Why?

[Walter Bright]

On 4/5/2024 5:20 PM, Adam Wilson wrote:
> Now ... to convince Walter that loading the whole archive into RAM once will be 
> better than mem-mapping...
> 
> RAM is cheap and source code is not a big memory hit.

There's a switch in the source code to read it all at once or use memory 
mapping, so I could benchmark which is faster.

There's no significant difference, probably because the files weren't large enough.

BTW, I recall that executable files are not read into memory and then jumped to. 
They are memory-mapped files, this is so the executable can start up much 
faster. Pieces of the executable are loaded in on demand, although the OS will 
speculatively load in pieces, too.