Re: MrProject 0.8pre released

Le Fri, Dec 20, 2002 at 08:40:24PM +0100, Richard Hult:
> 
> Hi all,
> 
> I've just released a test version of MrProject. There is a lot of new
> features and code in this one, so I wanted to do a "pre-release" version
> before the real 0.8. We would very much appreciate any feedback and bug
> reports on this one. As you know, http://bugzilla.codefactory.se/ is the
> place to go.

This seems to be working well here (no crash at that time), but I'm
a bit in trouble. There is a point that is missing for my use, and
so I try to write the necessary stuff as a CGI script:
- I'd like to know if the same resource is used twice at a given
  time
- I'd like to see a time-table for each resource (people, here)
  involved in the project.

To implement this, I write a small C program that will be used as
a CGI script to display the time-tables. But it's really slow. A
quick "gprof" on the resulting program show that some function are
called approx. half a million time for a relatively small project:

 11.36      0.10     0.10   470198     0.00     0.00 mrp_calendar_get_type
 11.36      0.20     0.10    89082     0.00     0.00 mrp_calendar_get_day
 11.36      0.30     0.10    48773     0.00     0.01 task_manager_get_task_rate_intervals
  7.95      0.37     0.07   183099     0.00     0.00 mrp_time_to_tm
  7.95      0.44     0.07    89082     0.00     0.00 mrp_calendar_day_get_intervals
  5.68      0.49     0.05     3995     0.01     0.14 task_manager_get_task_duration
  4.55      0.53     0.04    89082     0.00     0.00 calendar_get_day
  3.41      0.56     0.03   199889     0.00     0.00 mrp_interval_get_absolute
  3.41      0.59     0.03    94023     0.00     0.00 mrp_time_from_tm
  3.41      0.62     0.03    94023     0.00     0.00 time_set_tz_utc
  3.41      0.65     0.03    49767     0.00     0.00 mrp_task_get_assignments
  2.27      0.67     0.02   142332     0.00     0.00 rate_interval_new
  2.27      0.69     0.02    94023     0.00     0.00 time_reset_tz
  2.27      0.71     0.02    94017     0.00     0.00 mrp_time_align_day
  2.27      0.73     0.02    89082     0.00     0.00 calendar_get_default_day
  2.27      0.75     0.02    89082     0.00     0.00 mrp_time_day_of_week
  1.14      0.76     0.01   275418     0.00     0.00 mrp_task_get_type
  1.14      0.77     0.01    59330     0.00     0.00 mrp_project_get_type
  1.14      0.78     0.01    28797     0.00     0.00 imrp_task_peek_predecessors
  1.14      0.79     0.01    23033     0.00     0.00 mrp_relation_get_type
  1.14      0.80     0.01    20975     0.00     0.00 mrp_task_get_finish
  1.14      0.81     0.01    11917     0.00     0.00 mrp_resource_get_type
  1.14      0.82     0.01     8925     0.00     0.00 task_manager_get_task_start
  1.14      0.83     0.01     3995     0.00     0.00 imrp_task_set_duration
  1.14      0.84     0.01     2750     0.00     0.00 mrp_task_get_latest_start
  1.14      0.85     0.01     1020     0.01     0.25 mrp_task_manager_get_task_work
  1.14      0.86     0.01      594     0.02     0.02 imrp_project_set_needs_saving
  1.14      0.87     0.01       85     0.12     9.90 task_manager_do_forward_pass
  1.14      0.88     0.01                            task_manager_traverse_cb

Would it be possible to have a kind of cache mechanism to speed up
things? Maybe making functions like mrp_calendar_get_type #define's
and creating a __mrp_calendar_get_type which is the real stuff to use
is cache is empty or outdated?

To total time to load the project is about 5s. which is a lot for a
CGI script, even if it's no trouble for MrProject...

Regards,

	Benjamin.