2014/10/15 下午 10:05:44

iphone Programming Glossary: cpus

How to find available memory in iPhone programmatically?

http://stackoverflow.com/questions/1020327/how-to-find-available-memory-in-iphone-programmatically

is filled with a struct host_basic_info what looks like that struct host_basic_info integer_t max_cpus max number of CPUs possible integer_t avail_cpus number of CPUs now available natural_t memory_size size of memory in bytes capped at 2 GB.. looks like that struct host_basic_info integer_t max_cpus max number of CPUs possible integer_t avail_cpus number of CPUs now available natural_t memory_size size of memory in bytes capped at 2 GB cpu_type_t cpu_type cpu type cpu_subtype_t cpu_subtype.. cpu_subtype cpu subtype cpu_threadtype_t cpu_threadtype cpu threadtype integer_t physical_cpu number of physical CPUs now available integer_t physical_cpu_max max number of physical CPUs possible integer_t logical_cpu number of logical cpu..

Maximum speed from IOS/iPad/iPhone

http://stackoverflow.com/questions/11219240/maximum-speed-from-ios-ipad-iphone

app store. This means minimum iPhone will be 3GS . I think it is OK to drop older ones. Anyway older ones have slower CPUs and CPU intensive app provides bad user experience if installed on old device. Of course I use O3 flag I deleted dead code..

What's the difference between using CGFloat and float?

http://stackoverflow.com/questions/1264924/whats-the-difference-between-using-cgfloat-and-float

the modest time required to make your app 64 bit clean and try running it as such since most Macs now have 64 bit CPUs and Snow Leopard is fully 64 bit including the kernel and user applications. Apple's 64 bit Transition Guide for Cocoa is..

What's the difference between KERN_INVALID_ADDRESS and KERN_PROTECTION_FAILURE?

http://stackoverflow.com/questions/1282428/whats-the-difference-between-kern-invalid-address-and-kern-protection-failure

this question EXC_BAD_ACCESS SIGBUS KERN_PROTECTION_FAILURE means that the virtual address is obviously wrong most CPUs must access memory on a certain byte boundary. Because your data access here is aligned for a 64 bit value 8 it must be..

Can I access the App Store from within the iOS Simulator?

http://stackoverflow.com/questions/8137791/can-i-access-the-app-store-from-within-the-ios-simulator