Why?

[ryuukk_]

On Tuesday, 9 April 2024 at 17:18:02 UTC, Walter Bright wrote:
> 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.

Who managed to convince you to spend time working on this?

The solution to poor phobos build time is to stop abusing 
templates for code that doesn't exist for problems that nobody 
have

https://github.com/dlang/phobos/tree/master/phobos/sys