[opensource-dev] Mesh viewers and tcmalloc issues

[Armin Weatherwax]

> That define is really only used for some statics code in
> llallocator.cpp. It does
> not influence if tcmalloc is used or not.
its not clear where/why/when it is used - any code path includuing  tcmalloc 
on linux 32bit isn't compiled, though the viewer crashes if it isn't linked, 
which in my opinion at least needs a comment *that* just linking it makes a 
difference. Even better would be a comment with e.g. a link to furher 
information about *why* just linking it makes a difference.
For Linux 64bit not linking tcmalloc makes no difference (anything is aligned 
anyway, and I didn't see any difference in speed).

Armin