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