GC statistics (was Re: big project ported)

[Anthony Green]

Tom wrote:
> This is a shot in the dark but would it be possible to reduce the work
> the garbage collector has to do by allocating temporary objects that
> live within the scope of a method call on the stack?  It'd be
> interesting to see some statistics on what percentage of objects
> created in a typical Java program are temporary objects.  I'd suspect
> its pretty high.

This paper talks about stack allocation of Java objects:

    http://www.cse.ucsc.edu/research/embedded/pubs/gc/index.html

Their finding:

  The percentage of objects that could have been allocated on a stack
  instead of on the heap ranged from zero to possibly as high as 56%,
  but were generally in the 5-15% range.

AG

-- 
Anthony Green                                               Cygnus Solutions
                                                       Sunnyvale, California