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@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

> cat .zshfunc/vnc
# -*- sh -*-
## vim:ft=zsh:foldmethod=marker
local HOST VM
if [ $# -lt 2 ]; then
echo "Usage: $0 HOST VM"
return
fi
@jboner
jboner / latency.txt
Last active May 13, 2025 17:54
Latency Numbers Every Programmer Should Know
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
@colinmollenhour
colinmollenhour / cleanCache.php
Created May 17, 2012 00:50
Simplified cache cleaning script for production updates.
<?php
/**
* Set global/skip_process_modules_updates to '1' in app/etc/local.xml and
* then use this script to apply updates and refresh the config cache without
* causing a stampede on the config cache.
*
* @author Colin Mollenhour
*/
umask(0);
ini_set('memory_limit','512M');
@erikh
erikh / hack.sh
Created March 31, 2012 07:02 — forked from DAddYE/hack.sh
OSX For Hackers
#!/usr/bin/env sh
##
# This is script with usefull tips taken from:
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
# curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#
@bryanwb
bryanwb / gist:2225015
Created March 28, 2012 09:25
fun with shef and pry
check out pry screencast here http://pry.github.com/screencasts.html
install pry
$ gem install pry pry-doc
start shef
$ shef
# load pry
chef> require 'pry'

Adrian -

I appreciate that you spent time in writing this post. I know I've been up until 2am writing similarly long ones as well. I will take responsibility for having what is likely an irrational response (I blame Twitter for that) to the term "NoOps", but I invite you to investigate why that might be. I'm certainly not the only one who feels this way, apparently, and thus far have decided this issue is easily the largest distraction in my field I've encountered in recent years. I have had the option to simply ignore my opposition to the term, and just let the chips fall where they may with how popular the term "NoOps" may or may not get. I have obviously not taken that option in the past, but I plan to in the future.

You're not an analyst saying "NoOps". Analysts are easy (for me) to ignore, because they're not practitioners. We have expectations of engineering maturity from practitioners in this field of web engineering, especially those we consider leaders. I don't have any expectations from analysts,

@jordansissel
jordansissel / CEE.md
Created March 6, 2012 03:01
So, I read over most of CEE, and it is a failure.

Failure.

MITRE has this thing called "CEE" - Common Event Expression.

CEE is a failure because, while claiming to be a standards effort, it maximizes incompatibility between implementations by doing the following:

  • poorly describes multiple serialization formats, requires none of them. This ensures maximum incompatibility in event serialization
  • defines requirements for log transport protocols, but does not describe an actual protocol. This ensures maximum protocol incompatibility
  • naming style inconsistencies This ensures confusion
ruby_block "configure #{p} module" do
block do
require 'chef/util/file_edit'
nc = Chef::Util::FileEdit.new("/etc/reconnoiter/noit.conf")
nc.insert_line_after_match(/lua.*noit.module.smtp/, "<module loader=\"lua\" name=\"#{p}\" object=\"noit.module.#{p}\"/>")
nc.write_file
Chef::Log.info "Inserted module config for #{p}"
end
@lusis
lusis / log4j.xml
Created November 23, 2011 07:11
Ruby logstash cli application - allows searching historical data in ElasticSearch or live tailing from AMQP topic exchange
<!-- the env variables are controlled by Chef and passed in via -D on the java command-line -->
<!-- This is using the appender here: https://github.com/t0xa/gelfj -->
<appender name="graylog2" class="org.graylog2.log.GelfAppender">
<param name="graylogHost" value="${graylog.server}"/>
<param name="originHost" value="${graylog.origin}"/>
<param name="extractStacktrace" value="true"/>
<param name="addExtendedInformation" value="true"/>
<!-- The _web part is because a given app has multiple components -->
<!-- This app might have a _web as well as an _batch component -->
<param name="facility" value="${graylog.facility}_web"/>