Memory not freed?

[Jerry Feldman]

There have been several hacks in varuious Unix virtual memory managers to 
speed up the loading of some executables, most specifically Unix commands, 
mainly because commands are small and executed qucikly. The URL I posted 
yesterday is a few years out of date, but provides a decent background. I 
also suggest looking at the mmap(2) system call as well as fork and vfork. 
When a program issues a fork(), logically, a duplicate is created, but in 
reality, both the text and data segments are shared.

Greg Galperin wrote:

> Ad Jerry says, many virtual memory systems do this kind of thing (I'd
> be surprised if Sun didn't, but I don't know for sure).
-- 
Jerry Feldman <gaf at blu.org>
Boston Linux and Unix user group
http://www.blu.org


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