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Dancing While Coding

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Dancing While Coding
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@jboner
jboner / latency.txt
Last active June 8, 2025 17:15
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
@rohit00082002
rohit00082002 / example.php
Created May 23, 2012 05:05
Markdown Limited - a small, fast, safe markdown function in PHP
<?php
require('markdown_limited.php');
//header('Content-Type: text/plain; charset=UTF-8');
$text = file_get_contents('sample.txt');
print markdown_limited($text);
?>
<style type="text/css">
/* Don't judge me */
@danielestevez
danielestevez / gist:2044589
Last active April 13, 2025 23:35
GIT Commit to an existing Tag
1) Create a branch with the tag
git branch {tagname}-branch {tagname}
git checkout {tagname}-branch
2) Include the fix manually if it's just a change ....
git add .
git ci -m "Fix included"
or cherry-pick the commit, whatever is easier
git cherry-pick {num_commit}
@NTICompass
NTICompass / QRLogo.php
Created October 13, 2011 03:10
QR Code + Logo Generator
<?php
/**
* QR Code + Logo Generator
*
* http://labs.nticompassinc.com
*/
$data = isset($_GET['data']) ? $_GET['data'] : 'http://labs.nticompassinc.com';
$size = isset($_GET['size']) ? $_GET['size'] : '200x200';
$logo = isset($_GET['logo']) ? $_GET['logo'] : FALSE;