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Thanks Mike and Ivo. Vista allocator does seem acceptable. Running without the debugger attached as Ivo suggested reduced the first test to 26 seconds (from 3m20s) which is quite acceptable (fastmm is only a bit over twice the speed).

Learn something new everyday I guess. I wasn't aware that running with the debugger attached on a full release build would be any different to running it outside of an ide.

- Alex

----- Original Message ----- From: "Ivo Beltchev" <ivo@roadrunner.com>
To: "Lua list" <lua@bazar2.conectiva.com.br>
Sent: Thursday, May 01, 2008 12:11 AM
Subject: Re: Lua and custom memory allocators


Try running the application without the debugger attached (Ctrl+F5 instead of F5). I noticed that if the debugger is present the OS uses a slower version of the heap. The difference is noticeable on XP, but is significant on Vista. If you run without a debugger and then attach, all is well.

Ivo