Re: [RFC PATCH 3/3] mm/map_contig: Add mmap(MAP_CONTIG) support

On Mon 16-10-17 11:02:24, Cristopher Lameter wrote:

On Mon, 16 Oct 2017, Michal Hocko wrote:

quoted

quoted

So I mmap(MAP_CONTIG) 1GB working of working memory, prefer some data
structures there, maybe recieve from network, then decide to write
some and not write some other.

Why would you want this?

Because we are receiving a 1GB block of data and then wan to write it to
disk. Maybe we want to modify things a bit and may not write all that we
received.

 
And why do you need that in a single contiguous numbers? If performance,
do you have any numbers that would clearly tell the difference?

-- 
Michal Hocko
SUSE Labs

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