[Freeciv-Dev] Re: freeciv profile data

[Jason Short <jshort@xxxxxxxxxxxxxx>]

Per I. Mathisen wrote:
> On Sun, 19 Oct 2003, Jason Short wrote:
>
> > > I made a few profiles of current freeciv.
> ...
>
> > FYI, some of the biggest CPU consumers are:
> >
> > ai_manage_cities - 55% of execution time
> > military_advisor_choose_build - 27%
> > contemplate_new_city - 13%
> > ai_manage_units - 25% of execution time
> >
> > these are simple to profile since they're all called in just one place.
> > Together this is 80% of the server runtime.
> Not surprising, really. However, this info is useful:
>
> find_something_to_kill
> auto_arrange_workers
>
> both consume approx 20% of server's CPU time. Fewer calls to aaw should be
> possible, and fstk should be canned.
Most calls to auto_arrange_workers claim to be from ai_manage_city or 
ai_best_government.  I don't think these can be reduced.
But the recursive nature of the function is a bit confusing.  There is 
data for aaw <cycle 1> but no other aaw.  In theory it should recurse a 
fair amount, but only 5 calls are reported from update_city_tile_status.
The main culprit in aaw is of course the CM.  cm_query_result is 18%. 
It is called 1.06 times for every aaw call.
> Also, generic_city_refresh takes 6% CPU time, and could probably easily be
> improved by some inlining of its utility functions.
The main caller is real_fill_out_result.  Again CM.

jason