Hi,

On Sat, 19 Jun 1999, Steffen Hansen wrote:

> On Sat, 19 Jun 1999 weis@stud.uni-frankfurt.de wrote:
> 
> > Hi,
> > 
> > Kay Roemer convinced my yesterday that I should try to strip mico
> > as good as possible to get a slim version. I was very sceptical
> > but here is what I did:
> > 
> > 1) I removed IR from mico and commented out every piece of code
> >    using it. A hell lot of work :-(
> 
> Isn't the IR used in KDE?

No.
We only need the IMR.

> > 2) Removed DynAny
> 
> What's that? Is it an Any that it's extraction code on the server-side?

It is the official interface to any. It is useless. We use the
mico specific interface currently which is much smarter.
 
> > 3) Removed all the SSL Stuff
> 
> Out with that ;-)
> 
> > 4) Removed the POA and its policy stuff
> 
> Argh. We use POA all over the place, and KOM uses BOA. We need both i
> think.

The POA is a bloat of around 500kB. I spoke with Kay and we had the
idea of writing an object adapter for KDE. So we can even drop BOA
perhaps. The KDE adapter would be a subset of POA I think.
But I did not think very much about that.
 
> > And here is what I got :-)
> > 
> > a) An ORB that compiles on a single PII400 in 3min,10secs!!!
> > b) [weis@teutates weis]$ ls -l /opt/mico/lib/libtinymico2.2.7.so
> >    -r-xr-xr-x   1 weis     users     1826776
> > 
> >    1.8MB !!!!!
> 
> Well, it's not exactly tiny, but still really good.

There is almost no room for further optimization. I think
we wont get under 1.5MB.
 
> > c) The size of the account example is 43kB instead of 100Kb now!
> 
> OK, that is because of ministl only?

Exactly.
But since tinymico doe not include so much stuff (ir/poa/dynany)
it compiles faster.
  
> > With the real STL I got 2.6 MB and 100kB accont example.
> > The rest of the optimization was done with mini-stl.
> > As you can see STL sucks !!!!!
> 
> Yes, it sucks big time. But ministl sucks for those who need a real stl.

But the reduce of bloat and the MUCH better compile time
are good argument, too.
 
> > .... who got almost no sleep this night ....
> 
> Oh, then you wont size-optimize the SGI STL today? ;-)

I wont ever. I looked at the code before hacking QTL. It sucks!

Bye
Torben
 
> greetings,
> -- 
> Steffen Hansen                            
> email: stefh@mip.sdu.dk, stefh@imada.sdu.dk, hansen@kde.org 
> URL:   http://www.mip.sdu.dk/~stefh       
> 
>