$sysctl vm.
vm.loadavg: { 1.16 0.77 0.39 }
vm.cs_debug: 0
vm.cs_force_hard: 0
vm.cs_force_kill: 0
vm.shared_region_trace_level: 1
vm.loadavg: 1.16 0.77 0.39
vm.swapusage: total = 64.00M  used = 0.00M  free = 64.00M  
host*:~ 8084$ sysctl vm.swapusage
host*:~ 8084$