get_total_process_memory()

static xtd::size xtd::memory_information::get_total_process_memory ( )

staticnoexcept

Gets the the total physical memory in bytes.

Returns

The total process memory value.

Examples

The following example shows how to retrieve some information about the memory.

#include <xtd/console>
#include <xtd/memory_information>
 
using namespace xtd;
 
auto main() -> int {
  console::write_line("Physical memory");
  console::write_line("  total = {,12} ({,3} GB)", memory_information::get_total_physical_memory(), memory_information::get_total_physical_memory() / 1024 / 1024 / 1024);
  console::write_line("  used  = {,12} ({,3} GB)", memory_information::get_used_physical_memory(), memory_information::get_used_physical_memory() / 1024 / 1024 / 1024);
  console::write_line("  free  = {,12} ({,3} GB)", memory_information::get_free_physical_memory(), memory_information::get_free_physical_memory() / 1024 / 1024 / 1024);
  console::write_line();
  
  console::write_line("Virtual memory");
  console::write_line("  total = {,12} ({,3} GB)", memory_information::get_total_virtual_memory(), memory_information::get_total_virtual_memory() / 1024 / 1024 / 1024);
  console::write_line("  used  = {,12} ({,3} GB)", memory_information::get_used_virtual_memory(), memory_information::get_used_virtual_memory() / 1024 / 1024 / 1024);
  console::write_line("  free  = {,12} ({,3} GB)", memory_information::get_free_virtual_memory(), memory_information::get_free_virtual_memory() / 1024 / 1024 / 1024);
  console::write_line();
  
  console::write_line("Process memory");
  console::write_line("  total = {,12} ({,3} GB)", memory_information::get_total_process_memory(), memory_information::get_total_process_memory() / 1024 / 1024 / 1024);
  console::write_line("  used  = {,12} ({,3} MB)", memory_information::get_used_process_memory(), memory_information::get_used_process_memory() / 1024 / 1024);
  console::write_line("  free  = {,12} ({,3} GB)", memory_information::get_free_process_memory(), memory_information::get_free_process_memory() / 1024 / 1024 / 1024);
}
 
// This code can produce the following output :
//
// Physical memory
//   total =  34359738368 ( 32 GB)
//   used  =  18914050048 ( 17 GB)
//   free  =  15445688320 ( 14 GB)
//
// Virtual memory
//   total = 600992124928 (559 GB)
//   used  = 420945264640 (392 GB)
//   free  = 180046860288 (167 GB)
//
// Process memory
//   total = 180046860288 (167 GB)
//   used  =     40550400 ( 38 MB)
//   free  = 180006309888 (167 GB)

Remarks

There is no strict predefined limit on the amount of memory an individual process can use

Some OS allow you to set resource usage limits for processes using the ulimit command. For example, a user or system administrator can set a memory limit for a particular process.

If the user has specified a limit, then the total memory will be equal to this limit; otherwise it will be equal to xtd::memory_information::get_free_virtual_memory.