Kevin Charles kevinchar93

## latency.txt
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

## GIF-Screencast-OSX.md

      
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                dergachev
                / GIF-Screencast-OSX.md
            
            
              Last active
              April 19, 2024 11:00
            
              
                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.

Instructions

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

  
## git-ssh-error-fix.sh
$ git clone git@github.com:xxxxx/xxxx.git my-awesome-proj
Cloning into 'my-awesome-proj'...
ssh: connect to host github.com port 22: Connection timed out
fatal: Could not read from remote repository.

$ # This should also timeout
$ ssh -T git@github.com
ssh: connect to host github.com port 22: Connection timed out

$ # but this might work

## how_to_use_wireshark_with_nodejs.md

      
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                dfrankland
                / how_to_use_wireshark_with_nodejs.md
            
            
              Created
              May 28, 2020 05:06
            
              
                How to use Wireshark with Node.js (especially with HTTPS / TLS / SSL)
              
          
    How to use Wireshark with Node.js (especially with HTTPS / TLS / SSL)

It can be difficult to trace network traffic from a Node.js application.
Typically, folks will just instrument some logging to check that everything is
working as it is supposed to. Unfortunately, sometimes there are too many
abstractions or possible race conditions to accurately get a good trace. To get
the most objective possible trace of network traffic Wireshark can be used.
Wireshark is a network protocol analyzer that makes it extremely simple to
capture and trace network activity from any source on your computer. It also has

  
## print-headers.jsp
<%@ page import="java.util.*" %>
    <html>

    <head>
        <title>Http Request Headers Example in JSP</title>
    </head>

    <body>
        <h2>HTTP Request Headers Received</h2>
        <table>
	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
	$ git clone git@github.com:xxxxx/xxxx.git my-awesome-proj
	Cloning into 'my-awesome-proj'...
	ssh: connect to host github.com port 22: Connection timed out
	fatal: Could not read from remote repository.

	$ # This should also timeout
	$ ssh -T git@github.com
	ssh: connect to host github.com port 22: Connection timed out

	$ # but this might work
	<%@ page import="java.util.*" %>
	<html>

	<head>
	<title>Http Request Headers Example in JSP</title>
	</head>

	<body>
	<h2>HTTP Request Headers Received</h2>
	<table>