Timing error after long pre-processing

[mlange]

Works well with measuring time elapsed. The demonstrate by extending the example, it can be done like this:

start = Time.now
for i in range(0, 10000000)
  x = 1 / 100.0
end
duration = Time.now - start

live_loop :tick, delay: duration + 0.5 do
  sample :elec_plip, rate: 2
  sleep 1
end