hellerbarde

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

viktorklang

#!/usr/bin/env zsh

# in fino veritas
 
# Borrowing shamelessly from these oh-my-zsh themes:
#   fino-time
#   pure
#   https://gist.github.com/smileart/3750104

# Set required options

jdegoes

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

jastice

Installation instructions

1. Install bloop 1.0.0-M11 by following the Bloop installation instructions. Then, make sure you start up the bloop server on the background and to generate the configuration files by running bloopInstall in your build tool.
2. Install IntelliJ 2018.2 EAP and then enable the nightly version of the Scala Plugin by opening Preferences | Languages & Frameworks | Scala | Updates tab and selecting the Nightly plugin update channel:
3. check for updates and download the Scala plugin Nightly release.
4. Reboot IntelliJ. The Scala plugin should now have version 2018.2.277 or higher (check in Preferences | Plugins)
5. Open the "Find Action" search box (usual hotkey Shift+Ctrl+A or shift+cmd+A) and search for "bsp". The search box will show the full action name: "Enable experime