allocate memory manually in SkLiteDL
Instead of growing at SkTDArray's chosen rate (+4, then *1.25),
grow in additive 4K pages. This is my attempt to make realloc()
have the best chance of not copying and to keep fragmentation down.
Because we use a freelist the rate we grow doesn't affect performance
too much.
I'm not getting very reliable numbers, but this looks maybe 5-10% faster
for recording, mainly I think from inlining the allocation fast path into
push().
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2231553002
Review-Url: https://codereview.chromium.org/2231553002
2 files changed