To run this, you can try:
curl -ksO https://gist.githubusercontent.com/nicerobot/2697848/raw/uninstall-node.sh
chmod +x ./uninstall-node.sh
./uninstall-node.sh
rm uninstall-node.sh
To run this, you can try:
curl -ksO https://gist.githubusercontent.com/nicerobot/2697848/raw/uninstall-node.sh
chmod +x ./uninstall-node.sh
./uninstall-node.sh
rm uninstall-node.sh
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 |
#!/usr/bin/python | |
# fix-xcode | |
# Rob Napier <robnapier@gmail.com> | |
# Script to link in all your old SDKs every time you upgrade Xcode | |
# Create a directory called /SDKs (or modify source_path). | |
# Under it, put all the platform directories: | |
# MacOSX.platform iPhoneOS.platform iPhoneSimulator.platform | |
# Under those, store the SDKs: |
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000
L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns on recent CPU
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 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 4X memory
#!/usr/bin/env ruby | |
# encoding: UTF-8 | |
user = '<YOUR USERNAME HERE>' | |
puts 'Repository Name:' | |
name = gets.chomp | |
puts 'Repository Description:' | |
description = gets.chomp |
<!DOCTYPE html> | |
<html> | |
<head> | |
<meta charset="utf-8"> | |
<title>JS Bin</title> | |
<style id="jsbin-css"> | |
body, canvas { | |
width: 100%; | |
height: 500px; | |
} |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
# Download latest archlinux bootstrap package, see https://www.archlinux.org/download/ | |
wget 'ftp://ftp.nluug.nl/pub/os/Linux/distr/archlinux/iso/latest/archlinux-bootstrap-*-x86_64.tar.gz' | |
# Make sure you'll have enough entropy for pacman-key later. | |
apt-get install haveged | |
# Install the arch bootstrap image in a tmpfs. | |
mount -t tmpfs none /mnt | |
cd /mnt | |
tar xvf ~/archlinux-bootstrap-*-x86_64.tar.gz --strip-components=1 |
#!/bin/bash | |
# query.sh from BreachCompilation - magnet:?xt=urn:btih:7ffbcd8cee06aba2ce6561688cf68ce2addca0a3 | |
# works with older bash versions. | |
# patch by Willem <itsme@xs4all.nl> | |
dir=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd ) | |
if [ "$1" != "" ]; then | |
word1=$(echo $1 | tr A-Z a-z) | |
letter1=$(echo $word1|cut -b1) | |
if [[ $letter1 == [a-zA-Z0-9] ]]; then |