Check the growth of the old generation before expanding the paged...

Check the growth of the old generation before expanding the paged
spaces (during normal allocation) and when allocating large objects.
If the promotion limit is reached, fail allocation to trigger a
garbage collection.

Committed: http://code.google.com/p/v8/source/detail?r=632

[Kevin Millikin (Chromium), 2008-10-28 13:36:48]

I'm running it paa robotten to see if there's any performance impact.

[bak, 2008-10-29 07:39:30]

Hi Kevin

I think we need a different limit for triggering 
GC when too much data has been allocated directly
into old space. I assume large object space is the 
biggest problem.
I suggest using:
   old_allocation_limit = max(min, fraction of old space)
Try min = 8mb and fraction = 30%.

Regards,
  Lars

[Kevin Millikin (Chromium), 2008-10-29 09:07:54]

New policy, avoids hitting bad case on benchmarks.  Take a look?

[bak, 2008-10-29 09:24:46]

LGTM,
  Lars