Re: [Boost-build] [v2] memory-problems on win32

From: Vladimir Prus (ghost_at_[hidden])
Date: 2006-04-07 02:29:05

On Wednesday 22 March 2006 17:11, Jürgen Hunold wrote:
> Hi !
>
> I'm encountering severe memory problems on win32.
>
> I've attached the results of running bjam (current anon CVS HEAD) from the
> same directory on linux and win32 with -d+10.
> The linux run eats up 272 Mb.
> The correspondung win32 run needs roughly 1.4 GB of memory (Note the
> overflow in the [TOTAL] column at the end of the memory dump.
> A quick scan of the win32 dump shows:
>
> 730730707   FILE_DIRSCAN

That's 700M for dirscan? We must be leaking something somewhere. 
Unfortunately, I looked at the code and don't see any apparent leaks so far. 
And my windows box is smoked so I can't try anything myself.

As a quick check, can you go to 'debug.h' and define PROFILE_ENTER and 
PROFILE_EXIT as empty and recompile, and try again. This way we'll be sure 
it's not profiling code itself that cause problems.

After that, I'd go to filent.c, function file_dirscan and wrap some parts of 
it in

 PROFILE_ENTER(FILE_DIRSCAN_PART1)
 PROFILE_EXIT(FILE_DIRSCAN_PART1)

and maybe this will give us the exact code block that leaks.

Sorry for being not very helpfull, I hope to install Windows on another box 
really soon now.

- Volodya

-- 
Vladimir Prus
http://vladimir_prus.blogspot.com
Boost.Build V2: http://boost.org/boost-build2