- Use a class 10 SD card for best speed. The USB bus can't come much higher than 30MB/s so you don't have to buy any extremely fast ones though. Not all cards are compatible, check the compatibility list: http://elinux.org/RPi_SD_cards
- Use the HardFloat version of Raspbian instead of the SoftFloat. HF has much faster floating point operations - however SF is required for running Java. So it's either Java or performance, like normal.
- The official Raspbian image gives low network speeds: http://elinux.org/RPi_Performance#NIC
- A graphics driver by Simon / teh_orph is using hardware acceleration for some instructions: http://www.raspberrypi.org/phpBB3/viewtopic.php?f=63&t=28294 installation instructions: http://elinux.org/RPi_Xorg_rpi_Driver
- The firmware can be upgraded which gives, among other things, better GPU performance.
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#!/usr/bin/env bash | |
set -e | |
if [ ! -d src/amazon-s3-and-cloudfront ]; then | |
echo 'This script must be run from the repository root.' | |
exit 1 | |
fi | |
for PROG in composer find sed unzip |
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#!/bin/bash | |
# | |
# Script to create MySQL db + user | |
# | |
# @author Raj KB <[email protected]> | |
# @website http://www.magepsycho.com | |
# @version 0.1.0 | |
################################################################################ |
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="UTF-8"> | |
<title>My FB Reactions Page</title> | |
<style> | |
html { | |
box-sizing: border-box; | |
width: 100%; |
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<?php | |
/* | |
* Virtual Themed Page class | |
* | |
* This class implements virtual pages for a plugin. | |
* | |
* It is designed to be included then called for each part of the plugin | |
* that wants virtual pages. | |
* | |
* It supports multiple virtual pages and content generation functions. |
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#!/bin/sh | |
# | |
# Add a Google Analytics tag to static website files | |
# @see http://adambuchanan.me/post/26345221717/updating-google-analytics-code-on-many-static-pages | |
# Tested on MacOS 10.8.X | |
# | |
# Usage: | |
# Set the GA parameters below | |
# Execute the script from the top-level of the static site | |
# |
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curl -s https://api.github.com/orgs/twitter/repos?per_page=200 | ruby -rubygems -e 'require "json"; JSON.load(STDIN.read).each { |repo| %x[git clone #{repo["ssh_url"]} ]}' |
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Latency Comparison Numbers (~2012) | |
---------------------------------- | |
L1 cache reference 0.5 ns | |
Branch mispredict 5 ns | |
L2 cache reference 7 ns 14x L1 cache | |
Mutex lock/unlock 25 ns | |
Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
Compress 1K bytes with Zippy 3,000 ns 3 us | |
Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
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<?php | |
/* | |
Plugin Name: Disable plugins when doing local dev | |
Description: If the WP_LOCAL_DEV constant is true, disables plugins that you specify | |
Version: 0.1 | |
License: GPL version 2 or any later version | |
Author: Mark Jaquith | |
Author URI: http://coveredwebservices.com/ | |
*/ |
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# Configure colors, if available. | |
if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then | |
c_reset='\[\e[0m\]' | |
c_user='\[\e[0;32m\]' | |
c_path='\[\e[1;34m\]' | |
c_git_clean='\[\e[0;37m\]' | |
c_git_staged='\[\e[0;32m\]' | |
c_git_unstaged='\[\e[0;31m\]' | |
else | |
c_reset= |
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