Re: Removing xrdb for 10% startup win?

[Lorenzo Colitti <lorenzo colitti com>]

Alexander Larsson wrote:
> > So, as Owen says, most of the time is spent just reading the cc1
> > binary into memory. I have no idea why it's reading around all over
> > the place instead of performing one big sequential read of the whole
> > file though.
>
> My guess is that it just maps the whole executable on start, and then
> demand loads pages as they are needed (i.e. on page faults).

Yes, I suppose you're right! Thanks for enlightening me.

However, that's not the most efficient way to load *anything* if you 
know you're going to need the whole file. I see this happening with 
shared libraries a lot.

But surely someone has thought of this before?


Cheers,
Lorenzo