Hi Tom,

1) As implementing FASTOPEN would be a nontrivial task,

Indeed.

I suggest to find a use case where having FASTOPEN or
not (on a MSDOS machine) makes a noticable difference.

Good idea. I assume some of us still have MS DOS installed.

of course you can also measure the time (for this use case)
used by FileOpen().

2) > 
https://github.com/microsoft/MS-DOS/blob/2d04cacc5322951f187bb17e017c12920ac8ebe2/v4.0/src/CMD/FASTOPEN/FASTOPEN.TXT

mentions 'current database systems'.
I don't think we have many 'current database systems'
executing on top of FreeDOS.

Well, that is not a popular use case in 2024, I think,
but people can use SQLITE or the DOS version of the
free Clipper alternative xHarbour if they want to:

http://www.xharbour.org/index.asp?page=download/dos/binaries_dos

However, I have another idea where FASTOPEN could be quite
useful: Think about many files in many directories and you
end up thinking about compiling larger sources with one of
those modern compilers people now use in DOS?

Regards, Eric




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