src/os/bsd/vm/os_bsd.cpp

*** 155,167 ****
  
  julong os::available_memory() {
    return Bsd::available_memory();
  }
  
  julong os::Bsd::available_memory() {
!   // XXXBSD: this is just a stopgap implementation
!   return physical_memory() >> 2;
  }
  
  julong os::physical_memory() {
    return Bsd::physical_memory();
  }
--- 155,176 ----
  
  julong os::available_memory() {
    return Bsd::available_memory();
  }
  
+ // available here means free
  julong os::Bsd::available_memory() {
!   uint64_t available = physical_memory() >> 2;
! #ifdef __APPLE__
!   mach_msg_type_number_t count = HOST_VM_INFO64_COUNT;
!   vm_statistics64_data_t vmstat;
!   kern_return_t kerr = host_statistics64(mach_host_self(), HOST_VM_INFO64, (host_info64_t)&vmstat, &count);
!   if (kerr == KERN_SUCCESS) {
!     available = vmstat.free_count * os::vm_page_size();
!   }
! #endif
!   return available;
  }
  
  julong os::physical_memory() {
    return Bsd::physical_memory();
  }