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memory usage
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$ nodejs --version && lua -v && luajit -v | |
v0.10.28 | |
Lua 5.2.3 Copyright (C) 1994-2013 Lua.org, PUC-Rio | |
LuaJIT 2.0.3 -- Copyright (C) 2005-2014 Mike Pall. http://luajit.org/ | |
$ nodejs --expose-gc test.js && lua test.lua && luajit test.lua | |
---- | |
nodejs | |
---- | |
1804856 | |
255285256 | |
177807656 | |
--- | |
lua | |
--- | |
24214 | |
100687638 | |
16799614 | |
--- | |
luajit | |
--- | |
28069 | |
58749005 | |
4221265 |
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console.log("----"); | |
console.log(process.argv[0]); | |
console.log("----"); | |
global.gc(); | |
console.log(process.memoryUsage().heapUsed); | |
var BIGNUM = Math.pow(2,20); | |
var a = []; | |
var b = {}; | |
for (_i = 0; _i < BIGNUM; ++_i) { | |
(function(i) { | |
a[i] = function(v) { | |
return { v : i } | |
} | |
}(_i)); | |
} | |
global.gc(); | |
console.log(process.memoryUsage().heapUsed); | |
for (i = 0; i < BIGNUM; ++i) { | |
var key = "KEYOF" + i; | |
var tmp = a[i](key); | |
b[key] = tmp[key]; | |
} | |
a = undefined; | |
global.gc(); | |
console.log(process.memoryUsage().heapUsed); |
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print("---") | |
print(arg[-1]) | |
print("---") | |
collectgarbage 'collect' | |
print(1024 * collectgarbage 'count') | |
local BIGNUM = math.pow(2,20) | |
local a, b = {}, {} | |
for i=1, BIGNUM do | |
a[i] = function(v) | |
return { v = i } | |
end | |
end | |
collectgarbage 'collect' | |
print(1024 * collectgarbage 'count') | |
for i, f in ipairs(a) do | |
local key = "KEYOF" .. tostring(i) | |
local tmp = f(key) | |
b[key] = tmp[key] | |
end | |
a = nil | |
collectgarbage 'collect' | |
print(1024 * collectgarbage 'count') |
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