Skip to content

Instantly share code, notes, and snippets.

View llazzaro's full-sized avatar
👨‍🚒
Fighting fire with fire 🔥

Leonardo Lazzaro llazzaro

👨‍🚒
Fighting fire with fire 🔥
View GitHub Profile
@jboner
jboner / latency.txt
Last active February 22, 2024 16:41
Latency Numbers Every Programmer Should Know
View 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
@superjose
superjose / .gitlab-ci.yml
Last active February 19, 2024 10:22
This is an example of a .gitlab-ci.yml that is required for Continuous Integration on GitLab projects.
View .gitlab-ci.yml
# Reference: https://www.exclamationlabs.com/blog/continuous-deployment-to-npm-using-gitlab-ci/
# GitLab uses docker in the background, so we need to specify the
# image versions. This is useful because we're freely to use
# multiple node versions to work with it. They come from the docker
# repo.
# Uses NodeJS V 9.4.0
image: node:9.4.0
# And to cache them as well.
View tmux_cheatsheet.markdown

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

@jpawlowski
jpawlowski / msys_hetzner-etc_network_interfaces
Created August 12, 2012 12:06
Debian network configuration for Proxmox VE server running on a Hetzner host
View msys_hetzner-etc_network_interfaces
# /etc/network/interfaces
#
auto lo
iface lo inet loopback
# device: eth0
iface eth0 inet manual
# IPv4 bridge
# (connect ONLY your firewall/router KVM instance here, this is the WAN device!)
@insin
insin / contactform.js
Last active January 9, 2024 05:27
React contact form example
View contactform.js
/** @jsx React.DOM */
var STATES = [
'AL', 'AK', 'AS', 'AZ', 'AR', 'CA', 'CO', 'CT', 'DE', 'DC', 'FL', 'GA', 'HI',
'ID', 'IL', 'IN', 'IA', 'KS', 'KY', 'LA', 'ME', 'MD', 'MA', 'MI', 'MN', 'MS',
'MO', 'MT', 'NE', 'NV', 'NH', 'NJ', 'NM', 'NY', 'NC', 'ND', 'OH', 'OK', 'OR',
'PA', 'RI', 'SC', 'SD', 'TN', 'TX', 'UT', 'VT', 'VA', 'WA', 'WV', 'WI', 'WY'
]
var Example = React.createClass({
@bishboria
bishboria / springer-free-maths-books.md
Last active January 3, 2024 15:57
Springer made a bunch of books available for free, these were the direct links
@marcan
marcan / bloom.py
Last active August 21, 2023 03:27
Simple Bloom filter implementation in Python 3 (for use with the HIBP password list)
View bloom.py
#!/usr/bin/python3
#
# Simple Bloom filter implementation in Python 3
# Copyright 2017 Hector Martin "marcan" <marcan@marcan.st>
# Licensed under the terms of the MIT license
#
# Written to be used with the Have I been pwned? password list:
# https://haveibeenpwned.com/passwords
#
# Download the pre-computed filter here (968MB, k=11, false positive p=0.0005):
@max-mapper
max-mapper / bibtex.png
Last active August 6, 2023 00:24
How to make a scientific looking PDF from markdown (with bibliography)
@ianschenck
ianschenck / new_app.py
Last active July 30, 2023 03:00
Run your flask app under twisted wsgi, ALWAYS.
View new_app.py
if __name__ == "__main__":
reactor_args = {}
def run_twisted_wsgi():
from twisted.internet import reactor
from twisted.web.server import Site
from twisted.web.wsgi import WSGIResource
resource = WSGIResource(reactor, reactor.getThreadPool(), app)
site = Site(resource)
@maraujop
maraujop / forms.py
Created February 15, 2012 19:04
django-crispy-forms bootstrap form example
View forms.py
# -*- coding: utf-8 -*-
from django import forms
from crispy_forms.helper import FormHelper
from crispy_forms.layout import Layout, Div, Submit, HTML, Button, Row, Field
from crispy_forms.bootstrap import AppendedText, PrependedText, FormActions
class MessageForm(forms.Form):
text_input = forms.CharField()