umegaya

local serpent = require 'lib.serpent'

local b = {text="ha'ns", ['co\nl or']='bl"ue', str="\"\n'\\\000"}
local c = function() return 1 end
local d = {'sometable'}
local a = {
  x=1, [true] = {b}, [not true]=2, -- boolean as key
  ['true'] = 'some value', -- keyword as a key
  z = c, -- function as value
  list={'a',nil,nil, -- embedded nils

umegaya

--[[
t = setmetatable({x = "a"}, {
	__index = function (t, k)
		return setmetatable({x = k}, {
			__call = function (t, a1, ...)
				print(t, a1, t and t.x or "nil", a1 and a1.x or "nil")
			end,
		})
	end,
})

umegaya

テーマ

• 人々の創造性を最大限引き出し、増幅させる分散コンピューティング環境の開発

実現したい目標

• 分散コンピューティングをいままでよりもずっと自由に、簡単に行うことができるプログラミング環境を作ることで、人々の創造性を最大限引き出し、増幅させる

人々が創造性を発揮するには巨大なコンピューティング能力をもっと自在に操れることが必要

• 現代の創造性の発露はかなりの部分がネットワークを通じたサービスの提供を通じて行われるため

umegaya

environment

• aws m3.xlarge x 2 (client, server)
• para-virtual amazon linux (amzn-ami-pv-2014.03.rc-0.x86_64-ebs)
• running on docker container image

result

benchmark:
github.com/mathane/echoserver
./client -c50 -o16 -h2000 x 3

umegaya

- docker container vs VirtualBox vm
 - significant speed down on multithreading (vm does not have such an speed up (but not effective, through))
  - around 1/4 performance than single thread mode
 - compared with centos 6.5 vm, slower (but compared with centos 7 vm, its slightly faster)
 
- all (enough) CPU can be used from both (6CPU for VM, all CPU for container)

umegaya

-- package.path = ("../ffiex/?.lua;" .. package.path)
local ffi = require 'ffiex'
--ffi.__DEBUG_CDEF__ = true
local util = require 'pulpo.util'
local memory = require 'pulpo.memory'
local thread = require 'pulpo.thread'

thread.initialize({
	cdef_cache_dir = './tmp/cdefs'
})

umegaya

on VirtualBox CentOS 6.5 VM (6CPU/1024GB)

• compared with @mathane's echoservers
• and pulpo

result

# ./server_epoll
[iyatomi@microft echoserver]$ ./bench.sh
Throughput: 15860.09 [#/sec]

umegaya

## docker
bash-4.1# luajit test/poller.lua
listen:	4	0.0.0.0:8008
start	cdata<struct pulpo_poller *>: 0x006d9560
scscscscscscscscscscscscscscscscscscscsc
end	5.39	sec
bash-4.1# luajit test/poller.lua
listen:	4	0.0.0.0:8008
start	cdata<struct pulpo_poller *>: 0x01b1b7f0
scscscscscscscscscscscscscscscscscscscsc

umegaya

on macbook pro 2.3Ghz corei7 + 8gb 1600mhz DDR3

dokyoBook:pulpo dokyogames$ luajit-2.1.0-alpha test/poller.lua 
listen:	4	0.0.0.0:8008
start	cdata<struct pulpo_poller *>: 0x0181f600
scscscscscscscscscscscscscscscscscscscsc
end	1.983931	sec
success
dokyoBook:pulpo dokyogames$ luajit-2.1.0-alpha test/poller.lua 
listen:	4	0.0.0.0:8008

umegaya

sudo ARCHFLAGS=-Wno-error=unused-command-line-argument-hard-error-in-future gem install {gem}