donkeysharp

The files in this gist are for having Jenkins automatically manage a chef repository using git submodules. This allows for clean, clutter free management of individual cookbooks, and individual respositories for roles, environments and data bags in our chef-repo.

The process relies on using Github (we use Github Enterprise) and Jenkins in combination with the Jenkins Github plugin to notify Jenkins when a repository has changed.

Our chef-repo directory looks something like:

chef-repo
    - cookbooks
          - Each cookbook is a git submodule managed by Jenkins
    - data_bags (git submodule managed by Jenkins)

donkeysharp

import subprocess
import shutil
import os
import sys
import tarfile

def get_version(project_root):
    process = subprocess.Popen(
        ['git', 'describe'],
        stdout=subprocess.PIPE,

donkeysharp

Courses

• Website Performance Optimization|Udacity
• [Browser Rendering Optimization|Udacity] (https://www.udacity.com/course/browser-rendering-optimization--ud860)

Talks

• Web Performance Tooling - Google I/O 2016
• Velocity 2014: GPU and Web UI Performance: Building an Endless 60fps
• A developer’s guide to rendering performance | Fronteers 2013

donkeysharp

# The VirtualBox documentation[1] for how to install guest additions 
# for Linux on a virtual host is somewhat messy. So here is what 
# I did to make it work.

# Install the packages required
yum update
yum install gcc kernel-devel make

reboot

donkeysharp

Latency Comparison Numbers
--------------------------
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

donkeysharp

Ref: https://gist.github.com/vertexclique/9839383

Important Note

Please use built-in Terminal.app (of Mac OS X) to type and rune the command, do not use another tool (like iTerm2).

Common step after enter run the patch command:

• After run the commands, start new Sublime Text app, go to Main Menu > Help > Enter License. On the popup type in any text (example "a") and click Use Licence .

donkeysharp

Ref: https://gist.github.com/vertexclique/9839383

Important Note

Please use built-in Terminal.app (of Mac OS X) to type and rune the command, do not use another tool (like iTerm2).

Common step after enter run the patch command:

• After run the commands, start new Sublime Text app, go to Main Menu > Help > Enter License. On the popup type in any text (example "a") and click Use Licence .