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@jboner
jboner / latency.txt
Last active June 27, 2024 14:47
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
@dergachev
dergachev / GIF-Screencast-OSX.md
Last active June 5, 2024 22:16
OS X Screencast to animated GIF

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Screencapture GIF

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

@timothyandrew
timothyandrew / README.md
Last active December 16, 2023 17:05
Set up a seedbox (on DigitalOcean – Ubuntu) really quick

Introduction

  • This script lets you set up and use a temporary DigitalOcean droplet to download torrent files.
  • Once downloaded, they can be streamed down to your local machine.
  • This uses transmission-cli for the torrent client, and nginx to serve files.

Setup on Local Machine

  • This assumes that you have a DigitalOcean account and tugboat set up, as well as seedbox-setup.sh present in the current directory.
@MoOx
MoOx / index.js
Last active February 9, 2024 22:44
Export/import github labels
// go on you labels pages
// eg https://github.com/cssnext/cssnext/labels
// paste this script in your console
// copy the output and now you can import it using https://github.com/popomore/github-labels !
var labels = [];
[].slice.call(document.querySelectorAll(".label-link"))
.forEach(function(element) {
labels.push({
name: element.textContent.trim(),
@eladnava
eladnava / export-fat-swift-dynamic-framework.sh
Last active November 26, 2021 14:43
exec > /tmp/${PROJECT_NAME}_archive.log 2>&1
UNIVERSAL_OUTPUTFOLDER=${BUILD_DIR}/${CONFIGURATION}-universal
if [ "true" == ${ALREADYINVOKED:-false} ]
then
echo "RECURSION: Detected, stopping"
else
export ALREADYINVOKED="true"
@jaisonv
jaisonv / Note.txt
Created November 25, 2017 02:17
Error running tests on framework when your framework has third party frameworks dependencies
When adding a third framework to yours you may face the following error if you try to run tests:
The bundle “[framework-name]Tests” couldn’t be loaded because it is damaged or missing necessary resources. Try reinstalling the bundle.
(dlopen_preflight([framework-path]): Library not loaded: @rpath/[third-framework-name].framework/[third-framework-name]
Referenced from: [derived-data-framework-path]
Reason: image not found)
Program ended with exit code: 82
This problem can be solved by adding "$(PROJECT_DIR)" to the "Runpath Search Paths" on the framework's Build Settings.
@viniciussoares
viniciussoares / HtmlContentView.html
Last active June 28, 2019 13:57
A WebView that automatically resizes itself - iOS - Swift
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title></title>
<style>
@font-face {
font-family: 'Uni Neue';
src: local('Uni Neue'), url('UniNeueRegular.otf') format('opentype');
@unnamedd
unnamedd / MacEditorTextView.swift
Last active May 26, 2024 17:49
[SwiftUI] MacEditorTextView - A simple and small NSTextView wrapped by SwiftUI.
/**
* MacEditorTextView
* Copyright (c) Thiago Holanda 2020-2021
* https://twitter.com/tholanda
*
* MIT license
*/
import Combine
import SwiftUI
@blessanm86
blessanm86 / german-driving-license.md
Last active June 3, 2024 04:41
Quick Ref Notes for German Driving License Test

This is unmaintained and was created for personal use. As I passed the exam I have no use to keep this up to date. Feel free to fork

What are the consequences for a person driving a motor vehicle under the influence of drugs (e.g. hashish, heroin, cocaine)?

[x] Confiscation of driving licence or driving ban
[x] Compulsory medical/psychological examination
[x] Fine and/or imprisonment

In which instances do you have to approach a pedestrian crossing with particular care?

@JohnSundell
JohnSundell / StarPlane.swift
Created July 8, 2020 22:41
A simple game written in SwiftUI. Note that this is just a fun little hack, the code is not meant to be taken seriously, and only works on iPhones in portrait mode.
// A fun little game written in SwiftUI
// Copyright (c) John Sundell 2020, MIT license.
// This is a hacky implementation written just for fun.
// It's only verified to work on iPhones in portrait mode.
import SwiftUI
final class GameController: ObservableObject {
@Published var plane = GameObject.plane()
@Published private(set) var clouds = [GameObject]()