Re: [Mingw-users] Out of memory for cc1plus

[K. F. <kfr...@gm...>]

Hello All!

This may not be relevant, but I may have seen a similar memory
issue with mingw-w64 (a project distinct from mingw).

On Wed, Dec 24, 2014 at 10:27 PM, Edward Diener <eld...@tr...> wrote:
> On 12/24/2014 9:13 PM, asmwarrior wrote:
>> On 2014-12-25 9:31, Edward Diener wrote:
>>> I could report this on the gcc bugzilla tracker but reproducing it using
>>> my VMD library, although it is public on Github, will be fairly
>>> complicated task ( the latest modular Boost must also be downloaded and
>>> setup from Github ) for whomever handles the bug. I was hoping this sort
>>> of problem, based on what seems to me to be a large-scale memory leak,
>>> would be known for these later versions of gcc and I could find a
>>> workaround.
>> ...

I had what appeared to be an out-of-memory issue with a 64-bit
mingw-w64 build of gcc 4.9.2 when building Wt.

The Wt build failed when compiling Wt's CssParser.C.  This was
on a 4 GB machine.  I killed off some unnecessary processes
and restarted the build.  It succeeded, but it looks like compiling
CssParser.C took about 2 GB.

I wrote this off as "normal," even though it seems very large, because
CssParser.C uses the boost spirit template-metaprogramming parser
generator, and I presumed that the template-metaprogramming was
the source of the memory consumption.

But maybe this reflects a problem in gcc, and not the memory needs
of compiling Wt / boost.

Note, I only tried this with gcc 4.9.2.  I have know idea whether I would
have seen similarly large memory usage with an earlier gcc such as 4.7.


Best.


K. Frank