bugGnash - The GNU Flash player - Bugs: bug #22488, GC performance issue with physic...

 
 

bug #22488: GC performance issue with physic simulation

Submitter:  Sandro Santilli <strk>
Submitted:  Wed 05 Mar 2008 10:04:01 AM UTC
   
 
Category:  core Severity:  3 - Normal
Release:  None Status:  Fixed
Privacy:  Public Assigned to:  None
Open/Closed:  Closed
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Tue 28 Sep 2010 10:20:42 AM UTC, comment #3: 

It works okay, not really a bug.

Benjamin Wolsey <bwy>
Group Member
Thu 06 Mar 2008 08:33:23 PM UTC, comment #2: 

After recent changes GC is not the bottleneck anymore,
altought this movie allocates a lot of temporary objects,
which are only deleted on next GC run.

property names lookup seems it now..

Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total
 time   seconds   seconds    calls  ms/call  ms/call  name
  5.10      1.79     1.79 42837330     0.00     0.00  gnash::iterator_find(boost::multi_index::multi_index_container<gnash::Property, boost::multi_index::indexed_by<boost::multi_index::ordered_unique<boost::multi_index::composite_key<gnash::Property, boost::multi_index::member<gnash::Property, unsigned int, &(gnash::Property::mName)>, boost::multi_index::member<gnash::Property, unsigned int, &(gnash::Property::mNamespace)>, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, mpl_::na, mpl_::na>, boost::multi_index::ordered_unique<boost::multi_index::tag<gnash::PropertyList::oType, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<gnash::Property, int, &(gnash::Property::mOrderId)>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<gnash::Property> >&, unsigned int, unsigned int)
  4.39      3.33     1.54 15945070     0.00     0.00  gnash::string_table::find(std::string const&, bool)
  2.85      4.33     1.00 16286053     0.00     0.00  agg::rasterizer_cells_aa<agg::cell_style_aa>::line(int, int, int, int)
  2.17      5.09     0.76   865405     0.00     0.00  gnash::ActionExec::operator()()

Sandro Santilli <strk>
Group Member
Wed 05 Mar 2008 10:27:01 AM UTC, comment #1: 

Garbage collector is the bottleneck..

Flat profile:

Each sample counts as 0.01 seconds.
  %   cumulative   self              self     total          
 time   seconds   seconds    calls   s/call   s/call  name   
 10.53      0.18     0.18       51     0.00     0.01  gnash::GC::collect()
  7.60      0.31     0.13   882765     0.00     0.00  gnash::PropertyList::setReachable() const
  5.26      0.40     0.09  1130813     0.00     0.00  gnash::PropertyList::getProperty(unsigned int, unsigned int)
  4.09      0.47     0.07   777364     0.00     0.00  gnash::string_table::find(std::string const&, bool)
  4.09      0.54     0.07       49     0.00     0.00  gnash::GC::cleanUnreachable()
  4.09      0.61     0.07  2400970     0.00     0.00  gnash::Property::setReachable() const

Sandro Santilli <strk>
Group Member
Wed 05 Mar 2008 10:04:01 AM UTC, original submission:  

http://www.upscale.utoronto.ca/GeneralInterest/Harrison/Flash/EM/LightWave/Wave.html

"An electric charge is executing simple harmonic motion, and the animation shows the electric field lines around it. Requires Flash 6 and a computer with reasonable power; file size is 40k."

Sandro Santilli <strk>
Group Member

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

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   task dependencies.

Items that depend on this one: None found

 

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    Follow 6 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2010-09-28 bwy Open/ClosedOpen Closed
    2010-09-28 bwy StatusNone Fixed
    2008-03-05 strk Dependencies- Depends on task #7831
    2008-03-05 strk CategoryActionScript core
        Summaryhigh cpu usage with physic simulation GC performance issue with physic simulation
    2008-03-05 strk CategoryNone ActionScript

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