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<rdar://problem/14281898> 

Much faster way to get dirty size.

llvm-svn: 185033
This commit is contained in:
Han Ming Ong 2013-06-26 22:52:37 +00:00
parent b8c608ea39
commit b4e1d4c630
1 changed files with 18 additions and 0 deletions
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18
lldb/tools/debugserver/source/MacOSX/MachVMMemory.cpp
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@ -235,6 +235,22 @@ static uint64_t GetPhysicalMemory()
void
MachVMMemory::GetRegionSizes(task_t task, mach_vm_size_t &rsize, mach_vm_size_t &dirty_size)
{
#if defined (TASK_VM_INFO) && TASK_VM_INFO >= 22
task_vm_info_data_t vm_info;
mach_msg_type_number_t info_count;
kern_return_t kr;
info_count = TASK_VM_INFO_COUNT;
#ifdef TASK_VM_INFO_PURGEABLE
kr = task_info(task, TASK_VM_INFO_PURGEABLE, (task_info_t)&vm_info, &info_count);
#else
kr = task_info(task, TASK_VM_INFO, (task_info_t)&vm_info, &info_count);
#endif
if (kr == KERN_SUCCESS)
dirty_size = vm_info.internal;
#else
mach_vm_address_t address = 0;
mach_vm_size_t size;
kern_return_t err = 0;
@ -285,6 +301,8 @@ MachVMMemory::GetRegionSizes(task_t task, mach_vm_size_t &rsize, mach_vm_size_t
vm_size_t pagesize = PageSize (task);
rsize = pages_resident * pagesize;
dirty_size = pages_dirtied * pagesize;
#endif
}
// Test whether the virtual address is within the architecture's shared region.