[sldev] Optimization via _set_sbh_threshold

[Nicholaz Beresford]

Dirk,

> the small block heap is disabled as of win 2000 because of rewrites
> that started in 1999.
> See here: http://msdn2.microsoft.com/en-us/library/ms810466.aspx. It
> supposedly doesn't work in 64-bit mode either (not a big issue in SL
> for now).

Are you sure about that?  To me it seems to be a runtime library thing,
that was disabled with VS2003 (sbb_threshold starts with zero there) and
I'll be damned if that first result was coincidence or wishful thingking.

I just counted allocs during a session and 2.9 million of 3.0 million
allocs were 512 byes or less (with two of three million being 32 byes
or less).


Nick