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Re: Aligned blocks management: obsolete?

From: Stefan Monnier
Subject: Re: Aligned blocks management: obsolete?
Date: Tue, 19 Jun 2012 17:34:57 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1.50 (gnu/linux)

> I believe this becomes more and more actual because more and more
> of ancient systems with poor malloc implementations falls into their
> graves; this cleanup assumes that every malloc implementation
> has reasonably efficient posix_memalign or memalign at least.

AFAIK, while posix_memalign might be useable in general, the old
memalign is not because it can't be free'd (it can with glibc's
memalign but not with all memaligns).

> Does the implementation of these in gmalloc.c satisfy the "reasonably
> efficient" requirement?  If not, platforms that use gmalloc.c will be
> in trouble.

I remember looking into it, back then, but I can't remember what I fount
out ;-)


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