> On Jun 28, 2015, at 11:35 PM, Henrik Granaas-Helmers <helm...@me.com> wrote: > > Hi there, > > I am new to Apple development, and new to this list. I have two questions > about memory on OS X. > > 1. NSUserDefaults seems to allocate 16 MB memory at load. I can't see myself > using a megabyte—let alone 16 of those. It would be very interesting to know > why it allocates so much, and if there is a way to encourage NSUserDefaults > to grab less. > > 2. I create a couple of CoreAnimation layers that I think are large > (5120x2880 px). I would expect that to occupy 450 MB (5120*2880*32/1024/1024) > of memory. But instead it only takes up one fourth of that. What is this > sorcery?
You forgot to divide by 8 (you’re counting mega-bits, not mega-bytes). > > > -- > Henrik Granaas-Helmers > _______________________________________________ > > Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) > > Please do not post admin requests or moderator comments to the list. > Contact the moderators at cocoa-dev-admins(at)lists.apple.com > > Help/Unsubscribe/Update your Subscription: > https://lists.apple.com/mailman/options/cocoa-dev/david.duncan%40apple.com > > This email sent to david.dun...@apple.com -- David Duncan _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
