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
110
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
160
PyCon2014China-Zhuhai-meta programming
zoomquiet
1
130
PyCon2014China-Zhuhai-luna kv db
zoomquiet
0
92
PyCon2014China-Zhuhai-seed studio
zoomquiet
0
98
PyCon2014China-Zhuhai-Docker Registry Build By Python
zoomquiet
0
110
PyCon2014China-Zhuhai-jeff
zoomquiet
0
87
PyCon2014China-Zhuhai-pythonic front-end
zoomquiet
0
120
DevFest2014-Zhuhai-Polymer
zoomquiet
0
410
TEDxJLUZH MOMENT future
zoomquiet
0
380
Other Decks in Technology
See All in Technology
Why Governance Matters: The Key to Reducing Risk Without Slowing Down
sarahjwells
0
110
Pure Goで体験するWasmの未来
askua
1
180
リーダーになったら未来を語れるようになろう/Speak the Future
sanogemaru
0
280
いま注目しているデータエンジニアリングの論点
ikkimiyazaki
0
590
AI時代だからこそ考える、僕らが本当につくりたいスクラムチーム / A Scrum Team we really want to create in this AI era
takaking22
6
3.5k
自動テストのコストと向き合ってみた
qa
0
150
ユニットテストに対する考え方の変遷 / Everyone should watch his live coding
mdstoy
0
130
空間を設計する力を考える / 20251004 Naoki Takahashi
shift_evolve
PRO
3
330
動画データのポテンシャルを引き出す! Databricks と AI活用への奮闘記(現在進行形)
databricksjapan
0
140
SREとソフトウェア開発者の合同チームはどのようにS3のコストを削減したか?
muziyoshiz
1
100
生成AIで「お客様の声」を ストーリーに変える 新潮流「Generative ETL」
ishikawa_satoru
1
320
AI駆動開発を推進するためにサービス開発チームで 取り組んでいること
noayaoshiro
0
180
Featured
See All Featured
Rebuilding a faster, lazier Slack
samanthasiow
84
9.2k
Fashionably flexible responsive web design (full day workshop)
malarkey
407
66k
Fantastic passwords and where to find them - at NoRuKo
philnash
52
3.4k
Large-scale JavaScript Application Architecture
addyosmani
514
110k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
140
34k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
What's in a price? How to price your products and services
michaelherold
246
12k
A Modern Web Designer's Workflow
chriscoyier
697
190k
The Success of Rails: Ensuring Growth for the Next 100 Years
eileencodes
46
7.6k
Chrome DevTools: State of the Union 2024 - Debugging React & Beyond
addyosmani
7
890
How to Create Impact in a Changing Tech Landscape [PerfNow 2023]
tammyeverts
54
3k
Build your cross-platform service in a week with App Engine
jlugia
232
18k
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]