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Performance of Flask, Tornado, GEvent, and their combinations

Wensheng Wang, 10/1/11

Source: http://blog.wensheng.org/2011/10/performance-of-flask-tornado-gevent-and.html

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 (pure_flask.py)

Requirements

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sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

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Run Jupyterlab on docker

Build starting from a Jupyter 2.x image.

Build

docker build -t jupyterlab .

Rust/Haskell: Higher-Kinded Types (HKT)

A higher kinded type is a concept that reifies a type constructor as an actual type.

A type constructor can be thought of in these analogies:

like a function in the type universe
as a type with a "hole" in it

	###### development tools
	sudo apt-get install build-essential python-dev git nodejs-legacy npm gnome-tweak-tool openjdk-8-jdk

	### Python packages
	sudo apt-get install python-pip python-virtualenv python-numpy python-matplotlib

	### pip packages

	pip install django flask django-widget-tweaks django-ckeditor beautifulsoup4 requests classifier SymPy ipython

	package main

	import (
	"fmt"
	"crypto/hmac"
	"crypto/sha1"
	"crypto/aes"
	"crypto/cipher"
	"encoding/base64"
	"encoding/hex"

	package main

	import (
	"math"
	"fmt"
	)

	type (

	Data struct {