MEM_PBUFSIZE
char pbuf[MEM_PBUFSIZE];
humanize_number(pbuf, MEM_PBUFSIZE,
humanize_number(pbuf, MEM_PBUFSIZE,
format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)physmem));
format_bytes(pbuf, MEM_PBUFSIZE, ctob((uint64_t)uvm_availmem(false)));