ibehnam

//
//  Copyright © 2023 Bill Bonney. All rights reserved.
//
// The Swift Programming Language: Swift by Tutorials (solutions)
// Author: Bill Bonney <billbonney (at) communistech.com>
//
// This is all the code in The Swift Tour section in the Apple Book on Swift.
// This should allow you to play with the code and see behaviours, and help
// solve any paticulars you get stuck on when doing the Experiments.
//

ibehnam

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

ibehnam

#cloud-config

# Enable automatic package updates and upgrades during cloud-init execution
package_update: true
package_upgrade: true

packages:
    # Security and Hardening
    - ufw
    - fail2ban

ibehnam

-- AppleScript --

-- This example is meant as a simple starting point to show how to get the information in the simplest available way.
-- Keep in mind that when asking for a `return` after another, only the first one will be output.
-- This method is as good as its JXA counterpart.

-- Chromium variants include "Google Chrome", "Chromium", "Opera", "Vivaldi", "Brave Browser", "Microsoft Edge".
-- Specific editions are valid, including "Google Chrome Canary", "Microsoft Edge Dev".
-- "Google Chrome" Example:
tell application "Google Chrome" to return title of active tab of front window

ibehnam

{
    ;; :!Ca is keycode :a and prefix a with !C

    ;; C  | left_command
    ;; T  | left_control
    ;; O  | left_option
    ;; S  | left_shift
    ;; F  | fn
    ;; Q  | right_command
    ;; W  | right_control