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David Dyer-Bennet  
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 More options Apr 23 2012, 3:32 pm
Newsgroups: comp.unix.misc, alt.folklore.computers
From: David Dyer-Bennet <d...@dd-b.net>
Date: Mon, 23 Apr 2012 14:32:24 -0500
Local: Mon, Apr 23 2012 3:32 pm
Subject: Re: which one came first
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j...@panix.com (Joe keane) writes:
> [Unix] shared memory or memory-mapped files

> Pretty much everyone has both these days (different interface to common
> function).  What systems supported one but not the other?

> Also when did people get the idea to implement 'malloc' in terms of
> 'mmap' rather than [somewhat awkward] 'sbrk'?

> (feel free to comment on other operating systems)

TOPS-20 had memory-mapped files as the preferred form of IO. I never
wrote for TENEX so I can't confirm it goes back that far from personal
knowledge.
--
David Dyer-Bennet, d...@dd-b.net; http://dd-b.net/
Snapshots: http://dd-b.net/dd-b/SnapshotAlbum/data/
Photos: http://dd-b.net/photography/gallery/
Dragaera: http://dragaera.info

 
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