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@jboner
jboner / latency.txt
Last active November 17, 2024 11:32
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
@roxlu
roxlu / install_cygwin_sshd.txt
Last active October 8, 2024 10:59
Installing CYGWIN + SSHD for remote access through SSH on windows
Installing CYGWIN with SSH
1) Download cygwin setup.exe from http://www.cygwin.com
- Execute setup.exe
- Install from internet
- Root directory: `c:\cygwin` + all users
- Local package directory: use default value
- Select a mirror to download files from
- Select these packages:
- editors > xemacs 21.4.22-1
- net > openssh 6.1-p
@Mte90
Mte90 / dashboard-activity-cpt.php
Created September 18, 2015 11:27
Add your cpts to the Widget Activity of the Dashboard in WordPress
<?php
/*
Plugin Name: Dashboard Widget Activity Custom Post Type
Plugin URI:
Description:
Author: Daniele Mte90 Scasciafratte
Version: 1.0.0
Author URI: http://mte90.net
*/
@lukas-h
lukas-h / license-badges.md
Last active November 11, 2024 03:22
Markdown License Badges for your Project

Markdown License badges

Collection of License badges for your Project's README file.
This list includes the most common open source and open data licenses.
Easily copy and paste the code under the badges into your Markdown files.

Notes

  • The badges do not fully replace the license informations for your projects, they are only emblems for the README, that the user can see the License at first glance.

Translations: (No guarantee that the translations are up-to-date)

@bob-lee
bob-lee / polyfill-ie11-nodelist-foreach.js
Created November 24, 2017 18:41
Polyfill for IE11 missing NodeList.forEach
if ('NodeList' in window && !NodeList.prototype.forEach) {
console.info('polyfill for IE11');
NodeList.prototype.forEach = function (callback, thisArg) {
thisArg = thisArg || window;
for (var i = 0; i < this.length; i++) {
callback.call(thisArg, this[i], i, this);
}
};
}