improving malloc

[Ondřej Bílka]

On Sat, Jan 05, 2013 at 10:02:42AM +0100, Ondřej Bílka wrote:
> 
> As malloc is concerned I have several ideas how to improve it. For
> simplicity I will consider only 64bit system here.

I moved suggestions into from main into separate page as it looks 
it will be long list.
http://sourceware.org/glibc/wiki/Development_Todo/Enhancing_malloc

As paging is concerned there is another possible improvement.

When fork done then pages in malloc cache are copy-on-write which is 
unnecessary. A possible solution is to call malloc_trim(0) in atfork 
handler.

Separate question is how it is profitable as fork is typically followed 
by exec.