Re: [jamboost] Re: [BBv2] sorted property lists

From: Vladimir Prus (ghost_at_[hidden])
Date: 2004-01-30 09:59:24

Vladimir Prus wrote:

> I don't think that will help. The issue is that if we decide that
>
> <foo>xxx <foo>yyy
>
> and
>
> <foo>yyy <foo>xxx
>
> are different for all 'foo', then we have to create much more property-set
> instances that we do now. If we decide they are difference only of 'foo' is
> 'order-sensitive' feature, we have to create more property sets, but not as
> much. The question is if there's real performance effect.

Okay, first measurements. With CVS state "bjam -n" takes 5 seconds on some 
project. If I don't sort properties, it takes 11 seconds and crashes later 
with "Duplicate name of actual target" error.

Looks like this is not good alternative. I'll look into making specific 
properties order-sensitive.

- Volodya