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@jboner
jboner / latency.txt
Last active September 13, 2026 12:51
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
@xPaw
xPaw / README.md
Last active September 16, 2024 23:57
Counter-Strike local server practice config
@mrexmelle
mrexmelle / create_docs.py
Created March 16, 2016 08:59
Python script to generate documentation using Grip
import getopt
import re, shutil, tempfile
import os
import subprocess
import sys
# http://stackoverflow.com/questions/4427542/how-to-do-sed-like-text-replace-with-python
def sed_inplace(filename, pattern, repl):
'''
@noelboss
noelboss / git-deployment.md
Last active August 18, 2026 10:37
Simple automated GIT Deployment using Hooks

Simple automated GIT Deployment using GIT Hooks

Here are the simple steps needed to create a deployment from your local GIT repository to a server based on this in-depth tutorial.

How it works

You are developing in a working-copy on your local machine, lets say on the master branch. Most of the time, people would push code to a remote server like github.com or gitlab.com and pull or export it to a production server. Or you use a service like deepl.io to act upon a Web-Hook that's triggered that service.

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.


Effective Engineer - Notes

What's an Effective Engineer?

@bgauduch
bgauduch / 0 - Multiple git identities on one machine.md
Last active September 9, 2026 16:19
Multiple git identities on one machine: config per folder and per provider (personal vs work). Every command verified.

Multiple git identities on one machine

One machine, several git identities (personal vs work, GitHub vs GitLab, two accounts on one provider). Each repository picks its own name, email and credentials. In a hurry: Appendix B, once per rule.

A wrong identity does not fail: git commits and pushes under the wrong author. Part 1 ends with the check that catches it.

Requirements

Feature Minimum git
@kapb14
kapb14 / base.html
Created October 17, 2018 07:14
Flask simplest realtime log file viewer
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" dir="ltr" class="uk-height-1-1">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>flasktest</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/bulma/0.7.1/css/bulma.min.css" />
<script defer src="https://use.fontawesome.com/releases/v5.3.1/js/all.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
@rizalp
rizalp / disable_spectre.md
Last active May 22, 2023 22:07
Disable Spectre/Meltdown Mitigation

In /etc/default/grub, modify:

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off tsx=on tsx_async_abort=off mitigations=off"

Then sudo update-grub

@ramantehlan
ramantehlan / README-Fancy.md
Last active August 6, 2026 15:47
README template I use for most of my projects.

Introduction

  • Add your project logo.
  • Write a short introduction to the project.
  • If you are using badges, add them here.

📒 Index

@asottile
asottile / backup_slack_emoji.py
Created September 6, 2019 21:40
script to export all slack emoji
import concurrent.futures
import json
import os.path
import urllib.request
token = '...'
url = f'https://slack.com/api/emoji.list?token={token}'
resp = urllib.request.urlopen(url)