Aegisub/subprojects/luabins/etc/benchmark.lua

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-- This benchmark is compatible with luamarca benchmarking system
-- http://github.com/agladysh/luamarca
package.cpath = "./?.so;"..package.cpath
local luabins = require("luabins")
local table_concat = table.concat
local loadstring, assert = loadstring, assert
local pairs, type, tostring = pairs, type, tostring
local luabins_save, luabins_load = luabins.save, luabins.load
local lua = ([[return {
true, false, 42, "string",
[{
true, false, 42, "string",
[true] = true, [false] = false, [42] = 42, string = "string"
}] =
{
true, false, 42, "string",
[true] = true, [false] = false, [42] = 42, string = "string"
}
}]]):gsub("[%s\n]+", "") -- Remove spaces for compactness
local data = assert(loadstring(lua))()
local saved = assert(luabins_save(data))
-- Imagine we know exact data structure.
-- We still impose some overhead on table.concat() related
-- stuff, since it is more realistic scenario.
-- Still looks a bit silly.
local concat = function(data)
local buf = {}
local function cat(v) buf[#buf + 1] = tostring(v) return cat end
-- Find table key
local tablekey, tableval
for k, v in pairs(data) do
if type(k) == "table" then
tablekey, tableval = k, v
break
end
end
cat 'return{'
cat (data[1]) ','
cat (data[2]) ','
cat (data[3]) ','
cat '"' (data[4]) '",'
cat '[{'
cat (tablekey[1]) ','
cat (tablekey[2]) ','
cat (tablekey[3]) ','
cat '"' (tablekey[4]) '",'
cat '[' (true) ']=' (tablekey[true]) ','
cat '[' (false) ']=' (tablekey[false]) ','
cat '[' (42) ']=' (tablekey[42]) ','
cat 'string' '=' '"' (tablekey["string"]) '"'
cat '}]='
cat '{'
cat (tablekey[1]) ','
cat (tablekey[2]) ','
cat (tablekey[3]) ','
cat '"' (tablekey[4]) '",'
cat '[' (true) ']=' (tablekey[true]) ','
cat '[' (false) ']=' (tablekey[false]) ','
cat '[' (42) ']=' (tablekey[42]) ','
cat 'string' '=' '"' (tablekey["string"]) '"'
cat '}'
cat '}'
return table_concat(buf, '')
end
-- Sanity check
assert(concat(data) == lua)
local bench = {}
bench.concat = function()
assert(concat(data))
end
bench.loadstring = function()
assert(loadstring(lua))()
end
bench.luabins_save = function()
assert(luabins_save(data))
end
bench.luabins_load = function()
assert(luabins_load(saved))
end
return bench