Skip to content

Instantly share code, notes, and snippets.

View nojvek's full-sized avatar

Noj Vek nojvek

View GitHub Profile
@crmorford
crmorford / branch-splitter
Last active September 8, 2017 00:22
split branch into assets and app-deploy
#!/bin/bash
BRANCH=$1
git_stuff() {
asset_type=$1
array=$2
git checkout master
echo "creating new branch for $asset_type files"
git checkout -b $BRANCH-$asset_type
@ljos
ljos / cocoa_keypress_monitor.py
Last active August 12, 2024 17:34
Showing how to listen to all keypresses in OS X through the Cocoa API using Python and PyObjC
#!/usr/bin/env python
#
# cocoa_keypress_monitor.py
# Copyright © 2016 Bjarte Johansen <Bjarte.Johansen@gmail.com>
#
# The MIT License (MIT)
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# “Software”), to deal in the Software without restriction, including
@jboner
jboner / latency.txt
Last active November 3, 2024 14:50
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