Re: Free Space Map data structure

On Wed, 2008-04-09 at 21:09 +0300, Heikki Linnakangas wrote:
> Hannu Krosing wrote:
> > Saving 1 byte is an atomic op
> 
> Unfortunately, it's not. Most if not all modern CPUs will perform one 
> byte modification as "load word" + "modify word" + "save word".

Hmm, maybe we I should change my design to modify page free info and its
parent together ? 

or what is word ? 2 bytes ? 4 bytes ? even 8 bytes ?

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Hannu