Want to create a Gist from your editor, the command line, or the Services menu? Here's how.
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#!/usr/bin/env bash | |
# memusg -- Measure memory usage of processes | |
# Usage: memusg COMMAND [ARGS]... | |
# | |
# Author: Jaeho Shin <[email protected]> | |
# Created: 2010-08-16 | |
############################################################################ | |
# Copyright 2010 Jaeho Shin. # | |
# # | |
# Licensed under the Apache License, Version 2.0 (the "License"); # |
create different ssh key according the article Mac Set-Up Git
$ ssh-keygen -t rsa -C "[email protected]"
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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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This playbook has been removed as it is now very outdated. |
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#!/bin/bash | |
# bash generate random alphanumeric string | |
# | |
# bash generate random 32 character alphanumeric string (upper and lowercase) and | |
NEW_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 32 | head -n 1) | |
# bash generate random 32 character alphanumeric string (lowercase only) | |
cat /dev/urandom | tr -dc 'a-z0-9' | fold -w 32 | head -n 1 |
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#!/bin/bash | |
# | |
# Example of how to parse short/long options with 'getopt' | |
# | |
OPTS=`getopt -o vhns: --long verbose,dry-run,help,stack-size: -n 'parse-options' -- "$@"` | |
if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; exit 1 ; fi | |
echo "$OPTS" |
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0. SSH to server | |
1. Edit /opt/bitnami/apps/jenkins/jenkins_home/config.xml | |
2. set userSecurity to false: <userSecurity>false</userSecurity> | |
3. delete | |
<authorizationStrategy> and <securityRealm> | |
4. /etc/init.d/bitnami restart |
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file_to_disk = './tmp/large_disk.vdi' | |
Vagrant::Config.run do |config| | |
config.vm.box = 'base' | |
config.vm.customize ['createhd', '--filename', file_to_disk, '--size', 500 * 1024] | |
config.vm.customize ['storageattach', :id, '--storagectl', 'SATA Controller', '--port', 1, '--device', 0, '--type', 'hdd', '--medium', file_to_disk] | |
end |
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