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
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
Zoom.Quiet
November 17, 2014
Technology
150
0
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
PyCon2014China-Zhuhai-bpm.py
141115 in Zhuhai
http://zoomq.qiniudn.com/CPyUG/PyCon2014China/141115zh-pm1-bpm.py.MP3
Zoom.Quiet
November 17, 2014
More Decks by Zoom.Quiet
See All by Zoom.Quiet
PyCon2014China-Zhuhai-high performance
zoomquiet
0
200
PyCon2014China-Zhuhai-meta programming
zoomquiet
1
180
PyCon2014China-Zhuhai-luna kv db
zoomquiet
0
150
PyCon2014China-Zhuhai-seed studio
zoomquiet
0
140
PyCon2014China-Zhuhai-Docker Registry Build By Python
zoomquiet
0
160
PyCon2014China-Zhuhai-jeff
zoomquiet
0
150
PyCon2014China-Zhuhai-pythonic front-end
zoomquiet
0
180
DevFest2014-Zhuhai-Polymer
zoomquiet
0
480
TEDxJLUZH MOMENT future
zoomquiet
0
450
Other Decks in Technology
See All in Technology
Claude Codeとハーネスについて考えてみる
oikon48
18
9.4k
しくみを学んで使いこなそう GitHub Copilot app
torumakabe
2
240
はじめてのWDM
miyukichi_ospf
1
140
AIレビューはどこまで任せられるのか?自動化と人が背負うレビューの境界
sansantech
PRO
2
770
[2026-07-15] AI Ready なはずだったアーキテクチャと、見えてきた課題・次に目指す状態
wxyzzz
4
2.9k
ポストモーテム! DDoSからサイトは守れた。 でもビジネスは守れなかった。
bengo4com
0
2.9k
依頼文化をやめる日 EM視点で語るPlatform EngineeringとInclusive SRE / Discussing Platform Engineering and Inclusive SRE from an EM's Perspective
shin1988
4
5.3k
タスクの複雑さでモデルを選ぶ ── Thompson Samplingで動かす“トークン/コスト最適化
satohy0323
0
350
完全自律ロボットを作りたくて、先に開発を自律させた話(ROS Japan UG #63 LT)
rryz09
0
510
Mastraエージェント、どのクラウドにデプロイする?
minorun365
PRO
2
180
Empower GenAI with Agile - あなたのアジャイルが生成AIのバフになる仕組み
hageyahhoo
1
180
証券システムを10年Scalaで作り続けるということ - 関数型まつり2026
krrrr38
3
840
Featured
See All Featured
The untapped power of vector embeddings
frankvandijk
2
1.8k
AI: The stuff that nobody shows you
jnunemaker
PRO
8
820
Gemini Prompt Engineering: Practical Techniques for Tangible AI Outcomes
mfonobong
2
460
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
333
23k
Art, The Web, and Tiny UX
lynnandtonic
304
22k
Building AI with AI
inesmontani
PRO
1
1.1k
Lightning Talk: Beautiful Slides for Beginners
inesmontani
PRO
2
600
16th Malabo Montpellier Forum Presentation
akademiya2063
PRO
0
190
Believing is Seeing
oripsolob
1
170
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
254
22k
How to Ace a Technical Interview
jacobian
281
24k
The Mindset for Success: Future Career Progression
greggifford
PRO
0
410
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]