xCode 4.2如何检测程序在真机中的内存占用

转自：http://blog.csdn.net/mad2man/article/details/12911687

 #import <mach/mach.h>
    void report_memory(void) {
    struct task_basic_info info;
    mach_msg_type_number_t size = sizeof(info);
    kern_return_t kerr = task_info(mach_task_self(),
                                   TASK_BASIC_INFO,
                                   (task_info_t)&info,
                                   &size);
    if( kerr == KERN_SUCCESS ) {
      NSLog(@"Memory used: %u", info.resident_size); //in bytes
    } else {
      NSLog(@"Error: %s", mach_error_string(kerr));
    }
  }