[Mono-dev] [Patch] Make Boehm GC stack scanning less aggressive

[pablosantosluac at terra.es]

Unless you need to keep production code up and running... TODAY. ;-)

Rodrigo Kumpera wrote:
> Hi Dick,
> 
> I believe there is very little reason to do development on libgc as sgen
> is been worked and
> advancing quite fast. I don't feel it's worth the risk of improving libgc.
> 
> SGen is only a few months away from been production ready and it might
> be a better idea
> to spend your energy there. For example, Code to do precise marking of
> managed code is
> still to be done and is an area that help would be more than welcome.
> 
> 
> 
> 
> 
> On Tue, Oct 20, 2009 at 12:44 PM, Dick Porter
> <dporter at codicesoftware.com <mailto:dporter at codicesoftware.com>> wrote:
> 
>     Hi all
> 
>     The attached patch makes the stack marking in libgc much less
>     aggressive.  Instead of marking every object that happens to be pointed
>     to by random numbers, it uses the descriptor-based scanning function
>     instead.
> 
>     I think this is safe for mono, as (as was pointed out to me) every
>     allocation has a descriptor.
> 
>     It fixes the stress-test that David posted a week or two ago, and in the
>     real world it allows our server to free up much more memory.  It has
>     been tested on a production server.
> 
>     Comments?
> 
>     - Dick
> 
> 
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