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Mike Guterl mguterl

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@jboner
jboner / latency.txt
Last active April 24, 2024 12:09
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
@noxasaxon
noxasaxon / learning_rust.md
Last active April 24, 2024 00:17
Learn Rust!
@davestewart
davestewart / estimation.md
Last active April 16, 2024 11:55

Estimation

This document is an attempt to pin down all the things you don't think about when quoting for a project, and hopefully provide a starting point for some kind of framework to make quoting, working and delivering small-medium jobs more predictable and less stressful.

Contents

@JoelQ
JoelQ / tally.rb
Last active April 13, 2024 16:27
Demonstration of using a rich object to represent a composite count and how it makes the math easier to deal with
class Tally
def self.empty
new({})
end
def initialize(raw)
@raw = empty_hash.merge raw.slice(:small, :medium, :large)
end
# Accessors
@coreyhaines
coreyhaines / .rspec
Last active April 11, 2024 00:19
Active Record Spec Helper - Loading just active record
--colour
-I app
@branneman
branneman / better-nodejs-require-paths.md
Last active April 8, 2024 00:22
Better local require() paths for Node.js

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

@wincent
wincent / gist:598fa75e22bdfa44cf47
Last active April 2, 2024 18:21

2015-01-29 Unofficial Relay FAQ

Compilation of questions and answers about Relay from React.js Conf.

Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.

What is Relay?

Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).

@domenic
domenic / promises.md
Last active March 31, 2024 14:07
You're Missing the Point of Promises

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.
@josevalim
josevalim / shared_connection.rb
Created July 10, 2010 16:10
# In your test_helper.rb
class ActiveRecord::Base
mattr_accessor :shared_connection
@@shared_connection = nil
def self.connection
@@shared_connection || retrieve_connection
end
end
@brianblakely
brianblakely / gist:581868
Created September 16, 2010 02:27
<!DOCTYPE html>
<!-- Helpful things to keep in your <head/>
// Brian Blakely, 360i
// http://twitter.com/brianblakely/
-->
<head>
<!-- Disable automatic DNS prefetching.