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@jboner
jboner / latency.txt
Last active September 24, 2025 09:10
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
@fabrizioc1
fabrizioc1 / akamai_debug_headers.txt
Last active May 24, 2023 08:23
Akamai debug headers
Pragma: akamai-x-cache-on, akamai-x-cache-remote-on, akamai-x-check-cacheable, akamai-x-get-cache-key, akamai-x-get-extracted-values, akamai-x-get-nonces, akamai-x-get-ssl-client-session-id, akamai-x-get-true-cache-key, akamai-x-serial-no
@pksunkara
pksunkara / config
Last active September 16, 2025 17:53
Sample of git config file (Example .gitconfig) (Place them in $XDG_CONFIG_HOME/git)
# vi: ft=dosini
[user]
name = Pavan Kumar Sunkara
email = [email protected]
username = pksunkara
[core]
editor = nvim
whitespace = fix,-indent-with-non-tab,trailing-space,cr-at-eol
pager = delta
[column]
@jeffrafter
jeffrafter / server.js
Created August 28, 2010 21:37
Twitter OAuth with node-oauth for node.js+express
var express = require('express');
var sys = require('sys');
var oauth = require('oauth');
var app = express.createServer();
var _twitterConsumerKey = "YOURTWITTERCONSUMERKEY";
var _twitterConsumerSecret = "YOURTWITTERCONSUMERSECRET";
function consumer() {