vincenting

# coding=utf-8
__author__ = 'Vincent Ting'

#!/usr/bin/env python
# -*- coding: utf-8 -*-

__author__ = 'Vincent Ting'

import cookielib
import urllib2

jcouyang

本文基本上这为两篇文章的翻译和整合 -- Scalable networking And Why are event-driven server so great

OPPC模型瓶颈

传统服务器模型如Apache为每一个请求生成一个子进程。当用户连接到服务器的一个子进程就产生，并处理连接。每个连接获得一个单独的线程和子进程。当用户请求数据返回时，子进程开始等待数据库操作返回。如果此时另一个用户也请求返回数据，这时就产生了阻塞。

这种模式在非常小的工作负荷是表现良好，当请求的数量变得太大是服务器会压力过于巨大。 当Apache达到进程的最大数量，所有进程都变得缓慢。每个请求都有自己的线程，如果服务代码使用PHP编写时，每个进程所需要的内存量是相当大的[1]。

fork()操作延时

mpdavis

#!/usr/bin/python

# Connects to servers vulnerable to CVE-2014-0160 and looks for cookies, specifically user sessions.
# Michael Davis (mike.philip.davis@gmail.com)

# Based almost entirely on the quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org)

# The author disclaims copyright to this source code.

import select

rixtox

#!/usr/bin/python

# Quick and dirty demonstration of CVE-2014-0160 by Jared Stafford (jspenguin@jspenguin.org)
# The author disclaims copyright to this source code.

import sys
import struct
import socket
import time
import select

iahu

无障碍的Web应用[ARIA]介绍专题

几个场景

• 一坨没有格式化的代码
• 一个无样式的页面
• 一个不支持鼠标操作的页面/表单
• 一部不带字幕的电影
• 一个由js/as生成的web页面[对蜘蛛而言]
• 一条通向“死路”的盲道

tobert

G1GC v.s. CMS for Cassandra 2.0

Many people have asked me about using the G1 garbage collector with Cassandra. Since most of my customers are running 2.0 in production the test is with 2.0 for now. Once I script it up I'll re-run the numbers with 2.1.

I also need to re-test with Java 7 and the Oracle JDKs.

TL;DR

NT7S

// Si5351_WSPR
//
// Simple WSPR beacon for Arduino Uno, with the Etherkit Si5351A Breakout
// Board, by Jason Milldrum NT7S.
// 
// Original code based on Feld Hell beacon for Arduino by Mark 
// Vandewettering K6HX, adapted for the Si5351A by Robert 
// Liesenfeld AK6L <ak6l@ak6l.org>.  Timer setup
// code by Thomas Knutsen LA3PNA.
//