Huang Bin hbin

From time to time, Musk will send out an e-mail to the entire company to enforce a new policy or let them know about something that's bothering him. One of the more famous e-mails arrived in May 2010 with the subject line: Acronyms Seriously Suck:

There is a creeping tendency to use made up acronyms at SpaceX. Excessive use of made up acronyms is a significant impediment to communication and keeping communication good as we grow is incredibly important. Individually, a few acronyms here and there may not seem so bad, but if a thousand people are making these up, over time the result will be a huge glossary that we have to issue to new employees. No one can actually remember all these acronyms and people don't want to seem dumb in a meeting, so they just sit there in ignorance. This is particularly tough on new employees.

That needs to stop immediately or I will take drastic action - I have given enough warning over the years. Unless an acronym is approved by me, it should not enter the SpaceX glossary.

Sample service script for debianoids

Look at LSB init scripts for more information.

Usage

Copy to /etc/init.d:

# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)

First, add pry-rails to your Gemfile:
https://github.com/rweng/pry-rails

gem 'pry-rails', group: :development

Then you'll want to rebuild your Docker container to install the gems

Intro

The plan is to create a pair of executables (ngrok and ngrokd) that are connected with a self-signed SSL cert. Since the client and server executables are paired, you won't be able to use any other ngrok to connect to this ngrokd, and vice versa.

DNS

Add two DNS records: one for the base domain and one for the wildcard domain. For example, if your base domain is domain.com, you'll need a record for that and for *.domain.com.

Different Operating Systems

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
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

	# /etc/nsmb.conf - macOS 11.3 - 2021-04-29
	#------------------------------------------------------------------------------
	# SMB configuration for macOS 11.3 <-> Synology
	#------------------------------------------------------------------------------
	# Additional information:
	# -----------------------
	# https://support.apple.com/de-de/HT211927
	# https://support.apple.com/en-us/HT208209
	# https://apple.stackexchange.com/questions/309016/smb-share-deadlocks-since-high-sierra
	# https://photographylife.com/afp-vs-nfs-vs-smb-performance

	# Simple bijective function
	# Basically encodes any integer into a base(n) string,
	# where n is ALPHABET.length.
	# Based on pseudocode from http://stackoverflow.com/questions/742013/how-to-code-a-url-shortener/742047#742047

	ALPHABET =
	"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".split(//)
	# make your own alphabet using:
	# (('a'..'z').to_a + ('A'..'Z').to_a + (0..9).to_a).shuffle.join

	# lib/capistrano/tasks/assets.rake

	Rake::Task['deploy:assets:precompile'].clear

	namespace :deploy do
	namespace :assets do
	desc 'Precompile assets locally and then rsync to remote servers'
	task :precompile do
	local_manifest_path = %x{ls public/assets/manifest*}.strip

	{
	"env": {
	"browser": true,
	"node": true,
	"es6": true
	},

	"plugins": ["react"],

	"ecmaFeatures": {


	#
	# Slightly tighter CORS config for nginx
	#
	# A modification of https://gist.github.com/1064640/ to include a white-list of URLs
	#
	# Despite the W3C guidance suggesting that a list of origins can be passed as part of
	# Access-Control-Allow-Origin headers, several browsers (well, at least Firefox)
	# don't seem to play nicely with this.
	#