benchmark/os_memory.hpp

Platform-specific peak-memory measurement for benchmarks. More...

Functions

	Name
size_t	GetCurrentMemoryMB()

Detailed Description

Platform-specific peak-memory measurement for benchmarks.

Date: 2026-06-18

Centralizes OS-specific memory APIs so benchmark source files contain zero #ifdef gates.

Functions Documentation

function GetCurrentMemoryMB

inline size_t GetCurrentMemoryMB()

Source code

#ifndef BENCH_OS_MEMORY_HPP
#define BENCH_OS_MEMORY_HPP

#include <cstddef>

#ifdef __APPLE__
#include <mach/mach.h>

inline size_t GetCurrentMemoryMB()
{
    struct mach_task_basic_info info;
    mach_msg_type_number_t count = MACH_TASK_BASIC_INFO_COUNT;
    if ( task_info( mach_task_self(), MACH_TASK_BASIC_INFO,
                    reinterpret_cast<task_info_t>( &info ), &count ) == KERN_SUCCESS )
    {
        return info.resident_size / ( 1024 * 1024 );
    }
    return 0;
}
#else
inline size_t GetCurrentMemoryMB()
{
    return 0;
}
#endif

#endif // BENCH_OS_MEMORY_HPP

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Updated on 2026-07-25 at 22:56:57 +0000