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panlw / latency.txt
Created January 4, 2020 13:25 — forked from jboner/latency.txt
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
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panlw / README-Template.md
Created August 30, 2018 09:18 — forked from PurpleBooth/README-Template.md
A template to make good README.md

Project Title

One Paragraph of project description goes here

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.

Prerequisites

@panlw
panlw / curl.md
Created July 5, 2018 03:19 — forked from subfuzion/curl.md
curl POST examples

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

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panlw / macosx-install-php-oracle-oci8.md
Created June 1, 2018 03:15 — forked from thinhhung/macosx-install-php-oracle-oci8.md
install Oracle PHP Extension (oracle OCI8) - instantclient for Mac OS 10.8 - homebrew environnement

Installation

This procedure is tested on Mac OS X 10.12.5 with Developpers tools installed (xCode).

PHP 7.1 installed with Homebrew.

Preparation

Download the following files from Oracle website (yes, you need to create an account and accept terms):

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panlw / dnsmasq OS X.md
Created May 27, 2018 16:16 — forked from ogrrd/dnsmasq OS X.md
Setup dnsmasq on OS X

Never touch your local /etc/hosts file in OS X again

To setup your computer to work with *.dev domains, e.g. project.dev, awesome.dev and so on, without having to add to your hosts file each time.

Requirements

Install

@panlw
panlw / default
Created May 27, 2018 10:10 — forked from dtomasi/default
Brew Nginx PHP7
server {
listen 80;
server_name localhost;
root /Users/YOUR_USERNAME/Sites;
access_log /Library/Logs/default.access.log main;
location / {
include /usr/local/etc/nginx/conf.d/php-fpm;
}
@panlw
panlw / .ackrc
Created May 27, 2018 06:27 — forked from hernamesbarbara/.ackrc
Example configuration for using Ack to search file tree
#ack is a tool like grep, designed for programmers with large trees of heterogeneous source code
#to install ack, see http://betterthangrep.com/
#to use ack, launch terminal (mac osx) and type 'ack <some_keywords>'
#ack will search all files in the current directory & sub-directories
#here's how I have my config file setup. this file is located on mac osx here
# ~/.ackrc
# Always sort the files
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panlw / ClientInfo.java
Created July 4, 2017 14:00 — forked from c0rp-aubakirov/ClientInfo.java
How to get full client info using servlet request, including client IP, browser, os, use-agent and referer
public void printClientInfo(HttpServletRequest request) {
final String referer = getReferer(request);
final String fullURL = getFullURL(request);
final String clientIpAddr = getClientIpAddr(request);
final String clientOS = getClientOS(request);
final String clientBrowser = getClientBrowser(request);
final String userAgent = getUserAgent(request);
logger.info("\n" +
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panlw / ie67891011-css-hacks.txt
Created September 1, 2016 05:16 — forked from ricardozea/ie67891011-css-hacks.txt
IE CSS hacks - IE6, 7, 8, 9, 10, 11
IE6 Only
==================
_selector {...}
IE6 & IE7
==================
*html or { _property: }
IE7 Only
==================
@panlw
panlw / idea
Created February 16, 2016 02:35 — forked from chrisdarroch/idea
Open a project in IntelliJ IDEA from your command line!
#!/bin/sh
# check for where the latest version of IDEA is installed
IDEA=`ls -1d /Applications/IntelliJ\ * | tail -n1`
wd=`pwd`
# were we given a directory?
if [ -d "$1" ]; then
# echo "checking for things in the working dir given"
wd=`ls -1d "$1" | head -n1`