[GC] Increased replenish threshold to 50%, in hopes of making arenas grow to larger sizes before stabilizing.
[GC] Increased replenish threshold to 50%, in hopes of making arenas grow to
larger sizes before stabilizing.

git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@42841 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot,ashgti/parrot