From:	alaric AT abwillms DOT demon DOT co DOT uk (Alaric B. Williams)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Virutal memory problems.
Date:	Mon, 21 Oct 1996 18:05:17 GMT
Lines:	27
Message-ID:	<845921032.28340.0@abwillms.demon.co.uk>
References:	<Pine DOT SUN DOT 3 DOT 91 DOT 961020074010 DOT 29425L-100000 AT is>
NNTP-Posting-Host:	abwillms.demon.co.uk
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

Eli Zaretskii <eliz AT is DOT elta DOT co DOT il> wrote:


>On Thu, 17 Oct 1996, Jon Slaughter wrote:

>Check out the method your program uses to allocate memory.  If it 
>allocates all the 18 MB at once, the DJGPP library allocation functions 
>round that up to the next power of 2, which means you ask for 32 MB.

How serious is that power-of-two waste - in that is it then free for
the next allocation to be taken from (ie if I then request 32-18 =
14Mb will it not 'allocate' any more), or is it really that bad?

If so, what's the point? Surely it's no slower to allocate to the
nearest word?

ABW
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Alaric B. Williams Internet : alaric AT abwillms DOT demon DOT co DOT uk
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