lua benchmark

tiny_benchmark.lua

local function run(self, name, f)
  local start = os.clock()
  f()
  local now = os.clock()

  table.insert(self.result, { name=name, time=now-start })
end

local function report(self)
  local data = ''
  for i, rep in ipairs(self.result) do
    data = data..string.format('%-15s\t%8.6f', rep.name, rep.time)
    if i ~= #self.result then data = data..'\n' end
  end
  return data
end

return {
  new = function ()
    return {
      run = run,
      report = report,
      result = {},
    }
  end
}

usage.lua

local benchmark = require('tiny_benchmark')

local N = 1e8
bm = benchmark.new()

bm:run("stuff A", function ()
  for i=0, N do
    -- do stuff A
  end
end)
bm:run("stuff B", function ()
  for i=0, N do
    -- do stuff B
  end
end)

print(bm:report())