Re: mmap() versus read()

ralf@uni-koblenz.de
Mon, 9 Mar 1998 12:41:43 +0100


On Mon, Mar 09, 1998 at 05:53:16AM +1000, Russell Coker - mailing lists account wrote:

> Later versions of OS/2 have an attribute to specify that certain
> executables (DLLs that are of comparable usefulness to libc) get swapped out
> instead of having the code pages discarded and paged in from file. This
> apparently gives good performance gains.

UNIX has such an attribute as well, the sticky bit (chmod u+t ...). The
difference is just that it for entire executables. I think few of todays
machines actually honor it though all of them still have
the bit in the fs.

Ralf

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