Mastodawn

I thought the following codes will trigger OOM on iOS, but not.

@Proteas you never trigger CoW?

@siguza yeah, copy slowly.

@Proteas @siguza replace the 0xff pattern with non repeating 32bit words.

@Proteas @siguza for example prepare a 16k random filled content. And blast that for each page.

@madcoder thanks, will try. seems memory compression is really useful.

@Proteas precisely :)