> On Dec 9, 2015, at 3:36 PM, Rick Mann <rm...@latencyzero.com> wrote: > > >> On Dec 9, 2015, at 15:19 , Jens Alfke <j...@mooseyard.com> wrote: >> >> >>> On Dec 9, 2015, at 2:56 PM, Rick Mann <rm...@latencyzero.com> wrote: >>> >>> One of the WWDC videos stressed that iOS apps are given no more than 600 MB >>> of RAM. Our app is VERY RAM-intensive. >> >> Slightly off-topic, but I wonder if you could use mmap to give your app more >> address space? Create a big empty file, mmap it as writeable, then use a >> custom allocator to manage memory in the mapped space. >> >> (This doesn’t actually give you more RAM; the mapped address space will tend >> to get paged out to storage so it’ll definitely be slower than real RAM, but >> it’s better than crashing!) > > That's an interesting thought. We're also very compute intensive, so the > speed hit might obviate the advantages. Worth considering, though.
The virtual limit is 2GB on most devices right now, so you can use mmap() to go beyond the dirty limit. > > > -- > Rick Mann > rm...@latencyzero.com > > > > _______________________________________________ > > 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
