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@tuaris
Last active July 17, 2020 05:59
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Small C program to get total physical RAM in FreeBSD
#include <sys/types.h>
#include <sys/sysctl.h>
#include <stdio.h>
uint64_t
get_mem_size()
{
uint64_t memsize = -1;
size_t len = sizeof(memsize);
int name[] = {CTL_HW, HW_PHYSMEM};
sysctl(name, 2, &memsize, &len, NULL, 0);
return memsize;
}
int main()
{
uint64_t mem;
mem = get_mem_size();
printf("mem = %lu\n", mem);
return 0;
}
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tuaris commented Jul 17, 2020

Compile and run on FreeBSD

cc get_mem_size.c
./a.out

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