thread aware malloc

[David Xu]

Niall Douglas wrote:

>I've already ported ptmalloc2 to FreeBSD. The performance increase is 
>steller to put it mildly, even with FreeBSD's poor multithreading 
>performance. You're talking ten or more times faster in heavily 
>multithreaded code :)
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Poor multithreading performance? I don't know what library you are
talking about.
I admit that malloc/free is the main bottleneck in userland, a SMP-aware
and CPU locality allocator is welcome.

>http://www.nedprod.com/programs/Win32/ptmalloc2/index.html
>
>All it requires is someone to merge it with FreeBSD's libc. The 
>licence is LGPL but the original ptmalloc2 is BSD-like. You almost 
>certainly could replicate the glibc changes and thus maintain the BSD 
>license in very little time.
>
>Cheers,
>Niall
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