alyssaq

1. Install Python 3.7.x from https://www.python.org/downloads/ or via homebrew.

$ brew install python3   # Installed at /usr/local/Cellar/python3

Check that python3 has been installed by running it at the terminal:

$ python3
>>> Python 3.7.2

2. Download get-pip.py from https://bootstrap.pypa.io/get-pip.py and install (this should already be installed if python was installed from python.org or homebrew):

karlhorky

Vagrant Port Forwarding (8080 -> 80, 8443 -> 443) with pf on OSX Mavericks/Yosemite

This guide is a fork from this gist.

Since Mavericks stopped using the deprecated ipfw (as of Mountain Lion), we'll be using pf to allow port forwarding.

1. Create the anchor file

Create an anchor file under /etc/pf.anchors/com.vagrant with your redirection rule like:

rdr pass on lo0 inet proto tcp from any to any port 80 -> 127.0.0.1 port 8080

OneOfOne

package xxhash_map_test

import (
	"bytes"
	"fmt"
	"testing"

	"github.com/OneOfOne/xxhash"
)

hofmannsven

Git

Global Settings

• Related Setup: https://gist.github.com/hofmannsven/6814278
• Related Pro Tips: https://ochronus.com/git-tips-from-the-trenches/
• Interactive Beginners Tutorial: http://try.github.io/
• Git Cheatsheet by GitHub: https://services.github.com/on-demand/downloads/github-git-cheat-sheet/

Reminder

Press minus + shift + s and return to chop/fold long lines!

jboner

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