//
// metric expressions

// all instances
// 
enet = network.interface.total.packets;

// restricted instance (loopback interface only)
// 
enet_r = network.interface.total.packets #lo0;

// restricted instances with weird instance names ...
// note instance names are "identifiers" in the grammar, so single
// quotes required for tricky characters, like /, spaces, etc, _not_
// double quotes
//
root_n_usr = filesys.free #'/dev/root' #'/dev/usr';

// multiple hosts
//
num_cpu = hinv.ncpu :babylon.engr.sgi.com :gonzo :sandpit;

// multiple sample times
//
mem_trend = mem.freemem @0..3;

// multi-dimension variations
//

// missing instance for non-singular instance domain, plus multiple hosts
//
net_view = network.interface.total.packets :gonzo :moomba;