Lothar Scholz wrote:

>Hello Bill,
>
>
>BK> I haven't tried it yet - and I'd also be interested to
>BK> learn more about any "drop in replacements" that Lothar
>BK> hinted at.
>
>For example take this one
>http://www.nedprod.com/programs/Win32/ptmalloc2/index.html
>
>
>
>  
>
Oh my! That's ptmalloc on Windows, isn't it?! That little thing 
seriously rocks in multi-threaded systems with a lot of dynamic memory 
allocation. It can resolve nasty scalability bottlenecks there by 
getting rid of a mutex in malloc/free.

Not sure if it will do much good for Ruby though - Ruby threads are 
green, not native.

If you get some results, please share with the list.

Best regards,
Alexey Verkhovsky