perusio

## From a post on the ML, apropos this: 
## http://lowlatencyweb.wordpress.com/2012/03/20/500000-requestssec-modern-http-servers-are-fast.
## For sysctl.conf

net.ipv4.tcp_slow_start_after_idle = 0


  echo "2048 64512" > /proc/sys/net/ipv4/ip_local_port_range
  echo "1" > /proc/sys/net/ipv4/tcp_tw_recycle
  echo "1" > /proc/sys/net/ipv4/tcp_tw_reuse

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

giosakti

git remote add <upstream>/<repo> ssh://git@bitbucket.org/<upstream>/<repo>.git
git fetch <upstream>/<repo>
git checkout master
git merge remotes/<upstream>/<repo>/master

liovch

NSString *const kColorShiftFragmentShaderString = SHADER_STRING
( 
    varying highp vec2 textureCoordinate;

    uniform sampler2D inputImageTexture;
    uniform lowp float redShift;
    uniform lowp float greenShift;
    uniform lowp float blueShift;

jshaw

Byobu Commands
==============

        byobu                              Screen manager


Level 0 Commands (Quick Start)
------------------------------

        <F2>                               Create a new window

QuantumCD

    qApp->setStyle(QStyleFactory::create("Fusion"));

    QPalette darkPalette;
    darkPalette.setColor(QPalette::Window, QColor(53,53,53));
    darkPalette.setColor(QPalette::WindowText, Qt::white);
    darkPalette.setColor(QPalette::Base, QColor(25,25,25));
    darkPalette.setColor(QPalette::AlternateBase, QColor(53,53,53));
    darkPalette.setColor(QPalette::ToolTipBase, Qt::white);
    darkPalette.setColor(QPalette::ToolTipText, Qt::white);
    darkPalette.setColor(QPalette::Text, Qt::white);

jo

JavaScript Crypto Libraries

List some crypto libraries for JavaScript out there. Might be a bit out dated. Scroll to the bottom.

WebCryptoAPI

http://www.w3.org/TR/WebCryptoAPI/

This specification describes a JavaScript API for performing basic cryptographic operations in web applications, such as hashing, signature generation and verification, and encryption and decryption. Additionally, it describes an API for applications to generate and/or manage the keying material necessary to perform these operations. Uses for this API range from user or service authentication, document or code signing, and the confidentiality and integrity of communications.

ongardie

#!/bin/sh
gdb -q --batch \
               -ex 'handle SIGHUP nostop pass' \
               -ex 'handle SIGQUIT nostop pass' \
               -ex 'handle SIGPIPE nostop pass' \
               -ex 'handle SIGALRM nostop pass' \
               -ex 'handle SIGTERM nostop pass' \
               -ex 'handle SIGUSR1 nostop pass' \
               -ex 'handle SIGUSR2 nostop pass' \
               -ex 'handle SIGCHLD nostop pass' \

LeCoupa

#!/bin/bash
#####################################################
# Name: Bash CheatSheet for Mac OSX
# 
# A little overlook of the Bash basics
#
# Usage:
#
# Author: J. Le Coupanec
# Date: 2014/11/04

Koze

  PHFetchResult *result = [PHAssetCollection fetchAssetCollectionsWithType:PHAssetCollectionTypeSmartAlbum
                                                                   subtype:PHAssetCollectionSubtypeSmartAlbumUserLibrary
                                                                   options:nil];
  PHAssetCollection *assetCollection = result.firstObject;
  NSLog(@"%@", assetCollection.localizedTitle);
  // Camera Roll