/* taken from coreutils sort */
static size_t default_sponge_size (void) {
/* Let MEM be available memory or 1/8 of total memory, whichever
is greater. */
double avail = physmem_available();
double total = physmem_total();
double mem = MAX(avail, total / 8);
struct rlimit rlimit;
/* Let SIZE be MEM, but no more than the maximum object size or
system resource limits. Avoid the MIN macro here, as it is not
quite right when only one argument is floating point. Don't
bother to check for values like RLIM_INFINITY since in practice
they are not much less than SIZE_MAX. */
size_t size = SIZE_MAX;
if (mem < size)
size = mem;
if (getrlimit(RLIMIT_DATA, &rlimit) == 0 && rlimit.rlim_cur < size)
size = rlimit.rlim_cur;
#ifdef RLIMIT_AS
if (getrlimit(RLIMIT_AS, &rlimit) == 0 && rlimit.rlim_cur < size)
size = rlimit.rlim_cur;
#endif
/* Leave a large safety margin for the above limits, as failure can
occur when they are exceeded. */
size /= 2;
#ifdef RLIMIT_RSS
/* Leave a 1/16 margin for RSS to leave room for code, stack, etc.
Exceeding RSS is not fatal, but can be quite slow. */
if (getrlimit(RLIMIT_RSS, &rlimit) == 0 && rlimit.rlim_cur / 16 * 15 < size)
size = rlimit.rlim_cur / 16 * 15;
#endif
/* Use no less than the minimum. */
return MAX (size, MIN_SPONGE_SIZE);
}
int
main (void)
{
printf ("%12.f %12.f\n", physmem_total (), physmem_available ());
exit (0);
}
