Tom Lane writes:
> The Hermit Hacker <scrappy@hub.org> writes:
> > sendmail does it now, and, apparently relatively portable across OSs ...
>
> sendmail expects to be root. It's unlikely (and very undesirable) that
> postgres will be installed with adequate privileges to read /dev/kmem,
> which is what it'd take to run the sendmail loadaverage code on most
> platforms...
This program:
#include <stdio.h>
int main()
{ double la[3];
if (getloadavg(la, 3) == -1) perror("getloadavg");
printf("%f %f %f\n", la[0], la[1], la[2]);
return 0;
}
works unprivileged on Linux 2.2 and FreeBSD 4.3. Rumour[*] also has it
that there is a way to do this on Solaris and HP-UX 9. So I think that
covers enough users to be worthwhile.
[*] - Autoconf AC_FUNC_GETLOADAVG
--
Peter Eisentraut peter_e@gmx.net http://funkturm.homeip.net/~peter
