Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
PyCon2014China-Zhuhai-bpm.py
Search
Zoom.Quiet
November 17, 2014
Technology
0
82
PyCon2014China-Zhuhai-bpm.py
141115 in Zhuhai
http://zoomq.qiniudn.com/CPyUG/PyCon2014China/141115zh-pm1-bpm.py.MP3
Zoom.Quiet
November 17, 2014
Tweet
Share
More Decks by Zoom.Quiet
See All by Zoom.Quiet
PyCon2014China-Zhuhai-high performance
zoomquiet
0
130
PyCon2014China-Zhuhai-meta programming
zoomquiet
1
100
PyCon2014China-Zhuhai-luna kv db
zoomquiet
0
84
PyCon2014China-Zhuhai-seed studio
zoomquiet
0
67
PyCon2014China-Zhuhai-Docker Registry Build By Python
zoomquiet
0
80
PyCon2014China-Zhuhai-jeff
zoomquiet
0
60
PyCon2014China-Zhuhai-pythonic front-end
zoomquiet
0
91
DevFest2014-Zhuhai-Polymer
zoomquiet
0
370
TEDxJLUZH MOMENT future
zoomquiet
0
340
Other Decks in Technology
See All in Technology
FODにおけるホーム画面編成のレコメンド
watarukudo
PRO
2
280
AWS Community Builderのススメ - みんなもCommunity Builderに応募しよう! -
smt7174
0
190
東京Ruby会議12 Ruby と Rust と私 / Tokyo RubyKaigi 12 Ruby, Rust and me
eagletmt
3
880
【JAWS-UG大阪 reInvent reCap LT大会 サンバが始まったら強制終了】“1分”で初めてのソロ参戦reInventを数字で振り返りながら反省する
ttelltte
0
140
Godot Engineについて調べてみた
unsoluble_sugar
0
430
実践! ソフトウェアエンジニアリングの価値の計測 ── Effort、Output、Outcome、Impact
nomuson
0
2.1k
TSのコードをRustで書き直した話
askua
3
270
カップ麺の待ち時間(3分)でわかるPartyRockアップデート
ryutakondo
0
140
0→1事業こそPMは営業すべし / pmconf #落選お披露目 / PM should do sales in zero to one
roki_n_
PRO
1
1.6k
Cloudflareで実現する AIエージェント ワークフロー基盤
kmd09
0
290
生成AIのビジネス活用
seosoft
0
110
機械学習を「社会実装」するということ 2025年版 / Social Implementation of Machine Learning 2025 Version
moepy_stats
6
1.5k
Featured
See All Featured
Building Your Own Lightsaber
phodgson
104
6.2k
Building Flexible Design Systems
yeseniaperezcruz
328
38k
Stop Working from a Prison Cell
hatefulcrawdad
267
20k
Build your cross-platform service in a week with App Engine
jlugia
229
18k
Creating an realtime collaboration tool: Agile Flush - .NET Oxford
marcduiker
26
1.9k
Intergalactic Javascript Robots from Outer Space
tanoku
270
27k
Optimizing for Happiness
mojombo
376
70k
StorybookのUI Testing Handbookを読んだ
zakiyama
28
5.4k
Reflections from 52 weeks, 52 projects
jeffersonlam
348
20k
Imperfection Machines: The Place of Print at Facebook
scottboms
267
13k
Code Reviewing Like a Champion
maltzj
521
39k
A designer walks into a library…
pauljervisheath
205
24k
Transcript
None
芯雲流程引擎 使用Python协程解决阻塞问题
[email protected]
Service Orchestration DNS 系统 接入层 系统 告警 系统 配置管理 系统
Game Server SA 系统 IaaS 系统 官网 系统
Python with @task
阻塞问题 result = call_func() result 无法立即获得,所谓“阻塞”
I/O 阻塞 bytes = tcp_socket.recv(4096) 网络I/O操作需要时间,所谓“I/O 阻塞”
例子 连接 发送 接收
回调 def on_received(bytes): ….. def on_sent(sock): sock.recv(on_received) def on_connect(sock): sock.send(‘xxx’,
on_sent) connect(‘a.b.c.d’, on_connect) 上下文
CALLBACK HELL
Logic Locality 最小化开发人员阅读流程代码的眼球移动距离
协程可以表达I/O阻塞 def some_process(): sock = connect(‘a.b.c.d’, on_connect) sock.send(‘xxx’) bytes =
sock.recv(on_received) …. 上下文 locals()
流程阻塞 ip = res.request_new_server(model=’B6’) 调用“外部系统”需要时间,所谓“流程阻塞”
流程阻塞 yes_no = smcs.wechat_approve(‘reboot?’) 人工审批需要时间,所谓“流程阻塞”
协程也可以表达流程阻塞 def some_process(): ip = res.request_new_server(model=’B6’) yes_no = smcs.wechat_approve(‘deploy %s?’
% ip) if yes_no: ijobs.exec_job(‘deploy’, ip)
流程引擎 申请机器 部署 修改DNS 引擎 流程
各式Event Loop 连接 发送 接收 event loop 协程 gevent tulip
/ asyncio tornado evergreen eventlet
所谓Event Loop def some_process(): sock = connect(‘a.b.c.d’, on_connect) sock.send(‘xxx’) bytes
= sock.recv(on_received) …. 协程 Event Loop fd_map = {} [fd, read] => coroutine 操作系统 select kqueue epoll recv好了告诉我, 我先睡你那了 select(sock, EV_READ) fd 132 可读了 fd 132 对应的协程醒醒 开读了
协程可以存数据库的 def some_process(): ip = res.request_new_server(model=’B6’) yes_no = smcs.wechat_approve(‘deploy %s?’
% ip) if yes_no: ijobs.exec_job(‘deploy’, ip) 协程 引擎 event_map = {} event => coroutine 外部系统 审批好了告诉我, 我先睡你那了 wechat approve 审批结果有了 审批好了,协程醒醒 开工了 mysql import cPickle bytes = cPickle.dumps(coroutine)
Python协程实现 • yield • stackless python / pypy • greenlet
/ python-fibers / stacklet / libgevent
Ultimate Coroutine Scheduler • 语言:Java for true parallelism • 协程:co-routine
with bytecode weaver • I/O阻塞:包装NIO • 流程阻塞:event map,持久化可选 https://github.com/taowen/daili
协程大法好 招聘:
[email protected]