Re: IMPORT_MODULE proposal

From: David Abrahams (gclbb-jamboost_at_[hidden])
Date: 2003-08-01 11:45:53

Vladimir Prus <ghost_at_[hidden]> writes:

> David Abrahams wrote:
>> Vladimir Prus <ghost_at_[hidden]> writes:
>> > Hmm... the net time for this rule alone is 1second. Pretty high.
>>
>> Does that make it worthwhile to optimize? 
>
> IMO, yes.
>
>> Is that a significant percentage of the total?
>
> The problem is that there's no single rule which takes 50% of the running 
> time. It's a bunch of rules which take too much time, which, in total, makes 
> V2 slow. 

OK. I've had success chipping away at 1% slownesses, but it's
tedious. It would be nice to find some big wins.

> Concerning this rule: it's some internal bookkeeping that V2 does and yet it 
> takes 1 second on a pretty fast machine. Seems a good candidate for 
> optimization. Or do you have other ideas?

Nope.
-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com