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anonymous
anonymous / gist:2071375
Created March 18, 2012 12:31
DAME RAVVEDERE
@jboner
jboner / latency.txt
Last active May 25, 2024 01:28
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
@natelandau
natelandau / .bash_profile
Last active May 20, 2024 08:41
Mac OSX Bash Profile
# ---------------------------------------------------------------------------
#
# Description: This file holds all my BASH configurations and aliases
#
# Sections:
# 1. Environment Configuration
# 2. Make Terminal Better (remapping defaults and adding functionality)
# 3. File and Folder Management
# 4. Searching
# 5. Process Management
@staltz
staltz / introrx.md
Last active May 24, 2024 07:56
The introduction to Reactive Programming you've been missing
@jen20
jen20 / MessageIdentity.cs
Created August 19, 2014 17:39
Generator for deterministic GUIDs
public class MessageIdentity
{
public Guid NameSpace;
private readonly byte[] _namespaceBytes;
public MessageIdentity(Guid guidNameSpace)
{
NameSpace = guidNameSpace;
_namespaceBytes = guidNameSpace.ToByteArray();
SwapByteOrder(_namespaceBytes);
@gregoryyoung
gregoryyoung / gist:a3e69ed58ae066b91f1b
Created June 24, 2015 13:25
Event Sourcing as 3 functions.
f(events) -> state
match f(state, event) -> state
f(state, command) -> events
@jasongilman
jasongilman / atom_clojure_setup.md
Last active May 11, 2024 02:25
This describes how I setup Atom for Clojure Development.

Atom Clojure Setup

This describes how I setup Atom for an ideal Clojure development workflow. This fixes indentation on newlines, handles parentheses, etc. The keybinding settings for enter (in keymap.cson) are important to get proper newlines with indentation at the right level. There are other helpers in init.coffee and keymap.cson that are useful for cutting, copying, pasting, deleting, and indenting Lisp expressions.

Install Atom

Download Atom

The Atom documentation is excellent. It's highly worth reading the flight manual.

Applied Functional Programming with Scala - Notes

Copyright © 2016-2018 Fantasyland Institute of Learning. All rights reserved.

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x
@wojteklu
wojteklu / clean_code.md
Last active May 25, 2024 07:53
Summary of 'Clean code' by Robert C. Martin

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.


General rules

  1. Follow standard conventions.
  2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
  3. Boy scout rule. Leave the campground cleaner than you found it.
  4. Always find root cause. Always look for the root cause of a problem.

Design rules