karlooper
一个单线程异步非阻塞的web应用框架,
基于epoll, kqueue等机制实现的支持高并发的web框架。
安装
相关依赖: jinja2.8
python版本: >=2.6.6 and < 3.0
下载或克隆源码到本地,
解压后进入文件夹,
运行如下命令:
sudo python setup.py install
示例
hello world
# -*-coding:utf-8-*-
from karlooper.web.application import Application
from karlooper.web.request import Request
__author__ = 'karlvorndoenitz@gmail.com'
class HelloHandler(Request):
def get(self):
return self.http_response("Hello,World!")
handlers = {
"/hello": HelloHandler
}
if __name__ == '__main__':
application = Application(handlers, port=8000)
application.run()
运行 hello world
python index.py
然后打开浏览器访问"http://127.0.0.1:8000/hello", 页面显示"Hello,World!"。
跟tornado的性能对比
我们对比一下服务器只返回hello world时的性能的差异。
OS: Ubuntu 14.04 LTS
CPU: Intel core i5 2.5GHz
Memory: 10G DDR3 1600GHz
tornado
karl@karl-Inspiron-N4050:~$ ab -n 10000 -c 50 http://localhost:9999/hello
This is ApacheBench, Version 2.3 <$Revision: 1706008 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests
Server Software: TornadoServer/4.4.2
Server Hostname: localhost
Server Port: 9999
Document Path: /hello
Document Length: 12 bytes
Concurrency Level: 50
Time taken for tests: 7.041 seconds
Complete requests: 10000
Failed requests: 0
Total transferred: 2070000 bytes
HTML transferred: 120000 bytes
Requests per second: 1420.32 [#/sec] (mean)
Time per request: 35.203 [ms] (mean)
Time per request: 0.704 [ms] (mean, across all concurrent requests)
Transfer rate: 287.12 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.1 0 3
Processing: 2 35 10.7 28 198
Waiting: 2 35 10.7 28 198
Total: 4 35 10.7 28 200
Percentage of the requests served within a certain time (ms)
50% 28
66% 46
75% 47
80% 47
90% 48
95% 49
98% 51
99% 52
100% 200 (longest request)
karlooper
karl@karl-Inspiron-N4050:~$ ab -n 10000 -c 50 http://localhost:8080/hello-world
This is ApacheBench, Version 2.3 <$Revision: 1706008 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking localhost (be patient)
Completed 1000 requests
Completed 2000 requests
Completed 3000 requests
Completed 4000 requests
Completed 5000 requests
Completed 6000 requests
Completed 7000 requests
Completed 8000 requests
Completed 9000 requests
Completed 10000 requests
Finished 10000 requests
Server Software:
Server Hostname: localhost
Server Port: 8080
Document Path: /hello-world
Document Length: 20 bytes
Concurrency Level: 50
Time taken for tests: 1.204 seconds
Complete requests: 10000
Failed requests: 0
Total transferred: 1360000 bytes
HTML transferred: 200000 bytes
Requests per second: 8307.10 [#/sec] (mean)
Time per request: 6.019 [ms] (mean)
Time per request: 0.120 [ms] (mean, across all concurrent requests)
Transfer rate: 1103.29 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.2 0 4
Processing: 1 6 1.3 6 16
Waiting: 1 6 1.2 6 16
Total: 5 6 1.3 6 16
Percentage of the requests served within a certain time (ms)
50% 6
66% 6
75% 6
80% 6
90% 6
95% 8
98% 12
99% 13
100% 16 (longest request)
中文文档
示意图
注意
这个框架在Linux版本的 CubeBackup for Google Apps 中有所使用。
如果你对代码的改进有好的建议或意见,欢迎发送邮件至 karlvorndoenitz@gmail.com, 非常感谢。