is there any simple way how i can monitor some linux command impact on server CPU?

I mean i have command:
cut -d . -f 1 /proc/loadavg
and im curious to see how much percent of cpu it takes?

example if i execute it like every 500 miliseconds if its effective and dont overload my VPS regarding CPU

Update: this can be used:
/usr/bin/time -v COMMAND_HERE
or simply: time COMMAND