Re: CATiledLayer Memory Usage
On 24 May 2010, at 18:05, David Duncan wrote: > On May 22, 2010, at 9:44 AM, Milen Dzhumerov wrote: > > [snip] What problem are you trying to solve and how are you determining > memory usage? I was mainlu using CATiledLayer due to the restrictions of texture sizes on Leopard. Looks like those restrictions have been lifted in 10.6 and I can use a plain CALayer for a layer of arbitrary size (if I understand correctly) which solves my problem. Many thanks, Milen___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: CATiledLayer Memory Usage
On May 22, 2010, at 9:44 AM, Milen Dzhumerov wrote: > I've been writing some code that uses CATiledLayer and noticed that the > memory usage increased quite a bit - by a factor of 2, on average. Some > numbers that I've collected: > Normally Sized Window > - NS: 10mb; CA: 18.5mb > Maximized Window: > - NS: 23mb; CA: 45.7mb > > I tried playing with the tile size and it looks like it has no effect on the > memory usage. If I just used a normal CALayer, the memory consumption was > somewhere in-between - an increase of about 1.5 with respect to the NS > version. I just wanted to ask whether that's the expected behavior of > CATiledLayer and whether I should be following any tips to keep that usage > down as much as possible. CATiledLayer keeps a cache of the tiles that is has requested, and as such will likely use more memory over the short to medium term than a plain CALayer. If memory pressure gets high enough this cache should be flushed however. What problem are you trying to solve and how are you determining memory usage? -- David Duncan Apple DTS Animation and Printing ___ 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: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
