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View Performance of Flask, Tornado, GEvent, and their

Performance of Flask, Tornado, GEvent, and their combinations

Wensheng Wang, 10/1/11


When choosing a web framework, I pretty much have eyes set on Tornado. But I heard good things about Flask and Gevent. So I tested the performance of each and combinations of the three. I chose something just a little more advanced than a "Hello World" program to write - one that use templates. Here are the codes:

1, Pure Flask (

View gist:c47cbe2a07c1c9f775a6f6cdcbe20b6e
$ vi /etc/sysctl.conf
# 系统所有进程一共可以打开的文件数量, 每个套接字也占用一个文件描述字
fs.file-max = 1491124
# 系统同时保持TIME_WAIT套接字的最大数目,http 短链接会产生很多 TIME_WAIT 套接字。
net.ipv4.tcp_max_tw_buckets = 7000
# 关闭 tcp 来源跟踪
net.ipv4.conf.default.accept_source_route = 0
# 缩短套接字处于 TIME_WAIT 的时间, 60s -> 30s
net.ipv4.tcp_fin_timeout = 30
# 启用 TIME_WAIT 复用,使得结束 TIEM_WAIT 状态的套接字的端口可以立刻被其他套接字使用。
jkryanchou / proxymesh_requests_https.txt
Last active Mar 23, 2016
ProxyMesh Requests HTTPS Code Snippets
View proxymesh_requests_https.txt
# encoding: utf-8
import re
import base64
import socket
import requests.packages.urllib3.connectionpool
from http.client import HTTPConnection, HTTPSConnection