gcc.gnu.org/onlinedocs/gcc-4.0.2/gcc/Precompiled-Headers.html
> but should be reasonably straightforward.  I don't know how much of a
> win it would be.  Anything that made builds faster would sure help...
>  
I did some testing. The best time for compiling automate.cc I got was 
somewhere around 38s (with hot cache, otherwise it is much worse). When 
precompiling all of the headers it uses, I was able to get that down to 
21s. However, precompiling only the boost headers yielded 23s. The 
precompiled header file is somewhere between 50-60MB so it seams that 
precompiling boost would be useful compromise because the same header 
can be used for compiling all files...

Zbynek

PS. I tested it by adding '-include preboost.h' to the command line 
after precompiling the attached header but don't know how to integrate 
such a thing to the build system.

--
http://zw.matfyz.cz/     http://robotika.cz/
Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic

#include <boost/bind.hpp>
#include <boost/config.hpp>
#include <boost/cstdlib.hpp>
#include <boost/date_time/gregorian/gregorian.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <boost/dynamic_bitset.hpp>
#include <boost/filesystem/convenience.hpp>
#include <boost/filesystem/exception.hpp>
#include <boost/filesystem/operations.hpp>
#include <boost/filesystem/path.hpp>
#include <boost/format.hpp>
#include <boost/function.hpp>
#include <boost/lexical_cast.hpp>
#include <boost/optional.hpp>
#include <boost/random.hpp>
#include <boost/regex.hpp>
#include <boost/scoped_array.hpp>
#include <boost/scoped_ptr.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/static_assert.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test_suite.hpp>
#include <boost/tokenizer.hpp>
#include <boost/tuple/tuple_comparison.hpp>
#include <boost/tuple/tuple.hpp>
#include <boost/version.hpp>
#include <boost/circular_buffer.hpp>