I might be going the wrong direction of "micro" here but time is the very minimal, tiny, and traditional unix way.

For example:

$ time curl https://lemmy.ca/post/61453347 > /dev/null
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  175k    0  175k    0     0   525k      0 --:--:-- --:--:-- --:--:--  526k

real    0m0.343s
user    0m0.030s
sys     0m0.016s

There are also a large number of other profiling outputs you can ask time to spit out by passing it the appropriate command line flags.