Low-overhead components

[Vladimir Panteleev]

On Wednesday, 31 July 2013 at 08:04:35 UTC, Kagamin wrote:
> On Tuesday, 30 July 2013 at 16:48:42 UTC, Vladimir Panteleev 
> wrote:
>> In most cases, only one template instance will be "hot" at one 
>> time, so I don't think it would be a problem in general.
>
> You need to load templates from disk.

Loaded from a memory-mapped file, to be precise. Linkers can 
optimize the layout of your program to put rarely-used templates 
somewhere where they won't be loaded from the disk until they're 
needed. (Do you think a 500MB executable installer gets loaded 
into RAM entirely before it can run?) But it's not like there 
will be a thousand XML parser instantiations in the same program.

> I'm thinking about Adobe products, though I don't know why 
> they're so huge and why they start so slow.

I doubt it has anything to do with template bloat.

> Do you mean referring to the mixin doesn't include mixins 
> nested into it?

Why would you nest mixins? That's the worst of both worlds.